Fly ash mortar fluid metering and quality optimizing system and method

Abstract

The invention relates to the technical field of treatment of fly ash generated by waste incineration power generation, in particular to a system and a method for fluid metering and quality optimization of fly ash and mortar, and aims at efficiently and accurately metering the flow and the efficient proportion of the fly ash and mortar. The method comprises the following steps: firstly, carrying out homogenization treatment on the fly ash generated by municipal waste incineration power generation from different places by taking water as a medium, so as to reduce the component difference; the method comprises the following steps: homogenizing fly ash slurry, performing primary efficient stirring on the homogenized fly ash slurry through special equipment to ensure uniform distribution of fly ash particles, monitoring the concentration of the stirred fly ash slurry in real time through a primary concentration meter, and determining the optimal concentration to provide basic data for subsequent metering and proportioning; according to the method, automatic proportioning and optimization of the fly ash mortar can be realized, so that the overall efficiency and the product quality of a fly ash wet ball-milling process are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fly ash treatment in municipal solid waste power plants, and specifically to a system and method for fly ash slurry fluid metering and fly ash slurry quality optimization. The system aims to efficiently and accurately measure the flow rate and quality of fly ash slurry, and achieve automatic proportioning and optimization of fly ash slurry according to the design capacity of the ball mill and the requirements of the material proportioning process, so as to improve the overall efficiency and product quality of the wet fly ash ball milling process. It is applicable to process scenarios such as fly ash hazardous waste treatment, resource utilization, and environmental protection material preparation. Background Art

[0002] The fly ash generated during the incineration process of municipal solid waste power plants has a particle size range mainly between 10 - 100um, showing characteristics of dispersion, easy fluidity, and easy dusting. Fly ash is a hazardous waste with complex components, containing harmful substances such as heavy metals like dioxins and furans, as well as soluble salts, and components with hygroscopicity and corrosiveness, posing a potential threat to the environment and human health. Therefore, it is crucial to properly treat fly ash; In the prior art, the treatment methods for fly ash include landfill method, high-temperature sintering method, high-temperature melting method, and cement kiln co-processing method; among them. The landfill method requires a large amount of landfill sites, and fly ash needs to be loaded, unloaded, and transported over a long distance, with high costs; moreover, the landfill method is prone to rain erosion and groundwater leakage, polluting the underground water source; the high-temperature sintering method for treating fly ash has high costs and low added value of the finished product; the high-temperature melting method for treating fly ash requires high energy costs; the cement kiln co-processing method has a small addition ratio in cement and cannot meet the need for a large amount of harmless treatment of fly ash; therefore, other methods are needed to treat fly ash. In the patent with the patent number 202310660187.7, a wet - high-temperature sintering technology is provided, which can achieve the non-toxic and harmless treatment of fly ash and produce industrial additives suitable for multiple industries, thus realizing the resource recycling of fly ash. It is a relatively ideal method for treating fly ash, but this method for treating fly ash requires precise metering and quality optimization of fly ash to ensure that the amount of fly ash precisely meets the requirements of subsequent processes; there is no proprietary system in the prior art for precisely metering and quality optimizing fly ash slurry, and it cannot meet the refined treatment of fly ash. Summary of the Invention

[0003] The purpose of the present invention is to provide a system and method for fly ash slurry fluid metering and quality optimization in view of the above-mentioned drawbacks.

