CN105903556A - Energy-efficient tailings dry-type deslagging technique - Google Patents
Energy-efficient tailings dry-type deslagging technique Download PDFInfo
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- CN105903556A CN105903556A CN201610231440.7A CN201610231440A CN105903556A CN 105903556 A CN105903556 A CN 105903556A CN 201610231440 A CN201610231440 A CN 201610231440A CN 105903556 A CN105903556 A CN 105903556A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
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Abstract
The invention relates to an energy-efficient tailings dry-type deslagging technique. The technique includes steps that tailings paste is conveyed into a slurry pump; the slurry pump pumps the tailings paste into a swirler for dry-slagging; a bottom flow port of the swirler discharges rough particle paste while an overflow port of the swirler discharges fine particle paste; the rough particle paste discharged from the bottom flow port of the swirler enters into a multi-frequency sieve directly for dewatering; the fine particle paste discharged from the overflow port of the swirler and the paste discharged from the multi-frequency sieve are mixed and then enter a band-type squeezer; a flocculating agent is added and mixed uniformly into the grout in the band-type squeezer, the mixed grout passes through a concentration area of the band-type squeezer for pre-dewatering and then enters a squeezing area of the band-type squeezer for final dewatering, and dry material having a moisture content no greater than 18% is obtained through squeezing. The invention has beneficial effects that the dewatering efficiency is high, the investment is low, the operation cost is low, the floor occupancy is small and the energy consumption is reduced.
Description
Technical field
The present invention relates to a kind of tailings processing method, particularly relate to a kind of energy-efficient tailing dry-type emission
Skill.
Background technology
In recent years, mine industry Tailings Dam occurred in that some major safety problems, as requested, newly built
Tailings Dam must be designed as an independent project, and environmental impact assessment to be handled and safety
Produce the various formalities such as evaluation, and tailing dry row has and can reduce the investment of Tailings Dam, reduces various hands
The advantages such as the continuous trouble examined and operations risks, had obtained developing faster the most in recent years.
Existing tailing dry-type emission process flow many employings concentrator carries out dry row, and occupation area of equipment is big, whole
Complete equipment investment is bigger；Using band filter and chamber-type press filter to be dehydrated, operating cost is higher,
Energy consumption is bigger.
Summary of the invention
The technical problem to be solved is to provide that a kind of dewatering efficiency is higher, investment is less, runs
The energy-efficient tailing dry-type emission technology that cost is lower.
The technical scheme is that a kind of energy-efficient tailing dry-type emission
Skill, comprises the following steps:
1), Tailings Pulp is transported in Pulp pump；
2), Pulp pump Tailings Pulp is squeezed in cyclone and carries out dry row, cyclone underflow opening is discharged thick
Particle slurry, cyclone overfall discharges Fine Particle Slurry；
3), from cyclone underflow opening discharge coarse granule slurry be directly entered multifrequency sieve be dehydrated, many
The frequency sieve sieve upper discharge moisture content filter cake less than 18%, multifrequency sieve sieve lower discharge slurry concentration is the slurry of 30%
Body；
4) after, the Fine Particle Slurry that cyclone overfall the is discharged slurry discharged lower with multifrequency sieve sieve mixes
Enter in belt press, in the serosity entering squeezer, add flocculant, and mix homogeneously, mixing
After slurry carry out predrainage through the enrichment region of belt press, subsequently enter the squeezing of belt press
District carries out final dewatering, squeezes out the moisture content siccative less than 18%.
The invention has the beneficial effects as follows: a kind of energy-efficient tailing dry-type emission technology of the present invention, dehydration effect
Rate is higher, it is less to invest, operating cost is relatively low, save floor occupying area, energy efficient.
Further: step 1) in, Tailings Pulp fineness is the most whole more than 500 desired substance content
The 80% of Tailings Pulp.
Above-mentioned further scheme provides the benefit that: the tailing dry-type emission technology of the present invention can meet Tailings Pulp
Fineness is more than the dehydration requirement of the mineral of whole Tailings Pulp 80% more than 500 desired substance content.
Further: step 3) in, multifrequency sieve compass screen surface is provided with the sieve plate of width 0.5-0.18mm screen slot,
During dehydration, multifrequency sieve is driven by two motor, is doing straight line fortune horizontal by 45 ° of angle directions
Dynamic.
Above-mentioned further scheme provides the benefit that: do not use band filter and chamber-type press filter to take off
Water, energy consumption is relatively low, and dry ore deposit per ton energy consumption is less than 4 yuan, and operating cost is relatively low.
Further: step 4) in, the pressed zone of belt press includes that two are done homodromous filtration
Band, at initial dose location, two filter bags do not contact, and the mixture slurry after predrainage enters described band
The pressed zone of formula squeezer, two homodromous filter bags make S along the roller of multiple S-type distributions
Type moves, and moisture is squeezed out from two filter bags.
