CN203903981U - Fluorine and chlorine removal and recovery device used in system for making acid by using copper smelting gas - Google Patents
Fluorine and chlorine removal and recovery device used in system for making acid by using copper smelting gas Download PDFInfo
- Publication number
- CN203903981U CN203903981U CN201420311801.5U CN201420311801U CN203903981U CN 203903981 U CN203903981 U CN 203903981U CN 201420311801 U CN201420311801 U CN 201420311801U CN 203903981 U CN203903981 U CN 203903981U
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- CN
- China
- Prior art keywords
- fluorine
- tower
- chlorine
- fluorine chlorine
- absorption tower
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Abstract
The utility model discloses a fluorine and chlorine removal and recovery device used in a system for making acid by using copper smelting gas. The fluorine and chlorine removal and recovery device comprises a blast blower, a fluorine and chlorine removal tower, a waste acid trap, a fluorine and chlorine absorption tower and solid-liquid separation equipment, wherein an outlet of the blast blower is connected with a gas phase inlet of the fluorine and chlorine removal tower; the middle part inside the fluorine and chlorine removal tower is filled with a high-temperature-resistant polypropylene haier ring; the waste acid trap is arranged above the high-temperature-resistant polypropylene haier ring and above the inside of the fluorine and chlorine removal tower; a gas phase outlet of the fluorine and chlorine removal tower is connected with the fluorine and chlorine absorption tower; an absorbent of the fluorine and chlorine absorption tower is a calcium oxide and calcium chloride solution; the fluorine and chlorine absorption tower is connected with the solid-liquid separation equipment. By using the fluorine and chlorine removal and recovery device, the aim of removing fluorine and chlorine without adding any agents such as a fluorine removal agent, an antichlor and the like in a recovery process can be achieved, and the production cost can be reduced; the removed fluorine and chlorine can be recycled and prepared into calcium fluoride, so that the additional value of a product is relatively high, and the economical benefit is remarkable; fluorine is abandoned in the traditional fluorine removal process to cause resource waste and environmental pollution.
Description
Technical field
The utility model relates to fluorine chlorine in spent acid and removes recovery technology field, is specifically related to a kind ofly by sorption, complete fluorine chlorine in the copper metallurgical gas sulphuric acid system that fluorine chlorine reclaims after not adding fluorine chlorinolysis that any medicament completes the spent acid in copper metallurgical gas sulphuric acid system and analysing and remove retrieving arrangement.
Background technology
Fluorine in copper flue gas during smelting and chlorine are in diluted acid purification and washing process, and fluorine and chlorine are present in purification spent acid with the form of hydrofluoric acid and hydrochloric acid.The corrodibility of hydrofluoric acid is very strong, and in flue gas, hydrogen fluoride exceeds standard and can cause the corrosion of ceramic packing in drying tower, absorption system.Hydrochloric acid is stronger to the corrodibility of sulfate system steel pipeline.In current technique, hydrofluoric removal is to add bath of glass or in dynamic wave scrubber, stack ceramic packing to complete solid fluorine.Because bath of glass viscosity is larger, in course of conveying, easily cause line clogging, and winter, liquid easily froze, and may cause bath of glass to add.Hydrochloric acid is removed without better method, by spent acid operation neutralizing treatment.This removal method has caused the significant wastage of resource, has increased production cost.
At present, the utility model patent that publication number is CN101591007 " defluorination method in a kind of pyrite-based sulfuric acid production ", adopts and adds water glass as precipitation agent, fluorine to be precipitated in pyrite-based sulfuric acid production system spent acid.The method is in actual production process, and in spent acid, the content of fluorine is unknown, and water glass add-on is completely rule of thumb controlled, and may cause removal efficiency of flouride lower, causes the corrosion of responsibility system and device.
Utility model content
Technical problem to be solved in the utility model is for shortcoming of the prior art, to provide a kind of by physical method, not add copper metallurgical gas sulphuric acid system that any additive completes fluorine chlorine desorption in the washing spent acid spent acid fluorine chlorine in purifying and remove retrieving arrangement.
