CN208218927U - The recycling separation system of heavy metal in a kind of solid waste - Google Patents

The recycling separation system of heavy metal in a kind of solid waste Download PDF

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Publication number
CN208218927U
CN208218927U CN201820777711.3U CN201820777711U CN208218927U CN 208218927 U CN208218927 U CN 208218927U CN 201820777711 U CN201820777711 U CN 201820777711U CN 208218927 U CN208218927 U CN 208218927U
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China
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pipeline
extraction
separation system
level
extraction tower
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唐进峰
吴婉滢
苏敏华
张鸿郭
韦乐章
陈迪云
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Guangzhou University
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Guangzhou University
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Extraction Or Liquid Replacement (AREA)

Abstract

The utility model provides a kind of recycling separation system of heavy metal in solid waste, including sequentially connected leaching device, equipment for separating liquid from solid and extraction equipment, the extraction equipment includes that multiple groups pass through the concatenated single-stage extraction tower of third pipeline, and single-stage extraction tower described in each group, which passes through the 4th pipeline and the 5th piping connection, stripping column.Separation system is recycled for recycling the heavy metals such as zinc, iron, cadmium, lead, copper in separation solid waste, it is used cooperatively by multitple extraction tower and the ingenious of stripping column, it has been separately separated out zinc, iron, copper, and mixed cadmium and lead, the utility model simple operating conditions, the exacting terms such as high temperature, high pressure, supercritical fluid are not needed, it is low in cost.

