CN218358426U - Gaseous innocent treatment system of microbial oxidation groove - Google Patents
Gaseous innocent treatment system of microbial oxidation groove Download PDFInfo
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- CN218358426U CN218358426U CN202221903735.1U CN202221903735U CN218358426U CN 218358426 U CN218358426 U CN 218358426U CN 202221903735 U CN202221903735 U CN 202221903735U CN 218358426 U CN218358426 U CN 218358426U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The utility model belongs to the technical field of gas innocent treatment devices, in particular to a gas innocent treatment system of a microorganism oxidation tank; wherein the gas collecting top is fixed on the top of the microbial oxidation tank and is connected with a pipeline condenser through a pipeline, the pipeline condenser is connected with an acidic gas-liquid separator through a pipeline, the acidic gas-liquid separator is connected with an oxidizing liquid storage and elimination tank through a pipeline, the acidic gas-liquid separator is connected with an acid gas absorption tower through a pipeline, and the oxidizing liquid storage and elimination tank is connected with the microbial oxidation tank through a pump; the acid gas absorption tower is connected with an absorption liquid storage tank through a pipeline, the absorption liquid storage tank is connected with the acid gas absorption tower through a pump, and the acid gas absorption tower is connected with a secondary gas-liquid separator through a pipeline; the secondary gas-liquid separator is connected with the absorption liquid storage tank through a pipeline, and the secondary gas-liquid separator is connected with the negative pressure draught fan through a pipeline; the utility model discloses can solve the problem that a large amount of sour gas that the oxidation groove blows off and spills over influences the environment, can collect a large amount of foams that the microorganism metabolite produced simultaneously, guarantee normal production.
Description
Technical Field
The utility model belongs to the technical field of gaseous innocent treatment device, concretely relates to gaseous innocent treatment system in microbial oxidation groove.
Background
The biological oxidation gold extraction technology is characterized in that microorganisms in the nature are utilized, ore leaching strains which are thiophilic and ferric are preferably selected, and under the appropriate environment, the direct action of metabolism of the microorganisms or the indirect action of metabolites are utilized to oxidize and decompose sulfide ore matrixes, so that harmful components such as pyrite, arsenopyrite and the like which wrap gold are damaged, and the gold is fully exposed. The process of treating refined gold by microbial oxygen comprises the following steps:
4FeSO4+2H2SO4+O2→2Fe2(SO4)3+2H2O
4FeS2+2H2O+15O2→2Fe2(SO4)3+2H2SO4
FeS2+Fe2(SO4)3→3FeSO4+2S
2FeAsS+H2SO4+2H2O+7O2→Fe2(SO4)3+2H3AsO4
2FeAsS+Fe2(SO)4 3+H2O+6O2→4FeSO4+H2SO4+2H3AsO4
as can be seen from the above chemical reaction equation, a large amount of O is required for the sulfide oxidation in the oxidation tank 2 While the high rate of oxidation results in a high rate of oxygen consumption. In the production process, if the oxygen concentration of the gas filled in the ore pulp is lower than 8 percent, the growth of bacteria is limited, thereby ensuring the oxidation ventilation as much as possible, keeping the oxygen content in the solution at 4mg/L, ensuring the air in the bioreactor to be uniformly dispersed, ensuring the optimal temperature oxidation temperature for the oxidation gold extraction of microorganisms at 45 to 53 ℃, ensuring the acid environment with the highest activity of autotrophic bacteria, namely the optimal pH value at 1.0 to 1.5. The process belongs to exothermic reaction, and a large amount of acid gas carrying sulfuric acid in the production process passes through a biological oxidation tankBlowing off and overflowing; meanwhile, the foaming property of microbial bacteria metabolites in the biological oxidation slag is easy to cause groove overflow accidents, and the normal operation and production are influenced.
Disclosure of Invention
In order to overcome the problem, the utility model provides a gaseous innocent treatment system in microbial oxidation groove for the microbial oxidation carries the harmless processing that gaseous is blown off in the oxidation of biological oxidation groove among the gold technology, in order to solve the biological oxidation and carry the gold technology in the oxidation groove blow off spill over a large amount of sour gas influence environment's problem, can collect a large amount of foams that the microbial metabolism thing produced simultaneously, guarantee normal production.
