CN203402948U - Smelting fume acid-making wastewater treatment system - Google Patents
Smelting fume acid-making wastewater treatment system Download PDFInfo
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- CN203402948U CN203402948U CN201320378109.XU CN201320378109U CN203402948U CN 203402948 U CN203402948 U CN 203402948U CN 201320378109 U CN201320378109 U CN 201320378109U CN 203402948 U CN203402948 U CN 203402948U
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Abstract
The utility model discloses a smelting fume acid-making wastewater treatment system. The wastewater treatment system comprises a wastewater storage tank (1), an agent storage tank (2), a super-gravity reactor (7) and a liquid storage tank (10), wherein the wastewater storage tank (1) is used for storing heavy metal wastewater; the agent storage tank (2) is used for storing an agent solution reacting with the heavy metal wastewater; the super-gravity reactor (7) is communicated with the wastewater storage tank (1) and the agent storage tank (2); the heavy metal wastewater from the wastewater storage tank (1) reacts with the agent solution from the agent storage tank (2) in the super-gravity reactor (7); the liquid storage tank (10) is connected with a liquid outlet (14) of the super-gravity reactor (7); the reacted liquid in the super-gravity reactor (7) is discharged into the liquid storage tank (10) through the liquid outlet (14). According to the smelting fume acid making wastewater treatment system, a novel mass transfer technology is adopted, so that a sodium sulfide reaction tank is reduced, the mass transfer is enhanced, and the efficiency of treatment for the heavy metal and arsenic in the acid water is improved; the wastewater treatment system is particularly suitable for being used at places with limitation in height and size.
Description
Technical field
The utility model relates to a kind of system of processing metallurgical off-gas acid-making waste water, relates in particular to the metallurgical off-gas acid-making waste water treatment system in the smelting industries such as copper, plumbous zinc.
Background technology
The spent acid that copper smelting acid making system is discharged, acidity is generally 5～10%, cupric 400～5000mg/l, containing arsenic 600～5000mg/l, first, after plumbous pressure filter is removed solid particulate matter, enter the former liquid bath of spent acid, then enter in vulcanization reaction tank and add sodium sulphite, copper arsonium ion in sour water is formed after sulfide precipitation, through dense, press filtration, be removed.Sodium sulphite joins after vulcanization reaction tank, first reacts generation hydrogen sulfide with the hydrogen ion (more active than cupric ion) in sour water.Its principal reaction mechanism is: partial vulcanization hydrogen volatilizes liquid phase, and the part hydrogen sulfide that is greater than hydrogen sulfide dissolution equilibrium pressure enters liquid phase and reacts production insoluble precipitate and be removed with the copper arsonium ion in sour water.
Under this mechanism, keep higher copper arsenic removal efficiency, in vulcanization reaction groove, just must keep larger hydrogen sulfide pressure, now certainly exist the poisoning problem of hydrogen sulfide leakage; The blast of hydrogen sulfide is limited to 4%-46%, and the hydrogen sulfide pressure that liquid-gas interface is larger also will inevitably cause in gas concentration of hydrogen sulfide higher, and meeting naked light has explosion hazard.If removal of hydrogen sulfide gassing explosion hazard hazard factor, sodium sulphite reacts the hydrogen sulfide generating just to be needed to discharge in time with sour water, liquid-gas interface just cannot guarantee that hydrogen sulfide dissolves needed gaseous phase partial pressure, and in sour water, the clearance of copper arsenic is inevitable significantly declines.
Domestic smelting enterprise for the general method adopting of spent acid copper removal arsenic removal is: spent acid is added in vulcanization reaction groove simultaneously and reacts with sodium sulphite, keep certain comparatively safe gaseous pressure, hydrogen sulfide is returned and dissolve into into liquid phase and copper arsenic plasma reaction, the hydrogen sulfide that reaction is not exclusively overflowed absorbs again with acid rinsing, improve the utilization ratio of hydrogen sulfide, remaining hydrogen sulfide is again with the absorption of ensuring public security of sodium sulfide solution or sodium hydroxide solution.The method has just improved security relatively, has alleviated to a certain extent the harm of hydrogen sulfide, but still has following problem:
1, there is hydrogen sulfide gas leakage, have the Hazard Factor such as poisoning, blast.Traditional sour water vulcanization reaction mechanism makes sour water vulcanization process ensure safety and ensure between copper removal arsenic removal efficiency, is difficult to form unified.Obtain high copper removal arsenic removal efficiency, just need to remain with excessive hydrogen sulfide, have the security risks such as poisoning, blast.
