CN204685645U - The treating apparatus of waste cathode carbon block - Google Patents

The treating apparatus of waste cathode carbon block Download PDF

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Publication number
CN204685645U
CN204685645U CN201520333430.5U CN201520333430U CN204685645U CN 204685645 U CN204685645 U CN 204685645U CN 201520333430 U CN201520333430 U CN 201520333430U CN 204685645 U CN204685645 U CN 204685645U
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CN
China
Prior art keywords
carbon block
cathode carbon
discharging opening
treating
waste cathode
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Expired - Fee Related
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CN201520333430.5U
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Chinese (zh)
Inventor
鲁爽
吕明来
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Shenyang Yinhai Machinery Equipment Manufacturing Co Ltd
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Shenyang Yinhai Machinery Equipment Manufacturing Co Ltd
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Priority to CN201520333430.5U priority Critical patent/CN204685645U/en
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Publication of CN204685645U publication Critical patent/CN204685645U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind for the treatment of apparatus of aluminium electrolytic tank, particularly relate to a kind for the treatment of apparatus of waste cathode carbon block.The treating apparatus of waste cathode carbon block, the discharge end of disintegrating machine is connected with the feeding end of dry-type magnetic extractor, the discharge end of dry-type magnetic extractor is connected with the solid material inlet of wet type milling equipment, the discharging opening of wet type milling equipment is connected with the feeding mouth of blending tank, the discharging opening of blending tank is connected with the feeding mouth of flotation device, the discharging opening of flotation device is connected with the feeding mouth of alkali immersion trough, the discharging opening of alkali immersion trough is connected with the feeding mouth of filter, the liquid outlet of filter is connected with bosh, the liquid outlet of bosh is connected with the liquid inlet of wet type milling equipment and alkali immersion trough respectively.The treating apparatus processing cost of the utility model waste cathode carbon block is low, treatment effeciency is high, and material after treatment can utilize again, and utilization of materials used is high, reaches the object of energy-saving and emission-reduction.

