CN102515324A - Method and device for treating acid mine wastewater - Google Patents
Method and device for treating acid mine wastewater Download PDFInfo
- Publication number
- CN102515324A CN102515324A CN2011104083705A CN201110408370A CN102515324A CN 102515324 A CN102515324 A CN 102515324A CN 2011104083705 A CN2011104083705 A CN 2011104083705A CN 201110408370 A CN201110408370 A CN 201110408370A CN 102515324 A CN102515324 A CN 102515324A
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- China
- Prior art keywords
- hydrochloric acid
- venturi tube
- reactor drum
- medicament
- sodium sulfide
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Abstract
The invention discloses a method and a device for treating acid mine wastewater. The device consists of a sodium sulfide solution box, a hydrochloric acid solution box, a drug reactor, a venture tube, a plurality of chemical industry valves and a plurality of corresponding pipelines, wherein a sodium sulfide solution adding port, a hydrochloric acid solution adding port and an air vent are arranged at the top of the drug reactor, a diluted hydrochloric acid solution adding port is arranged right above an automatically-flowing outlet at the bottom of the reactor, and the sodium sulfide solution adding port and the air vent are distributed at two sides of the top of the reactor. The device is simple in structure, the operation method is easy and convenient, and the operation is safe..
Description
One. technical field
The present invention relates to the mine wastewater processing technology field, particularly a kind of method and device of handling acid wastewater in mine.
Two. background technology
For satisfying the needs of Chinese society rapid economic development, a large amount of exploitations of Mineral resources have produced the acid waste water that contains heavy metal ion in a large number.In the acid wastewater in mine treatment technology, technology is simple, medicament is cheap, metallic sulfide is insoluble in characteristics such as soda acid comprehensively recovering valuable metal but sulphide precipitation is because of it has, so in bargh, generally used.In this treatment process, sodium sulphite, sulfurated lime, barium sulphide, Sodium sulfhydrate, hydrogen sulfide sulfides can be used as water treatment agent, and it is dissolved in the S2-and the heavy metal ion that produce behind the water and reacts, and generate the metallic sulfide deposition.Hydrogen sulfide possesses many advantages as water treatment agent, as comprehensively reclaim at metal, aspect the content control of sulfide precipitation thing and deposit seeds morphology Control or the like.
Hydrogen sulfide seldom is used for industrial production, but still has the existence of Industrial products, and it derives from the low temperature coking of coal mainly as sub product, the sulfur-bearing oil exploitation, refines industry such as rubber, process hides, dyestuff, sugaring.Because these industry are away from metal mine, factors such as the transportation cost of hydrogen sulfide and safe handling all are unfavorable for the application of its water treatment field in the mine.In addition, Sodium sulfhydrate also is a selection that substitutes hydrogen sulfide, but its poor stability promptly takes place to go bad in dry air, and inconvenience stores, and therefore, utilizes metallic sulfide to produce the better selection that hydrogen sulfide is the acid wastewater in mine treatment process.Sodium sulphite is because its advantage at aspects such as price, transportation, stability and safe handlings becomes a kind of common ore dressing and environmental protection medicament in the metal mine.Sodium sulphite very easily with acid-respons, reaction is for S under the situation of excessive acid
2-+ 2H
+→ H
2S ↑, and reaction is S under the inexcessive situation of acid
2-+ H
+→ HS
-, promptly generate hydrogen sulfide (or intermediate product Sodium sulfhydrate) and be applied to water technology.
Three. summary of the invention
Technical scheme of the present invention is following:
Apparatus of the present invention are by sodium sulfide solution case (1), hydrochloric acid soln case (2), medicament reactor drum (6), venturi tube (7), and some chemical industry valves and respective line constitute.A sodium sulphite dosing mouth (5), a hydrochloric acid dosing mouth (4) and a ventilating pit (3) are arranged at medicament reactor drum (6) top; Directly over spout, sodium sulphite dosing mouth (5) and ventilating pit (3) then are distributed in the both sides at medicament reactor drum (6) top to one of them hydrochloric acid dosing mouth (4) in medicament reactor drum (6) bottom.Under normal dosing situation, ventilating pit (3) is in suction condition on the one hand and can cause hydrogen sulfide to overflow in a large number in the air, can avoid medicament reactor drum (6) on the other hand and take place if the phenomenon that causes gas to go out to the liquid medicine case takes place to stop up.(6) portion also is provided with a sewage draining exit (11) at the bottom of the medicament reactor drum except that a venturi tube suction port (9) being arranged and venturi tube (7) is connected.
The adding method thereof that adopts apparatus of the present invention be with solid sodium sulfide on request concentration be formulated in the sodium sulfide solution case; And with hydrochloric acid on request concentration dilution be formulated in the dilute hydrochloric acid solution case, start air, through the pilot-gas variable valve; High-pressure air is charged in the venturi tube; Airflow gets into the throat of venturi tube, and when diffuser tube discharges, the inner formation of its throat's suction port negative pressure region.Control medicament variable valve, sodium sulfide solution and dilute hydrochloric acid solution are from flowing in the medicament reactor drum.This reactor drum is connected with the venturi tube suction port.Under the suction function of venturi tube suction port, sodium sulphite and hydrochloric acid reaction product solution get in the venturi tube, acutely mix with high-speed gas, and from the diffuser tube of venturi tube, flow out, and are injected in the dosing object.
The present invention has following advantage and beneficial effect:
(1) apparatus of the present invention are simple in structure, and working method is easy, operational safety.
(2) make the Venturi pipe jet with high pressure draft, not only have energy-conservation, medicament sufficient reacting, the high advantage of mixture strength, and when medicament-air-water mixture injected the dosing object, a large amount of microvesicles of formation can play well-beaten effect.