2, exist gypsum tailings, in and slag be defined as the risk of danger wastes.If ensure vulcanization reaction safety, need to reduce adding of sodium sulphite, can reduce copper removal arsenic removal efficiency, cause reacting rear end in and the gypsum tailings that produces of operation, in and slag toxicity leach index and will exceed standard, can be defined as dangerous solid waste, to manage according to the special rules of the useless management of danger, and may make enterprise bear huge solid waste processing costs.
3, sodium sulphite overrate is larger, causes a large amount of unreacted sodium sulphite to enter subsequent disposal operation, needs consuming cost again to process sulfide.
Summary of the invention
The purpose of this utility model is to provide a kind of spent acid that can make evenly to mix with medicament, realizes the metallurgical off-gas acid-making waste water treatment system of quick mass transfer.
For achieving the above object, the concrete technical scheme of metallurgical off-gas acid-making waste water treatment system of the present utility model is:
A treatment system, comprises wastewater storage tank, for depositing heavy metal wastewater thereby; Medicament storage tank, for depositing the liquid medicine reacting with heavy metal wastewater thereby; Supergravity reactor, is communicated with wastewater storage tank and medicament storage tank, and the liquid medicine in the heavy metal wastewater thereby in wastewater storage tank and medicament storage tank reacts in supergravity reactor; Container for storing liquid, is connected with the liquid exit of supergravity reactor, and in supergravity reactor, reacted liquid is discharged in container for storing liquid by liquid exit.
Further, in supergravity reactor, be provided with reactor rotor, on reactor rotor, be provided with rotation centrifugal network, the liquid-inlet pipe of supergravity reactor is over against the both sides that are arranged on reactor rotor, reaction liquid collision after the liquid-inlet pipe ejection over against arranging turns to enter rotates in centrifugal network, in rotating centrifugal network, reacts.
Further, reactor rotor has rotating shaft, one end of rotating shaft is connected with rotor sidewall, the other end is connected with transmission mechanism through the housing of supergravity reactor, rotating shaft is hollow structure, liquid-inlet pipe is arranged on the inside of rotating shaft, and the end of liquid-inlet pipe extends into the inside of reactor rotor, and the end of liquid-inlet pipe is provided with atomizer.
Further, reactor rotor has rotating shaft, one end of rotating shaft is connected with rotor sidewall, the other end is connected with transmission mechanism through the housing of supergravity reactor, rotating shaft is hollow structure, and one end and liquid-inlet pipe that rotating shaft is connected with transmission mechanism are tightly connected, and the other end that rotating shaft is connected with rotor sidewall extends into the inside of reactor rotor, and the end that rotating shaft is arranged in reactor rotor is provided with atomizer.
Further, wastewater storage tank is connected with the first ejector respectively with medicament storage tank, and the outlet of the first ejector is connected with the liquid-inlet pipe of supergravity reactor, and the liquid medicine in the heavy metal wastewater thereby in wastewater storage tank and medicament storage tank mixes in the first ejector.
Further, between wastewater storage tank and medicament storage tank and the first ejector, be respectively arranged with pump.
Further, between the outlet of the first ejector and the liquid-inlet pipe of supergravity reactor, be provided with the second ejector, on container for storing liquid, be formed with gas recovery mouth, gas recovery mouth is connected with the second ejector, and gas remaining in container for storing liquid is blended in the mixed solution of heavy metal wastewater thereby and liquid medicine in the second ejector.
Further, wastewater storage tank is connected with the liquid-inlet pipe of reactor rotor one side in supergravity reactor, medicament storage tank is connected with the liquid-inlet pipe of reactor rotor opposite side, and the liquid medicine in the heavy metal wastewater thereby in wastewater storage tank and medicament storage tank mixes after being sprayed by liquid-inlet pipe in supergravity reactor.
