CN106285774A - A kind of cyanogen-containing tailing innoxious paste body filling method - Google Patents

A kind of cyanogen-containing tailing innoxious paste body filling method Download PDF

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Publication number
CN106285774A
CN106285774A CN201610669345.5A CN201610669345A CN106285774A CN 106285774 A CN106285774 A CN 106285774A CN 201610669345 A CN201610669345 A CN 201610669345A CN 106285774 A CN106285774 A CN 106285774A
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CN
China
Prior art keywords
cyanogen
innoxious
ore pulp
paste body
body filling
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Pending
Application number
CN201610669345.5A
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Chinese (zh)
Inventor
马跃
李伟
高飞
谢超
韩洪鹏
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Dalian Earth Environment Technology Co., Ltd.
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DALIAN DITUO HEAVY INDUSTRY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by DALIAN DITUO HEAVY INDUSTRY Co Ltd filed Critical DALIAN DITUO HEAVY INDUSTRY Co Ltd
Priority to CN201610669345.5A priority Critical patent/CN106285774A/en
Publication of CN106285774A publication Critical patent/CN106285774A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/005Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material

Abstract

The invention provides a kind of cyanogen-containing tailing innoxious paste body filling method, comprise the following steps: after deep cone concentrates, size mixing, two-stage nitration bores concentrations deeply, secondary is sized mixing, except cyanogen oxidation and concentration.Cyanogen-containing tailing provided by the present invention innoxious paste body filling method, the method using physics sedimentation and dilution desorption technique, chemical oxidation techniques and paste body filling technology to combine, comprehensively utilize again after sludge containing cyanogens is carried out harmless treatment.This method technological process is simple, and treatment effeciency is high, and operating cost is low, relieves the security context hidden danger of cyanogen-containing tailing.

