CN204672683U - A kind of arsenic slag solidification process integrated system - Google Patents
A kind of arsenic slag solidification process integrated system Download PDFInfo
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- CN204672683U CN204672683U CN201520358494.0U CN201520358494U CN204672683U CN 204672683 U CN204672683 U CN 204672683U CN 201520358494 U CN201520358494 U CN 201520358494U CN 204672683 U CN204672683 U CN 204672683U
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Abstract
The utility model discloses a kind of arsenic slag solidification process integrated system, comprise excavating equipment (1), after excavating equipment (1), be provided with broken arch vibratory equipment (2), conveying equipment (3), high-order storage bin (4), powerful mixing mixing plant (5), fog room (9) and security landfill field (10) successively; Described powerful mixing mixing plant (5) is connected with modified clay adding equipment (6), ferric sulfate adding equipment (7) and solidification water adding equipment (8).This system mixed effect is good, and solidification effect is good, and stability is strong, and secondary pollution risk is lower, and environmental safety is high.
Description
Technical field
The utility model belongs to Heavy Metal Pollution field, refers to a kind of arsenic slag stabilisation/solidification process integrated system further.
Background technology
Heavy metal pollution place causes primarily of industrial " three wastes " such as mining, smelting, plating, chemical industry, electronics, process hides dyestuffs etc., along with the industrialized fast development of China, heavy metal pollution space enrironment safety problem form is severe, polluted enterprises in China's rapid urbanization course or face resettlement, retired place ubiquity high environmental risk, forms significant threat to health and ecological environment.
The exploitation of industrial production, nonferrous metals ore (arsenic minerals, antimony ore and arsenic companion operating mine) and smelting are the primary pollution source of arsenic.Arsenic can be used for metallurgy and semi-conductor industry, as GaAs and copper arsenide.Therefore, the discharge of chemical industry, smelting, electronics industry and mine arsenic-containing waste water, waste residue, and the burning etc. of fossil fuel (as coal) is also the important sources causing arsenic to pollute.
Arsenic minerals, the antimony ore major part of China contain arsenic, and the arsenic slag produced in smelting process is in the past generally air storage, causes environment serious pollution, must carry out safe disposal.
Most of heavy metal waste slag contains noxious material can not direct landfill, in order to reduce, alleviating or eliminate the harm that waste residue itself brings, to reach security landfill field admission control criterion, must carry out stabilisation/solidification process to it before landfill.
Current, the stabilisation/curing technology having obtained development and application both at home and abroad mainly comprises: cement stabilizing/solidification, lime stabilization/solidification, organic polymer stabilisation/solidification, from cementing stabilisation/solidification, stabilization/solidification etc.But some shortcomings of these technology existence all in various degree.
The shortcoming of cement stabilizing/solidification is that cured article has certain increase than the volume and weight of former refuse.
The shortcoming of lime stabilization/solidification is that cured article increases comparatively greatly than the volume and weight of former refuse, is subject to acid medium and corrodes.
The shortcoming of organic polymer stabilisation/solidification is that disposal cost is high, complicated operation.
Be be only applicable to calcium sulfate and calcium sulfite body refuse from the shortcoming of cementing stabilisation/solidification, apparatus expensive, operation requirements is high.
The shortcoming of stabilization/solidification is that device is more complicated, and disposal cost is expensive, and operating temperature is higher, and equipment corrosion is serious.
In addition, arsenic slag stabilisation/solidification technology is high to mix and blend critical equipment needs, and equipment has in the market been difficult to.The place of existing landfill arsenic slag is generally common landfill, easily causes secondary pollution.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of mixed effect good, and solidification effect is good, and stability is strong, and secondary pollution risk is lower, the arsenic slag solidification process integrated system that environmental safety is high.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of arsenic slag solidification process integrated system, comprises excavating equipment, is provided with broken arch vibratory equipment, conveying equipment, high-order storage bin, powerful mixing mixing plant, fog room and security landfill field after excavating equipment successively; Described powerful mixing mixing plant is connected with modified clay adding equipment, ferric sulfate adding equipment and solidification water adding equipment.
Arsenic slag is preferably crushed to the equipment that granularity is 40 ~ 60mm by described broken arch vibratory equipment, is convenient to subsequent cure process.
