Efficient vibration dehydration system for high-ash-content wet slag

Abstract

The invention discloses an efficient vibration dewatering system for high-ash-content wet slag, and particularly relates to the field of efficient vibration dewatering, and the efficient vibration dewatering system comprises an initialization module, a screen structure self-adaptive optimization module, a collaborative regulation and control module, a linkage module, a grading compensation module and a dynamic readjustment module; the initialization module is used for collecting wet slag initial characteristic parameters through multi-sensor monitoring, setting initial operation parameters and providing basic data for subsequent regulation and control; the dynamic readjustment module is used for judging the dehydration end point based on the water content and the dehydration rate, triggering a dynamic readjustment mechanism when the dehydration end point does not reach the standard, and re-optimizing parameters to ensure the dehydration effect; the aperture of the screen is dynamically adjusted on the basis of the fine particle proportion and the ash content, the screen surface inclination angle is optimized in combination with the environment temperature and the wet slag flow speed, the screen structure matched with the wet slag characteristics in real time is obtained, and the problem that in the prior art, due to the fact that the screen structure is fixed, adaptability to different coal types and environment conditions is poor is solved.

Description

Technical Field

[0001] This invention relates to the field of high-efficiency vibration dewatering technology, and more specifically, to a high-efficiency vibration dewatering system for high-ash wet slag. Background Technology

[0002] In industrial production, high-ash wet slag is a common waste from industries such as coal and power. Its dewatering treatment is a key step in achieving solid waste reduction and resource utilization. The moisture content of wet slag directly affects the cost and feasibility of subsequent transportation, landfilling, or reuse. Therefore, efficient dewatering technology has always been a focus of industry research.

[0003] In existing technologies, vibration dewatering is widely used in wet slag treatment due to its advantages such as simple equipment structure and convenient operation. It achieves solid-liquid separation through the high-frequency vibration of a vibrating screen, which can reduce the moisture content of wet slag to a certain extent. However, this technology has significant drawbacks: First, the screen is easily clogged by fine particles in the wet slag, leading to a significant decrease in dewatering efficiency over time, especially for wet slag with an ash content higher than 30%. Second, the process parameters are mostly fixed values, making it impossible to dynamically adjust them according to the composition of the wet slag (such as the proportion of fine particles) and environmental conditions (such as temperature). This results in poor adaptability to different types of coal and difficulty in maintaining a stable moisture content below 30%. Third, the screen has insufficient wear resistance, leading to rapid wear when processing high-ash wet slag and high equipment maintenance costs.

[0004] Therefore, in view of the problems of easy screen clogging, poor parameter adaptability and rapid equipment wear in the existing technology, this invention proposes a high-efficiency vibration dewatering system for high ash wet slag. By optimizing the screen structure, establishing a dynamic parameter adjustment mechanism and introducing wear monitoring and compensation strategies, the system can achieve efficient reduction of the moisture content of wet slag, while improving the stability and service life of the equipment. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-efficiency vibration dewatering system for high-ash wet slag, which solves the problems mentioned in the background art through the following solutions.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency vibration dewatering system for high-ash wet slag, comprising: Initialization module: Collects initial characteristic parameters of wet slag through multi-sensor monitoring, and sets initial operating parameters to provide basic data for subsequent control; Screen structure adaptive optimization module: Based on the collected parameters, it performs calculations to achieve adaptive adaptation between the screen and the characteristics of wet slag; Collaborative control module: Real-time monitoring of the initial characteristic parameters of the wet slag, and by calculating the vibration frequency and amplitude, to achieve collaborative adaptation between the two and the state of the wet slag, thereby alleviating the adhesion problem; Linkage module: Based on the screen clogging rate and adhesion force, calculate the purging intensity and cycle of compressed air to achieve linkage removal of blockages and balance the clogging effect and energy consumption; Graded compensation module: Real-time monitoring of screen thickness and wear rate, and graded compensation based on the degree of wear to reduce wear and ensure continuous operation of the equipment; Dynamic readjustment module: Based on moisture content and dehydration rate, the dehydration endpoint is determined. If the endpoint is not reached, a dynamic readjustment mechanism is triggered to re-optimize the parameters to ensure the dehydration effect.

[0007] Preferably, the initial characteristic parameters of the wet slag include the proportion of fine particles p and the initial moisture content. Ash content (a), real-time ambient temperature (t), initial adhesion strength And the real-time flow rate v of the wet sludge; the initial operating parameters include the screen material being a polyetheretherketone composite material, and the initial thickness. Initial vibration frequency Initial screen aperture Initial screen inclination angle Initial pressure of compressed air purging device .