Further, between wastewater storage tank and the liquid-inlet pipe of supergravity reactor, be provided with the second ejector, on container for storing liquid, be formed with gas recovery mouth, gas recovery mouth is connected with the second ejector, and gas remaining in container for storing liquid is blended in heavy metal wastewater thereby in the second ejector.
Further, between wastewater storage tank and the second ejector medicament storage tank, be provided with pump, between the first ejector and the liquid-inlet pipe of supergravity reactor, be provided with pump.
Metallurgical off-gas acid-making waste water treatment system of the present utility model adopts a kind of novel mass transfer technology, can make sodium sulfide retort reduce, and mass transfer is strengthened, and heavy metal and the arsenic efficiency processed in sour water improve, and is particularly suitable for using in height, two-by-twice occasion.This technology is applied in flue gas acid preparing wastewater treatment, can reduce in a large number metallurgical off-gas acid-making waste water treatment unit construction cost on the one hand, also can reduce on the other hand the working cost of environmental protection of enterprise.
In addition, metallurgical off-gas acid-making waste water treatment system of the present utility model adopts high-gravity technology to process metallurgical off-gas acid-making waste water, the sodium sulfide stirred tank volume that can make conventional metallurgical off-gas acid-making waste water process significantly reduces, improved reaction efficiency, reduce chemical feeding quantity, for enterprise has reduced environmental protection input, also effectively prevented the leakage of hydrogen sulfide simultaneously.
During practical application, metallurgical off-gas acid-making waste water treatment system of the present utility model is at acidity 5%-15%, supergravity reactor rotating speed is 400r/min～800r/min, waste acid water containing heavy metal is 200～500:1 with the ratio of adding 20% concentration sodium sulfide solution, when waste acid water temperature is 40 ± 10 ℃, copper content in sour water can be processed 0.05mg/L from 150mg/L, and the arsenic in sour water can be processed 0.36mg/L from 4100mg/L, compares and has significantly improved processing efficiency with existing dirty acid treatment device.
Accompanying drawing explanation
Fig. 1 is the structural representation of metallurgical off-gas acid-making waste water treatment system of the present utility model;
Fig. 2 is the structural representation of another embodiment of metallurgical off-gas acid-making waste water treatment system of the present utility model;
Fig. 3 is the structural representation of the supergravity reactor in metallurgical off-gas acid-making waste water treatment system of the present utility model;
Fig. 4 is the reaction liquid flow schematic diagram of the supergravity reactor inside in Fig. 3;
Fig. 5 is the partial enlarged drawing that the liquid-inlet pipe of the supergravity reactor in Fig. 3 connects;
Fig. 6 is the partial enlarged drawing of another embodiment of connecting of the liquid-inlet pipe of the supergravity reactor in Fig. 3.
Embodiment
In order better to understand the purpose of this utility model, structure and function, below in conjunction with accompanying drawing, a kind of metallurgical off-gas acid-making waste water treatment system of the present utility model is done to further detailed description.
Following examples are that to process the metallurgical off-gas acid-making waste water of discharging in copper smelting acid making system be example, wherein, in this waste water, mainly contain copper, arsenic plasma, handling principle is to make copper in waste water, arsenic plasma and sodium sulfide generation chemical reaction produce precipitation, then through dense, press filtration, removes.
As shown in Figure 1, metallurgical off-gas acid-making waste water treatment system of the present utility model comprises wastewater storage tank 1 and medicament storage tank 2, wastewater storage tank 1 is for placing heavy metal wastewater thereby (as copper, arsonium ion waste water), medicament storage tank 2 is for placing the treatment agent (as sodium sulphite) after dissolving, wherein, wastewater storage tank 1 and medicament storage tank 2 are communicated with supergravity reactor 7, and the liquid medicine in the heavy metal wastewater thereby in wastewater storage tank 1 and medicament storage tank 2 reacts in supergravity reactor 7.
