CN109207895B - Recovery method for zinc leakage of zinc pot to drainage trench and condensation of zinc blocks - Google Patents

Recovery method for zinc leakage of zinc pot to drainage trench and condensation of zinc blocks Download PDF

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Publication number
CN109207895B
CN109207895B CN201810894934.2A CN201810894934A CN109207895B CN 109207895 B CN109207895 B CN 109207895B CN 201810894934 A CN201810894934 A CN 201810894934A CN 109207895 B CN109207895 B CN 109207895B
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zinc
drainage trench
blocks
partition plates
gas
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CN109207895A (en
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张健
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China MCC20 Group Corp Ltd
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China MCC20 Group Corp Ltd
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003Apparatus
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00Obtaining zinc or zinc oxide
    • C22B19/20Obtaining zinc otherwise than by distilling
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00Obtaining zinc or zinc oxide
    • C22B19/30Obtaining zinc or zinc oxide from metallic residues or scraps
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/005Separation by a physical processing technique only, e.g. by mechanical breaking
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06Zinc or cadmium or alloys based thereon
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses a recovery method for condensing leaked zinc in a zinc pot into a drainage trench into zinc blocks, which comprises the steps of firstly disassembling the zinc pot, providing gas and electricity on site, and manufacturing a pair of partition plates and lifting lugs; a gas pipeline connected with gas through a gas main valve is arranged along the length direction of the drainage trench, and a plurality of burners with regulating valves are arranged on the gas pipeline at intervals; opening a gas main valve, igniting a burner and heating a zinc block in the drainage trench to a molten state by flame of the burner; inserting paired partition plates into the drainage trench at intervals, placing lifting lugs between the adjacent paired partition plates, closing the gas main valve, and cooling and condensing zinc blocks in the drainage trench into a plurality of zinc blocks; the lifting lugs and the lifting sling are connected by adopting a sling, and the lifting sling sequentially lifts a plurality of zinc blocks and partition plates at two ends of the zinc blocks out of a drainage trench to realize zinc block recovery. The method overcomes the defect of recovery of the traditional leaked zinc liquid, avoids the potential safety hazard of zinc liquid recovery construction, does not need to construct temporary safety measures, reduces the construction cost and improves the recovery operation efficiency of the zinc blocks.

