Method for monitoring and treating chlorine in cement clinker production system for co-treating waste incineration fly ash and cement clinker production system thereof

A technology for waste incineration fly ash and cement clinker, applied in cement production, separation methods, chemical instruments and methods, etc., can solve the problems of low disposal efficiency, occupying large space, and high disposal costs, and achieves good and stable operation. Quality and yield, the effect of improving disposal efficiency

Pending Publication Date: 2022-04-19
北京优巨源环保工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows us to control how much harmful chemicals like chlorides enter our facility's exhaust systems from burning coal during combustion processes. By doing this we reduce environmental concerns associated with pollution caused by these substances. Additionally, when treating the released materials through various methods such as recirculating them away within certain limits, they may become less valuable due to their presence in the treated material itself. Overall, this innovative technical solution helps optimize the management of industrial solid-state waste streams while minimizing negative impacts on the health and safety of workers involved in producing cements.

Problems solved by technology

This technical problem addressed in this patents relates to improving the handling and reducing environmental pollution caused by halogen compounds generated during manufacturing processes involving coal or wood residues. Exposure of excessive amounts of volatile organic gases leads to health concerns even without proper monitoring measures. Current methods involve expensive treatments like acid neutralizing agents, thermal oxidizers, activators, and sulfur recovery devices. These techniques require significant resources and may result in reduced disposability rates overtime. There is an urgent demand for improved ways to manage and use recycled exhaust burners containing no more environmentally friendly components while minimizing their detractiveness towards human bodies.

Method used

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  • Method for monitoring and treating chlorine in cement clinker production system for co-treating waste incineration fly ash and cement clinker production system thereof
  • Method for monitoring and treating chlorine in cement clinker production system for co-treating waste incineration fly ash and cement clinker production system thereof
  • Method for monitoring and treating chlorine in cement clinker production system for co-treating waste incineration fly ash and cement clinker production system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Example 1: Monitoring and disposal method of chlorine in cement clinker production system for co-processing waste incineration fly ash

[0063] Such as figure 1 As shown, the cement clinker production system based on the method provided in this embodiment may include: a cement kiln system, an element detection device, a bypass ventilation device 108 and a fly ash conveying device 114, and may also include a solid waste and hazardous waste disposal device 115 .

[0064] The cement kiln system can be an existing dry process cement clinker production system, which includes a multi-stage preheater (this embodiment is a C1-C5 five-stage preheater), a calciner 102, a smoke chamber 103 and a rotary kiln 104, etc. , the raw materials used for cement clinker production (i.e. raw meal 101) first enter the C1 preheater, then pass through the C3 preheater, C2 preheater, C4 preheater, then enter the calciner 102, and then enter the C5 preheater Heater, and then enter the smoke chambe

Embodiment 2

[0082] Example 2: Cement clinker production system for co-processing waste incineration fly ash

[0083] Such as figure 1 As shown, it shows a schematic structural diagram of the cement clinker production system for co-processing waste incineration fly ash provided by this embodiment. On the basis of Embodiment 1, the system also includes a processing device 111 for bypassing fly ash, so as to The bypass ash 110 with high chlorine content separated by the bypass blowing device 108 is washed with water to obtain a treatment product 112 with high economic value, such as potassium chloride. The remaining residues after washing treatment can be sent to solid waste and hazardous waste disposal equipment 115 as solid waste and hazardous waste disposal for premixing treatment with waste incineration fly ash, and then enter the decomposition furnace 102 of the cement kiln system, or the Part of the residue is collected for other uses. The disposal depth of waste incineration fly ash an

Embodiment 3

[0088] Embodiment 3: Utilize the processing device to process the method for blown ash in the bypass

[0089] In this embodiment, the processing device 111 in the cement clinker production system provided in Example 2 is used to wash the bypass blown ash separated by the bypass blowing device 108, combined with figure 2 with image 3 As shown, it mainly includes the following steps:

[0090] T1: Open the bypass ash conveying device 2, and send an appropriate amount of bypass ash to the first water washing container 3;

[0091] T2: Open the secondary water pumping valve 16, open the secondary water pump 17, and the second upper layer solution through solid-liquid separation in the second washing container 12 (i.e. figure 2 with image 3 The second solution in the water) is sent to the first water washing container 3 by the secondary water pump 17; if the second solution is insufficient, replenish the condensed water from the condensed water container 10, if the condensed wate

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Abstract

The invention discloses a method for monitoring and treating chlorine in a cement clinker production system for co-treating waste incineration fly ash and the cement clinker production system, and belongs to the technical field of environmental protection. The chlorine monitoring and disposal method is based on a cement clinker production system, and comprises the following steps: respectively detecting the chlorine ion content of hot raw materials and the chlorine ion content of cement clinker in a cement kiln system; by adjusting and controlling the technological parameters of the cement kiln system and/or the air discharge amount of the bypass air discharge device, the chloride ion circulation ratio in the cement kiln system is accurately controlled to be maintained within the range of 50-500, it can be guaranteed that the operation state of the cement kiln system is good and stable, and the influence of chlorine elements on the yield and quality of cement clinker is avoided; and a potassium chloride product with high economic value can be obtained.

Description

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Claims

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Application Information

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Owner 北京优巨源环保工程技术有限公司
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