[0004] This technical solution is realized as follows: A system for fly ash slurry fluid metering and quality optimization has the following structure: It includes a homogenization tank, a mass flow meter, a standard metering tank, a high-pressure flushing pump, a ball mill, a dry ash tank, a negative pressure screw conveyor, a weighing scale, a slurry tank, and a quality optimization control system; the homogenization tank and the metering tank are connected by pipelines, and a mass flow meter is provided between the pipelines of the homogenization tank and the metering tank; the high-pressure flushing pump is connected to the metering tank, the outlet of the metering tank is connected to the slurry tank through a pipeline, and the high-pressure flushing pump can flush the metering tank, and the flushed slurry flows into the slurry tank; the outlet of the metering tank is connected to the ball mill through another pipeline, and an automatic discharging valve and a secondary flow meter are provided on this pipeline; the dry ash tank and the metering tank are connected by a pipeline, and a negative pressure screw conveyor and a weighing scale are provided on this pipeline; Among them, the homogenization tank is used to homogenize and stir the fly ash slurry, and a stirring and pumping slurry pump is provided in the homogenization tank, and the stirring and pumping slurry pump can stir and pump the homogenization tank; a primary concentration meter is provided in the homogenization tank, and the primary concentration meter can monitor the slurry concentration in the homogenization tank; Specifically, the mass flow meter is a dedicated Coriolis force mass flow meter, which can measure parameters such as the mass flow, density, volume, temperature, and fly ash mass of the slurry; The metering tank is a carbon steel closed storage tank, and an aerator, a secondary concentration measuring instrument, and a liquid level gauge are provided inside it; among them, the aerator is used to stir the slurry to make it evenly mixed, the secondary concentration measuring instrument is used to measure the slurry concentration in the metering tank, and the liquid level gauge is used to measure the liquid level height in the metering tank; The ball mill is used to ball mill the fly ash slurry and other auxiliary materials, and after ball milling, it enters the next process; a weighing module is provided in the ball mill, which is used to weigh other auxiliary materials before ball milling.

[0005] The dry ash tank is filled with fly ash; The negative pressure screw conveyor is used to supplement the fly ash in the dry ash tank into the metering tank, and the weighing scale measures the ash supplement amount; The quality optimization control system can receive the material information of the primary concentration meter, the mass flow meter, the secondary concentration measuring instrument, the liquid level gauge, the secondary flow meter, the weighing module, and the weighing scale, and can control the actions of the stirring and pumping slurry pump, the aerator, the high-pressure flushing pump, the automatic discharging valve, the negative pressure screw conveyor, and each valve.

[0006] Furthermore, a secondary pipeline is provided between the dry ash tank and the ball mill, and the dry ash in the dry ash tank is directly supplemented into the ball mill through the secondary pipeline. A negative pressure screw conveyor and a weighing scale are also provided on the secondary pipeline for transporting dry ash and metering.

[0007] Then operate according to the following steps s0: Obtain the preset concentration and mass of the slurry according to the requirements of the subsequent ball milling process S1: Fly ash homogenization treatment and preliminary mixing The specific steps of step S1 are as follows: S1-1: Homogenize and age fly ash from different sources in a homogenization tank S1-2: Add water to the homogenization tank, and preliminarily mix the homogenized fly ash through a stirring and pumping slurry pump 2 to fully mix the fly ash and water; S2: Primary concentration monitoring and starting of the stirring and pumping slurry pump The specific steps of step S2 are as follows: S2-1: Continuously monitor the slurry concentration in the homogenization tank with a primary concentration meter, and start the stirring and pumping slurry pump when the slurry concentration basically reaches the preset value.

[0008] S2-2: The stirring and pumping slurry pump pumps the slurry to the subsequent metering equipment through a special pipeline.

[0009] S3: Primary metering and slurry transportation The specific steps of step S3 are as follows: S3-1: The slurry is subjected to primary metering by a high-precision mass flowmeter, and the total slurry volume and fly ash weight are recorded. The preferred solution is: This mass flowmeter uses a Coriolis force mass flowmeter, equipped with modular electronic components and redundant data storage functions, to realize the measurement and metering of mass flow, density, volume, temperature, volume concentration, and fly ash mass.

[0010] S3-2: After being metered, the slurry is sent into a standard metering tank through a pipeline; S4: Operation adjustment in the standard metering tank The specific steps of step S4 are as follows: S4-1: An aerator, a liquid level gauge, and a secondary concentration measuring instrument are arranged in the standard metering tank; a high-pressure flushing pump is connected outside the standard metering tank; the discharge port of the standard metering tank is connected to a slurry pool through a pipeline and to a ball mill through another pipeline, and an automatic discharging valve and a secondary flowmeter are provided on the pipeline connected to the ball mill.

[0011] S4-2: The liquid level gauge continuously monitors the liquid level height in the standard metering tank. When the liquid level in the tank reaches the preset value, the liquid level gauge sends a signal to the quality optimization ratio control system, and the system automatically stops the operation of the stirring and pumping slurry pump and simultaneously starts the aerator for secondary stirring to ensure the uniformity of the slurry.