(3) medicament-air-water mixture pH value is lower than 7, can avoid non-purpose metal to precipitate with hydroxide form, has realized separation of metal ions as far as possible, has improved the percentage composition of purpose metal in the sulfide precipitation thing.
(4) in the water treatment object, the actual medicament that adds is hydrogen sulfide (or mix sulphur sodium hydride), can improve the cupric sulfide particle form, strengthens sedimentation effect.
Four. description of drawings
Fig. 1 is a kind of method of acid wastewater in mine and structural representation of device handled of the present invention.
Be designated in the accompanying drawing:
1. sodium sulfide solution case; 2. hydrochloric acid soln case; 3. ventilating pit; 4. hydrochloric acid dosing mouth; 5. sodium sulphite dosing mouth; 6. medicament reactor drum; 7. venturi tube; 8. venturi tube diffuser tube 9. venturi tube suction ports; 10. venturi tube enters the mouth; 11. blow-off pipe.
Five. embodiment
Below in conjunction with accompanying drawing the specific embodiment of the invention is further specified.
As shown in the figure, by the water treatment chemicals dosing plant that the present invention proposes, its adding method thereof be with solid sodium sulfide on request concentration be formulated in the sodium sulfide solution case (1), and with hydrochloric acid on request concentration dilution be formulated in the dilute hydrochloric acid solution case (2).High-pressure air is charged into this pipe (7) from venturi tube inlet (10), and whether inspection chemicals dosing plant pipeline is unimpeded.Control medicament variable valve successively flows into dilute hydrochloric acid solution and sodium sulfide solution in the medicament reactor drum (6) through hydrochloric acid dosing mouth (4) and sodium sulphite dosing mouth (5) respectively certainly.Regulate airstream pressure to reactor solution and can flow into venturi tube suction port (9), and make reactor drum ventilating pit (3) be in suction condition.Medicament-air-water mixture joins the treating water from the venturi tube expansion section mouth of pipe (8).Needs according to water technology control; Sodium sulfide solution concentration or flow are regulated; And the concentration of corresponding adjusting hydrochloric acid soln or flow, make the diffuser tube outflow pH value of solution value of venturi tube be lower than 7, guarantee that sodium sulphite thoroughly changes into to hydrogen sulfide or Sodium sulfhydrate.
Claims (1)
- The method of handling acid wastewater in mine and device adopt the adding method thereof of apparatus of the present invention be with solid sodium sulfide on request concentration be formulated in the sodium sulfide solution case; And with hydrochloric acid on request concentration dilution be formulated in the dilute hydrochloric acid solution case, start air, through the pilot-gas variable valve; High-pressure air is charged in the venturi tube; Airflow gets into the throat of venturi tube, and when diffuser tube discharges, the inner formation of its throat's suction port negative pressure region; It is characterized in that: apparatus of the present invention are by sodium sulfide solution case (1), hydrochloric acid soln case (2), medicament reactor drum (6), venturi tube (7), and some chemical industry valves and respective line constitute.A sodium sulphite dosing mouth (5), a hydrochloric acid dosing mouth (4) and a ventilating pit (3) are arranged at medicament reactor drum (6) top; One of them hydrochloric acid dosing mouth (4) in medicament reactor drum (6) bottom directly over spout; Sodium sulphite dosing mouth (5) and ventilating pit (3) then are distributed in the both sides at medicament reactor drum (6) top; Medicament reactor drum (6) bottom also is provided with a sewage draining exit (11) except that a venturi tube suction port (9) being arranged and venturi tube (7) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104083705A CN102515324A (en) | 2011-12-09 | 2011-12-09 | Method and device for treating acid mine wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104083705A CN102515324A (en) | 2011-12-09 | 2011-12-09 | Method and device for treating acid mine wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102515324A true CN102515324A (en) | 2012-06-27 |
Family
ID=46286475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104083705A Pending CN102515324A (en) | 2011-12-09 | 2011-12-09 | Method and device for treating acid mine wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102515324A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020188295A1 (en) * | 2019-03-21 | 2020-09-24 | Samatek Limited | Rag relief for overflow screen |
| CN111804013A (en) * | 2020-06-27 | 2020-10-23 | 宁夏共享机床辅机有限公司 | Floating oil removing device |
| CN112358086A (en) * | 2020-11-09 | 2021-02-12 | 陕西理工大学 | Chemical industry waste liquid purification unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381074A (en) * | 2007-09-06 | 2009-03-11 | 株式会社东芝 | Heavy metal collection system and heavy metal collection method |
| CN102167433A (en) * | 2011-03-28 | 2011-08-31 | 淮北重科矿山机器有限公司 | Automatic feeding device of powdery flocculating agent |
-
2011
- 2011-12-09 CN CN2011104083705A patent/CN102515324A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381074A (en) * | 2007-09-06 | 2009-03-11 | 株式会社东芝 | Heavy metal collection system and heavy metal collection method |
| CN102167433A (en) * | 2011-03-28 | 2011-08-31 | 淮北重科矿山机器有限公司 | Automatic feeding device of powdery flocculating agent |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020188295A1 (en) * | 2019-03-21 | 2020-09-24 | Samatek Limited | Rag relief for overflow screen |
| CN111804013A (en) * | 2020-06-27 | 2020-10-23 | 宁夏共享机床辅机有限公司 | Floating oil removing device |
| CN112358086A (en) * | 2020-11-09 | 2021-02-12 | 陕西理工大学 | Chemical industry waste liquid purification unit |
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Application publication date: 20120627 |