For solving technical problem of the present utility model, adopt following technical scheme:
In a kind of copper metallurgical gas sulphuric acid system, fluorine chlorine removes retrieving arrangement, comprise gas blower, fluorine chlorine removes tower, spent acid acid trap, fluorine chlorine absorption tower, solid-liquid separating equipment, described blower export removes tower gas phase entrance with fluorine chlorine and is connected, described fluorine chlorine removes middle portion in tower and loads fire resistant polypropylene Haier ring, described fire resistant polypropylene Haier's ring top arranges spent acid acid trap, described spent acid acid trap is positioned at fluorine chlorine and removes tower inner and upper, described fluorine chlorine removes tower gaseous phase outlet and is connected with fluorine chlorine absorption tower, the absorption agent on described fluorine chlorine absorption tower is calcium oxide and calcium chloride solution, described fluorine chlorine absorption tower is connected with solid-liquid separating equipment.
Described fluorine chlorine absorption tower is foam absorbing tower, and on fluorine chlorine absorption tower, air vout arranges wire mesh mist eliminator.
Utilize fluorine chlorine in copper metallurgical gas sulphuric acid system to remove the recovery method of retrieving arrangement, its step is as follows:
Step a, copper smelting spent acid enter fluorine chlorine by spent acid acid trap and remove in tower, and spent acid acid trap is evenly smelted copper spent acid and is distributed in fire resistant polypropylene Haier ring;
Step b, utilize gas blower to remove toward fluorine chlorine the warm air that tower passes into 120 ℃-180 ℃, copper in warm air and fire resistant polypropylene Haier ring smelts that spent acid is reverse to be contacted, make the copper smelting spent acid in fire resistant polypropylene Haier ring be heated to rapidly 60 ℃-100 ℃, fluorine and chlorine that copper metallurgical gas sulphuric acid system purifies in spent acid are separated out with the form of gas with hydrogen fluoride and hydrogenchloride, spent acid after de-fluorine and chlorine removal returns to spent acid operation, carries out neutralizing treatment;
Step c, hydrogen fluoride and hydrogenchloride are accompanied by warm air and from fluorine chlorine, remove tower gaseous phase outlet and enter fluorine chlorine absorption tower, and the absorption agent calcium oxide on fluorine chlorine absorption tower and calcium chloride solution absorb hydrogen fluoride and hydrogenchloride, and reaction generates the solidliquid mixture of throw out Calcium Fluoride (Fluorspan);
The solid matter of the solidliquid mixture on steps d, fluorine chlorine absorption tower after solid-liquid separating equipment filtering separation is Calcium Fluoride (Fluorspan) product, and the liquid after filtering separation enters sewage disposal operation.
The utility model utilize sulfuric acid conversion system used heat through external heat exchanger to atmosphere temperature rising, make air themperature rise to 120 ℃-180 ℃, through gas blower, be sent to fluorine chlorine and remove tower, warm air is smelted spent acid reverse contact in fluorine chlorine removes tower with copper, copper is smelted spent acid and is heated to rapidly 60 ℃-100 ℃, the fluorine chlorine that copper metallurgical gas sulphuric acid system purifies in spent acid is separated out with the form of gas with hydrogen fluoride and hydrogenchloride, the hydrogen fluoride of separating out and hydrogenchloride follow warm air to enter fluorine chlorine absorption tower, in fluorine chlorine absorption tower, there is following reaction in hydrogen fluoride and calcium chloride:
2HF+?CaCl
2=CaF
2↓+2HCl
2HF+?Ca(OH)
?2=CaF
2↓+2H
2O
By add calcium oxide in hydrogen fluoride absorption tower, there is reaction as follows:
CaO+H
2O=Ca(OH)
?2
Ca(OH)
?2+2HCl=CaCl
2+2H
2O
The Calcium Fluoride (Fluorspan) that reaction generates is throw out, and after solid-liquid separating equipment filtering separation, solid matter is Calcium Fluoride (Fluorspan) product, and the finally copper of de-fluorine and chlorine removal smelting spent acid returns to spent acid operation.