Above-mentioned further scheme provides the benefit that: the S-type distribution of roller, and moisture can be made fully to squeeze out.
Further: step 4) in, flocculant is polyacrylamide, and addition is step 4) middle mixing
3/1000ths that in slurry, dry ore deposit is measured.
Above-mentioned further scheme provides the benefit that: adds appropriate flocculant and contributes to the dry row of mine tailing.
Further: step 4) in, the overflow water squeezed out through belt press slightly precipitates, and uses light
After catalytic oxidation technologies processes, can return to produce recycling.
Above-mentioned further scheme provides the benefit that: by overflow water recycling, using water wisely.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the present invention.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining this
Invention, is not intended to limit the scope of the present invention.
As it is shown in figure 1, the copper tailing of certain mining company, mine tailing proportion is 2.7 tons/cubic metre, mine tailing
Dry ore deposit amount is 500 ton day, and slurry concentration is 35%, and slurry concentration is that solid accounts for the quality of whole slurry and divides
Number, copper tailing granularity accounts for the 80% of whole Tailings Pulp more than 200 mesh content of material.This copper tailing is entered
The dry row of row, specifically comprises the following steps that
1), copper tailing slurry enter conveying Tailings Pulp Pulp pump in, according to above-mentioned parameter, pass through
Design and calculating, the model selecting Pulp pump is XPA80/80, and Pulp pump power of motor is 18.4kw-4
Level；
2), Pulp pump copper tailing slurry is squeezed into cyclone carries out dry row, the model of cyclone is selected
XC II 200 × 3 (1 group), cyclone charging aperture equivalent diameter is 40mm, and cyclone underflow opening is discharged thick
Particle slurry, slurry concentration is about 66%, and cyclone underflow tap diameter is 18mm, and cyclone overfall is straight
Footpath is 50mm, and cyclone overfall discharges Fine Particle Slurry, and slurry concentration is about 26%；
3), from cyclone discharge coarse granule slurry be directly entered multifrequency sieve be dehydrated, multifrequency screen
Model be VD15, screen slot width is 0.3mm, and during dehydration, multifrequency sieve is driven by two motor,
Moving along a straight line horizontal by 45 ° of angle directions.The upper filter cake discharging moisture content 15% of multifrequency sieve sieve,
Multifrequency sieve sieve lower discharge slurry concentration is the slurry of 35%；
4), step 2) in cyclone overfall Fine Particle Slurry and the step 3 discharged) in multifrequency sieve sieve
Entering in belt press after the slurry mixing of lower discharge, the width of belt press is 3 meters, belt pressure
The pressed zone of crusher includes that two are made homodromous filter bag, in initial dose location, two described mistakes
Strainer does not contacts.Adding concentration in the serosity entering belt press is the polyacrylamide of 0.1%, adds
Dosage is 3/1000ths that in mixture slurry, dry ore deposit is measured, and by slurry mix homogeneously, mixed slurry passes through
The enrichment region of belt press carries out predrainage, and the pressed zone subsequently entering belt press finally takes off
Water, two homodromous filter bags make S type along the roller of multiple S-type distributions and move, moisture from
Article two, described filter bag is squeezed out, obtained the siccative that moisture content is 15%.
By calculating, power consumption is 3.5 yuan/ton, energy efficient.
The overflow water squeezed out through belt press slightly precipitates, after using photocatalysis oxidation technique to process,
Can return to produce recycling.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the present invention
Spirit and principle within, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (6)
1. an energy-efficient tailing dry-type emission technology, it is characterised in that: comprise the following steps:
1), Tailings Pulp is transported in Pulp pump；
2), Pulp pump Tailings Pulp is squeezed in cyclone and carries out dry row, described cyclone underflow opening is arranged
Going out coarse granule slurry, described cyclone overfall discharges Fine Particle Slurry；
3), from described cyclone underflow opening discharge coarse granule slurry be directly entered multifrequency sieve be dehydrated,
The upper moisture content filter cake less than 18% of discharging of described multifrequency sieve sieve, discharges slurry concentration under described multifrequency sieve sieve
It it is the slurry of 30%；
4), the Fine Particle Slurry that described cyclone overfall the is discharged slurry discharged lower with described multifrequency sieve sieve
Enter after body mixing in belt press, in the serosity entering described belt press, add flocculant,
And mix homogeneously, mixed slurry carries out predrainage through the enrichment region of described belt press, then
The pressed zone entering described belt press carries out final dewatering, squeezes out moisture content doing less than 18%
Material.