A kind of microorganism oxidizes the innocent treatment system of the trough gas, including microorganism oxidizes the trough 1, the pipeline condenser 2, the acid gas-liquid separator 3, the oxidation liquid stores and disappears the tank 4, the acid gas absorption tower 5, the absorbed liquid storage tank 6, the second-class gas-liquid separator 7, the process circulating pump 8, draught fan 9 and gas collection top 10, wherein the gas collection top 10 is fixed on the top of microorganism oxidizes the trough 1, and the gas collection top 10 is connected with air inlet pipeline of the pipeline condenser 2, the outlet of the pipeline condenser 2 is connected with 3 inlet pipelines of the acid gas-liquid separator, the liquid outlet of the acid gas-liquid separator 3 is connected with liquid inlet pipeline of the oxidation liquid stores and disappears the tank 4, the gas outlet of the acid gas-liquid separator 3 is connected with air inlet pipeline of the acid gas absorption tower 5, the liquid outlet of the oxidation liquid stores and disappears tank 4 and connects with microorganism oxidizes the trough 1 through the process circulating pump 8; the liquid outlet of the acid gas absorption tower 5 is connected with an inlet pipeline on the left side of an absorption liquid storage tank 6, the liquid outlet of the absorption liquid storage tank 6 is connected with a spraying pipe orifice of the acid gas absorption tower 5 through a process circulating pump 8, and the gas outlet of the acid gas absorption tower 5 is connected with an inlet pipeline of a secondary gas-liquid separator 7; the liquid outlet of the second-stage gas-liquid separator 7 is connected with the inlet pipeline on the right side of the absorption liquid storage tank 6, and the gas outlet of the second-stage gas-liquid separator 7 is connected with the negative pressure draught fan 9 through a pipeline.
The microorganism oxidation tank 1 comprises a tank body 11, a stirring mechanism 12 and a blast aerator 13, wherein a gas collecting roof 10 is fixed at the top of the tank body 11, the blast aerator 13 penetrates through the gas collecting roof 10 and then extends into the lower part in the tank body 11, and the stirring mechanism 12 penetrates through the gas collecting roof 10 and then extends into the lower part in the tank body 11 and is fixed on the gas collecting roof 10.
And a liquid outlet of the oxidation liquid storage and elimination tank 4 is communicated with the interior of a tank body 11 of the microorganism oxidation tank 1 through a process circulating pump 8.
The acid gas absorption tower 5 and the absorption liquid storage tank 6 are provided in plurality according to the amount of the acid gas.
The utility model has the advantages that:
the utility model discloses perfecting microorganism oxidation and carrying gold technology, having solved the problem that microorganism oxidation groove industrial production unorganized acid gas outdoor emission, avoided causing the pollution and harmful gas to destroy ecological environment to the environment, realized green when having ensured that the enterprise accomplishes economic objective and produced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the present invention
1-a microbial oxidation tank; 11-a tank body; 12-a stirring mechanism; 13-blast aerator; 2-pipeline condenser; 3-acid gas-liquid separator; 4-oxidation liquid storage and elimination tank; 5-acid gas absorption tower; 6-absorption liquid storage tank; 7-two-stage gas-liquid separator; 81/82-process circulation pump; 9-a draught fan; and 10, collecting a gas cap.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example 1
As shown in fig. 1, a harmless treatment system for a gas in a microbial oxidation tank comprises a microbial oxidation tank 1, a pipeline condenser 2, an acid gas-liquid separator 3, an oxidation liquid storage and elimination tank 4, an acid gas absorption tower 5, an absorption liquid storage tank 6, a secondary gas-liquid separator 7, a process circulating pump 8, an induced draft fan 9 and a gas collection top 10, wherein the gas collection top 10 is fixed at the top of the microbial oxidation tank 1, the gas collection top 10 is connected with a gas inlet pipeline of the pipeline condenser 2, an outlet of the pipeline condenser 2 is connected with an inlet pipeline of the acid gas-liquid separator 3, a liquid outlet of the acid gas-liquid separator 3 is connected with a liquid inlet pipeline of the oxidation liquid storage and elimination tank 4, a gas outlet of the acid gas-liquid separator 3 is connected with a gas inlet pipeline of the acid gas absorption tower 5, and a liquid outlet of the oxidation liquid storage and elimination tank 4 is connected with the microbial oxidation tank 1 through the process circulating pump 8; a liquid outlet of the acid gas absorption tower 5 is connected with a left inlet pipeline of an absorption liquid storage tank 6, a liquid outlet of the absorption liquid storage tank 6 is connected with a spraying pipe opening of the acid gas absorption tower 5 through a process circulating pump 8, and a gas outlet of the acid gas absorption tower 5 is connected with an inlet pipeline of a secondary gas-liquid separator 7; the liquid outlet of the second-stage gas-liquid separator 7 is connected with the right inlet pipeline of the absorption liquid storage tank 6, and the gas outlet of the second-stage gas-liquid separator 7 is connected with a negative pressure draught fan 9 through a pipeline.
