CN207973618U - A kind of Flue Gas of Nonferrous Smelting purification diluted sulfric acid arsenic removing apparatus - Google Patents
A kind of Flue Gas of Nonferrous Smelting purification diluted sulfric acid arsenic removing apparatus Download PDFInfo
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- CN207973618U CN207973618U CN201820263235.3U CN201820263235U CN207973618U CN 207973618 U CN207973618 U CN 207973618U CN 201820263235 U CN201820263235 U CN 201820263235U CN 207973618 U CN207973618 U CN 207973618U
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Abstract
The utility model is related to a kind of Flue Gas of Nonferrous Smelting purification diluted sulfric acid arsenic removing apparatus, first order reaction slot A and the B series connection of first order reaction slot, first order reaction slot B is connect with concentrator, overflow launder is connected below concentrator, overflow launder is separately connected 1# filters and 2# filters by delivery pump, 1# filters connect second order reaction slot with the other end of 2# filters, the other end of second order reaction slot by delivery pump A connection 3# filters, concentrator, 1# filters, 2# filters and 3# filters bottom end be all connected with filter press.The utility model is particularly suitable for the treatment process of arsenic in Flue Gas of Nonferrous Smelting relieving haperacidity field of environment protection purification diluted sulfric acid, have the characteristics that in operation set using the device, configuration rationally, dearsenification it is efficient, it is safe to use, environmentally friendly, fully meet downstream process index, the product for solving subsequent handling from source will not become the hang-up of dangerous solid waste, with certain environmental protection and social benefit, of the same trade promote is worth to be used for reference.
Description
Technical field
The utility model is related to a kind of Flue Gas of Nonferrous Smelting purification diluted sulfric acid arsenic removing apparatus, belong to chemical technology field.
Background technology
During nonferrous smelting, it is equally known that the arsenic in raw material, after smelting, the overwhelming majority generates As2O3Into
In flue gas, after electricity gathers dust, a small amount of As2O3Equal impurity are washed down in relieving haperacidity purification, into waste acid, the As in waste acid
Content is generally up to 5000-15000mg/L, even higher.And for so high waste acid containing arsenic, if using conventional two-stage
The technique for vulcanizing arsenic removal, it is difficult to ensure that the arsenic content of liquid is in 30mg/l or less after vulcanization.Follow-up lime is bound to cause in this way to neutralize
Arsenic content in slag, gypsum tailings is more than 0.1%, is unable to reach the requirement that general solid waste recycles, and generates two subsidiary risk solid wastes
Serious consequence, environmental protection and production to enterprise bring certain pressure, no matter consider all to be not cost-effective from which aspect.Therefore anxious
Need a kind of new method to handle the arsenic in Flue Gas of Nonferrous Smelting, make the content of arsenic in liquid after vulcanization reach 30mg/l with
Under, the utility model uses a kind of Flue Gas of Nonferrous Smelting purification diluted sulfric acid arsenic removing apparatus, suitable for nonferrous smelting acid manufacturing processes
Purify the deep removal of high arsenic in spent acid, the stringent arsenic content for controlling liquid after vulcanization reaction is in 30mg/l or less, it is ensured that rear road work
Arsenic content in sequence gypsum and in slag is less than 0.1%, will not qualitative be dangerous solid waste, generate secondary pollution, really realize and recycle warp
Ji.
Invention content
A kind of Flue Gas of Nonferrous Smelting purification diluted sulfric acid arsenic removal that in order to overcome the deficiencies of the prior art, the utility model provides dress
It sets, so that the arsenic in the spent acid in nonferrous smelting acid manufacturing processes has been obtained deep removal using the device, strictly control vulcanization reaction
The arsenic content of liquid is in 30mg/l or less afterwards.
Technical solution adopted by the utility model to solve its technical problems is：A kind of Flue Gas of Nonferrous Smelting purification diluted sulfric acid removes
Arsenic device, first order reaction slot A and the B series connection of first order reaction slot, first order reaction slot B are connect with concentrator, are connected and are overflow below concentrator
Chute, overflow launder are separately connected 1# filters and 2# filters, the other end company of 1# filters and 2# filters by delivery pump A
Second order reaction slot is connect, the other end of second order reaction slot passes through delivery pump A connection 3# filters, concentrator, 1# filters, 2# filterings
The bottom end of device and 3# filters is all connected with filter press.
Spent acid containing arsenic initially enters in concatenated first order reaction slot A, B, and liquid flows automatically to concentrator after reaction, and underflow enters pressure
Filter carries out solid-liquor separation, and supernatant enters overflow launder, respectively enters 1# filters, in 2# filters by delivery pump A, again
Solid-liquor separation is carried out, underflow enters filter press, and supernatant overflow enters in second order reaction slot, and overflowing liquid passes through delivery pump after reaction
B enters in 3# filters, carries out solid-liquor separation, and underflow goes filter press, supernatant qualifying liquid to enter lower road gypsum process.