[0008] Preferably, the calculation includes pore size calculation and tilt angle calculation; the pore size is determined by the proportion of fine particles p and the ash content a. The inclination angle is calculated based on the real-time ambient temperature t and the real-time flow velocity v of the wet slag. The adaptive adaptation includes screen aperture adjustment and screen surface tilt angle adjustment; Screen aperture adjustment: Constraints: If the calculated value exceeds the range, the boundary value is taken; the sieve surface inclination angle adjustment: constraint conditions: When t < 0, force take = When t>40, forced selection = .

[0009] Preferably, the vibration frequency Where F represents the screen adhesion force, The amplitude represents the moisture content of the wet residue as monitored in real time during the dehydration process; The aforementioned collaborative adaptation has the following constraints: When v>5, force take >=25Hz; If the calculated value exceeds the range, the boundary value is taken.

[0010] Preferably, the purging intensity The period The linked clearing has the following constraints: When a>40, s>1500 is forced; When k>30, T=15 is forced.

[0011] Preferably, the wear rate Where h represents the real-time remaining thickness and ty represents the cumulative running time; the graded compensation: when Determined as mild wear: Maintain current parameters and automatically record wear data every 30 minutes; when Determined to be moderate wear: Adjust vibration frequency purging intensity =1.1s, reducing particle erosion on the screen; when If the screen is determined to be severely worn: activate the automatic switching program for the backup screen and trigger a maintenance alarm to ensure that the dewatering process is not interrupted.

[0012] Preferably, the determination of the dehydration endpoint is: when the moisture content of the wet residue collected in 5 consecutive samples reaches a certain level. And the dehydration rate When dehydration is deemed complete, the control center issues a shutdown command; the readjustment mechanism: if the running time exceeds 90 minutes and >30, or dehydration rate If the value is less than 0.3, the screen structure adaptive optimization module will be returned to re-execute the screen structure optimization, updating all control variables based on real-time parameters.

[0013] The technical effects and advantages of this invention are as follows: 1. This invention dynamically adjusts the screen aperture based on the proportion of fine particles and ash content, and optimizes the screen inclination angle in combination with ambient temperature and wet slag flow rate to obtain a screen structure that is adapted to the characteristics of wet slag in real time. This solves the problem of poor adaptability to different coal types and environmental conditions caused by the fixed screen structure in the prior art, and achieves the beneficial effects of improving the dewatering efficiency of wet slag with different ash content and particle size, and significantly enhancing stability. 2. This invention calculates the vibration frequency and amplitude based on real-time moisture content, screen adhesion force, and wet slag flow rate, and obtains vibration parameters that are precisely matched with the dewatering conditions. This solves the problems of fine particle adhesion and blockage and the decrease in dewatering efficiency with running time caused by fixed parameters in the prior art, and achieves the beneficial effects of reduced screen blockage rate and continuous high efficiency in the dewatering process. 3. This invention calculates the purging intensity and cycle based on the screen blockage rate, adhesion force and screen inclination angle, and obtains a compressed air purging strategy that can be adjusted on demand. This solves the problems of excessive energy consumption or untimely blockage removal caused by fixed purging parameters in the prior art, and achieves the beneficial effect of reducing operating energy consumption while ensuring continuous unobstructed screen. 4. This invention calculates the wear rate based on the remaining thickness of the screen and the cumulative running time, implements graded wear compensation, and obtains a targeted equipment protection strategy. This solves the problem of rapid screen wear and frequent maintenance caused by high ash wet slag in the prior art, and achieves the beneficial effects of extending the equipment maintenance cycle and reducing maintenance costs. 5. This invention obtains a precise dewatering process control scheme by setting an endpoint judgment and readjustment mechanism based on real-time moisture content and dewatering rate. It solves the problem of ineffective operation or substandard moisture content caused by the lack of dynamic judgment in the prior art, and achieves the beneficial effects of stable moisture content of wet residue and improved overall processing efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] As attached Figure 1 The high-efficiency vibration dewatering system for high-ash wet slag shown includes an initialization module, a screen structure adaptive optimization module, a collaborative control module, a linkage module, a grading compensation module, and a dynamic readjustment module.

[0017] The initialization module collects initial characteristic parameters of wet slag through multi-sensor monitoring and sets initial operating parameters to provide basic data for subsequent control. Specifically, it should be noted that the initial characteristic parameters of the wet sludge include the fine particle ratio p and the initial moisture content. Ash content (a), real-time ambient temperature (t), initial adhesion strength And the real-time flow rate v of the wet sludge; the initial operating parameters include the screen material being a polyetheretherketone composite material, and the initial thickness. Initial vibration frequency Initial screen aperture Initial screen inclination angle Initial pressure of compressed air purging device .