Description

A kind of cyanogen-containing tailing innoxious paste body filling method
Technical field
The invention belongs to tailings glass field, be specifically related to a kind of cyanogen-containing tailing innoxious paste body filling method.
Background technology
Cyanidation gold-extracted being still current gold manufacturing enterprises and carry the prevailing technology of gold, but this technique can produce in process of production Substantial amounts of containing cyanogen waste residue.The expansion along with golden production scale and production history is processed at present containing cyanogen waste residue many employings bin system Prolongation, gold tailings accumulating amount increases year by year and does not only take up a large amount of soil, polluted surface water, subsoil water and soil, and very Many Tailings Dams exceed the time limit or over loading uses, and make Tailings Dam there is very big potential safety hazard, and once break down leakage, it will the ring to surrounding Border produces great pollution effect, and Tailings Dam is built and maintenance management also needs to put into substantial contribution simultaneously.Therefore, accelerate to advance Huang Gold is smelted containing cyanogen Solid state fermentation and comprehensive utilization extremely urgent.
The harmless treatment approach of sludge containing cyanogens has two classes, a class to be to Tailings Slurry filter pressing, the dry heap of filtering residue, and filtrate is carried out Integrated treatment, reuse or qualified discharge after process;Another kind of is that Tailings Slurry directly processes, and method is substantially destruction cyanide.Before Person is easily processed due to mud-water separation, cyanide, technology maturation, controls simple, but owing to filter pressing cost is high, it is difficult at large ore Mountain popularization and application.The development trend of gold industry is to develop towards extensive treating capacity, and corresponding, sludge containing cyanogens is harmless The development trend that change processes is towards the direction progress directly processed.
Summary of the invention
In order to solve above technical problem, the invention provides a kind of cyanogen-containing tailing innoxious paste body filling method, including Following steps:
(1) mine tailing ore pulp is after one section of deep cone concentrates, and supernatant fluid reuse, underflow adds new water under stirring and adjusts Slurry;
(2) ore pulp after sizing mixing is after two-stage nitration bores concentration deeply, and supernatant fluid reuse, underflow adds new water under stirring and enters Row secondary is sized mixing;
(3) after secondary is sized mixing, ore pulp control ph is in the range of 8~9, adds except cyanogen oxidant, reaction under stirring 30min~50min;
(4) concentrate except the ore pulp after cyanogen oxidation processes enters mastic thickener, make mass concentration 68%~70% Mastic, mastic is used for mine down-hole filling.
2., in step described in (1), (2), deep cone concentrates end mass concentration flow control 55%~60%.
3., in step described in (3), after secondary is sized mixing, ore pulp mass concentration controls 39%~42%, addition except cyanogen aoxidize Agent is calcium hypochlorite, and calcium hypochlorite dosage is relevant with ore pulp cyanide content, the calcium hypochlorite that cyanide content height then adds Many, cyanide content is low, and the calcium hypochlorite added is few.
The invention provides a kind of cyanogen-containing tailing innoxious paste body filling method, use physics sedimentation and dilution desorbing skill The method that art, chemical oxidation techniques and paste body filling technology combine, the most comprehensive after sludge containing cyanogens is carried out harmless treatment Utilize.This method technological process is simple, and treatment effeciency is high, and operating cost is low, relieves the security context hidden danger of cyanogen-containing tailing.
Accompanying drawing explanation
Fig. 1 is cyanogen-containing tailing provided by the present invention innoxious paste body filling method flow schematic diagram.
Detailed description of the invention
Embodiment 1:
Sludge containing cyanogens concentration 40%, pH is 11.21, cyanide content 235.18mg/L.
(1) mine tailing ore pulp is after one section of deep cone concentrates, and obtains the underflow of pulp density 55%, supernatant fluid reuse, underflow Under stirring, add new water size mixing;
(2) ore pulp after sizing mixing is after two-stage nitration bores concentration deeply, to the underflow of mass percent 60%, and supernatant fluid reuse, Underflow adds new water under stirring and carries out secondary and size mixing;
(3) after secondary is sized mixing, pulp density controls 42%, in the range of pH value 8~9, adds such as hypochlorous acid under stirring Calcium 0.3Kg/t, reacts 30min;
(4) the ore pulp entrance mastic thickener after oxidation processes concentrates, and makes the mastic of mass concentration 70%, by cream Body is used for mine down-hole filling.
Mastic after harmless treatment, after Cyanide Leaching test differentiates, cyanide is less than 1.0mg/L, belongs to general Trade waste.
Embodiment 2:
Sludge containing cyanogens concentration 37%, pH is 11.40, cyanide content 276.03mg/L.
(1) mine tailing ore pulp is after one section of deep cone concentrates, and obtains the underflow of ore pulp mass concentration 60%, supernatant fluid reuse, Underflow adds new water under stirring and sizes mixing;
(2) ore pulp after sizing mixing is after two-stage nitration bores concentration deeply, to the underflow of mass percent 58%, and supernatant fluid reuse, Underflow adds new water under stirring and carries out secondary and size mixing;
(3) after secondary is sized mixing, pulp density controls 40%, in the range of pH value 8~9, adds such as hypochlorous acid under stirring Calcium 0.35Kg/t, reacts 40min;
(4) the ore pulp entrance mastic thickener after oxidation processes concentrates, and makes the mastic of mass concentration 69%, by cream Body is used for mine down-hole filling.
Mastic after harmless treatment, after Cyanide Leaching test differentiates, cyanide is less than 1.0mg/L, belongs to general Trade waste.
Embodiment 3:
Sludge containing cyanogens concentration 39%, pH is 11.47, cyanide content 302.31/L.
(1) mine tailing ore pulp is after one section of deep cone concentrates, and obtains the underflow of ore pulp mass concentration 57%, supernatant fluid reuse, Underflow adds new water under stirring and sizes mixing;
(2) ore pulp after sizing mixing is after two-stage nitration bores concentration deeply, to the underflow of mass percent 55%, and supernatant fluid reuse, Underflow adds new water under stirring and carries out secondary and size mixing;
(3) after secondary is sized mixing, pulp density controls 42%, in the range of pH value 8~9, adds such as hypochlorous acid under stirring Calcium 0.41Kg/t, reacts 50min;
(4) the ore pulp entrance mastic thickener after oxidation processes concentrates, and makes the mastic of mass concentration 68%, by cream Body is used for mine down-hole filling.
Mastic after harmless treatment, after Cyanide Leaching test differentiates, cyanide is less than 1.0mg/L, belongs to general Trade waste.