Specifically, wastewater storage tank 1 in the present embodiment is connected with the entrance of the first ejector 4, and between wastewater storage tank 1 and the entrance of the first ejector 4, be provided with pump 3, the heavy metal in wastewater storage tank 1 (copper, arsenic) waste water enters in the first ejector 4 under the effect of pump 3.Medicament storage tank 2 is connected with the negative pressure suction port of the first ejector 4, and be also provided with pump 3 between medicament storage tank 2 and the negative pressure suction port of the first ejector 4, liquid medicine in medicament storage tank 2 (sodium sulfide solution) enters into the first ejector 4 under the effect of pump 3, thereby realize heavy metal (copper, arsenic) waste water in the first ejector 4, mixes with liquid medicine (sodium sulfide solution).It should be noted, the ejector in the utility model is ejector form conventional in this area, and concrete structure no longer describes in detail.
Further, as shown in Figure 1, the outlet of the first ejector 4 is connected with supergravity reactor 7, and in the first ejector 4, mixed heavy metal wastewater thereby and liquid medicine enter into supergravity reactor 7, and realizes fully reacting of medicament and heavy metal wastewater thereby supergravity reactor 7 is interior.
Referring to Fig. 3, in supergravity reactor 7 in the utility model, be provided with reactor rotor 8, on reactor rotor 8, be provided with and rotate centrifugal network 9, be specially to be wound around on the excircle of reactor rotor 8 and multilayer is set rotates centrifugal network 9, to make medicament can rotate in centrifugal network 9 and fully react in multilayer with the mixed solution of heavy metal wastewater thereby.Wherein, in the supergravity reactor 7 of the present embodiment, be provided with two liquid-inlet pipes 12, and two liquid-inlet pipes 12 are over against the both sides that are arranged on reactor rotor 8, liquid-inlet pipe 12 is connected with the outlet of the first ejector 4, for mixed heavy metal (copper, arsenic) waste water and liquid medicine (sodium sulfide solution) are transported to supergravity reactor 7.
The form that arranges about liquid-inlet pipe 12 in supergravity reactor 7 can be specifically shown in Figure 5, wherein, reactor rotor 8 has rotating shaft 15, one end of rotating shaft 15 is fixedly connected with (can select the modes such as welding) with the rotor sidewall 81 of reactor rotor 8, be used for driving whole reactor rotor 8 rotations, the other end of rotating shaft 15 is connected with synchronizing wheel 18 through the housing 71 of supergravity reactor 7, thus, the power-equipment (not shown) that can connect by synchronizing wheel 18 drives synchronizing wheel 18, rotating shaft 15 to rotate together, thus the predetermined rotation of realization response device rotor 8.
It should be noted, the rotating shaft 15 of the reactor rotor 8 in the present embodiment is hollow structure, and the liquid-inlet pipe 12 of supergravity reactor 7 is arranged on the inside of rotating shaft 15, and the end of liquid-inlet pipe 12 extends into the inside of reactor rotor 8, for guaranteeing that liquid-inlet pipe 12 is in the location of rotating shaft 15 inside, between liquid-inlet pipe 12 and rotating shaft 15, be provided with bearing 17, be preferably spot contact bearing.In addition, for preventing that reaction liquid from oozing out supergravity reactor 7 from rotating shaft 15 and liquid-inlet pipe 12, between the housing 71 of rotating shaft 15, liquid-inlet pipe 12 and supergravity reactor 7, be provided with sealing member 16, and preferably, outside at the synchronizing wheel 18 being connected with rotating shaft 15 also can be provided with mechanical seal 19, to strengthen the sealing effectiveness of supergravity reactor 7.
Further, the end that extends to the liquid-inlet pipe 12 of reactor rotor 8 inside is provided with atomizer 13, during operation, shown in Figure 4, the mixed heavy metal being transported by the first ejector 4 (copper, arsenic) waste water and liquid medicine (sodium sulfide solution) become vaporific ejection by atomizer 13.In the present embodiment over against the 12 pairs of sprays of liquid-inlet pipe that are arranged on reactor rotor 8 both sides, make atomized liquid enter relative to colliding rear steering rotating in centrifugal network 9 of arranging on reactor rotor 8, thereby make heavy metal (copper, arsenic) waste water and liquid medicine (sodium sulfide solution) rotating fully reaction on centrifugal network 9, greatly improved processing efficiency.It should be noted, be provided with two liquid-inlet pipes 12 in the supergravity reactor 7 due to the present embodiment, therefore as shown in Figure 1, the outlet of the first ejector 4 is connected respectively with two liquid-inlet pipes 12 in supergravity reactor 7 by T-valve 6.
