CN210237284U - Device for recovering and purifying organic phase from copper extraction interphase dirt - Google Patents
Device for recovering and purifying organic phase from copper extraction interphase dirt Download PDFInfo
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- CN210237284U CN210237284U CN201920970798.0U CN201920970798U CN210237284U CN 210237284 U CN210237284 U CN 210237284U CN 201920970798 U CN201920970798 U CN 201920970798U CN 210237284 U CN210237284 U CN 210237284U
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Abstract
A device for recovering and purifying an organic phase from copper extraction interphase sewage comprises an interphase sewage demulsification storage tank, a membrane filter press, an adsorption purification tank, a screen filter box, an organic phase purification storage tank and a water phase temporary storage tank, wherein compressed air is introduced into the interphase sewage storage tank to perform demulsification on the interphase sewage so as to separate the organic phase from the water phase; the filter press is provided with the filter plate air inlet and the squeezing plate air inlet, and filter cakes are blown forward and reversely by compressed air, so that the liquid content of the filter cakes is reduced, and the organic phase recovery rate is improved; the active clay is fully contacted with the organic phase by arranging the stirring paddle in the adsorption purification tank, so that the aim of purifying the organic phase is fulfilled; the separation of the active particle clay and the organic phase can be realized without additional filtering equipment by arranging the screen in the screen filtering box; the utility model discloses a cooperation of each equipment is used, makes the purification and the recovery of organic phase go on in step, and the rate of recovery of organic phase reaches more than 95% in the alternate filth.
Description
Technical Field
The utility model relates to a retrieve and purify device of organic phase in alternate filth of copper extraction belongs to non ferrous metal hydrometallurgy field.
Background
In the extraction process of producing cathode copper products by using copper oxide ores, oxygen-sulfur mixed ores, secondary copper sulfide ores and the like as raw materials and adopting a leaching-extraction-electrodeposition process, hydrophilic surface active substances exist in an organic phase, and the hydrophilic surface active substances, solid suspended matters, silica gel, metal ions (Fe, Al, Mg, Ca) and the like in a copper-containing feed liquid form flocculent dirt which floats between two phases or in one phase and is called as interphase dirt, and the interphase dirt needs to be periodically discharged out of a system so as to avoid influencing the phase separation of a clarification chamber.
The components of the dirt among the phases of different enterprises are different due to different properties of the extraction feed liquid or extraction operation parameters, but the dirt among the phases of different enterprises is composed of an organic phase, a water phase, a solid and the like, and the dirt among the phases must be treated in the production process to recover the entrained organic phase, so that the unit consumption of the extracting agent and the diluting agent is stabilized and reduced. The scale of domestic wet copper smelting enterprises is small, organic phases are generally recovered by adopting the modes of centrifugal machine separation, bagging, stacking, extruding and the like, and the production cost is high due to unreasonable equipment, low organic phase recovery rate, 5-10kg/t.Cu of extractant and 200kg/t.Cu of diluent.
The extractant will be degraded gradually during the use process, and in addition, the aromatic hydrocarbon and olefin in the diluent will be degraded during the use process, so as to generate the hydrophilic surface active substance. The hydrophilic surface active substance is a source for generating interphase dirt, can enter the interphase dirt and returns to a system along with an organic phase recovered from the interphase dirt. If the enrichment is not removed, the viscosity of the organic phase is increased, the phase separation speed is influenced, the extraction and back extraction phase separation time is prolonged, and the extraction operation is influenced. Many enterprises produce for about 2 years, and have to stop production and improve production due to the fact that the extraction and stripping phase separation time is close to the residence time of a clarification chamber and the interphase entrainment is serious.
Therefore, the device for recovering and purifying the organic phase from the copper extraction interphase dirt is found and realized, the recovery rate of the organic phase in the interphase dirt is improved, the surface active substances are removed, the recovered organic phase is purified, and the unit consumption of the extracting agent and the diluent is reduced, so that the device has very important practical significance.