Description

Recovery method for zinc leakage of zinc pot to drainage trench and condensation of zinc blocks
Technical Field
The invention relates to a recovery method for condensing leaked zinc of a zinc pot into a drainage trench into zinc blocks.
Background
The hot galvanizing is a steel surface treatment method which is most widely applied and has the optimal cost performance ratio at present, the hot galvanizing product plays immeasurable and irreplaceable roles in reducing corrosion, prolonging service life, saving energy and materials, and meanwhile, the coated steel is also a high-value-added short-line product which is supported and preferentially developed by the country. A hot galvanizing unit for automobile sheet strip steel in an iron and steel plant is main equipment of the iron and steel plant.
The key equipment of the hot galvanizing unit is that a zinc pot is easy to leak zinc in the using process, the zinc pot is usually positioned in a room, a drainage trench is arranged on the side surface of the zinc pot, the drainage trench is communicated with a water collecting pit, zinc liquid leaks into the drainage trench after the zinc pot leaks zinc and is condensed, the drainage trench is filled with the leaked zinc and forms a whole with a condensed zinc block, and the total weight of the leaked zinc of the zinc pot is about 20 tons. Heating and melting the zinc blocks condensed in the trench, and then pumping and recovering the zinc blocks by using a zinc pump; however, the recovery method has the disadvantages of extremely high construction risk, extremely many temporary safety measures, high construction cost and long construction period.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a recovery method for the zinc leaked from the zinc pot to the drainage trench to be condensed into zinc blocks, the method overcomes the defect of traditional leaked zinc liquid recovery, avoids the potential safety hazard of zinc liquid recovery construction, does not need to construct temporary safety measures, reduces the construction cost and improves the zinc block recovery operation efficiency.
In order to solve the technical problem, the recovery method of the zinc leakage of the zinc pot to the drainage trench and the zinc blocks condensed comprises the following steps:
step one, disassembling a zinc pot and providing gas and electricity on site;
secondly, manufacturing a pair of partition plates and lifting lugs;
thirdly, arranging a gas pipeline along the length direction of the drainage trench, wherein the gas pipeline is connected with gas through a gas main valve, and a plurality of burners with regulating valves are arranged on the gas pipeline at intervals;
opening a gas main valve, igniting a plurality of burners, adjusting flame of the burners by adopting an adjusting valve, and heating the zinc blocks in the drainage trench to a molten state by the flame of the burners;
inserting paired partition plates into the drainage trench at intervals, placing lifting lugs between the adjacent paired partition plates, closing the gas main valve, and cooling and condensing zinc liquid in the drainage trench into a plurality of zinc blocks separated by the paired partition plates;
and step six, connecting the lifting lugs and the hoisting hanger by using slings, and hoisting the zinc blocks and the partition plates at the two ends of the zinc blocks out of the drainage trench in sequence by using the hoisting hanger to realize zinc block recovery.
Further, the sectional shape and size of the pair of partition plates are matched with those of the drainage trench.
Furthermore, the lug includes opening rings and two grab feet, two grab feet are located respectively the open end of opening rings, two grab feet are located the trench, opening rings top surface is higher than the trench top surface.
The recovery method for the zinc block condensed from the zinc leakage of the zinc pot to the drainage trench adopts the technical scheme, namely the method firstly dismantles the zinc pot and provides gas and electricity on site to manufacture the paired partition plates and the lifting lugs; a gas pipeline connected with gas through a gas main valve is arranged along the length direction of the drainage trench, and a plurality of burners with regulating valves are arranged on the gas pipeline at intervals; opening a gas main valve, igniting a burner and heating a zinc block in the drainage trench to a molten state by flame of the burner; inserting paired partition plates into the drainage trench at intervals, placing lifting lugs between the adjacent paired partition plates, closing the gas main valve, and cooling and condensing zinc blocks in the drainage trench into a plurality of zinc blocks; the lifting lugs and the lifting sling are connected by adopting a sling, and the lifting sling sequentially lifts a plurality of zinc blocks and partition plates at two ends of the zinc blocks out of a drainage trench to realize zinc block recovery. The method overcomes the defect of recovery of the traditional leaked zinc liquid, avoids the potential safety hazard of zinc liquid recovery construction, does not need to construct temporary safety measures, reduces the construction cost and improves the recovery operation efficiency of the zinc blocks.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a schematic view of a recovery method of zinc blocks condensed from a zinc pot leaked to a drainage ditch according to the present invention;
FIG. 2 is a schematic view of a pair of baffles in the present process;
fig. 3 is a schematic view of the structure of the lifting lug in the method.
Detailed Description
Embodiment example as shown in fig. 1, fig. and fig. 3, the recovery method of the invention for the leaked zinc in the zinc pot to leak to the drainage ditch and condense into zinc blocks comprises the following steps:
step one, disassembling a zinc pot 1 and providing gas and electricity on site;
step two, manufacturing a pair of partition plates 2 and lifting lugs 3;
thirdly, arranging a gas pipeline 5 along the length direction of the drainage trench 4, wherein the gas pipeline 5 is connected with gas through a gas main valve 6, and a plurality of burners 7 with regulating valves are arranged on the gas pipeline 5 at intervals;
opening a gas main valve 6, igniting a plurality of burners 7, adjusting burner flames by adopting an adjusting valve, and heating the zinc blocks in the drainage trench 4 to a molten state by the burner flames;
step five, inserting paired partition plates 2 into the drainage trench 4 at intervals, placing lifting lugs 3 between the adjacent paired partition plates 2, closing a gas main valve 6, and cooling and condensing zinc liquid in the drainage trench 2 into a plurality of zinc blocks 8 separated by the paired partition plates 2;
and step six, connecting the lifting lugs 3 with a hoisting hanger by using slings, and hoisting the zinc blocks 8 and the partition plates at the two ends of the zinc blocks out of the drainage trench 2 by using the hoisting hanger in sequence to realize zinc block recovery.
Preferably, the sectional shape and size of the pair of partition plates 2 are matched with those of the drain gutter 4.
Preferably, the lifting lug 3 comprises an open hanging ring 31 and two grabbing feet 32, the two grabbing feet 32 are respectively arranged at the open end of the open hanging ring 31, the two grabbing feet 32 are positioned in the drainage trench 4, and the top surface of the open hanging ring 31 is higher than the top surface of the drainage trench 4. The connection reliability of the lifting lug and the zinc block is improved through the grab foot, so that the lifting lug and the zinc block form a whole body, and the safety of the zinc block which can be lifted out of a drainage trench and the safety of the zinc block in the lifting process are ensured.
The method comprises the steps of arranging gas pipelines along the length direction of the drainage trench, arranging burners at intervals on the gas pipelines, heating the zinc blocks of the drainage trench to be molten by burner flames after the burners are ignited, inserting paired partition plates into molten zinc, avoiding the adhesion between a single partition plate and adjacent zinc blocks by the paired partition plates, ensuring that the blocked zinc blocks can be lifted out, sinking lifting lugs into the zinc blocks, enabling the lifting lugs to form an integral body with the condensed zinc blocks, namely, adopting a sling and a hoisting hanger to sequentially lift the blocked zinc blocks out, and realizing zinc block recovery.
The method does not need to set temporary safety measures for heating and melting the zinc block and pumping the zinc pump to recover, avoids the potential safety hazard of site recovery of the zinc liquid, only needs to carry out cutting operation, is convenient to operate, improves the construction efficiency, and reduces the recovery cost of the zinc liquid.