In addition, distance between atomizer 13 in the present embodiment on two liquid-inlet pipes 12 is according to the difference of supergravity reactor 7 processing poweies, can select to be set to 60mm to 1000mm, and according to the difference for the treatment of scale, the diameter of reactor rotor 8 can be selected to be set to 300mm to 2000mm, and optional the selecting in mesh aperture of the rotation centrifugal network 9 arranging on reactor rotor 8 is set to 0.02mm to 1.75mm.
Further, the form that arranges of the liquid-inlet pipe 12 of the supergravity reactor 7 in the utility model also can be as shown in Figure 6, wherein, reactor rotor 8 has rotating shaft 15, one end of rotating shaft 15 is fixedly connected with (can select the modes such as welding) with the rotor sidewall 81 of reactor rotor 8, be used for driving whole reactor rotor 8 rotations, the other end of rotating shaft 15 is connected with synchronizing wheel 18 through the housing 71 of supergravity reactor 7, thus, the power-equipment (not shown) that can connect by synchronizing wheel 18 drives synchronizing wheel 18, rotating shaft 15 is rotated together, thereby the predetermined rotation of realization response device rotor 8.
It should be noted, the rotating shaft 15 of the reactor rotor 8 in the present embodiment is hollow structure, liquid can directly be passed through in inside, and one end that rotating shaft 15 is connected with rotor sidewall 81 extends into the inside of reactor rotating shaft 8, the other end being connected with synchronizing wheel 18 stretches out and is connected by mechanical seal 19 with liquid-inlet pipe 12, preferably, the end of liquid-inlet pipe 12 is the stationary ring of mechanical seal 19, and the end of rotating shaft 15 is the rotating ring of mechanical seal 19.Thus, reaction liquid can enter into rotating shaft 15 inside by liquid-inlet pipe 12, and ejects by the end that rotating shaft 15 extends into reactor rotor 8 inside, and preferably, this end of rotating shaft 15 is provided with atomizer 13.In addition,, for preventing that reaction liquid from oozing out supergravity reactor 7 from rotating shaft 15, between rotating shaft 15 and the housing 71 of supergravity reactor 7, be provided with sealing member 16.
Still referring to Fig. 3, the bottom of the supergravity reactor 7 in the utility model is provided with liquid exit 14, wherein, liquid exit 14 is connected with container for storing liquid 10, in supergravity reactor 7, reacted liquid can enter into container for storing liquid 10 by liquid exit 14, to carry out the processing such as follow-up filtration, precipitation.In addition, referring to Fig. 1, on the container for storing liquid 10 in the present embodiment, be formed with gas recovery mouth 11, for reclaiming reacted gas (hydrogen sulfide), to prevent the leakage of gas.
Specifically, between the first ejector 1 and supergravity reactor 7, be provided with the second ejector 5, wherein, the entrance of the second ejector 5 is connected with the outlet of the first ejector 1, the outlet of the second ejector 5 is connected with supergravity reactor 7 (be specially by T-valve 6 and be connected with two liquid-inlet pipes 12 in supergravity reactor 7), and the negative pressure suction port of the second ejector 5 is connected with the gas recovery mouth 11 on container for storing liquid 10.Thus, reactant gases (hydrogen sulfide) remaining in container for storing liquid 10 can be transported in the second ejector 5 by gas recovery mouth 11, and mix with heavy metal (copper, arsenic) waste water, liquid medicine (sodium sulfide solution) in the second ejector 5, thereby realized the recovery of residual gas, prevented the generation of gas leakage accidents.