Disclosure of Invention
In order to solve the problem, the utility model provides a retrieve and purify device of organic phase in the interphase filth from copper extraction, the device not only can realize the high-efficient of organic phase and retrieve in the interphase filth to can purify the hydrophilic surface active substance in the organic phase, thereby reduce extractant and diluent consumption, stabilize the phase separation time. And the device has simple configuration, low equipment cost and convenient operation.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the device for recovering and purifying the organic phase from the copper extraction interphase dirt comprises: the device comprises an interphase sewage demulsification storage tank (1), a membrane filter press (2), an adsorption purification tank (3), a screen filter box (4), a purified organic phase storage tank (5) and a water phase temporary storage tank (6).
The interphase sewage demulsification storage tank (1) is communicated with the compressed air pipe (7), a demulsification interphase sewage discharge port is arranged at the middle lower part of the interphase sewage demulsification storage tank (1), a pipeline is arranged at the demulsification interphase sewage discharge port and is communicated with an inlet of a No. 1 pump (17), and an outlet of the No. 1 pump (17) is communicated with a feed inlet of the membrane filter press (2) through a pipeline; the liquid phase discharge port of the membrane filter press (2) is communicated to the tank top of the adsorption purification tank (3) through a pipeline.
A stirring paddle (11) is arranged in the adsorption purification tank (3), a granular activated clay feeding port (12) is arranged on the adsorption purification tank (3), a water phase outlet (13) is arranged at the bottom of the adsorption purification tank (3), the water phase outlet (13) is communicated to the water phase temporary storage tank (6) through a pipeline, an adsorption purification organic phase outlet (14) is arranged at the lower part of the adsorption purification tank (3), and the adsorption purification organic phase outlet (14) is communicated to the filter box (4) through a pipeline; the bottom of the water phase temporary storage tank (6) is provided with a pipeline communicated to the inlet of the No. 2 pump (15), and the outlet of the No. 2 pump (15) is provided with a pipeline communicated to the tank top of the interphase sewage demulsification storage tank (1).
A filter screen (16) is arranged in the screen filtering box (4), and a discharge pipe communicated to the top of the purified organic phase storage tank (5) is arranged at the bottom of the screen filtering box (4).
Preferably, the membrane filter press (2) is provided with a filter plate air inlet (10) for forward blowing of filter cakes and a pressing plate air inlet (9) for back blowing and pressing of the filter cakes.
Preferably, the bottom of the interphase sewage demulsification storage tank (1) is provided with a water phase discharge port, and the water phase discharge port is connected with a water phase discharge valve (8).
Preferably, the mesh of the filter screen (16) is 10 meshes.
The utility model has the advantages that:
1. the utility model discloses an let in compressed air at alternate filth storage tank, destroy the stability of alternate filth with compressed air, make alternate filth divide into the double-phase of immiscible looks, mixed liquid after the breakdown of emulsion is after the layering of stewing, most aqueous phase of discharging.
2. The utility model discloses a set up the filter plate air intake respectively on membrane filter press and squeeze the board air intake, carry out forward blowing respectively and the blowback is squeezed to the filter cake with compressed air, fully reduce filter cake organic phase content, improve organic phase rate of recovery.
3. The utility model discloses a set up and adsorb the purification groove, after the filtrating entering after membrane filter press filters adsorbs the purification groove, through the phase splitting of stewing, with bottom aqueous phase discharge, avoided in the follow-up procedure when further purifying the organic phase reducing its ability of adsorbing active material in the organic phase because of the active clay adsorbs the aqueous phase.
4. The utility model discloses a set up the stirring rake in adsorbing the purification groove, the stirring effect of stirring rake lets the active clay fully mix the contact with the organic phase, adsorbs the active substance in the organic phase to reach the purpose of purifying the organic phase.
5. The utility model discloses a set up the screen cloth in the screen cloth rose box, do not need extra filtration equipment, can realize the separation of active particle clay and organic phase, economy is suitable for.