[0012] S5: Transmission of primary metering data and ash replenishment operation S5-1: Transmit the concentration data and metering data monitored in steps S2-1 and S3-1 to the quality optimization ratio system. If the fly ash weight or concentration in the slurry is lower than the preset index ratio parameter, the control system will start the automatic ash replenishment weighing device; s5-2: The control system controls the screw conveyor to open, and the dry fly ash enters the standard metering tank through the dry ash duct under the drive of the screw conveyor. A weighing scale is provided between the screw conveyor and the standard metering tank to measure the amount of ash replenishment.

[0013] s6: Secondary concentration monitoring and secondary metering s6-1: A secondary concentration measuring instrument is used to continuously monitor the ash slurry concentration in the standard metering tank. The monitoring data is transmitted to the quality optimization ratio system. When the ash slurry concentration is qualified, the quality optimization ratio system controls the negative pressure screw conveyor to close, and then controls the automatic discharge valve to open. The ash slurry flows by gravity to the special secondary flowmeter for secondary metering.

[0014] s6-2: After the secondary flowmeter records the total amount of ash slurry and the weight of fly ash for secondary metering, the ash slurry meeting the requirements of the ball milling process ratio is sent to the ball milling device.

[0015] s8: Weighing and batching of the ball mill The ball mill is equipped with a weighing module to weigh and measure auxiliary materials and grinding stones according to the requirements of the ratio process.

[0016] s9: Cleaning and system circulation s9-1: After the standard metering tank is emptied, the high-pressure flushing device is started to clean the metering equipment, pipelines, valves, etc. The cleaning water is discharged into the slurry pond to prevent fly ash precipitation and blockage at the same time.

[0017] s9-2: After the cleaning is completed, the system remains in a normal standby state to ensure the best state for the fly ash metering and quality optimization ratio process in the next cycle.

[0018] Furthermore, there is s7 between s6 and s8, and the steps of s7 are as follows: s7: Verification of secondary metering data and ash replenishment operation The secondary concentration data and secondary metering data monitored in s6-1 are transmitted to the control system and compared with the ash replenishment amount in s5-2 and the primary concentration data and primary metering data in s2-1 and s3-1; the secondary metering data should be equal to the primary metering data + the ash replenishment amount. If there is a deviation <deviation beyond the process ratio range>, the control system will start the automatic ash replenishment device and directly send it into the ball mill through the secondary pipeline until the requirements of the ball milling process are met.

[0019] Beneficial effects: The method and system for fly ash slurry fluid metering and quality optimization have these beneficial effects.

[0020] (1) Precise metering and ratio: Through the metering of high-precision mass flowmeters, ash replenishment metering, and special ash slurry flowmeters, precise metering and ratio of fly ash slurry are ensured to meet the requirements of the ball milling process. Through multiple metering and adjustment, the quality and concentration of fly ash slurry are ensured to meet the requirements of subsequent processes.

[0021] (2) Automatic control: The quality optimization control system can monitor and adjust the mortar concentration and weight ratio in real time, achieve flexible ash replenishment, realize automatic control and data verification, and improve production efficiency and product quality.

[0022] (3) Environmental protection and safety: The system adopts processes such as negative pressure screw conveying of dry ash and aeration stirring. In the applicable scenarios of water medium, it can effectively reduce fly ash dust and environmental pollution, and ensure the health and safety of operators.

[0023] (4) Easy to maintain: The system design takes into account the convenience of cleaning and maintenance. The metering equipment and pipelines are cleaned through a high-pressure flushing device to ensure the long-term stable operation of the system. Description of the Drawings

[0025] Figure 1 is a schematic diagram of the fly ash mortar fluid metering and quality optimization system; Wherein: 1, homogenization tank; 2, stirring and pumping slurry pump; 3, primary concentration meter; 4, mass flow meter; 5, standard metering tank; 6, aerator; 7, secondary concentration measuring instrument; 8, liquid level meter; 9, high-pressure flushing pump; 10, automatic discharging valve; 11, secondary flow meter; 12, ball mill; 13, weighing module; 14, dry ash tank; 15, negative pressure screw conveyor; 16, weighing scale; 17, slurry tank; 18, valve; 19, secondary pipeline. Specific Embodiments

[0026] The technical solutions of the present invention will be further described below in conjunction with embodiments.

[0027] First, a fly ash mortar fluid metering and quality optimization system is introduced, as Figure 1 shown, including a homogenization tank 1, a mass flow meter 4, a standard metering tank 5, a high-pressure flushing pump 9, a ball mill 12, a dry ash tank 14, a negative pressure screw conveyor 15, a weighing scale 16, a slurry tank 17, and a quality optimization control system; The homogenization tank 1 is connected to the standard metering tank 5 through a pipeline, and a mass flow meter 4 is provided between the pipelines of the homogenization tank 1 and the standard metering tank 5; the high-pressure flushing pump 9 is connected to the metering tank 5, the outlet of the metering tank 5 is connected to the slurry tank 17 through a pipeline, and the high-pressure flushing pump 9 can flush the metering tank, and the flushed slurry flows into the slurry tank; the outlet of the metering tank 5 is connected to the ball mill 12 through another pipeline, and an automatic discharging valve 10 and a secondary flow meter 11 are provided on this pipeline; the dry ash tank 14 is connected to the metering tank 5 through a pipeline, and a negative pressure screw conveyor 15 and a weighing scale 16 are provided on this pipeline; Among them, the homogenization tank 1 is used to homogenize the fly ash mortar. A stirring and pumping slurry pump 2 is provided in the homogenization tank, and the stirring and pumping slurry pump can stir and pump the slurry in the homogenization tank; a primary concentration meter 3 is provided in the homogenization tank, and the primary concentration meter 3 can monitor the concentration of the mortar in the homogenization tank; The mass flowmeter 4 is specifically a dedicated Coriolis mass flowmeter, which can measure parameters such as the mass flow, density, volume, temperature, and fly ash mass of the mortar; The metering tank 5 is a carbon steel closed storage tank, which is provided with an aerator 6, a secondary concentration measuring instrument 7, and a liquid level gauge 8; among them, the aerator 6 is used to stir the mortar to make it evenly mixed, the secondary concentration measuring instrument 7 is used to measure the concentration of the mortar in the metering tank, and the liquid level gauge 8 is used to measure the liquid level height in the metering tank; The ball mill 12 is used to ball mill the fly ash mortar and other auxiliary materials, and after ball milling, it enters the next process; a weighing module 13 is provided in the ball mill, which is used to weigh other auxiliary materials before ball milling.

[0028] The dry ash tank 14 is filled with fly ash, which is equivalent to a warehouse for storing fly ash; The negative pressure screw conveyor 15 is used to supplement the fly ash in the dry ash tank into the metering tank, and the weighing scale 16 measures the amount of ash replenished; The mass optimization control system can receive the material information of the primary concentration meter, mass flowmeter, secondary concentration measuring instrument, liquid level gauge, secondary flowmeter, weighing module, and weighing scale, and can control the actions of the stirring and pumping slurry pump, aerator, high-pressure flushing pump, automatic discharging valve, negative pressure screw conveyor, and each valve.

[0029] In the figure, 18 is a valve.

[0030] Furthermore, a secondary pipeline is provided between the dry ash tank and the ball mill. The dry ash in the dry ash tank can be directly supplemented into the ball mill through the secondary pipeline. The secondary pipeline is shown as 19 in the figure. The secondary pipeline is also provided with a negative pressure screw conveyor 15 and a weighing scale 16 for transporting dry ash and metering.

[0031] The following further explains this system in combination with the operation method: S0: According to the requirements of the subsequent ball milling process, obtain the preset concentration and mass of the mortar.

[0032] S1: Fly ash homogenization treatment and preliminary stirring The specific steps of step S1 are as follows: S1-1: Homogenize and age the fly ash from different sources in the homogenization tank 1; S1-2: Add water to the homogenization tank, and preliminarily stir the homogenized fly ash through the stirring and pumping slurry pump 2 to make the fly ash and water fully mixed; s2: Primary Concentration Monitoring and Stirring Slurry Pump Startup The specific steps of s2 are as follows: s2-1: Continuously monitor the ash slurry concentration in the homogenization tank using the primary concentration meter 3. When the ash slurry concentration basically reaches the preset value, start the slurry pumping function of the stirring slurry pump 2.

[0033] s2-2: The stirring slurry pump 2 pumps the ash slurry to the subsequent metering equipment through a dedicated pipeline.

[0034] s3: Primary Metering and Ash Slurry Transportation The specific steps of s3 are as follows: s3-1: The ash slurry undergoes primary metering by the high-precision mass flowmeter 4, recording the total amount of ash slurry and the weight of fly ash. Preferred solution: This mass flowmeter uses a Coriolis force mass flowmeter, equipped with modular electronic components and redundant data storage functions, to achieve the measurement and metering of mass flow, density, volume, temperature, volume concentration, and fly ash mass.

[0035] s3-2: After metering, the ash slurry is sent into the standard metering tank 5 through a pipeline.

[0036] s4: Operation and Regulation inside the Standard Metering Tank The specific steps of s4 are as follows: s4-1: An aerator 6, a level gauge 8, and a secondary concentration measuring instrument 7 are installed inside the standard metering tank 5; a high-pressure flushing pump 9 is connected outside the standard metering tank; The discharge port of the standard metering tank is connected to the slurry pool 17 through one pipeline and to the ball mill 12 through another pipeline. An automatic discharge valve 10 and a secondary flowmeter 11 are provided on the pipeline connected to the ball mill; s4-2: The level gauge continuously monitors the liquid level height inside the standard metering tank. When the liquid level in the tank reaches the preset value, the level gauge sends a signal to the quality optimization ratio control system, and the system automatically stops the operation of the stirring slurry pump 2 and simultaneously starts the aerator 6 for secondary stirring to ensure the uniformity of the ash slurry.

[0037] s5: Transmission of Primary Metering Data and Fly Ash Supplementary Operation s5-1: Transmit the concentration data and metering data monitored in steps s2-1 and s3-1 to the quality optimization ratio system. If the weight or concentration of fly ash in the ash slurry is lower than the preset index ratio parameter, the control system will start the automatic fly ash supplementary weighing device; s5-2: The control system controls the negative pressure screw conveyor 15 to open, and the dry fly ash enters the standard metering tank through the dry ash duct under the drive of the negative pressure screw conveyor 15. A weighing scale 16 is provided between the negative pressure screw conveyor 15 and the standard metering tank to measure the supplementary fly ash amount.

[0038] s6: Secondary Concentration Monitoring and Secondary Metering s6-1: Adopt a secondary concentration measuring instrument 7 to continuously monitor the mortar concentration in the standard metering tank. The monitoring data is transmitted to the quality optimization ratio system. When the mortar concentration is qualified, the quality optimization ratio system controls the negative pressure screw conveyor 15 to close, and then controls the automatic discharge valve 10 to open. The mortar flows by gravity to the dedicated secondary flowmeter 11 for secondary metering.

[0039] s6-2: After the secondary flowmeter 11 records the total amount of mortar and the weight of fly ash during secondary metering, the mortar meeting the requirements of the ball milling process ratio is sent to the ball milling device.

[0040] s8. Weighing and batching of the ball mill The ball mill is equipped with a weighing module 13 to weigh and measure auxiliary materials and grinding stones according to the requirements of the ratio process.

[0041] s9. Cleaning and system circulation s9-1: After the standard metering tank is emptied, start the high-pressure flushing pump 9 to clean the metering equipment, pipelines, valves, etc. The cleaning water is discharged into the slurry pool 17, and at the same time, prevent fly ash from precipitating and blocking.

[0042] s9-2: After the cleaning is completed, the system maintains a normal standby state to ensure the best state for the fly ash metering and quality optimization ratio process for the next cycle.

[0043] Through all the above steps, the fly ash fed into the ball mill is accurately metered and proportioned, and the accurately metered and proportioned mortar is sent into the ball mill, meeting the process requirements of subsequent ball milling and preparation, etc.