Claims (3)

1. a cyanogen-containing tailing innoxious paste body filling method, it is characterised in that comprise the following steps:
(1) mine tailing ore pulp is after one section of deep cone concentrates, and supernatant fluid reuse, underflow adds new water under stirring and sizes mixing;
(2) ore pulp after sizing mixing is after two-stage nitration bores concentration deeply, and supernatant fluid reuse, underflow adds new water under stirring and carries out two Secondary size mixing;
(3) after secondary is sized mixing, ore pulp control ph is in the range of 8~9, adds except cyanogen oxidant, reaction under stirring 30min~50min;
(4) concentrate except the ore pulp after cyanogen oxidation processes enters mastic thickener, make the cream of mass concentration 68%~70% Body, carries out mine down-hole filling with described mastic.
Cyanogen-containing tailing the most according to claim 1 innoxious paste body filling method, it is characterised in that described step (1), (2), in, deep cone concentrates underflow mass concentration and controls 55%~60%.
Cyanogen-containing tailing the most according to claim 1 innoxious paste body filling method, it is characterised in that in described step (3), After secondary is sized mixing, ore pulp mass concentration controls 39%~42%, described except cyanogen oxidant be calcium hypochlorite.
CN201610669345.5A 2016-08-15 2016-08-15 A kind of cyanogen-containing tailing innoxious paste body filling method Pending CN106285774A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610669345.5A CN106285774A (en) 2016-08-15 2016-08-15 A kind of cyanogen-containing tailing innoxious paste body filling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610669345.5A CN106285774A (en) 2016-08-15 2016-08-15 A kind of cyanogen-containing tailing innoxious paste body filling method

Publications (1)

Publication Number Publication Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108298718A (en) * 2018-01-31 2018-07-20 辽宁工程技术大学 A kind of integrated conduct method of sludge containing cyanogens
CN108503248A (en) * 2018-04-16 2018-09-07 贵州紫金矿业股份有限公司 A method of doing aggregate using superfine granule lightweight calcium and magnesium gelling ointment material

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101215975A (en) * 2008-01-09 2008-07-09 云南驰宏锌锗股份有限公司 Whole tailings depth controllable homogeneous concentration method
CN101444660A (en) * 2008-12-30 2009-06-03 吴正建 Innocent treatment of cyanide and fluoride in solid waste residues and recycling process thereof
CN103239828A (en) * 2013-05-31 2013-08-14 吴正建 Harmless production process of program-control and manual-control electrolytic aluminum overhaul residues
CN104944639A (en) * 2015-06-09 2015-09-30 长春黄金研究院 Comprehensive utilization method for cyanogen-containing tailing slurry
CN204689778U (en) * 2015-05-14 2015-10-07 长春黄金研究院 A kind of sludge containing cyanogens utilization system
CN105498952A (en) * 2016-02-02 2016-04-20 大连地拓重工有限公司 Gold tailing processing system and method
CN105709920A (en) * 2016-02-02 2016-06-29 大连地拓重工有限公司 Comprehensive recovery method for copper and iron in copper tailings

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101215975A (en) * 2008-01-09 2008-07-09 云南驰宏锌锗股份有限公司 Whole tailings depth controllable homogeneous concentration method
CN101444660A (en) * 2008-12-30 2009-06-03 吴正建 Innocent treatment of cyanide and fluoride in solid waste residues and recycling process thereof
CN103239828A (en) * 2013-05-31 2013-08-14 吴正建 Harmless production process of program-control and manual-control electrolytic aluminum overhaul residues
CN204689778U (en) * 2015-05-14 2015-10-07 长春黄金研究院 A kind of sludge containing cyanogens utilization system
CN104944639A (en) * 2015-06-09 2015-09-30 长春黄金研究院 Comprehensive utilization method for cyanogen-containing tailing slurry
CN105498952A (en) * 2016-02-02 2016-04-20 大连地拓重工有限公司 Gold tailing processing system and method
CN105709920A (en) * 2016-02-02 2016-06-29 大连地拓重工有限公司 Comprehensive recovery method for copper and iron in copper tailings

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108298718A (en) * 2018-01-31 2018-07-20 辽宁工程技术大学 A kind of integrated conduct method of sludge containing cyanogens
CN108503248A (en) * 2018-04-16 2018-09-07 贵州紫金矿业股份有限公司 A method of doing aggregate using superfine granule lightweight calcium and magnesium gelling ointment material
CN108503248B (en) * 2018-04-16 2020-12-18 贵州紫金矿业股份有限公司 Method for using ultrafine-grained light calcium-magnesium gelled paste material as aggregate

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Effective date of registration: 20170831

Address after: 116200 Zhenxing street, Pulandian Bay Industrial Zone, Dalian, Liaoning, China, No. 16

Applicant after: Dalian Earth Environment Technology Co., Ltd.

Address before: 116299 Zhenxing street, Pulandian Bay Industrial Zone, Dalian, Liaoning, China, No. 16

Applicant before: DALIAN DITUO HEAVY INDUSTRY CO., LTD.

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Application publication date: 20170104