The microorganism oxidation tank 1 comprises a tank body 11, a stirring mechanism 12 and a blast aerator 13, wherein a gas collecting roof 10 is fixed at the top of the tank body 11, the blast aerator 13 penetrates through the gas collecting roof 10 and then extends into the lower part in the tank body 11, and the stirring mechanism 12 penetrates through the gas collecting roof 10 and then extends into the lower part in the tank body 11 and is fixed on the gas collecting roof 10.
And a liquid outlet of the oxidation liquid storage and elimination tank 4 is communicated with the interior of a tank body 11 of the microorganism oxidation tank 1 through a process circulating pump 8. The liquid outlet of the oxidation liquid storage tank 4 is connected with one end of a process circulating pump 8 through a pipeline, the other end of the process circulating pump 8 is communicated with the inside of the tank body 11 through a pipeline, and the pipeline penetrates through the gas collecting roof 10 and then extends into the tank body 11.
The acid gas absorption tower 5 and the absorption liquid storage tank 6 are arranged in plurality according to the amount of the acid gas.
Example 2
Referring to fig. 1, the present invention comprises a microorganism oxidation tank 1, a pipeline condenser 2, an acid gas-liquid separator 3, an oxidation liquid storage tank 4, an acid gas absorption tower 5, an absorption liquid storage tank 6, a secondary gas-liquid separator 7, a process circulation pump (81/82), and a draught fan 9. The microbial oxidation tank 1 comprises a tank body 11, a stirring mechanism 12, a blast aerator 13 and a gas collection top 10, wherein the blast aerator 13 is positioned at the bottom of the stirring mechanism (12), and the gas collection top 10 is arranged at the top of the tank body 11; wherein the gas collection top 10 of the microorganism oxidation tank 1 is sequentially connected with a pipeline condenser 2 and an acid gas-liquid separator 3 through pipelines; a liquid outlet of the acid gas-liquid separator 3 is connected with the oxidation liquid storage and elimination tank 4 through a pipeline, a gas outlet of the acid gas-liquid separator 3 is connected with a gas inlet end of the acid gas absorption tower 5 through a pipeline, and a liquid outlet of the oxidation liquid storage and elimination tank 4 is connected with a tank body 11 of the microorganism oxidation tank 1 through a pipeline and a process circulating pump 8; a liquid outlet at the bottom of the acid gas absorption tower 5 is connected with an absorption liquid storage tank 6 through a pipeline, a liquid outlet of the absorption liquid storage tank 6 returns to a spraying pipe orifice of the acid gas absorption tower 5 through a process circulating pump 8, and a gas outlet at the top of the acid gas absorption tower 5 is connected with a secondary gas-liquid separator 7 through a pipeline; a liquid outlet of the second-stage gas-liquid separator 7 is connected with the absorption liquid storage tank 6 through a pipeline, and a gas outlet of the second-stage gas-liquid separator 7 is connected with a negative pressure draught fan 9 through a pipeline. The acid gas absorption tower 5 and the absorption liquid storage tank 6 can be arranged in a multistage manner according to the acid gas amount.