Description

The treating apparatus of waste cathode carbon block
Technical field
The utility model relates to a kind for the treatment of apparatus of aluminium electrolytic tank, particularly relates to a kind for the treatment of apparatus of waste cathode carbon block, belongs to technical field of aluminum electrolysis.
Background technology
In Aluminum Electrolysis Production process except giving off a large amount of greenhouse gases, also give off environmentally harmful solid waste--waste lining, carries out harmless treatment to waste lining solid waste and fully utilizes the technical problem having become aluminum electrolysis industry common concern.Be maximum with waste cathode carbon number of blocks accounting in electrolytic cell waste lining, account for 37% ~ 40% of waste lining.Waste cathode carbon block belongs to hazardous waste, its refuse classification HW48, is transporting, stores, processes or is storing up in process, if mismanagement, its harmful toxic matter will shift, and enter air, infiltrate in soil and groundwater, can ecological environment be destroyed, have a strong impact on human health and animal and plant growth.The more difficult strick precaution of precipitation of gas cyaniding thing (HCN), moment harm humans life security.
Processing method traditional at present based on pyrogenic process harmless treatment and flotation hydrometallurgic recovery, pyrogenic process harmless treatment, floatation and wet method comprehensive treatment mode, this several method because processing cost is higher, economic benefit is not obvious, so be all in the little experimental stage.It is landfill method more widely that current China uses, although this method processing cost is lower, produces long-range impact by soil environment and groundwater environment, and this has become the technical problem that those skilled in the art are badly in need of solving.Pyrogenic process harmless treatment, generate by fluoride under high temperature and calcium oxide reaction the harmless treatment that the calcirm-fluoride of environmental sound come waste cathode carbon block, but this kind of processing method can not reclaim the composition having economic worth in waste cathode carbon block effectively, and processing cost is high, the mixture economic worth produced after process is low.Domestic each R&D institution and producer more favor in flotation and wet method integrated treatment, mainly contain floatation and flotation-acid-hatching of young eggs, and wherein in method for floating, flotation waste water is fluorine-containing needs post-processed; Flotation-acidleach method needs to add a large amount of acid solution, and the hydrofluoric acid of generation and cyanic acid existence produce the problems such as harm to equipment and personnel, and processing cost is also higher.
Summary of the invention
The utility model is in order to solve the problems of the technologies described above, and providing a kind for the treatment of apparatus of waste cathode carbon block, it has, and processing cost is low, treatment effeciency is high, does not produce secondary pollution, material economic worth is after treatment high, can again be utilized, and reaches the object of energy-saving and emission-reduction.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The treating apparatus of waste cathode carbon block, its structure is as follows: the discharge end of disintegrating machine is connected with the feeding end of dry-type magnetic extractor, the discharge end of dry-type magnetic extractor is connected with the solid material inlet of wet type milling equipment, the discharging opening of wet type milling equipment is connected with the feeding mouth of blending tank, the discharging opening of blending tank is connected with the feeding mouth of flotation device, the discharging opening of flotation device is connected with the feeding mouth of alkali immersion trough, the discharging opening of alkali immersion trough is connected with the feeding mouth of filter, the liquid outlet of filter is connected with bosh, the liquid outlet of bosh is connected with the liquid inlet of wet type milling equipment and alkali immersion trough respectively.
Above-mentioned dry-type magnetic extractor is dry type high-intensity magnetic field disk-type magnetic separator.
Above-mentioned wet type milling equipment is wet ball mill or wet rod mill.
Above-mentioned disintegrating machine is gyratory crusher or jaw crusher or impact breaker.
Also sedimentation basin is provided with between above-mentioned filter and bosh.
Owing to adopting technique scheme, tool of the present invention is had the following advantages and effect:
The treating apparatus long service life of the utility model waste cathode carbon block, to staff's fanout free region.Its processing cost is low, treatment effeciency is high, does not produce secondary pollution, and material economic worth is after treatment high, can again be utilized, energy-conserving and environment-protective, is beneficial to popularization.Filtrate after liquid material after alkali leaching is filtered, then to be transported in wet type milling equipment and alkali immersion trough for abrasive dust and alkali leaching after treatment, improve the utilization ratio of material, reduce processing cost, greatly reduce the discharge capacity of pollutant.
Accompanying drawing explanation
Fig. 1 is the structural representation of the treating apparatus of the utility model waste cathode carbon block.
In figure, 1, disintegrating machine, 2, dry-type magnetic extractor, 3, wet type milling equipment, 4, blending tank, 5, flotation device, 6, alkali immersion trough, 7, filter, 8, sedimentation basin, 9, bosh.
Detailed description of the invention
Carry out next step below in conjunction with embodiment to the utility model to describe.Following examples are only specific embodiment of the utility model, in order to make the purpose of this utility model, technical scheme and advantage very clear, below in conjunction with drawings and Examples, are further elaborated to the utility model.
embodiment 1
As shown in Figure 1, the treating apparatus of the utility model waste cathode carbon block, its structure is as follows: the discharge end of disintegrating machine 1 is connected with the feeding end of dry-type magnetic extractor 2, the discharge end of dry-type magnetic extractor 2 is connected with the solid material inlet of wet type milling equipment 3, the discharging opening of wet type milling equipment 3 is connected with the feeding mouth of blending tank 4, the discharging opening of blending tank 4 is connected with the feeding mouth of flotation device 5, the discharging opening of flotation device 5 is connected with the feeding mouth of alkali immersion trough 6, the discharging opening of alkali immersion trough 6 is connected with the feeding mouth of filter 7, the liquid outlet of filter 7 is connected with sedimentation basin 8, the liquid outlet of sedimentation basin 8 is connected with bosh 9, the liquid outlet of bosh 9 is connected with the liquid inlet of wet type milling equipment 3 and alkali immersion trough 6 respectively.Dry-type magnetic extractor 2 is dry type high-intensity magnetic field disk-type magnetic separator; Wet type milling equipment 3 is wet ball mill; Disintegrating machine 1 is hydro cone-crusher.
embodiment 2
The treating apparatus of the utility model waste cathode carbon block, its structure is as follows: the discharge end of disintegrating machine 1 is connected with the feeding end of dry-type magnetic extractor 2, the discharge end of dry-type magnetic extractor 2 is connected with the solid material inlet of wet type milling equipment 3, the discharging opening of wet type milling equipment 3 is connected with the feeding mouth of blending tank 4, the discharging opening of blending tank 4 is connected with the feeding mouth of flotation device 5, the discharging opening of flotation device 5 is connected with the feeding mouth of alkali immersion trough 6, the discharging opening of alkali immersion trough 6 is connected with the feeding mouth of filter 7, the liquid outlet of filter 7 is connected with sedimentation basin 8, the liquid outlet of sedimentation basin 8 is connected with bosh 9, the liquid outlet of bosh 9 is connected with the liquid inlet of wet type milling equipment 3 and alkali immersion trough 6 respectively.Dry-type magnetic extractor 2 is flat carousel type high intensity magnetic separator; Wet type milling equipment 3 is wet rod mill; Disintegrating machine 1 is jaw crusher or impact breaker.
Operation principle of the present utility model is as follows: operation principle of the present utility model is as follows: be a kind of novel alkali leaching-flotation unit.First aluminium electroloysis waste lining waste cathode carbon block is joined in disintegrating machine and carry out coarse crushing, be crushed to below 5mm, material after coarse crushing enters into wet type milling equipment after dry-type magnetic extractor magnetic separation, in wet type milling equipment, add NaOH carry out abrasive dust, waste cathode carbon block slip through abrasive dust process enters into blending tank, add alkali lye in blending tank and carry out mix and blend, mixed slurry enters in flotation device and carries out flotation, obtain flotation and produce sheet carbon dust, electrolyte solution after flotation enters in alkali immersion trough, add NaOH solution and carry out alkali leaching, Ca(OH is added) after alkali leaching 2after solution, material enters in filter and filters, and the filtrate after filtration is transported in wet type milling equipment and alkali immersion trough after treatment soaks for abrasive dust and alkali, improves the utilization ratio of material, reduces processing cost, greatly reduce the discharge capacity of pollutant.Sheet carbon dust is produced in flotation, phosphorus content 93-94%.Solution after alkali leaching adds Ca(OH) 2after solution, precipitation is carried out to the sediment produced and collects, produce the calcium fluoride powder that thing is purity 96% after testing.As calculated, the rate of recovery 95-96% of carbon, the rate of recovery 84-86% of fluorine.