Below in conjunction with Fig. 1 and Fig. 3, the concrete operation step of metallurgical off-gas acid-making waste water treatment system of the present utility model is further described:
First, by the pump 3 between wastewater storage tank 1 and the first ejector 4, will after the heavy metal wastewater thereby pressurization in wastewater storage tank 1, be delivered to the first ejector 4, by the pump 3 between medicament storage tank 2 and the first ejector 4, the sodium sulphite liquid after dissolving is also delivered to the first ejector 4 from medicament storage tank 2 simultaneously, thereby sodium sulfide solution is mixed in the first ejector 4 with heavy metal wastewater thereby.
Secondly, mixed liquid in the first ejector 4 (sodium sulfide solution and heavy metal wastewater thereby) enters into the second ejector 5, remaining hydrogen sulfide in container for storing liquid 10 is delivered in the second ejector 5 by gas recovery mouth 11, in the second ejector 5, the hydrogen sulfide from container for storing liquid 10 is blended in mixed solution thus.
Then, by the latter linked T-valve 6 of the second ejector 5, mixed solution is divided into two-way, enter into respectively supergravity reactor 7 over against two liquid-inlet pipes 12 that arrange, and will after mixed solution atomization, be injected in the reactor rotor 8 of supergravity reactor 7 inside by the atomizer 13 of liquid-inlet pipe 12 ends, the mixed solution of atomization enters into after turning to and rotates centrifugal network 9 relative to collision in reactor rotor 8, and in rotation centrifugal network 9, realizes fully reacting of sodium sulfide solution and heavy metal wastewater thereby.
Finally, in supergravity reactor 7, reacted liquid flow in container for storing liquid 10 by liquid exit 14, to carry out follow-up processing, in container for storing liquid 10, remaining hydrogen sulfide enters into the second ejector 5 by the gas recovery mouth 11 on container for storing liquid 10 and realizes recovery.
The features such as metallurgical off-gas acid-making waste water treatment system of the present utility model adopts novel mass transfer technology, has mass transfer separation efficiency high, and equipment volume is little, and operating maintenance is convenient, are particularly suitable for using in height, two-by-twice occasion.In addition, when equipment volume reduces, also effectively raise reaction efficiency, reduced chemical feeding quantity, prevented that the leakage ，Wei enterprise of hydrogen sulfide from greatly reducing the spending of environmental protection treatment.
Fig. 2 shows the structural representation of another embodiment of metallurgical off-gas acid-making waste water treatment system of the present utility model.Wherein, the heavy metal wastewater thereby in wastewater storage tank 1 and the liquid medicine in medicament storage tank 2 are realized mixing in supergravity reactor 7.
Specifically, wastewater storage tank 1 is directly connected with the entrance of the second ejector 5, and be provided with pump 3 between wastewater storage tank 1 and the entrance of the second ejector 5, the outlet of the second ejector 5 is connected with a liquid-inlet pipe 12 in supergravity reactor 7, and the negative pressure suction port of the second ejector 5 is still connected with the gas recovery mouth 11 on container for storing liquid 10.Medicament storage tank 2 is directly connected with the other liquid-inlet pipe 12 in supergravity reactor 7, and be provided with equally pump 3 between the liquid-inlet pipe 12 in medicament storage tank 2 and supergravity reactor 7.
Thus, as shown in Figure 2, during the operation of the metallurgical off-gas acid-making waste water treatment system of the present embodiment:
First, by the pump 3 between wastewater storage tank 1 and the second ejector 5, will after the heavy metal wastewater thereby pressurization in wastewater storage tank 1, be delivered in the second ejector 5, remaining hydrogen sulfide in container for storing liquid 10 is delivered in the second ejector 5 by gas recovery mouth 11, in the second ejector 5, the hydrogen sulfide from container for storing liquid 10 is blended in the heavy metal wastewater thereby from wastewater storage tank 1 thus.