Claims (3)

1. A recovery method for zinc leaked from a zinc pot to a drainage trench to be condensed into zinc blocks is characterized by comprising the following steps:
step one, disassembling a zinc pot and providing gas and electricity on site;
secondly, manufacturing a pair of partition plates and lifting lugs;
thirdly, arranging a gas pipeline along the length direction of the drainage trench, wherein the gas pipeline is connected with gas through a gas main valve, and a plurality of burners with regulating valves are arranged on the gas pipeline at intervals;
opening a gas main valve, igniting a plurality of burners, adjusting flame of the burners by adopting an adjusting valve, and heating the zinc blocks in the drainage trench to a molten state by the flame of the burners;
inserting paired partition plates into the drainage trench at intervals, placing lifting lugs between the adjacent paired partition plates, closing the gas main valve, and cooling and condensing zinc liquid in the drainage trench into a plurality of zinc blocks separated by the paired partition plates;
and step six, connecting the lifting lugs and the hoisting hanger by using slings, and hoisting the zinc blocks and the partition plates at the two ends of the zinc blocks out of the drainage trench in sequence by using the hoisting hanger to realize zinc block recovery.
2. The recovery method of zinc lumps condensed from the leaked zinc in the zinc pot to the drainage ditch according to claim 1, characterized in that: the sectional shape and size of the pair of partition plates are matched with those of the drainage trench.
3. The recovery method of zinc blocks condensed from the zinc leakage of the zinc pot to the drainage trench according to claim 1 or 2, characterized in that: the lifting lug comprises an opening lifting ring and two grabbing feet, the two grabbing feet are respectively arranged at the opening end of the opening lifting ring, the two grabbing feet are positioned in the drainage trench, and the top surface of the opening lifting ring is higher than the top surface of the drainage trench.
CN201810894934.2A 2018-08-08 2018-08-08 Recovery method for zinc leakage of zinc pot to drainage trench and condensation of zinc blocks Active CN109207895B (en)

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CN201810894934.2A CN109207895B (en) 2018-08-08 2018-08-08 Recovery method for zinc leakage of zinc pot to drainage trench and condensation of zinc blocks

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CN109207895B true CN109207895B (en) 2020-11-03

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5352897A (en) * 1976-10-25 1978-05-13 Power Reactor & Nuclear Fuel Dev Corp Leaked sodium recovering device
CN1201413A (en) * 1995-09-07 1998-12-09 明特克公司 Production of metal lumps
CN101497124A (en) * 2009-01-21 2009-08-05 交城义望铁合金有限责任公司 Solidifying, granulating and moulding technique of manganese metal or manganese alloy
CN107884832A (en) * 2016-09-29 2018-04-06 宝钢新日铁汽车板有限公司 A kind of zinc pot leaks zinc detector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5352897A (en) * 1976-10-25 1978-05-13 Power Reactor & Nuclear Fuel Dev Corp Leaked sodium recovering device
CN1201413A (en) * 1995-09-07 1998-12-09 明特克公司 Production of metal lumps
CN101497124A (en) * 2009-01-21 2009-08-05 交城义望铁合金有限责任公司 Solidifying, granulating and moulding technique of manganese metal or manganese alloy
CN107884832A (en) * 2016-09-29 2018-04-06 宝钢新日铁汽车板有限公司 A kind of zinc pot leaks zinc detector

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