The utility model has the beneficial effects that：The utility model is particularly suitable for Flue Gas of Nonferrous Smelting relieving haperacidity field of environment protection purification
The treatment process of arsenic in diluted acid, generally conventional two-step cure arsenic removal are all used in parallel, are all vulcanization reaction slot+concentrator substantially
The arrangement of+grade one filter.Present apparatus two-step cure arsenic removal is arranged in series, is optimized for vulcanization reaction slot+concentrator+filter press
+ filter+reactive tank+filter, is equivalent to three-stage filtration, it is ensured that supernatant SS is less than 30 mg/L or less, supernatant arsenic contains
Amount rigid index below all less than 30 mg/L.All operations of the utility model are all concentrated on DCS and are realized, are owned
Index carries out constantly dynamic monitoring, and later process product arsenic content is completely secured below set quota.Have using the device
In operation set, configuration rationally, dearsenification it is efficient, it is safe to use, environmentally friendly, fully meet the features such as downstream process index.To processing
High arsenic spent acid has good effect, and the product for solving subsequent handling from source will not become the hang-up of dangerous solid waste, tool
There are certain environmental protection and social benefit, of the same trade promote is worth to be used for reference.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Figure label：
1, first order reaction slot A, 2, first order reaction slot B, 3, concentrator, 4, overflow launder, 5, delivery pump A, 6,1# filters, 7,
2# filters, 8, second order reaction slot, 9, delivery pump B, 10,3# filters.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and detailed description.
A kind of Flue Gas of Nonferrous Smelting purification diluted sulfric acid arsenic removing apparatus, first order reaction slot A1 and the B2 series connection of first order reaction slot, level-one
Reactive tank B2 is connect with concentrator 3, and concentrator 3 connects overflow launder 4 below, and overflow launder 4 is separately connected 1# mistakes by delivery pump A5
Filter 6 and 2# filters 7,1# filters 6 and the other end of 2# filters 7 connect second order reaction slot 8, second order reaction slot 8 it is another
One end by delivery pump A5 connection 3# filters 10, concentrator 3,1# filters 6,2# filters 7 and 3# filters 10 bottom end
It is all connected with filter press.
Spent acid containing arsenic initially enters in concatenated first order reaction slot A, B, vulcanized sodium reaction is added, reaction solution flows automatically to dense
In machine 3, thickener underflow enters filter press and carries out solid-liquor separation, and supernatant enters overflow launder 4, respectively enterd by delivery pump A5
In 1# filters 6,2# filters 7, solid-liquor separation is carried out again, and underflow enters filter press, and supernatant overflow enters second order reaction
In slot 8, vulcanized sodium is added and is reacted, overflowing liquid is entered by delivery pump B 9 in 3# filters 10 after reaction, is carried out liquid and is divided admittedly
From underflow goes filter press, supernatant qualifying liquid to enter lower road gypsum process.
After first order reaction using this vulcanization reaction+filter of concentrator+2, in stoste 10000mg/L- containing arsenic
In the case of 15000 mg/L, the arsenic content after reaction in supernatant is generally between 50-80mg/L;After first order reaction liquid again into
Enter vulcanization reaction slot and vulcanized sodium reaction is added, liquid is after the separation of 3# filters 10 after reaction, and supernatant arsenic content is all less than 30
Mg/L is hereinafter, even lower；The arsenic content in follow-up gypsum and in slag is tracked all less than 0.08% hereinafter, fully meeting production
With the requirement of environmental protection.
Claims (1)
1. a kind of Flue Gas of Nonferrous Smelting purification diluted sulfric acid arsenic removing apparatus, it is characterised in that：First order reaction slot A（1）With first order reaction slot B
（2）Series connection, first order reaction slot B（2）With concentrator（3）Connection, concentrator（3）Overflow launder is connected below（4）, overflow launder（4）It is logical
Cross delivery pump A（5）It is separately connected 1# filters（6）With 2# filters（7）, 1# filters（6）With 2# filters（7）The other end
Connect second order reaction slot（8）, second order reaction slot（8）The other end pass through delivery pump A（5）Connect 3# filters（10）, concentrator
（3）, 1# filters（6）, 2# filters（7）With 3# filters（10）Bottom end be all connected with filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820263235.3U CN207973618U (en) | 2018-02-23 | 2018-02-23 | A kind of Flue Gas of Nonferrous Smelting purification diluted sulfric acid arsenic removing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820263235.3U CN207973618U (en) | 2018-02-23 | 2018-02-23 | A kind of Flue Gas of Nonferrous Smelting purification diluted sulfric acid arsenic removing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207973618U true CN207973618U (en) | 2018-10-16 |
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| CN201820263235.3U Active CN207973618U (en) | 2018-02-23 | 2018-02-23 | A kind of Flue Gas of Nonferrous Smelting purification diluted sulfric acid arsenic removing apparatus |
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| CN (1) | CN207973618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109354149A (en) * | 2018-11-12 | 2019-02-19 | 昆明理工大学 | A kind of processing method of the waste water containing heavy metal-polluted acid |
-
2018
- 2018-02-23 CN CN201820263235.3U patent/CN207973618U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109354149A (en) * | 2018-11-12 | 2019-02-19 | 昆明理工大学 | A kind of processing method of the waste water containing heavy metal-polluted acid |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 161000 No. 1, Fujing Road, Fularji district electric power office, Qiqihar City, Heilongjiang Province Patentee after: HEILONGJIANG ZIJIN COPPER INDUSTRY Co.,Ltd. Address before: 161000 Room 101, science and technology entrepreneurship center building, north end of Gongnong street, Fularji District, Qiqihar City, Heilongjiang Province Patentee before: HEILONGJIANG ZIJIN COPPER INDUSTRY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |