Fly ash high-temperature melting treatment method and system, control device and storage medium

A technology of high-temperature melting and processing method, which is applied in the field of resource utilization of solid waste, which can solve the problems of long maintenance time, high requirements for melting temperature, and high energy consumption, and achieve the effects of improving efficiency, reducing energy consumption, and reducing energy consumption

Active Publication Date: 2021-06-11
浙江和惠生态环境科技有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to improve the problems of low efficiency, high requirements for melting temperature, and long maintenance time of the above-mentioned high-temperature melting process, resulting in high energy consumption, this application provides a fly ash high-temperature melting treatment method, system, control device and storage medium

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  • Fly ash high-temperature melting treatment method and system, control device and storage medium
  • Fly ash high-temperature melting treatment method and system, control device and storage medium

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Embodiment Construction

[0086] The application will be described in further detail below in conjunction with the accompanying drawings.

[0087] The embodiment of the present application provides a high-temperature melting treatment method for fly ash.

[0088] Such as figure 1 shown, including:

[0089] S1: Fly ash water elution chlorine treatment, specifically including:

[0090] S11: Analyze the chlorine content in the fly ash through multi-point and multi-frequency sampling analysis, that is, establish a multi-tank simultaneous ash discharge operation mechanism, and analyze the chlorine content of the fly ash to be processed every 4 hours;

[0091] S12: According to the analysis result in S11, determine the flow rate of washing water, and the water-cement ratio is controlled at 2-4:1;

[0092] S13: The fly ash is washed by a multi-stage countercurrent washing process, and the ash water washed in the next stage is separated from solid and liquid by dehydration and pressure filtration. Fresh wa...

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Abstract

The invention discloses a fly ash high-temperature melting treatment method and system, a control device and a storage medium. The fly ash high-temperature melting treatment method comprises the following steps of S1, carrying out fly ash washing dechlorination treatment; S2, based on the material composition of the fly ash and compatible raw materials and the standard composition of a target product, carrying out compatibility on the fly ash and the compatible raw materials to form a first intermediate product; S3, pressing the first intermediate product into a regular or irregular three-dimensional blocky second intermediate product; S4, standing the second intermediate product at 0-40 DEG C for not less than 24 hours to form a third product after formation; and S5, based on the formation time of the second intermediate product, sending the third product into a melting furnace in sequence, preferentially sending the third product with long formation time into the melting furnace, and carrying out high-temperature melting for 30-60 minutes at 1250-1350 DEG C under the air condition to generate a glass melt. The fly ash can be completely melted and solidified at a high temperature while the melting temperature is reduced, the efficiency is improved, and the energy consumption is reduced.

Description

technical field [0001] The present application relates to the technical field of resource utilization of solid waste, in particular to a fly ash high-temperature melting treatment method, system, control device and storage medium. Background technique [0002] Fly ash refers to the tiny ash particles discharged during the combustion process of fuel (such as coal, domestic garbage, hazardous waste, etc.), and its particle size is generally 1-100 μm, also known as fly ash or soot. Accounting for about 20% of the total amount of waste incineration ash, it is the material collected by the flue gas dust collector after waste incineration. [0003] Fly ash cannot be directly landfilled because it contains a large amount of soluble heavy metals and dioxins, and it is a hazardous waste. Dioxins, heavy metals and a large amount of soluble salts in fly ash can easily seep into soil and groundwater, and then enter the food chain, posing a huge threat to the environment and human healt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
CPCB09B3/00B09B5/00B09B3/29B09B2101/30B09B3/40Y02W30/82
Inventor 耿海榕
Owner 浙江和惠生态环境科技有限公司
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