In the copper metallurgical gas sulphuric acid system that the utility model provides, fluorine chlorine removes retrieving arrangement, its advantage is: 1, traditional fluorine removes and need to add medicament, to reach the object of solid fluorine and defluorination, and the utility model does not need to add in removal process the object that any medicaments such as defluorinating agent and antichlor just can reach de-fluorine and chlorine removal, can reduce production costs.2, the fluorine chlorine recoverable that the utility model removes is made Calcium Fluoride (Fluorspan), and added value of product is larger, remarkable in economical benefits, and traditional defluorination is discarded by fluorine, causes the wasting of resources, by causing environmental pollution.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of copper metallurgical gas sulphuric acid system purifies fluorine chlorine in spent acid and removes retrieving arrangement, comprise gas blower 1, fluorine chlorine removes tower 2, spent acid acid trap 3, fluorine chlorine absorption tower 4, solid-liquid separating equipment 5, gas blower 1 outlet removes tower 2 gas phase entrances with fluorine chlorine and is connected, fluorine chlorine removes the interior middle portion of tower 2 and loads fire resistant polypropylene Haier ring 6, described fire resistant polypropylene Haier encircles 6 tops spent acid acid trap 3 is set, spent acid acid trap 3 is positioned at fluorine chlorine and removes tower 2 inner and upper, described fluorine chlorine removes tower 2 gaseous phase outlets and is connected with fluorine chlorine absorption tower 4, fluorine chlorine absorption tower 4 is foam absorbing tower, the absorption agent on fluorine chlorine absorption tower 4 is calcium oxide and calcium chloride, on fluorine chlorine absorption tower, 4 air vouts are installed wire mesh mist eliminator 7, go out the drop of carrying secretly in air.Fluorine chlorine absorption tower 4 is connected with solid-liquid separating equipment 5, because the Calcium Fluoride (Fluorspan) generating in fluorine chlorine absorption tower 4 is micro-soluble material in solution, by solid-liquid separating equipment 5, carries out good separating effect.
embodiment 1
Utilize copper metallurgical gas sulphuric acid system to purify the recovery method that fluorine chlorine in spent acid removes retrieving arrangement, its step is as follows:
Step a, copper smelting spent acid enter fluorine chlorine by spent acid acid trap 3 and remove in tower 2, and spent acid acid trap 3 is evenly smelted copper spent acid and is distributed in fire resistant polypropylene Haier ring 6;
Step b, utilize gas blower 1 to remove toward fluorine chlorine the warm air that tower 2 passes into 120 ℃, copper in warm air and fire resistant polypropylene Haier ring 6 smelts that spent acid is reverse to be contacted, make the copper smelting spent acid in fire resistant polypropylene Haier ring 6 be heated to rapidly 60 ℃-100 ℃, fluorine and chlorine that copper is smelted in spent acid are separated out with the form of gas with hydrogen fluoride and hydrogenchloride, spent acid after de-fluorine and chlorine removal returns to spent acid operation, carries out neutralizing treatment;
Step c, hydrogen fluoride and hydrogenchloride are accompanied by warm air and from fluorine chlorine, remove tower 2 gaseous phase outlets and enter fluorine chlorine absorption tower 4, the absorption agent calcium oxide on fluorine chlorine absorption tower 4 and calcium chloride solution absorb hydrogen fluoride and hydrogenchloride, and reaction generates the solidliquid mixture of throw out Calcium Fluoride (Fluorspan);
The solidliquid mixture on steps d, fluorine chlorine absorption tower 4 solid matter after solid-liquid separating equipment 5 filtering separation is Calcium Fluoride (Fluorspan) product; Liquid enters sewage disposal operation.