The utility model discloses the working process:
under the working state of the microbial oxidation tank 1, an air blower supplies air into the tank body 11 through the blast aerator 13, the pretreatment gold extraction process of the microbial oxidation tank 1 is realized under the action of the stirring mechanism 12, but a large amount of gas can be blown off and overflow ore pulp, the tank body 11 is sealed by the gas collecting roof 10 for gas collection, and simultaneously, the negative pressure draught fan 9 is started, the negative pressure induced air quantity is slightly larger than the gas supply quantity of the blast aerator 13, so that the tank body 11 is ensured to blow off and overflow acid gas and all the negative pressure is led out;
because the induced air volume is large, a large amount of foam and oxidation liquid escape along with the gas in the tank body (11) in a closed environment, a physical method of condensation of a pipeline condenser 2 and gas-liquid centrifugal separation is adopted for gas-liquid separation, acidification liquid with a large amount of micro bubbles separated from the bottom of an acid gas-liquid separator 3 enters an oxidation liquid storage and elimination tank 4 for secondary defoaming, a certain amount of defoaming agent can be added into the oxidation liquid storage and elimination tank 4 for defoaming, and the defoamed acidification liquid returns to the microbial oxidation tank 1 again through a process circulating pump 8;
the acid gas separated by the acid gas-liquid separator 3 is introduced into an acid gas absorption tower 5 for neutralization and absorption, the absorption liquid can be prepared by sodium hydroxide, lime or carbide slag and the like, the absorption liquid after absorbing the acid gas returns to an absorption liquid storage tank 6, the spraying absorption of the acid gas absorption tower 5 is completed through the circulating action of a process circulating pump 8, and the precipitation generated by the acid gas absorption reaction is settled in the absorption liquid storage tank 6;
and the gas after the acid gas absorption tower 5 finishes purification and absorption is subjected to gas-liquid separation again by adopting a gas-liquid separation physical method of the secondary gas-liquid separator 7, then the purified gas is discharged through the induced draft fan 9, and the absorption liquid separated from the bottom of the secondary gas-liquid separator 7 flows back to the absorption liquid storage tank 6.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the protection scope of the present invention is not limited to the details of the above embodiments, and within the technical concept of the present invention, any person skilled in the art is within the technical scope of the present invention, and according to the technical solution of the present invention and the inventive concept thereof, equivalent replacement or change is made, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (4)
1. A microbial oxidation tank gas innocent treatment system is characterized by comprising a microbial oxidation tank (1), a pipeline condenser (2), an acid gas-liquid separator (3), an oxidation liquid storage and elimination tank (4), an acid gas absorption tower (5), an absorption liquid storage tank (6), a secondary gas-liquid separator (7), a process circulating pump (8), an induced draft fan (9) and a gas collection top (10), wherein the gas collection top (10) is fixed at the top of the microbial oxidation tank (1), the gas collection top (10) is connected with a gas inlet pipeline of the pipeline condenser (2), an outlet of the pipeline condenser (2) is connected with an inlet pipeline of the acid gas-liquid separator (3), a liquid outlet of the acid gas-liquid separator (3) is connected with a liquid inlet pipeline of the oxidation liquid storage and elimination tank (4), a gas outlet of the acid gas-liquid separator (3) is connected with a gas inlet pipeline of the acid gas absorption tower (5), and a liquid outlet of the oxidation liquid storage and elimination tank (4) is connected with the microbial oxidation tank (1) through the process circulating pump (8); the liquid outlet of the acid gas absorption tower (5) is connected with an inlet pipeline on the left side of the absorption liquid storage tank (6), the liquid outlet of the absorption liquid storage tank (6) is connected with a spraying pipe orifice of the acid gas absorption tower (5) through a process circulating pump (8), and the gas outlet of the acid gas absorption tower (5) is connected with an inlet pipeline of the secondary gas-liquid separator (7); the liquid outlet of the second-stage gas-liquid separator (7) is connected with the inlet pipeline on the right side of the absorption liquid storage tank (6), and the gas outlet of the second-stage gas-liquid separator (7) is connected with the negative pressure draught fan (9) through a pipeline.
2. The microbial oxidation tank gas innocent treatment system according to claim 1, wherein the microbial oxidation tank (1) comprises a tank body (11), a stirring mechanism (12) and a blast aerator (13), wherein a gas collection roof (10) is fixed at the top of the tank body (11), the blast aerator (13) penetrates through the gas collection roof (10) and then extends into the lower part of the inside of the tank body (11), and the stirring mechanism (12) penetrates through the gas collection roof (10) and then extends into the lower part of the inside of the tank body (11) and is fixed on the gas collection roof (10).
3. The system for harmless treatment of gas in a microbial oxidation tank as claimed in claim 2, wherein a liquid outlet of the oxidation liquid storage and elimination tank (4) is communicated with the interior of the tank body (11) of the microbial oxidation tank (1) through a process circulating pump (8).
4. The system for harmless treatment of gas from a microbial oxidation tank as set forth in claim 1, wherein said acid gas absorption tower (5) and said absorption liquid storage tank (6) are provided in plurality according to the amount of acid gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221903735.1U CN218358426U (en) | 2022-07-22 | 2022-07-22 | Gaseous innocent treatment system of microbial oxidation groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221903735.1U CN218358426U (en) | 2022-07-22 | 2022-07-22 | Gaseous innocent treatment system of microbial oxidation groove |
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| Publication Number | Publication Date |
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| CN218358426U true CN218358426U (en) | 2023-01-24 |
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| CN202221903735.1U Active CN218358426U (en) | 2022-07-22 | 2022-07-22 | Gaseous innocent treatment system of microbial oxidation groove |
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- 2022-07-22 CN CN202221903735.1U patent/CN218358426U/en active Active
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