http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112156876-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03C1-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03C1-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B02C21-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03C1-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B02C21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03C1-10 |
| filingDate | 2020-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112156876-B |
| titleOfInvention | Method for improving recovery rate of nonferrous metals in household garbage incinerator slag |
| abstract | The invention relates to a method for improving the recovery rate of nonferrous metals in household garbage incineration slag, which comprises the following steps: s1, enabling the waste incineration slag to sequentially enter a crusher, a primary magnetic separation device, a sand blasting machine and a secondary magnetic separation device, separating magnetic substances from the slag, and controlling the grain size of discharged materials to be 5-10 mm; s2, opening the dryer, adjusting the temperature of the dryer to 85-100 ℃, and enabling the processed slag (S1) to enter the dryer to be dried for 1-3 hours; s3, conveying the slag processed in the step (S2) to a fluidized bed (6), adding dry ice with the total mass fraction of the slag being 0.3% -0.5%, simultaneously opening a heating device (8) in the fluidized bed, adjusting the fluidization of a gas pump (7) to be V1, and enabling the slag to be in a fluidization state for 3-5 min; s4, adjusting the gas flow rate of the fluidized bed to V2 to ensure that V2 is not less than V1, wherein light nonmetal in the slag overflows from the top of the fluidized bed, and the nonferrous metal can be obtained by collecting metal from the lower part of the fluidized bed periodically. The method provided by the invention has high recovery rate of heavy metals and can avoid the generation of wastewater in the traditional process. |
| priorityDate | 2020-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.