CN214763460U - Pulse injection feeding extraction equipment - Google Patents
Pulse injection feeding extraction equipment Download PDFInfo
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- CN214763460U CN214763460U CN202120462313.4U CN202120462313U CN214763460U CN 214763460 U CN214763460 U CN 214763460U CN 202120462313 U CN202120462313 U CN 202120462313U CN 214763460 U CN214763460 U CN 214763460U
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Abstract
The utility model provides a pulse jet feeding extraction equipment relates to solvent extraction technical field. It includes: an extraction column and a pulse feed system. The pulse feeding system arranged outside the extraction tower is adopted to realize effective dispersion of liquid phase, and the pulse extraction tower has the advantages of the pulse extraction tower, the liquid phase pulse can promote two phases to further disperse and transfer mass, and the mass transfer performance is good and the handling capacity is large. Furthermore, the utility model overcomes the not enough of pulse extraction tower, the utility model discloses an extraction tower pulse intensity is low, and the axial back mixing effect is weak, and light heavy phase liquid separation is effectual.
Description
Technical Field
The utility model relates to a solvent extraction technical field particularly, relates to a pulse injection feeding extraction equipment.
Background
Solvent extraction is an important chemical separation technology, and separation or purification of liquid mixtures is realized by utilizing different properties of solute distribution between two mutually insoluble or partially mutually soluble liquid phases. In the liquid-liquid contact extraction process, in order to enlarge the mass transfer surface area and strengthen the mass transfer, one liquid phase is generally dispersed into liquid drops to be fully contacted with the other liquid phase, and then the two phases are separated under the action of gravity or centrifugal force by utilizing the density difference of the two phases. At present, the liquid phase dispersion is driven by adopting an external energy input mode in industrial application. Such as mechanical agitation, pulsing, magnetic, etc., and related extraction equipment includes mixer-settlers, rotating disc towers, pulsing towers, etc.
The patent CN105013211B adopts the countercurrent extraction process of light and heavy alternate feeding, adopts the alternate feeding of dispersed phase and continuous phase, and is assisted by standing separation. The patent changes the intermittent extraction process into a semi-continuous extraction process, can reduce the liquid drop of a dispersed phase, and improves the extraction efficiency. However, the extraction tower of the patent has small handling capacity relative to a continuous tower device, is not suitable for large-scale production, and the alternating feeding of light and heavy materials can cause unstable product quality.
A pulsed extraction column is a common extraction apparatus. In the pulse extraction tower, two-phase liquid continuously enters the tower through the feed inlet, and a pulse generator inputs pulses into the tower through a pulse port to enable the light-heavy phase liquid to reciprocate up and down, so that dispersed phase liquid drops are fully crushed and dispersed, the contact area of the two phases is effectively increased, the turbulence and the full contact of two-phase fluid are enhanced, and the mass transfer efficiency of the tower is further improved. The pulse extraction tower has no mechanical transmission member, good sealing performance and relatively simple structure, and is especially suitable for treating corrosive and radioactive media. However, the light-heavy phase liquid of the pulse extraction tower reciprocates up and down, so that serious axial back mixing is caused, and the light-heavy phase liquid separation effect is not good.
In view of this, the utility model is especially provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pulse sprays feeding extraction equipment in order to solve above-mentioned technical problem.
The utility model discloses a realize like this:
the utility model provides a pulse jet feeding extraction equipment, it includes: the device comprises an extraction tower and a pulse feeding system, wherein the top of the extraction tower is provided with a heavy phase inlet and a light phase outlet, and the bottom of the extraction tower is provided with a heavy phase outlet and a light phase inlet; the pulse feeding system is connected with the heavy phase inlet and/or the light phase outlet through a feeding pipe; the pulse feeding system comprises a raw material liquid storage tank, a gas surge tank and a liquid buffer tank, wherein the raw material liquid storage tank is communicated with the liquid buffer tank through a liquid inlet pipeline, the gas surge tank is communicated with the liquid buffer tank through a gas inlet pipeline, and the liquid buffer tank is communicated with the extraction tower through a feed pipe.
In a traditional countercurrent contact extraction tower, two phases move under the action of gravity to carry out countercurrent contact mass transfer, the settling velocity of dispersed phase droplets is related to the size of the droplets and the flow velocity of a continuous phase, when the flow phase velocity is higher or the particle size of the droplets is smaller, the settling velocity of the droplets is possibly lower than the flow velocity of the continuous phase, and the droplets move along with the continuous phase, so that the two phases cannot carry out normal mass transfer.
The utility model discloses a pulse feed system realizes the feeding of pulse form, and the pulse sprays the feeding and compares in continuous feeding, and the instantaneous flow is bigger under the pulse feeding under the same average flow, is favorable to the liquid phase dispersion to be littleer liquid drop, and need not higher pulse intensity further dispersion double-phase liquid. Consequently compare with traditional pulse extraction tower, the utility model provides a pulse sprays feeding extraction equipment's axial back mixing effect is weak.
The utility model discloses in the embodiment of using the preferred, be provided with reciprocal measuring pump on the above-mentioned feed liquor pipeline, be provided with the governing valve on the inlet pipe, be provided with the control valve on the intake pipe road, reciprocal measuring pump, governing valve and control valve all access control treater. The utility model discloses in the embodiment of using the preferred, still be provided with the check valve on the above-mentioned inlet pipe.
In other embodiments, the instruments and valves disposed on the raw material liquid storage tank, the liquid buffer tank, the compressor, the surge tank and the metering pump are all connected to the control processor, and the control processor controls the operation of the valves and the equipment.
The pulse feeding principle of the pulse feeding system is as follows: the reciprocating metering pump works continuously, and liquid in the raw material liquid storage tank is input into the liquid buffer tank. When control valve (three-way valve) control gas surge tank and liquid buffer tank were connected, liquid in the liquid buffer tank enters into the extraction tower under compressed gas promotes, because of liquid buffer tank internal pressure is great, in the measuring pump probably can't import liquid to the liquid buffer tank, the check valve played the effect of ending this moment, prevented liquid refluence in the buffer tank, was the pulse feeding crest this moment.
When the three-way valve control liquid buffer tank is connected with the atmosphere, the liquid level in the tower is higher than the buffer tank, the check valve prevents the liquid in the tower from flowing back to the liquid buffer tank (the check valve can not be arranged in other embodiments, so that the liquid in the tower flows back to the buffer tank), the liquid in the raw material liquid storage tank is input into the liquid buffer tank under the action of the metering pump, and the pulse feeding trough is formed at the moment.
When the device is used, the flow rate and pressure of a pipeline and the liquid level of a buffer tank are measured in real time and input into a control processor, and the control processor controls and adjusts the switching time of an electromagnetic valve, the pressure of a pressure stabilizing tank, the feeding speed of a metering pump and the like after program operation, so that the feeding speed, the pulse amplitude and the pulse frequency are adjusted.
In a preferred embodiment of the present invention, the pulse feeding system is connected to the heavy phase inlet and/or the light phase outlet through a feeding pipe, and comprises any one of the following modes: the pulse feeding system is connected with the heavy phase inlet of the extraction tower through a feeding pipe, the pulse feeding system is connected with the light phase inlet of the extraction tower through a feeding pipe, and the two pulse feeding systems are respectively connected with the heavy phase inlet and the light phase inlet through the heavy phase feeding pipe and the light phase feeding pipe.
Namely: the light and heavy two-phase liquid is fed in a pulse mode, and only one phase of liquid can be continuously fed, and the other phase of liquid can be fed in a pulse mode. The flow rate, pulse amplitude, pulse frequency and interval of the two-phase liquid are all controlled by a pulse feeding system.
It should be noted that, when two pulse feeding systems are provided, the corresponding heavy-phase pulse feeding system includes a heavy-phase raw material liquid storage tank, a gas surge tank and a liquid buffer tank, and the light-phase pulse feeding system includes a light-phase raw material liquid storage tank, a gas surge tank and a liquid buffer tank. The raw material liquid storage tank is communicated with the liquid buffer tank through a liquid inlet pipeline, the gas surge tank is communicated with the liquid buffer tank through a gas inlet pipeline, and the liquid buffer tank is communicated with the extraction tower through a feeding pipe. The two pulse feed systems differ only in the feed solution and the remaining equipment is identical. The control parameters can be adaptively adjusted according to the heavy phase and the light phase.
In the preferred embodiment of the present invention, a liquid distributor is disposed at one end of the feeding pipe extending into the extraction tower.
In the preferred embodiment of the present invention, the liquid distributor is a nozzle or an opening distribution pipe, the nozzle holes of the liquid distributor located at the heavy phase inlet are downward, and the nozzle holes of the liquid distributor located at the light phase inlet are upward.
The heavy phase and the light phase are dispersed into small liquid drops through the liquid distributor and are sprayed to the mass transfer element, so that disturbance is generated on the surface of the mass transfer area, and the liquid is not easy to generate a stable liquid layer on the surface of the mass transfer area and further becomes flooded.
In other embodiments, the shape of the orifice includes, without limitation: circular, square, diamond, triangular, and trapezoidal.
The utility model discloses in the embodiment of using the preferred, above-mentioned extraction tower top is provided with first stationary flow filler near light phase exit, and first stationary flow filler separates heavy phase import and light phase export on the space.
The utility model discloses in the embodiment of using the preferred, above-mentioned extraction tower bottom is close to the heavy phase exit and also is provided with the second stationary flow and packs, and the second stationary flow packs to separate on the space with light phase import and heavy phase export.
The utility model discloses in the embodiment of using the preferred, above-mentioned extraction tower is from last to including clarification section, heavy phase feeding section, mass transfer section, light phase feeding section and clarification section down.
The steady flow filler is arranged in the light phase separation area (namely the upper clarification section) and the heavy phase separation area (namely the lower clarification section), which is beneficial to promoting coalescence of two-phase liquid drops, slowing down pulse intensity and fluctuation of liquid and promoting separation of two phases.
The steady flow filler is utilized to ensure that the liquid fluctuation of the upper clarification section and the heavy phase feeding section keeps larger difference, on one hand, the pulse liquid of the heavy phase feeding section can be fully contacted with the light phase from upstream to upstream, and on the other hand, the light phase which is primarily separated enters the upper clarification section through the steady flow filler to realize better separation of the light phase under smaller liquid fluctuation.
Similarly, the steady flow filler is utilized to ensure that the liquid fluctuation of the lower clarification section and the light phase feeding section keeps larger difference, on one hand, the pulse liquid of the light phase feeding section can be fully contacted with the heavy phase flowing downwards in a counter flow manner, and on the other hand, the heavy phase which completes the primary separation enters the lower clarification section through the steady flow filler to realize better separation of the heavy phase under smaller liquid fluctuation. The arrangement is favorable for reducing the axial back mixing effect and improving the mass transfer efficiency.
The utility model discloses in the embodiment of using the preferred, above-mentioned gaseous surge tank links to each other with centrifugal compressor.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a new pulse jet feeding extraction equipment adopts the pulse feed system of extraction tower peripheral hardware to realize effectual dispersion liquid phase, has the advantage of pulse extraction tower simultaneously again, and liquid phase pulse can promote double-phase further dispersion mass transfer, and its mass transfer performance is good, and the handling capacity is big. Furthermore, the utility model overcomes the not enough of pulse extraction tower, the utility model discloses an extraction tower pulse intensity is low, and the axial back mixing effect is weak, and light heavy phase liquid separation is effectual.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of the structure of a pulsed feed extraction apparatus provided in example 1;
FIG. 2 is a schematic diagram of a conventional pulsed extraction column.
Icon: 1-heavy phase material outlet; 2-mass transfer section; 3-a tower body; 4-light phase material outlet; 5-a light phase separation zone; 6-steady flow filling; 7-a heavy phase liquid distributor; 8-a heavy phase feed system; 9-a light phase feed system; 901-a first one-way valve; 902-electric regulating valve; 903-centrifugal compressor; 904-gas surge tank; 905-a raw material liquid storage tank; 906-a control processor; 907-three-way electromagnetic valve; 908-liquid buffer tank; 909-electric reciprocating metering pump; 910-a second one-way valve; 10-a light phase liquid distributor; 11-heavy phase separation zone.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the terms are only used for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to FIG. 1, the present example provides a pulsed jet feed extraction apparatus. Which comprises an extraction column and a pulse feeding system. In this embodiment, a pulsed feeding system is provided in both the light phase feeding system 9 and the heavy phase feeding system 8.
Referring to fig. 1, the extraction tower comprises a tower body 3, and the tower body 3 sequentially comprises a light phase separation zone 5, a heavy phase feeding zone, a mass transfer zone 2, a light phase feeding zone and a heavy phase separation zone 11 from top to bottom. The top and the bottom of the tower body 3 are both provided with steady flow fillers 6, the light phase separation zone 5 and the heavy phase feeding zone are separated by the steady flow fillers 6 at the top, and the light phase feeding zone and the heavy phase separation zone 11 are separated by the steady flow fillers 6 at the bottom.
The upper and lower ends of the tower body 3 are provided with a light phase separation zone 5 (namely an upper clarification zone) and a heavy phase separation zone 11 which are used for two-phase layered separation and can be variable-diameter or equal-diameter tower sections, preferably tower sections with the diameter larger than that of the mass transfer zone.