[0044] Furthermore, there is also step s7 between step s6 and step s8; s7: Secondary metering data verification and ash replenishment operation The secondary metering data monitored in s6-1 is transmitted to the control system and compared with the ash replenishment amount in s5-2 and the primary metering data in s3-1; the secondary metering data should be equal to the sum of the primary metering data and the ash replenishment amount. If there is a deviation <deviation beyond the process ratio range>, it indicates that there is a loss of mortar in the pipeline. The control system will start the automatic ash replenishment device and directly send it into the ball mill through the secondary pipeline 19 until the requirements of the ball milling process are met.

[0045] Setting s7 is to calibrate the fly ash concentration and fly ash amount fed into the ball mill again, making the fly ash metering and proportioning more accurate.

[0046] Furthermore, the standard metering tank 5 is a metering tank with a certain height difference.

[0047] In this way, the mortar in the standard metering tank can flow by gravity to the secondary flowmeter and the ball mill without being pumped by a pump, saving energy.

[0048] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any person skilled in the art, within the scope of the technical solution of the present invention, can make some changes or modifications to equivalent embodiments by using the disclosed technical content, but as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A system for measuring and optimizing the quality of fly ash slurry fluid has the following structure: It includes a homogenizing tank, a mass flow meter, a standard metering tank, a high-pressure flushing pump, a ball mill, a dry ash tank, a negative pressure screw conveyor, a metering scale, a pulp tank, and a quality optimization control system; the homogenizing tank and the metering tank are connected by a pipeline, and a mass flow meter is provided between the pipelines of the homogenizing tank and the metering tank; the high-pressure flushing pump is connected to the metering tank, and the outlet of the metering tank is connected to the pulp tank through a pipeline, and the high-pressure flushing pump can flush the metering tank, and the flushed pulp flows into the pulp tank; the outlet of the metering tank is connected to the ball mill through another pipeline, and an automatic discharge valve and a secondary flow meter are provided on this pipeline; the dry ash tank and the metering tank are connected by a pipeline, and a negative pressure screw conveyor and a metering scale are provided on this pipeline; in, The homogenizing tank is used to homogenize and stir the fly ash slurry. A stirring and slurry pump is provided in the homogenizing tank, and the stirring and slurry pump can stir and slurry the homogenizing tank. A primary concentration meter is provided in the homogenizing tank, and the primary concentration meter can monitor the slurry concentration in the homogenizing tank. The mass flow meter is specifically a dedicated Coriolis force mass flow meter, which can measure the mass flow, density, volume, temperature and fly ash mass parameters of the slurry; The metering tank is a carbon steel sealed storage tank, which is equipped with an aerator, a secondary concentration measuring instrument, and a liquid level meter; wherein the aerator is used to stir the mortar to make it evenly mixed, the secondary concentration measuring instrument is used to measure the mortar concentration in the metering tank, and the liquid level meter is used to measure the liquid level height in the metering tank; The ball mill is used to ball-mill fly ash slurry and other auxiliary materials, and then enter the next process after ball-milling; a weighing module is provided in the ball mill to weigh other auxiliary materials before ball-milling; The dry ash tank is filled with fly ash; The negative pressure screw conveyor is used to add the fly ash in the dry ash tank to the metering tank, and the metering scale measures the amount of ash added; The quality optimization control system can accept material information from the primary concentration meter, mass flow meter, secondary concentration measuring instrument, liquid level meter, secondary flow meter, weighing module, and metering scale, and can control the action of the stirring slurry pump, aerator, high-pressure flushing pump, automatic discharge valve, negative pressure screw conveyor, and various valves.

2. The fly ash slurry fluid metering and quality optimization system according to claim 1 is characterized in that: A secondary pipeline is provided between the dry ash tank and the ball mill. The dry ash in the dry ash tank is directly added to the ball mill through the secondary pipeline. A negative pressure screw conveyor and a metering scale are also provided on the secondary pipeline for conveying dry ash and metering.

3. A method for metering and optimizing the quality of fly ash slurry fluid, comprising the following steps: s0: Get the preset concentration and quality of slurry according to the needs of ball milling process; s1: fly ash homogenization and preliminary mixing; s2: primary concentration monitoring and stirring slurry pump start; s3: primary metering and slurry transportation; s4: Operation and adjustment in standard metering tank; s5: primary metering data transmission and dust filling operation; s6: Secondary concentration monitoring and secondary measurement; s8, ball mill weighing and batching; s9. Cleaning and system circulation.