[0018] The screen structure adaptive optimization module performs calculations based on the collected parameters to achieve adaptive adaptation between the screen and the characteristics of wet slag. Specifically, it should be noted that the calculation includes pore size calculation and tilt angle calculation; the pore size is determined by the proportion of fine particles (p) and the ash content (a). The inclination angle is calculated based on the real-time ambient temperature t and the real-time flow velocity v of the wet slag. The adaptive adaptation includes screen aperture adjustment and screen surface tilt angle adjustment; Screen aperture adjustment: Constraints: If the calculated value exceeds the range, the boundary value is taken; the sieve surface inclination angle adjustment: constraint conditions: When t < 0, force take = When t>40, forced selection = .

[0019] The coordinated control module monitors the initial characteristic parameters of the wet slag in real time, and calculates the vibration frequency and amplitude to achieve coordinated adaptation between the two and the state of the wet slag, thereby alleviating the adhesion problem. Specifically, it should be noted that the vibration frequency... Where F represents the screen adhesion force, The amplitude represents the moisture content of the wet residue as monitored in real time during the dehydration process; The aforementioned collaborative adaptation has the following constraints: When v>5, force take >=25Hz; If the calculated value exceeds the range, the boundary value is taken.

[0020] The linkage module calculates the purging intensity and cycle of compressed air based on the screen blockage rate and adhesion force, thereby achieving linkage removal of blockages and balancing the clearing effect and energy consumption. Specifically, it should be noted that the purging intensity... The period The linked clearing has the following constraints: When a>40, s>1500 is forced; When k>30, T=15 is forced.

[0021] The graded compensation module: monitors screen thickness and wear rate in real time, and implements graded compensation according to the degree of wear to reduce wear and ensure continuous operation of the equipment; Specifically, it should be noted that the wear rate... Where h represents the real-time remaining thickness and ty represents the cumulative running time; the graded compensation: when Determined as mild wear: Maintain current parameters and automatically record wear data every 30 minutes; when Determined to be moderate wear: Adjust vibration frequency purging intensity =1.1s, reducing particle erosion on the screen; when If the screen is determined to be severely worn: activate the automatic switching program for the backup screen and trigger a maintenance alarm to ensure that the dewatering process is not interrupted.

[0022] The dynamic readjustment module determines the dehydration endpoint based on moisture content and dehydration rate. If the endpoint is not reached, a dynamic readjustment mechanism is triggered to re-optimize parameters to ensure the dehydration effect.

[0023] Specifically, it should be noted that the endpoint of dehydration is determined when the moisture content of the wet residue collected in five consecutive samples reaches a certain level. And the dehydration rate When dehydration is deemed complete, the control center issues a shutdown command; the readjustment mechanism: if the running time exceeds 90 minutes and >30, or dehydration rate If the value is less than 0.3, the screen structure adaptive optimization module will be returned to re-execute the screen structure optimization, updating all control variables based on real-time parameters.

[0024] This invention dynamically adjusts the screen aperture based on the proportion of fine particles and ash content, and optimizes the screen inclination angle by combining ambient temperature and wet slag flow rate. This results in a screen structure that adapts to the characteristics of wet slag in real time, solving the problem of poor adaptability to different coal types and environmental conditions caused by fixed screen structures in existing technologies. It achieves the beneficial effects of improved dewatering efficiency and significantly enhanced stability for wet slag with different ash contents and particle sizes. Furthermore, by calculating the vibration frequency and amplitude based on real-time moisture content, screen adhesion force, and wet slag flow rate, vibration parameters precisely matched to the dewatering conditions are obtained. This solves the problem of fine particle adhesion and clogging, and decreased dewatering efficiency over time caused by fixed parameters in existing technologies. This achieves the beneficial effects of reduced screen clogging rate and continuous high efficiency in the dewatering process. Finally, by calculating the purging intensity and cycle based on screen clogging rate, adhesion force, and screen inclination angle, the invention obtains… The on-demand compressed air purging strategy solves the problems of excessive energy consumption or untimely blockage removal caused by fixed purging parameters in existing technologies, achieving the beneficial effects of reduced operating energy consumption while ensuring continuous unobstructed screen flow. Based on the remaining screen thickness and cumulative operating time, the wear rate is calculated, and graded wear compensation is implemented to obtain a targeted equipment protection strategy. This solves the problems of rapid screen wear and frequent maintenance caused by high-ash wet slag in existing technologies, achieving the beneficial effects of extended equipment maintenance cycles and reduced maintenance costs. By setting an endpoint judgment and readjustment mechanism based on real-time moisture content and dewatering rate, a precise dewatering process control scheme is obtained, solving the problems of ineffective operation or substandard moisture content caused by the lack of dynamic judgment in existing technologies. This achieves the beneficial effects of stable wet slag moisture content and improved overall processing efficiency.