Claims (5)

1. the treating apparatus of waste cathode carbon block, it is characterized in that structure is as follows: the discharge end of disintegrating machine is connected with the feeding end of dry-type magnetic extractor, the discharge end of dry-type magnetic extractor is connected with the solid material inlet of wet type milling equipment, the discharging opening of wet type milling equipment is connected with the feeding mouth of blending tank, the discharging opening of blending tank is connected with the feeding mouth of flotation device, the discharging opening of flotation device is connected with the feeding mouth of alkali immersion trough, the discharging opening of alkali immersion trough is connected with the feeding mouth of filter, the liquid outlet of filter is connected with bosh, the liquid outlet of bosh is connected with the liquid inlet of wet type milling equipment and alkali immersion trough respectively.
2. the treating apparatus of waste cathode carbon block according to claim 1, is characterized in that described dry-type magnetic extractor is dry type high-intensity magnetic field disk-type magnetic separator.
3. the treating apparatus of waste cathode carbon block according to claim 1, is characterized in that described wet type milling equipment is wet ball mill or wet rod mill.
4. the treating apparatus of waste cathode carbon block according to claim 1, is characterized in that described disintegrating machine is gyratory crusher or jaw crusher or impact breaker.
5. the treating apparatus of waste cathode carbon block according to claim 1, is characterized in that also being provided with sedimentation basin between described filter and bosh.
CN201520333430.5U 2015-05-22 2015-05-22 The treating apparatus of waste cathode carbon block Expired - Fee Related CN204685645U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520333430.5U CN204685645U (en) 2015-05-22 2015-05-22 The treating apparatus of waste cathode carbon block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520333430.5U CN204685645U (en) 2015-05-22 2015-05-22 The treating apparatus of waste cathode carbon block

Publications (1)

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CN204685645U true CN204685645U (en) 2015-10-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105821445A (en) * 2016-05-27 2016-08-03 中南大学 Method for recycling carbon and electrolytes from waste cathode carbon block of aluminum electrolytic cell
CN105926007A (en) * 2016-05-27 2016-09-07 中南大学 Water leaching-flotation method for recovering carbons and electrolytes from waste cathode carbon blocks in aluminum electrolysis cell

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105821445A (en) * 2016-05-27 2016-08-03 中南大学 Method for recycling carbon and electrolytes from waste cathode carbon block of aluminum electrolytic cell
CN105926007A (en) * 2016-05-27 2016-09-07 中南大学 Water leaching-flotation method for recovering carbons and electrolytes from waste cathode carbon blocks in aluminum electrolysis cell

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151007

Termination date: 20200522

CF01 Termination of patent right due to non-payment of annual fee