Description

The recycling separation system of heavy metal in a kind of solid waste
Technical field
The utility model relates to resource and environment fileds, and in particular to the recycling separation system of heavy metal in solid waste.
Background technique
With the development of industrialization, industrial solid castoff increases, and causes the pollution of environment, and contains in solid waste Some metals also result in the waste of resource.
Publication No. CN1485448, it is entitled using electric arc furnaces by the steel-making side of powdery trade waste recycling and reusing Powdery industrial castoff fusing is then changed furnace conditions using electric arc furnaces by the utility model patent of method makes liquid steel water oxygen Change reduction discharging, the method processing environment requires harshness, and processing cost is higher, and gained recycling product is various metals hybridization Close object.
Publication No. CN107312942A, the invention of the entitled method of extraction and separation vanadium and chromium from vanadium chromium slag pickle liquor Patent provides the method for a kind of extraction and separation vanadium and chromium from vanadium chromium slag pickle liquor.Publication No. CN106947864A is provided A kind of system and its processing method recycling heavy metal from discarded SCR catalyst, the system comprises at elution system, waste water Reason system and useless solid processing system, wherein the liquid-phase outlet of elution system is connected with waste water treatment system, the solid phase of elution system Outlet is connected with useless solid processing system.Discarded SCR catalyst removes surface dust accumulation through inventing the elution system, through useless solid processing System recycles high purity vanadic anhydride and sodium platinate, realizes that vanadium, tungsten, platinum efficiently separate.Its technique waste water and elution waste water are through useless Magnetic nanometer adsorbent enrichment in water treatment system greatly improves poisonous and harmful metal recovery recycling value in waste water, can Recycle the metals such as arsenic, mercury, chromium, thallium in sewage.
But metal species contained in solid waste are various, and the difference of metalline is also resulted in reclaimer It is required that difference.
Summary of the invention
The purpose of this utility model is that overcome the defect of the above-mentioned prior art, a huge sum of money in a kind of solid waste is provided The recycling separation system of category.
To achieve the above object, technical solution adopted in the utility model:
The recycling separation system of heavy metal in a kind of solid waste, which is characterized in that filled including sequentially connected extraction It sets, equipment for separating liquid from solid and extraction equipment, the extraction equipment includes multiple groups by the concatenated single-stage extraction tower of third pipeline, respectively The group single-stage extraction tower, which passes through the 4th pipeline and the 5th piping connection, stripping column；It is anti-by single-stage extraction tower and peer The 4th pipeline connected between extraction tower and the 5th pipeline, raffinate extracted can enter back extraction at the same level in extraction tower Tower, the raffinate after back extraction in stripping column can enter extraction tower at the same level, realize in extraction tower at the same level and stripping column Between cycling extraction and back extraction, be conducive to isolating and purifying for object.
Further, the extraction equipment includes three groups of single-stage extraction towers.
Further, the equipment for separating liquid from solid is filter device, gravity settling device, one in centrifugal sedimentation device Kind.
Further, the leaching device is made of container and blender, and blender connects motor, and motor passes through electronics control Device control processed.
Further, the leaching device top connects charging line, for adding acid extract.
Further, the leaching device top connects feeding device, and feeding device is loading hopper.
Further, loading hopper is vibration-type loading hopper.
Further, the leaching device and equipment for separating liquid from solid pass through the first piping connection, the equipment for separating liquid from solid Pass through the second piping connection with extraction equipment.
Further, first pipeline, the second pipeline, third pipeline, the 4th pipeline, be connected with promotion on the 5th pipeline Pump is connected with valve and flowmeter on the 4th pipeline, the 5th pipeline, valve is used for for providing the power of transmission material Control piper being opened and closing, and the separation of extract liquor and raffinate is realized after extraction terminates or is stripped.
Further, the system also includes the fluid reservoir being connect by input duct with single-stage extraction tower, fluid reservoir is used In to single-stage extraction tower add extractant.
Further, flowmeter is connected in the input duct.
The utility model has the beneficial effects that:
Provide a kind of recycling separation system of heavy metal in solid waste.Multitple extraction tower and stripping column it is ingenious It is used cooperatively, has been separately separated out zinc, iron, copper and mixed cadmium and lead, the utility model simple operating conditions and has not needed height The exacting terms such as temperature, high pressure, supercritical fluid, it is low in cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the recycling separation system of heavy metal in 1 solid waste of embodiment.
Specific embodiment
The utility model is specifically described below with reference to embodiment, but not limited to this.
Embodiment 1
As shown in Figure 1, leaching device 1 is made of container tank and blender, blender connects motor, and motor passes through electronics control Device control processed.1 top of leaching device is connected with vibration-type loading hopper (not marking in figure) for adding solid waste, container Tank top connects charging line, for adding extraction acid solution used.
Leaching device 1 passes through the second piping connection extraction equipment by the first piping connection filter device 2, filter device 2, Extraction equipment includes the single-stage extraction tower of thtee-stage shiplock, and the single-stage extraction towers at different levels are respectively connected with stripping column.Wherein, level-one Extraction tower 3, second level extraction tower 4, three-level extraction tower 5 are sequentially connected by third pipeline.
Level-one extraction tower 3 is by the 4th pipeline and the 5th piping connection level-one stripping column 6, in level-one extraction tower 3 and one Between grade stripping column 6 the 4th pipeline that connects and the 5th pipeline be respectively used to from level-one extraction tower 3 to level-one stripping column 6, Transmit material in opposite directions from level-one stripping column 6 to level-one extraction tower 3.
Second level extraction tower 4 is by the 4th pipeline and the 5th piping connection second level stripping column 7, in second level extraction tower 4 and two Between grade stripping column 7 the 4th pipeline that connects and the 5th pipeline be respectively used to from second level extraction tower 4 to second level stripping column 7, Transmit material in opposite directions from second level stripping column 7 to second level extraction tower 4.
Three-level extraction tower 5 is by the 4th pipeline and the 5th piping connection three-level stripping column 8, in three-level extraction tower 5 and three Between grade stripping column 8 the 4th pipeline that connects and the 5th pipeline be respectively used to from three-level extraction tower 5 to three-level stripping column 8, Transmit material in opposite directions from three-level stripping column 8 to three-level extraction tower 5.
Level-one extract liquor holding vessel 9 is connect with level-one extraction tower 3, and second level extract liquor holding vessel 10 and second level extraction tower 4 are logical Input duct connection is crossed, for adding extract liquor to extraction tower, is connected with flowmeter in input duct.
Level-one stripping column 6, second level stripping column 7, three-level stripping column 8 are connected with input duct, for adding back extraction Take required strippant.
First pipeline, third pipeline, the 4th pipeline, is connected with elevator pump on the 5th pipeline at the second pipeline, for providing biography The power of defeated material.
Valve and flowmeter are connected on 4th pipeline, the 5th pipeline, valve being opened and closing for control piper, Extraction terminates or realizes after being stripped the separation of extract liquor and raffinate.
It is recycled from the industrial solid castoff based on flying dust, flyash and red mud using the separation system of embodiment 1 Separate the metals such as copper, cadmium, lead, zinc and iron.
Sour leach step: by based on flying dust, flyash and red mud etc. powdery trade waste and hydrochloric acid add in proportion Enter acidleach device 1, stirs.
Solid-liquid separation step: the supernatant liquid after extraction is inputted into filter device 2 by pipeline, is separated through filter device 2 Afterwards, gained filtrate is added in level-one extraction tower 3 by elevator pump pipeline, filter residue is thrown to acidleach device 1 again.
Level-one extraction: 5- salicylaldoxime is added to level-one extraction tower 3, after extraction, extraction by level-one extract liquor holding vessel 9 Second level extraction tower 4 is added by elevator pump pipeline in extract liquor by liquid and raffinate separation, and it is anti-that raffinate by pipeline enters level-one Extraction tower 6.Level-one extracts in triplicate.
Level-one back extraction: dust technology is added to level-one stripping column 6, raffinate obtained by level-one extraction step is stripped It takes, after back extraction, extract liquor and raffinate separation, the organic phase raffinate being stripped enter level-one extraction tower 3.Repeat one Twice, the extract liquor being stripped is rich in copper compound solution for grade back extraction.
Second level extraction: 923 extractant of Cyanex, extraction are added to second level extraction tower 4 by second level extract liquor holding vessel 10 Afterwards, extract liquor and raffinate separation, extraction gained extract liquor enter three-level extraction tower 5 by elevator pump pipeline, and raffinate passes through Pipeline enters second level stripping column 7.Second level extracts in triplicate.
Second level back extraction: being added Klorvess Liquid into second level back extraction tower 7, extracts gained raffinate to second level and is stripped It takes, after back extraction, extract liquor and raffinate separation, organic phase raffinate enter second level extraction tower 4.Repeat second level back extraction three Secondary, the extract liquor being stripped is rich in cadmium, lead mixed compound solution.
Three-level extraction: being added pure water to three-level extraction tower 5, and after extraction, extract liquor and raffinate separation, raffinate pass through pipe Road enters three-level stripping column 8.The extract liquor of three-level extraction arrived is rich in zinc compound solution in triplicate.
Three-level back extraction: dust technology is added to three-level extraction tower 8, three-level extraction gained raffinate is stripped, repeat Back extraction can obtain be rich in iron compound solution three times.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention The limitation of range is protected, although the invention is described in detail with reference to the preferred embodiments, those skilled in the art should Understand, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the essence of technical solution of the present invention And range.