embodiment 2
Utilize copper metallurgical gas sulphuric acid system to purify the recovery method that fluorine chlorine in spent acid removes retrieving arrangement, its step is as follows:
Step a, copper smelting spent acid enter fluorine chlorine by spent acid acid trap 3 and remove in tower 2, and spent acid acid trap 3 is evenly smelted copper spent acid and is distributed in fire resistant polypropylene Haier ring 6;
Step b, utilize gas blower 1 to remove toward fluorine chlorine the warm air that tower 2 passes into 180 ℃, copper in warm air and fire resistant polypropylene Haier ring 6 smelts that spent acid is reverse to be contacted, make the copper smelting spent acid in fire resistant polypropylene Haier ring 6 be heated to rapidly 60 ℃-100 ℃, fluorine and chlorine that copper metallurgical gas sulphuric acid system purifies in spent acid are separated out with the form of gas with hydrogen fluoride and hydrogenchloride, spent acid after de-fluorine and chlorine removal returns to spent acid operation, carries out neutralizing treatment;
Step c, hydrogen fluoride and hydrogenchloride are accompanied by warm air and from fluorine chlorine, remove tower 2 gaseous phase outlets and enter fluorine chlorine absorption tower 4, the absorption agent calcium oxide on fluorine chlorine absorption tower 4 and calcium chloride solution absorb hydrogen fluoride and hydrogenchloride, and reaction generates the solidliquid mixture of throw out Calcium Fluoride (Fluorspan);
The solidliquid mixture on steps d, fluorine chlorine absorption tower 4 solid matter after solid-liquid separating equipment 5 filtering separation is Calcium Fluoride (Fluorspan) product; Liquid enters sewage disposal operation.
Claims (2)
1. in a copper metallurgical gas sulphuric acid system, fluorine chlorine removes retrieving arrangement, it is characterized in that: comprise gas blower (1), fluorine chlorine removes tower (2), spent acid acid trap (3), fluorine chlorine absorption tower (4), solid-liquid separating equipment (5), described gas blower (1) outlet removes tower (2) gas phase entrance with fluorine chlorine and is connected, described fluorine chlorine removes the interior middle portion of tower (2) and loads fire resistant polypropylene Haier ring (6), described fire resistant polypropylene Haier's ring (6) top arranges spent acid acid trap (3), described spent acid acid trap (3) is positioned at fluorine chlorine and removes tower (2) inner and upper, described fluorine chlorine removes tower (2) gaseous phase outlet and is connected with fluorine chlorine absorption tower (4), the absorption agent on described fluorine chlorine absorption tower (4) is calcium oxide and calcium chloride solution, described fluorine chlorine absorption tower (4) is connected with solid-liquid separating equipment (5).
2. in copper metallurgical gas sulphuric acid system according to claim 1, fluorine chlorine removes retrieving arrangement, it is characterized in that: described fluorine chlorine absorption tower (4) is foam absorbing tower, and on fluorine chlorine absorption tower (4), air vout arranges wire mesh mist eliminator (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420311801.5U CN203903981U (en) | 2014-06-12 | 2014-06-12 | Fluorine and chlorine removal and recovery device used in system for making acid by using copper smelting gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420311801.5U CN203903981U (en) | 2014-06-12 | 2014-06-12 | Fluorine and chlorine removal and recovery device used in system for making acid by using copper smelting gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203903981U true CN203903981U (en) | 2014-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420311801.5U Withdrawn - After Issue CN203903981U (en) | 2014-06-12 | 2014-06-12 | Fluorine and chlorine removal and recovery device used in system for making acid by using copper smelting gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203903981U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030254A (en) * | 2014-06-12 | 2014-09-10 | 白银有色集团股份有限公司 | Fluorine-chlorine removal and recovery device in copper smelting smoke acid making system and recovery method thereof |
| CN105601012A (en) * | 2015-12-23 | 2016-05-25 | 韦建初 | Method for treating acid-containing waste liquid by condensation and distillation purification |
-
2014
- 2014-06-12 CN CN201420311801.5U patent/CN203903981U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030254A (en) * | 2014-06-12 | 2014-09-10 | 白银有色集团股份有限公司 | Fluorine-chlorine removal and recovery device in copper smelting smoke acid making system and recovery method thereof |
| CN104030254B (en) * | 2014-06-12 | 2016-02-24 | 白银有色集团股份有限公司 | In copper blast furnace off-gas acid making system, fluorine chlorine removes retrieving arrangement and recovery method thereof |
| CN105601012A (en) * | 2015-12-23 | 2016-05-25 | 韦建初 | Method for treating acid-containing waste liquid by condensation and distillation purification |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20160224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |