A kind of processing method of industrial waste salt

A kind of processing method of industrial waste salt

  • CN 106,801,874 B
  • Filed: 01/18/2017
  • Issued: 05/07/2019
  • Est. Priority Date: 01/18/2017
  • Status: Active Grant
First Claim
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1. a kind of processing method of industrial waste salt, specific technical solution are as follows:

  • industrial waste salt being crushed to partial size and is less than0.5mm is proportionally mixed with microwave absorption media particle, is placed in microwave heating equipment and is carried out at microwave under air atmosphereReason, the ingredient of used microwave absorption media particle is SiC, SnO2, graphite, Fe3O4, Co2O3, Co3O4, in CuO, NiOAny one or any several mixture, the partial size of used microwave absorption media particle is in 0.05mm ~ 5mm, microwaveThe temperature of the mixture of control abraum salt and microwave absorption media particle is at 800 DEG C hereinafter, to organic in abraum salt in treatment processObject and degradable inorganic matter carry out microwave thermal decomposition, and abraum salt particle passes through the mixing plant in microwave heating appts in decomposable processIt is stirred continuously mixing, avoids locally occurring to overheat and abraum salt is caused to melt, microwave treatment time is 10min ~ 5hr, microwave treatmentHeat-accumulation combustion equipment or heat-storage catalytic combustion apparatus or direct-fired are extracted through air-introduced machine and be sent into the gas generated in the process outGas processing device simultaneously degrades organic compound combustion therein, by heat-accumulation combustion equipment or heat-storage catalytic combustion apparatus orDirect-fired gas processing device treated gas carries out desulphurization denitration depickling processing according to its ingredient, what removal may containSO2, qualified discharge after NOx, HCl, HF, the abraum salt after microwave treatment eluriates through water, and the sodium chloride in abraum salt dissolves discharge, mixesThen pass through filtering or gravitational settling or centrifuge separation or Magnetic Isolation together in the microwave absorption media particle in abraum saltRecycling.

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