Then, the heavy metal wastewater thereby that is mixed with hydrogen sulfide enters into a liquid-inlet pipe 12 of supergravity reactor 7 from the second ejector 5, and spray after atomizer 13 atomizations by liquid-inlet pipe 12 ends, simultaneously, by the pump 3 between the liquid-inlet pipe 12 in medicament storage tank 2 and supergravity reactor 7, the sodium sulphite liquid after dissolving is directly delivered in the other liquid-inlet pipe 12 in supergravity reactor 7 from medicament storage tank 2, and sprays after atomizer 13 atomizations by liquid-inlet pipe 12 ends.Because heavy metal wastewater thereby sprays respectively by relative atomizer 13 with sodium sulphite liquid, thereby realized mixing of heavy metal wastewater thereby and sodium sulfide solution, and the heavy metal wastewater thereby of atomization and sodium sulfide solution can enter into after colliding and turning to and rotate centrifugal network 9, and in rotating centrifugal network 9, realize fully reacting of sodium sulfide solution and heavy metal wastewater thereby in reactor rotor 8.
Finally, in supergravity reactor 7, reacted liquid flow in container for storing liquid 10 by liquid exit 14, to carry out follow-up processing, in container for storing liquid 10, remaining hydrogen sulfide enters into the second ejector 5 by the gas recovery mouth 11 on container for storing liquid 10 and realizes recovery.
To sum up, during practical application, in acidity, be 10%, rotating speed is 400r/min-800r/min, when liquid ratio is 100:1, in water, temperature is 40 ℃ of-50 ℃ of left and right, and the arsenic removal rate in sour water can reach more than 98%, compare with the treatment process of current sour water, when having improved efficiency, prevented the leakage of hydrogen sulfide.
By specific embodiment, the utility model is further described above; but it should be understood that; here concrete description; should not be construed as the restriction to essence of the present utility model and scope; one of ordinary skilled in the art, reading the various modifications of after this specification sheets, above-described embodiment being made, belongs to the scope that the utility model is protected.
Claims (10)
1. a metallurgical off-gas acid-making waste water treatment system, is characterized in that, comprises
Wastewater storage tank (1), for depositing heavy metal wastewater thereby;
Medicament storage tank (2), for depositing the liquid medicine reacting with heavy metal wastewater thereby;
Supergravity reactor (7), is communicated with wastewater storage tank (1) and medicament storage tank (2), and the liquid medicine in the heavy metal wastewater thereby in wastewater storage tank (1) and medicament storage tank (2) reacts in supergravity reactor (7);
Container for storing liquid (10), is connected with the liquid exit (14) of supergravity reactor (7), and in supergravity reactor (7), reacted liquid is discharged in container for storing liquid (10) by liquid exit (14).
2. metallurgical off-gas acid-making waste water treatment system according to claim 1, it is characterized in that, in supergravity reactor (7), be provided with reactor rotor (8), on reactor rotor (8), be provided with and rotate centrifugal network (9), the liquid-inlet pipe (12) of supergravity reactor (7) is over against the both sides that are arranged on reactor rotor (8), reaction liquid collision after liquid-inlet pipe (12) ejection over against arranging turns to enter rotates in centrifugal network (9), in rotating centrifugal network (9), reacts.
3. metallurgical off-gas acid-making waste water treatment system according to claim 2, it is characterized in that, reactor rotor (8) has rotating shaft (15), one end of rotating shaft (15) is connected with rotor sidewall (81), the other end is connected with transmission mechanism through the housing (71) of supergravity reactor (7), rotating shaft (15) is hollow structure, liquid-inlet pipe (12) is arranged on the inside of rotating shaft (15), and the end of liquid-inlet pipe (12) extends into the inside of reactor rotor (8), the end of liquid-inlet pipe (12) is provided with atomizer (13).
4. metallurgical off-gas acid-making waste water treatment system according to claim 2, it is characterized in that, reactor rotor (8) has rotating shaft (15), one end of rotating shaft (15) is connected with rotor sidewall (81), the other end is connected with transmission mechanism through the housing (71) of supergravity reactor (7), rotating shaft (15) is hollow structure, and one end that rotating shaft (15) is connected with transmission mechanism and liquid-inlet pipe (12) are tightly connected, the other end that rotating shaft (15) is connected with rotor sidewall (81) extends into the inside of reactor rotor (8), the end that rotating shaft (15) is arranged in reactor rotor (8) is provided with atomizer (13).