6. The utility model discloses a cooperation of each equipment is used, makes the purification and the recovery of organic phase go on in step: the organic phase is recovered and the active substances in the organic phase are purified.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the device comprises an interphase sewage demulsification storage tank, 2 a diaphragm filter press, 3 an adsorption purification tank, 4 a screen filter box, 5 a purified organic phase storage tank, 6 a water phase temporary storage tank, 7 a compressed air pipe, 8 a water phase discharge valve, 9 a squeezing plate air inlet, 10 a filter plate air inlet, 11 a stirring paddle, 12 a granular activated clay inlet, 13 a water phase outlet, 14 an adsorption purification organic phase outlet, 15.2 # pump, 16 a filter screen and 17.1 # pump.
The specific implementation mode is as follows:
as shown in fig. 1, the apparatus for recovering and purifying an organic phase from copper extraction interphase contaminants includes: the device comprises an interphase sewage demulsification storage tank (1), a membrane filter press (2), an adsorption purification tank (3), a screen filter box (4), a purified organic phase storage tank (5) and a water phase temporary storage tank (6).
The interphase sewage demulsification storage tank (1) is communicated with a compressed air pipe (7), a water phase discharge port is arranged at the bottom of the interphase sewage demulsification storage tank (1), and the water phase discharge port is connected with a water phase discharge valve (8); the middle lower part of the interphase sewage demulsification storage tank (1) is provided with a demulsification interphase sewage discharge port, the demulsification interphase sewage discharge port is provided with a pipeline communicated with an inlet of a No. 1 pump (17), and an outlet of the No. 1 pump (17) is communicated with a feed inlet of the membrane filter press (2) through the pipeline; the liquid phase discharge port of the membrane filter press (2) is communicated to the tank top of the adsorption purification tank (3) through a pipeline, and the membrane filter press (2) is provided with a filter plate air inlet (10) for forward blowing of filter cakes and a squeezing plate air inlet (9) for back blowing and squeezing of the filter cakes.
A stirring paddle (11) is arranged in the adsorption purification tank (3), a granular activated clay feeding port (12) is arranged on the adsorption purification tank (3), a water phase outlet (13) is arranged at the bottom of the adsorption purification tank (3), the water phase outlet (13) is communicated to the water phase temporary storage tank (6) through a pipeline, an adsorption purification organic phase outlet (14) is arranged at the lower part of the adsorption purification tank (3), and the adsorption purification organic phase outlet (14) is communicated to the filter box (4) through a pipeline; the bottom of the water phase temporary storage tank (6) is provided with a pipeline communicated to the inlet of the No. 2 pump (15), and the outlet of the No. 2 pump (15) is provided with a pipeline communicated to the tank top of the interphase sewage demulsification storage tank (1).
A filter screen (16) is arranged in the screen filtering box (4), the mesh of the filter screen (16) is 10 meshes, and a discharge pipe communicated to the tank top of the organic phase purifying storage tank (5) is arranged at the bottom of the screen filtering box (4).
The working process of the device is as follows:
interphase dirt generated by extraction and back extraction is added into the interphase dirt storage tank (1), compressed air is introduced into the interphase dirt storage tank (1) through a compressed air pipe (7) to be demulsified, and the demulsification of the compressed air can be rapidly carried out without acidification because the interphase dirt generated by the back extraction is high in acid content. And after demulsification is finished, closing the compressed air, standing for 5-10min to separate the water phase from the organic phase, opening a water phase discharge valve (8) of the interphase dirt storage tank (1), discharging the separated water phase, and closing the valve after the water phase is discharged. Starting a No. 1 pump (17), conveying interphase sewage after demulsification and drainage to a membrane filter press (2), simultaneously starting the membrane filter press (2) to perform filter pressing operation, and in the later stage of filter pressing, when no obvious liquid phase is filtered out again basically, positively blowing the filter cake by using compressed air through a filter plate air inlet (10), and then performing back blowing and squeezing on the filter cake by using compressed air through a squeezing plate air inlet (9). And (3) delivering the filtrate from the membrane filter press (2) to an adsorption purification tank (3) through a pipeline, standing the adsorption purification tank (3) for 5-10min, opening a valve of a water phase outlet (13) at the bottom of the adsorption purification tank (3) to discharge the water phase to a water phase temporary storage tank (6), and closing the valve after the water phase is discharged. Starting a stirring paddle (11), adding the granular active clay into the adsorption purification tank (3) from a granular active clay adding port (12), stirring for 10-15min, then opening a valve of an adsorption purification organic phase outlet (14), discharging the organic phase subjected to adsorption purification into a screen filter box (4), blocking the granular active clay on the screen, allowing the filtered organic phase to flow into a purification organic phase storage tank (5), realizing the separation of the granular active clay and the organic phase, and returning the organic phase subjected to adsorption purification to the extraction process for recycling.