Claims (8)

1. the recycling separation system of heavy metal in a kind of solid waste, which is characterized in that including sequentially connected leaching device, Equipment for separating liquid from solid and extraction equipment, the extraction equipment include that multiple groups pass through the concatenated single-stage extraction tower of third pipeline, each group The single-stage extraction tower, which passes through the 4th pipeline and the 5th piping connection, stripping column.
2. recycling separation system according to claim 1, which is characterized in that the extraction equipment includes three groups of single-stage extractions Tower.
3. recycling separation system according to claim 1 or 2, which is characterized in that the equipment for separating liquid from solid is filtering dress It sets, one of gravity settling device, centrifugal sedimentation device.
4. recycling separation system according to claim 1 or 2, which is characterized in that the leaching device is by container and stirring Device composition, blender connect motor, and motor is controlled by electronic controller.
5. recycling separation system according to claim 1 or 2, which is characterized in that the leaching device and separation of solid and liquid fill It sets through the first piping connection, the equipment for separating liquid from solid and extraction equipment pass through the second piping connection.
6. recycling separation system according to claim 5, which is characterized in that first pipeline, the second pipeline, third pipe Road, the 4th pipeline are connected with elevator pump on the 5th pipeline, are connected with valve and flowmeter on the 4th pipeline, the 5th pipeline.
7. recycling separation system according to claim 5, which is characterized in that the system also includes by input duct with The fluid reservoir of single-stage extraction tower connection.
8. recycling separation system according to claim 7, which is characterized in that be connected with flowmeter in the input duct.
CN201820777711.3U 2018-05-23 2018-05-23 The recycling separation system of heavy metal in a kind of solid waste Active CN208218927U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108456782A (en) * 2018-05-23 2018-08-28 广州大学 The recycling piece-rate system and method for heavy metal in a kind of solid waste
CN110819812A (en) * 2019-11-26 2020-02-21 云梭(宁波)科技有限公司 High-speed rail alloy treatment facility
CN115354157A (en) * 2022-08-01 2022-11-18 遂川和创金属新材料有限公司 Neodymium iron boron waste material extraction edulcoration device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108456782A (en) * 2018-05-23 2018-08-28 广州大学 The recycling piece-rate system and method for heavy metal in a kind of solid waste
CN110819812A (en) * 2019-11-26 2020-02-21 云梭(宁波)科技有限公司 High-speed rail alloy treatment facility
CN110819812B (en) * 2019-11-26 2021-04-16 山东鸿昌铁合金有限公司 High-speed rail alloy treatment facility
CN115354157A (en) * 2022-08-01 2022-11-18 遂川和创金属新材料有限公司 Neodymium iron boron waste material extraction edulcoration device
CN115354157B (en) * 2022-08-01 2023-11-24 江西群鑫强磁新材料股份有限公司 Neodymium iron boron waste material extraction edulcoration device

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