The steady flow filler 6 is arranged in the light phase separation area 5 and the heavy phase separation area 11, so that the coalescence of two-phase liquid drops is facilitated, the pulse intensity and the fluctuation of liquid are relieved, and the two-phase separation is facilitated.
The top of the tower body 3 is provided with a heavy phase inlet and a light phase material outlet 4, and the bottom of the tower body 3 is provided with a heavy phase material outlet 1 and a light phase inlet. The heavy phase inlet is arranged at the heavy phase feeding section, and the light phase material outlet 4 is arranged at the light phase separation section 5. The light phase inlet is arranged at the light phase feeding section, and the heavy phase material outlet 1 is arranged at the heavy phase separation section 11.
Referring to fig. 1, the heavy phase enters the tower body 3 from a feeding pipe above the tower body 3 through a heavy phase inlet, and a heavy phase liquid distributor 7 is arranged at the end part of the feeding pipe extending into the extraction tower. The light phase enters the tower body 3 from a feed pipe below the tower body 3 through a light phase inlet, and a light phase liquid distributor 10 is arranged at the end part of the feed pipe extending into the extraction tower.
The liquid distributor is a spray head or an open-pore distribution pipe, the spray holes of the liquid distributor positioned at the heavy phase inlet are downward, and the spray holes of the liquid distributor positioned at the light phase inlet are upward. The light phase liquid is injected upward and the heavy phase liquid is injected downward.
The heavy phase and the light phase are dispersed into small liquid drops through the liquid distributor and are sprayed to the mass transfer element, so that disturbance is generated on the surface of the mass transfer area, and the liquid is not easy to generate a stable liquid layer on the surface of the mass transfer area and further becomes flooded.
The mass transfer section 2 is provided with mass transfer elements which can be sieve plates, fillers or baffle plates and the like.
The light phase feeding system in this embodiment includes a raw material liquid storage tank 905, a liquid buffer tank 908, a centrifugal compressor 903, a gas pressure stabilizing tank 904, and an electric reciprocating metering pump 909, wherein instruments and valves are connected to a control processor, and the control processor controls the operation of the valves, the compressor, and the metering pump.
Specifically, the raw material liquid storage tank 905 is communicated with the liquid buffer tank 908 through a liquid inlet pipeline, and an electric reciprocating metering pump 909 and a second check valve 910 are disposed on the liquid inlet pipeline.
The gas surge tank 904 is in communication with the liquid surge tank 908 via an air inlet line, and the liquid surge tank 908 is in communication with the extraction column via a feed line.
The feed pipe is provided with a regulating valve and a first one-way valve 901, the regulating valve in the embodiment is an electric regulating valve 902, and in other embodiments, the type of the regulating valve can be set according to the actual use condition, and the regulating valve is not limited to the valve body type in the embodiment.
The air inlet pipeline is provided with a control valve, in the embodiment, the control valve on the air inlet pipeline is a three-way electromagnetic valve 907, and the electric reciprocating metering pump 909, the electric regulating valve 902 and the three-way electromagnetic valve 907 are all connected to the control processor 906.
The pulse feeding principle of the pulse feeding system is as follows: the electric reciprocating metering pump 909 continuously operates to feed the liquid in the raw material liquid storage tank 905 into the liquid buffer tank 908. When the three-way electromagnetic valve 907 controls the gas surge tank 904 to be connected with the liquid buffer tank 908, the liquid in the liquid buffer tank 908 enters the extraction tower under the pushing of compressed gas, and the electric reciprocating metering pump 909 may not input the liquid into the liquid buffer tank 908 due to the large pressure in the liquid buffer tank 908, and at the moment, the second one-way valve 910 plays a role in stopping to prevent the liquid in the liquid buffer tank 908 from flowing backwards, and at the moment, the pulse feeding wave crest is formed.
When the three-way electromagnetic valve 907 controls the liquid buffer tank 908 to be connected to the atmosphere, at this time, the liquid level in the tower body 3 is higher than the liquid level of the liquid buffer tank 908, the first one-way valve 901 prevents the liquid in the tower body 3 from flowing back to the liquid buffer tank 908 (in other embodiments, the one-way valve is not provided, so that the liquid in the tower body flows back to the liquid buffer tank 908), and the liquid in the raw material liquid storage tank 905 is input into the liquid buffer tank 908 under the action of the electric reciprocating metering pump 909, which is a pulse feeding trough at this time.