5. metallurgical off-gas acid-making waste water treatment system according to claim 2, it is characterized in that, wastewater storage tank (1) is connected with the first ejector (4) respectively with medicament storage tank (2), the outlet of the first ejector (4) is connected with the liquid-inlet pipe (12) of supergravity reactor (7), and the liquid medicine in the heavy metal wastewater thereby in wastewater storage tank (1) and medicament storage tank (2) mixes in the first ejector (4).
6. metallurgical off-gas acid-making waste water treatment system according to claim 5, is characterized in that, between wastewater storage tank (1) and medicament storage tank (2) and the first ejector (4), is respectively arranged with pump (3).
7. metallurgical off-gas acid-making waste water treatment system according to claim 5, it is characterized in that, between the liquid-inlet pipe (12) of the outlet of the first ejector (4) and supergravity reactor (7), be provided with the second ejector (5), on container for storing liquid (10), be formed with gas recovery mouth (11), gas recovery mouth (11) is connected with the second ejector (5), and gas remaining in container for storing liquid (10) is blended in the mixed solution of heavy metal wastewater thereby and liquid medicine in the second ejector (5).
8. metallurgical off-gas acid-making waste water treatment system according to claim 2, it is characterized in that, wastewater storage tank (1) is connected with the liquid-inlet pipe (12) of reactor rotor (8) one sides in supergravity reactor (7), medicament storage tank (2) is connected with the liquid-inlet pipe (12) of reactor rotor (8) opposite side, and the liquid medicine in the heavy metal wastewater thereby in wastewater storage tank (1) and medicament storage tank (2) mixes after being sprayed by liquid-inlet pipe (12) in supergravity reactor (7).
9. metallurgical off-gas acid-making waste water treatment system according to claim 8, it is characterized in that, between the liquid-inlet pipe (12) of wastewater storage tank (1) and supergravity reactor (7), be provided with the second ejector (5), on container for storing liquid (10), be formed with gas recovery mouth (11), gas recovery mouth (11) is connected with the second ejector (5), and gas remaining in container for storing liquid (10) is blended in heavy metal wastewater thereby in the second ejector (5).
10. metallurgical off-gas acid-making waste water treatment system according to claim 9, it is characterized in that, between wastewater storage tank (1) and the second ejector (5) medicament storage tank (2), be provided with pump (3), between the first ejector (4) and the liquid-inlet pipe (12) of supergravity reactor (7), be provided with pump (3).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103288199A (en) * | 2013-06-27 | 2013-09-11 | 兰州捷晖生物环境工程有限公司 | Smelting gas acid-production wastewater treatment system |
| CN104692579A (en) * | 2015-02-16 | 2015-06-10 | 桂林奥尼斯特节能环保科技有限责任公司 | Advanced recycling method for wastewater generated in making acid by using smelting flue gas |
| JP2019135036A (en) * | 2018-02-05 | 2019-08-15 | 住友金属鉱山株式会社 | Treatment method of waste acid generated in copper smelting |
| CN116514196A (en) * | 2023-05-31 | 2023-08-01 | 昆明理工大学 | Soil groundwater treatment pipe chute and installation method thereof |
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2013
- 2013-06-27 CN CN201320378109.XU patent/CN203402948U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103288199A (en) * | 2013-06-27 | 2013-09-11 | 兰州捷晖生物环境工程有限公司 | Smelting gas acid-production wastewater treatment system |
| CN104692579A (en) * | 2015-02-16 | 2015-06-10 | 桂林奥尼斯特节能环保科技有限责任公司 | Advanced recycling method for wastewater generated in making acid by using smelting flue gas |
| CN104692579B (en) * | 2015-02-16 | 2016-06-01 | 桂林奥尼斯特节能环保科技有限责任公司 | A kind of method of metallurgical off-gas acid-making waste water resource utilization advanced treatment |
| JP2019135036A (en) * | 2018-02-05 | 2019-08-15 | 住友金属鉱山株式会社 | Treatment method of waste acid generated in copper smelting |
| JP7073759B2 (en) | 2018-02-05 | 2022-05-24 | 住友金属鉱山株式会社 | Treatment method of waste acid generated in copper smelting |
| CN116514196A (en) * | 2023-05-31 | 2023-08-01 | 昆明理工大学 | Soil groundwater treatment pipe chute and installation method thereof |
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