Described powerful mixing mixing plant is preferably the mixing plant that mixing speed is greater than 1500r/min, make Material Compatibility and uniformity good
Described security landfill field preferably comprises from bottom successively to top layer: basal layer, underground water guide layer, compacting soil protective layer, HDPE rete, geotechnological layer of cloth, effusion guide layer, arsenic slag blanket, exhaust level, impervious barrier, drainage blanket and vegetable layer, prevent secondary pollution.
Compared with prior art, advantage of the present utility model is:
1, arsenic slag solidification process integrated system of the present utility model adds modified clay adding equipment, and because its compressibility of modified clay is good, the corresponding minimizing of volume, also decreases follow-up landfill volume, reduce cost of disposal;
2, arsenic slag of the present utility model solidification process integrated system employs the rotating speed of powerful mixing mixing plant is more than 1500r/min, make Material Compatibility and uniformity good, stabilisation/solidification effect can be improved.
3, arsenic slag solidification process integrated system of the present utility model improves security landfill field, and secondary pollution risk is lower, and environmental safety is higher.
Accompanying drawing explanation
Fig. 1 is arsenic slag of the present utility model solidification process integrated system annexation schematic diagram;
Fig. 2 is described security landfill field structure schematic diagram;
In the drawings, 1 is excavating equipment, and 2 is broken arch vibratory equipments; 3 is conveying equipments, and 4 is high-order storage bins, and 5 is powerful mixing mixing plants; 6 is modified clay adding equipments; 7 is ferric sulfate adding equipments, and 8 is solidification water adding equipments, and 9 is fog rooms; 10 is security landfill fields; 11 is basal layers, and 12 is underground water guide layers, and 13 is compacting soil protective layers; 14 is HDPE retes; 15 is geotechnological layer of cloths, and 16 is effusion guide layers, and 17 is arsenic slag blankets; 18 is exhaust level; 19 is impervious barriers, and 20 is drainage blankets, and 21 is vegetable layers.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described further.
In order to better understand the utility model, below in conjunction with embodiment, the utility model is further described.
As shown in Figure 1, a kind of arsenic slag solidification of the utility model process integrated system, comprise excavating equipment 1, after excavating equipment 1, be provided with broken arch vibratory equipment 2, conveying equipment 3, high-order storage bin 4, powerful mixing mixing plant 5, fog room 9 and security landfill field 10 successively; Described powerful mixing mixing plant 5 is connected with modified clay adding equipment 6, ferric sulfate adding equipment 7 and solidification water adding equipment 8.
As shown in Figure 2, security landfill field 10 is up respectively basal layer 11 successively from bottom, basal layer should smooth, compacting, free from flaw, nothing is loosened the soil, surface should without ponding, stone, tree root and sharp object; Underground water guide layer 12, underground water guide layer adopts underground french drain; Compacting soil protective layer 13, thickness is 700mm, hydraulic conductivity K≤1 × 10
-7m/s; HDPE rete 14, thickness>=1.5mm; Geotechnique's layer of cloth 15, specification>=600g/ ㎡; Effusion guide layer 16, percolate guide layer selects cobble or gravel soil material, and its particle diameter is 16-32mm, and laying depth is 300mm; Arsenic slag blanket 17; Exhaust level 18, exhaust level selects cobble or porous material, and its particle diameter is 32-64mm, and thickness is 350mm; Impervious barrier 19, impervious barrier is clay, and its thickness is 200mm; Drainage blanket 20, drainage blanket selects quartz sand, and particle diameter is 4-8mm, and thickness is 300mm; Vegetable layer 21, vegetable layer selects Nutrition Soil, and thickness is 450mm, and its vegetable layer plants ciliate desert-grass.
