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Quenching tower salt ash softening agent in rotary kiln incineration process and application method
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An application method, the technology of quenching tower, applied in chemical instruments and methods, descaling and water softening, water/sludge/sewage treatment, etc., can solve the problems of limited operating space, low efficiency, poor lighting, etc.
Active Publication Date: 2021-08-13
JIANGSU JINGKE TOTAL SOLUTIONS LTD
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Problems solved by technology
However, due to poor internal light and limited working space for parking cleaning, manual cleaning is difficult and inefficient. The operating space is limited and there are potential safety hazards. Therefore, the processing cycle is long and affects normal operation.
In order to avoid the inconvenience caused by manual cleaning, the present invention proposes an effective solution to the problem of how to solve the formation of scale substances formed by high-temperature salt ash in the quenching tower
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Embodiment 1
[0026] In the comprehensive hazardous waste disposalplant, when the waste brine is reused in the incineration quench tower, because the waste brine contains a large amount of soluble inorganic salts, a large amount of agglomerated ash will be produced with the evaporation of water under high temperature conditions, resulting in hazardous waste Disposal enterprises often need to shut down furnaces and production for manual cleaning, which affects the production efficiency and hazardous waste treatment capacity of enterprises.
[0027] experiment method:
[0028] In order to simulate the temperature, scale sample and brine of the on-site quench tower, the test method is designed:
[0029] A. Scale sample: Take the scale sample from the lower part of the on-site quench tower, and do scale sample analysis (see the data in Table 1), grind the scale sample into fine powder, and use it for preparing the test solution. Add 5-10% to the test sample.
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Abstract
The invention relates to a quenchingtower salt ash softening agent in a rotary kilnincineration process and an application method of the quenchingtower salt ash softening agent in the rotary kilnincineration process. The agent comprises the following raw materials in percentage by weight: 10-50% of an amino acidpolymer, 1-50% of organic carboxylic acid or salt thereof, 1-50% of organic phosphoric acid or salt thereof, 1-10% of an anti-caking substance, 1-5% of a polyhydroxy compound containing a dienol structure and 1-10% of an acid neutralizer, the raw materials are mixed according to the proportion and then water is added to prepare a solution with the mass concentration of 30%-40% to obtain the quench tower salt ash softening agent, and the pH value of the quench tower salt ash softening agent is larger than or equal to 7. The quenching tower salt ash softening agent can prevent the problem that high-temperature salt ash at the lower part of the wall of the quench tower is scaled and salt-deposited due to the fact that high-salinitywastewater generated after incineration of hazardous wastes is sprayed back to the quench tower and is easy to block a pipeline, and is convenient and simple to use and good in effect.
Description
technical field [0001] The invention relates to the technical field of water treatment, in particular to a quenching tower salt ash softener in a rotary kiln incineration process and an application method. Background technique [0002] There are many types of solid waste and hazardous waste, and there are many classification methods for solid waste. According to its composition, it can be divided into organic waste and inorganic waste; according to its hazard status, it can be divided into hazardous waste (cyanidetailings, mercury-containing waste, etc., see Hazardous Waste Inventory), hazardous waste (referring to corrosion, corruption, highly toxic, infectious, spontaneous combustion, sharp thorns, radioactive waste, etc.) and general waste; according to its form, it can be divided into solid waste (block, granular, powder), semi-solid waste (waste engine oil, etc.) and unconventional solid waste (solid waste containing gaseous or solid substances, such as waste oil drums...
Claims
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Application Information
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