The device normally operates in a 10kt/a wet-process copper smelting plant for 3 years, the recovery rate of an organic phase in interphase dirt is more than or equal to 95%, under the working condition of leaching feed liquid Cu2.0-2.5g/L, the unit consumption of an extracting agent is 2.1-2.5kg/t.Cu, the unit consumption of a diluting agent is 38-42kg/t.Cu, the phase separation time of extraction and back extraction is kept stable, and the organic phase in the process does not need to be adsorbed and purified.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (4)
1. A device for recovering and purifying organic phase from copper extraction interphase dirt is characterized in that: comprises an interphase sewage demulsification storage tank (1), a membrane filter press (2), an adsorption purification tank (3), a screen filter box (4), a purified organic phase storage tank (5) and a water phase temporary storage tank (6);
the interphase sewage demulsification storage tank (1) is communicated with the compressed air pipe (7), a demulsification interphase sewage discharge port is arranged at the middle lower part of the interphase sewage demulsification storage tank (1), a pipeline is arranged at the demulsification interphase sewage discharge port and is communicated with an inlet of a No. 1 pump (17), and an outlet of the No. 1 pump (17) is communicated with a feed inlet of the membrane filter press (2) through a pipeline; a liquid phase discharge port of the membrane filter press (2) is communicated to the tank top of the adsorption purification tank (3) through a pipeline;
a stirring paddle (11) is arranged in the adsorption purification tank (3), a granular activated clay feeding port (12) is arranged on the adsorption purification tank (3), a water phase outlet (13) is arranged at the bottom of the adsorption purification tank (3), the water phase outlet (13) is communicated to the water phase temporary storage tank (6) through a pipeline, an adsorption purification organic phase outlet (14) is arranged at the lower part of the adsorption purification tank (3), and the adsorption purification organic phase outlet (14) is communicated to the filter box (4) through a pipeline; the bottom of the water phase temporary storage tank (6) is provided with a pipeline communicated to the inlet of the No. 2 pump (15), and the outlet of the No. 2 pump (15) is provided with a pipeline communicated to the tank top of the interphase sewage demulsification storage tank (1);
a filter screen (16) is arranged in the screen filtering box (4), and a discharge pipe communicated to the top of the purified organic phase storage tank (5) is arranged at the bottom of the screen filtering box (4).
2. An apparatus for recovering and purifying an organic phase from copper extraction interphase contaminants set forth in claim 1 wherein: the membrane filter press (2) is provided with a filter plate air inlet (10) for positive blowing of filter cakes and a pressing plate air inlet (9) for back blowing and pressing of the filter cakes.
3. An apparatus for recovering and purifying an organic phase from copper extraction interphase contaminants set forth in claim 1 wherein: the bottom of the interphase sewage demulsification storage tank (1) is provided with a water phase discharge port which is connected with a water phase discharge valve (8).
4. An apparatus for recovering and purifying an organic phase from copper extraction interphase contaminants set forth in claim 1 wherein: the meshes of the filter screen (16) are 10 meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920970798.0U CN210237284U (en) | 2019-06-26 | 2019-06-26 | Device for recovering and purifying organic phase from copper extraction interphase dirt |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920970798.0U CN210237284U (en) | 2019-06-26 | 2019-06-26 | Device for recovering and purifying organic phase from copper extraction interphase dirt |
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| CN210237284U true CN210237284U (en) | 2020-04-03 |
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| CN201920970798.0U Active CN210237284U (en) | 2019-06-26 | 2019-06-26 | Device for recovering and purifying organic phase from copper extraction interphase dirt |
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