Solidification process illustrates:
Pending bulk arsenic slag is delivered to broken arch vibratory equipment 2 by described excavator 1 after excavating, it is about 40 ~ 60mm that bulk arsenic slag is crushed to particle diameter, arsenic slag through fragmentation contains spiral, belt conveyor by the funnel bottom broken arch vibratory equipment 2 through conveying equipment 3() be delivered to high-order storage bin 4, recycling vertical parallax is 1500r/min from flowing into powerful mixing mixing plant 5(mixing plant rotating speed); By modified clay adding equipment 6, modified clay is added to powerful mixing mixing plant 5 simultaneously; By FeSO
4adding equipment 7 is by FeSO
4solution adds to powerful mixing mixing plant 5; Add to powerful mixing mixing plant 5 by solidification water equipment 8 by water, above four kinds of materials uniform stirring in powerful mixing mixing plant 6, after 5 minutes, sends into fog room 9 maintenance 4 days, delivers to security landfill field 10 by outward transport automobile.
The main technologic parameters of described stabilisation/curing technology is:
1. clay alteration, the modified clay that the sodium bentonite namely adding 8% at unselected clay obtains.The particle diameter of modified clay is 0.6 ~ 1.2mm.
2. stabilizing agent is FeSO
4, first need be mixed with the stabiliser solution of concentration proportioning 10%.
3. arsenic slag: modified clay: the weight ratio of stabilizing agent is 100:20:4.
4. the additional proportion of solidification water is that solidification Post RDBMS body moisture content is lower than 15%.
Claims (4)
1. an arsenic slag solidification process integrated system, comprise excavating equipment (1), it is characterized in that, after excavating equipment (1), be provided with broken arch vibratory equipment (2), conveying equipment (3), high-order storage bin (4), powerful mixing mixing plant (5), fog room (9) and security landfill field (10) successively; Described powerful mixing mixing plant (5) is connected with modified clay adding equipment (6), ferric sulfate adding equipment (7) and solidification water adding equipment (8).
2. the solidification of arsenic slag processes integrated system according to claim 1, and it is characterized in that, described broken arch vibratory equipment (2) is that arsenic slag is crushed to the equipment that granularity is 40 ~ 60mm.
3. arsenic slag solidification process integrated system according to claim 1, it is characterized in that, described powerful mixing mixing plant (5) is greater than the mixing plant of 1500r/min for mixing speed.
4. according to one of claim 1-3 described arsenic slag solidification process integrated system; it is characterized in that, described security landfill field (10) comprises from bottom successively to top layer: basal layer (11), underground water guide layer (12), compacting soil protective layer (13), HDPE rete (14), geotechnological layer of cloth (15), effusion guide layer (16), arsenic slag blanket (17), exhaust level (18), impervious barrier (19), drainage blanket (20) and vegetable layer (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520358494.0U CN204672683U (en) | 2015-05-29 | 2015-05-29 | A kind of arsenic slag solidification process integrated system |
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| CN201520358494.0U CN204672683U (en) | 2015-05-29 | 2015-05-29 | A kind of arsenic slag solidification process integrated system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597262A (en) * | 2015-12-18 | 2016-05-25 | 湖南恒凯环保科技投资有限公司 | Medicament and method for stabilizing and solidifying high-concentration arsenic-containing waste residue |
| CN109570183A (en) * | 2018-10-12 | 2019-04-05 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | A kind of method of arsenic-containing waste residue solidification and stabilization processing |
| CN113351630A (en) * | 2021-07-01 | 2021-09-07 | 中城华宇（北京）矿业技术有限公司 | Harmless treatment method for arsenic sulfide slag |
-
2015
- 2015-05-29 CN CN201520358494.0U patent/CN204672683U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597262A (en) * | 2015-12-18 | 2016-05-25 | 湖南恒凯环保科技投资有限公司 | Medicament and method for stabilizing and solidifying high-concentration arsenic-containing waste residue |
| CN109570183A (en) * | 2018-10-12 | 2019-04-05 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | A kind of method of arsenic-containing waste residue solidification and stabilization processing |
| CN113351630A (en) * | 2021-07-01 | 2021-09-07 | 中城华宇（北京）矿业技术有限公司 | Harmless treatment method for arsenic sulfide slag |
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Address after: 410000 Hunan province Changsha hi tech Development Zone, Lu Tin Road No. 8 Building 2030 unit 5 Oaks Patentee after: Hunan Aibulu environmental Polytron Technologies Inc Address before: 410015 Hunan province Changsha labor Road No. 208 Metro landmark Valin 4A layer Patentee before: HUNAN AIRBLUER ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |
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