A kind of energy-efficient tailing dry-type emission technology the most according to claim 1, it is characterised in that:
Step 1) in, Tailings Pulp fineness is not more than the 80% of whole Tailings Pulp more than 500 desired substance content.
A kind of energy-efficient tailing dry-type emission technology the most according to claim 1, it is characterised in that:
Step 3) in, described multifrequency sieve compass screen surface is provided with the sieve plate of width 0.5-0.18mm screen slot, during dehydration,
Described multifrequency sieve is driven by two motor, is moving along a straight line horizontal by 45 ° of angle directions.
A kind of energy-efficient tailing dry-type emission technology the most according to claim 1, it is characterised in that:
Step 4) in, the pressed zone of described belt press includes that two are made homodromous filter bag, is rising
Beginning dose location, two described filter bags do not contact, and the mixture slurry after predrainage enters described belt pressure
The pressed zone of crusher, two homodromous described filter bags make S along the roller of multiple S-type distributions
Type moves, and moisture is squeezed out from two described filter bags.
A kind of energy-efficient tailing dry-type emission technology the most according to claim 1, it is characterised in that:
Step 4) in, described flocculant is polyacrylamide, and addition is step 4) in dry in mixture slurry
3/1000ths of ore deposit amount.
A kind of energy-efficient tailing dry-type emission technology the most according to claim 1, it is characterised in that:
Step 4) in, the overflow water squeezed out through described belt press slightly precipitates, and uses photochemical catalytic oxidation
After technical finesse, can return to produce recycling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610231440.7A CN105903556A (en) | 2016-04-14 | 2016-04-14 | Energy-efficient tailings dry-type deslagging technique |
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| CN201610231440.7A CN105903556A (en) | 2016-04-14 | 2016-04-14 | Energy-efficient tailings dry-type deslagging technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109107753A (en) * | 2018-10-25 | 2019-01-01 | 中国铝业股份有限公司 | A kind of method of bauxite washup tailing sludge dehydration |
| CN113217090A (en) * | 2021-03-19 | 2021-08-06 | 代县双立选厂 | Large-scale low-concentration tailing dry-discharging treatment and paste treatment combined treatment method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1930090A (en) * | 2004-03-12 | 2007-03-14 | 西巴特殊化学水处理有限公司 | Dewatering process |
| CN101966526A (en) * | 2010-09-27 | 2011-02-09 | 高文玉 | High-efficiency and low-energy consumption metal tailings exhausting method and equipment thereof |
| CN103272686A (en) * | 2013-06-20 | 2013-09-04 | 鞍钢集团矿业公司 | Conveying technology for iron tailing paste |
| CN103520995A (en) * | 2012-07-05 | 2014-01-22 | 宁津县正泰机械设备制造有限公司 | Tailing dry-discharging device |
| CN103657840A (en) * | 2013-07-10 | 2014-03-26 | 中蓝连海设计研究院 | Dry type discharge method of phosphorus ore tailings |
| CN103706467A (en) * | 2013-12-26 | 2014-04-09 | 鞍钢集团矿业公司 | New technology for dewatering iron tailings |
| CN104001370A (en) * | 2014-05-30 | 2014-08-27 | 唐山海普科技有限公司 | Dry discharge technology of tailings |
-
2016
- 2016-04-14 CN CN201610231440.7A patent/CN105903556A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1930090A (en) * | 2004-03-12 | 2007-03-14 | 西巴特殊化学水处理有限公司 | Dewatering process |
| CN101966526A (en) * | 2010-09-27 | 2011-02-09 | 高文玉 | High-efficiency and low-energy consumption metal tailings exhausting method and equipment thereof |
| CN103520995A (en) * | 2012-07-05 | 2014-01-22 | 宁津县正泰机械设备制造有限公司 | Tailing dry-discharging device |
| CN103272686A (en) * | 2013-06-20 | 2013-09-04 | 鞍钢集团矿业公司 | Conveying technology for iron tailing paste |
| CN103657840A (en) * | 2013-07-10 | 2014-03-26 | 中蓝连海设计研究院 | Dry type discharge method of phosphorus ore tailings |
| CN103706467A (en) * | 2013-12-26 | 2014-04-09 | 鞍钢集团矿业公司 | New technology for dewatering iron tailings |
| CN104001370A (en) * | 2014-05-30 | 2014-08-27 | 唐山海普科技有限公司 | Dry discharge technology of tailings |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109107753A (en) * | 2018-10-25 | 2019-01-01 | 中国铝业股份有限公司 | A kind of method of bauxite washup tailing sludge dehydration |
| CN113217090A (en) * | 2021-03-19 | 2021-08-06 | 代县双立选厂 | Large-scale low-concentration tailing dry-discharging treatment and paste treatment combined treatment method |
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