4. The method for metering and optimizing the quality of fly ash slurry fluid according to claim 3, characterized in that: The specific steps of step s1 are: s1-1: Fly ash from different sources is homogenized and aged in a homogenization tank. s1-2: The fly ash after homogenization is initially stirred by a stirring slurry pump to fully mix the fly ash and water; The specific steps of s2 are: s2-1: Use the primary concentration meter to monitor the slurry concentration in the homogenization tank at all times. When the slurry concentration basically reaches the preset value, start the stirring and slurry pump; s2-2: The mixing and slurry pump pumps the slurry to the subsequent metering equipment through a dedicated pipeline; The specific steps of s3 are: s3-1: The slurry is metered at the first level by a high-precision mass flow meter to record the total amount of slurry and fly ash weight; s3-2: After being measured, the mortar is sent to the standard measuring tank through the pipeline; The specific steps of s4 are: s4-1: The standard metering tank is provided with an aerator, a liquid level meter, a secondary concentration measuring instrument, and a high-pressure flushing pump is connected to the outside of the standard metering tank; the discharge port of the standard metering tank is connected to the slurry tank through a pipeline, and is connected to the ball mill through another pipeline, and an automatic discharge valve and a secondary flow meter are provided on the pipeline connected to the ball mill; s4-2: The liquid level meter constantly monitors the liquid level in the standard metering tank. When the liquid level in the tank reaches the preset value, the liquid level meter sends a signal to the quality optimization ratio control system, and the system automatically stops the stirring and slurry pumping work, and starts the aerator for secondary stirring to ensure the uniformity of the slurry; The specific steps of s5 are: s5-1: The concentration data and metering data monitored in steps s2-1 and s3-1 are transmitted to the quality optimization ratio system. If the fly ash weight or concentration in the slurry is lower than the preset index ratio parameter, the control system will start the automatic ash replenishment weighing device; s5-2: The control system controls the screw conveyor to open, and the dry fly ash is driven by the screw conveyor through the dry ash pipe into the standard metering tank. A metering scale is provided between the screw conveyor and the standard metering tank to measure the ash filling amount; The specific steps of s6 are: s6-1: A secondary concentration measuring instrument is used to monitor the mortar concentration in the standard metering tank at all times. The monitoring data is transmitted to the quality optimization ratio system. When the mortar concentration is qualified, the quality optimization ratio system controls the negative pressure screw conveyor to close, and then controls the automatic discharge valve to open. The mortar flows by force of position difference to the dedicated secondary flow meter for secondary measurement; s6-2: After the secondary flow meter records the total amount of slurry and fly ash weight, the slurry that meets the requirements of the ball milling process ratio is sent to the ball milling device; The specific steps of s8 are: The ball mill is equipped with a weighing module to weigh and measure the auxiliary materials and grinding stones according to the proportioning process requirements; The specific steps of s9 are: s9-1. After the standard metering tank is emptied, start the high-pressure flushing device to clean the metering equipment, pipes, valves, etc.; The cleaning water is discharged into the slurry tank, while preventing fly ash from settling and clogging; s9-2. After cleaning, the system remains in normal standby mode to ensure that the fly ash metering and quality optimization proportioning process for the next cycle remain in the best state.

5. The method for metering and optimizing the quality of fly ash slurry fluid according to claim 4, characterized in that: There is step s7 between s6 and s8; s7: Secondary metering data verification and dust filling operation, the specific steps are as follows: The secondary concentration data monitored in s6-1 and the secondary metering data are transmitted to the control system and checked with the ash replenishment amount in s5-2, the primary concentration data in s2-1 and s3-1, and the primary metering data; the secondary metering data should be equal to the primary metering data plus the ash replenishment amount. If there is a deviation, the control system will start the automatic ash replenishing device and send it directly into the ball mill through the secondary pipeline until the ball milling process requirements are met.

6. The method for metering and optimizing the quality of fly ash slurry fluid according to claim 5, characterized in that: The standard metering groove is a metering groove having a positioning difference height.

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