[0025] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency vibrating dewatering system for high-ash wet sludge, characterized by, The application relates to a wet slag dewatering system and a control method thereof. The initialization module: the initial characteristic parameters of the wet slag are collected through multi-sensor monitoring, and initial operation parameters are set, so that basic data are provided for subsequent regulation and control; The self-adaptive optimization module of the screen structure: based on the collected parameters, the self-adaptive adaptation of the screen and the characteristics of the wet slag is realized; The collaborative regulation and control module: the initial characteristic parameters of the wet slag are monitored in real time, the vibration frequency and amplitude are calculated, the collaborative adaptation of the two and the state of the wet slag is realized, and the problem of adhesion is relieved; The linkage module: according to the screen blockage rate and the adhesion force, the blowing strength and cycle of compressed air are calculated, the linkage removal of blockage is realized, and the cleaning effect and energy consumption are balanced; The hierarchical compensation module: the thickness and wear rate of the screen are monitored in real time, hierarchical compensation is implemented according to the wear degree, wear is reduced, and continuous operation of the equipment is ensured; The dynamic readjustment module: the dehydration end point is judged based on the moisture content and the dehydration rate, the dynamic readjustment mechanism is triggered when the standard is not met, and the parameters are re-optimized to ensure the dehydration effect.

2. The high-efficiency vibration dewatering system of high-ash wet residue according to claim 1, characterized in that: The initial characteristic parameters of the wet sludge include the fine particle ratio p and the initial moisture content. Ash content (a), real-time ambient temperature (t), initial adhesion strength And the real-time flow rate v of the wet sludge; the initial operating parameters include the screen material being a polyetheretherketone composite material, and the initial thickness. Initial vibration frequency Initial screen aperture Initial screen inclination angle Initial pressure of compressed air purging device .

3. The high-efficiency vibration dewatering system of high-ash wet residue according to claim 1, characterized in that: The calculation includes aperture calculation and inclination calculation; the aperture calculation is determined by the fine particle proportion p and the ash content a to obtain the aperture ; the inclination calculation is calculated according to the real-time environment temperature t and the real-time wet slag flow rate v to obtain the inclination ; the self-adaptive adaptation includes screen aperture adjustment and screen surface inclination adjustment; the screen aperture adjustment: constraint condition: , if the calculated value exceeds the range, the boundary value is taken; the screen surface inclination adjustment: constraint condition: , when t<0, the = is forced to take = is forced to take 4. The high-efficiency vibration dewatering system of high-ash wet residue according to claim 2, characterized in that: said vibration frequency where F represents the screen adhesion force, represents the real-time monitored moisture content of the wet slag during the dewatering process; said amplitude ; said synergic adaptation: constraint conditions: , v > 5, the value is forced to take >= 25 Hz; if the calculated value is outside the range, the boundary value is taken.

5. A high efficiency vibration dewatering system of high ash content wet sludge as claimed in claim 3 wherein: The purging intensity ; the period ; the linkage clearance: constraints: , when a>40, forced to take s>1500; , when k>30, forced to take T=15.

6. A high efficiency vibration dewatering system of high ash content wet sludge as claimed in claim 2 wherein: The wear rate Where h represents the real-time residual thickness, ty represents the cumulative running time; the grading compensation: when Determine as mild wear: maintain the current parameters, automatically record wear data every 30 minutes; when Determine as moderate wear: adjust the vibration frequency , purge intensity =1.1s, reduce the scouring of particles on the screen; when Determine as severe wear: start the standby screen automatic switching program, and trigger the maintenance alarm at the same time, to ensure that the dewatering process is not interrupted.

7. A high efficiency vibration dewatering system of high ash content wet sludge as claimed in claim 2 wherein: The judgment of dehydration endpoint: when the moisture content of wet residue collected for 5 times successively , and the dehydration rate is greater than 0.3, dehydration is determined to be completed, and the control center issues a stop command; the readjustment mechanism: if the running time is greater than 90 minutes and the dehydration rate > 30, or the dehydration rate < 0.3, the screen structure self-adaptive optimization module is returned to execute screen structure optimization again, and all control variables are updated based on real-time parameters.

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