When the device is used, the flow rate and pressure of a pipeline and the liquid level of a buffer tank are measured in real time and input into a control processor, and the control processor controls and adjusts the switching time of an electromagnetic valve, the pressure of a pressure stabilizing tank, the feeding speed of a metering pump and the like after program operation, so that the feeding speed, the pulse amplitude and the pulse frequency are adjusted.
In this embodiment, the light-phase liquid distributor 10 and the heavy-phase liquid distributor 7 are both nozzles, and the holes are circular holes. The tower diameters of the upper clarification section and the lower clarification section are both 200mm, and the heights of the upper clarification section and the lower clarification section are both 500 mm. The tower diameter of the mass transfer section 2 is 80mm, the height is 1000mm, and pall ring packing with the diameter of 10mm is filled. The light phase and the heavy phase are fed under the control of the pulse feeder, and the wave crests of the two-phase feeding pulses are staggered, namely the pulse wave crest of the light phase feeding is the wave trough of the heavy phase feeding.
The test was carried out in a water-kerosene-benzoic acid system, the heavy phase being deionized water, the light phase being kerosene, the benzoic acid being dissolved in the kerosene as solute. The concentration of benzoic acid in the light phase feed was 2g/kg kerosene. The flow rate of the heavy phase is 30L/h, and the flow rate of the light phase is 10L/h. The light phase pulse frequency was 0.2 Hz.
After three repeated experiments, the extraction rate of the benzoic acid is 96.5 percent.
The benzoic acid extraction rate of the non-pulse packed tower under the same specification is 45.0 percent, while the benzoic acid extraction rate of the non-pulse packed tower in the traditional pulse packed tower is 86.3 percent.
Example 2
This example provides a pulsed jet feed extraction apparatus. This example provides a pulsed feed system only in the light phase feed system. The tower diameters of the upper clarification section and the lower clarification section are both 200mm, and the heights of the upper clarification section and the lower clarification section are both 400 mm; the mass transfer section 2 is provided with sieve plates, the aperture of each sieve plate is 6mm, the aperture ratio is 40%, the sieve plates are arranged in a regular triangle, the space between the sieve plates is 120mm, and 13 layers of sieve plates are counted.
Heavy phase with P2O553 wt% concentrated phosphoric acid with an average flow rate of 300ml/min, and adopting a continuous feeding mode; the light phase adopts tributyl phosphate-kerosene (3:1), the average flow rate is 1000ml/min, the pulse feeding mode is adopted, and the first one-way valve 901 is not arranged. The light phase pulse frequency was 0.25Hz, the feed pulse time was 1s, with an interval of 3 s. Each feed pulse was 100ml (when no one-way valve was provided, liquid would partially flow back into liquid buffer tank 908 during the interval of the feed pulse).
Three replicates were run under the above conditions and the results showed: the phosphoric acid extraction rate was 65.3% on average. The conditions of mass transfer height, flow, pulse intensity and the like are kept consistent, the extraction rate in the pulse-free sieve plate tower is 30.2 percent, and the extraction rate in the traditional pulse sieve plate tower is 55.1 percent.
Referring to fig. 2, fig. 2 is a schematic structural view of a conventional pulse packed tower, in which a pulse port is provided in a tower body.
From example 1 and example 2, the utility model discloses compare in the filler/sieve extraction column of no pulse, traditional pulse tower, have showing improvement in mass transfer efficiency.
Compared with the existing extraction tower, the utility model has the following outstanding advantages:
(1) the pulse jet feeding can effectively disperse two-phase liquid, increases two-phase mass transfer area, and remarkably improves mass transfer efficiency compared with the prior pulse-free continuous feeding packed tower or sieve plate tower;
(2) the raw materials are sprayed into the tower under the action of the distributor, and the instantaneous flow of the liquid phase is larger during feeding pulse due to the adoption of a pulse feeding mode, so that liquid drops can be fully crushed and dispersed compared with continuous feeding;
(3) the pulse jet feeding can better disperse the liquid phase without further breaking liquid drops with higher pulse intensity, so compared with the traditional pulse extraction tower, the utility model can be operated under smaller pulse intensity, the axial back-mixing effect is weak, and the mass transfer efficiency is high;
(4) the pulse intensity is reduced, so that the liquid fluctuation of the clarification section is reduced, and the separation of light and heavy phases is promoted.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A pulse jet feed extraction apparatus, comprising: the device comprises an extraction tower and a pulse feeding system, wherein the top of the extraction tower is provided with a heavy phase inlet and a light phase outlet, and the bottom of the extraction tower is provided with a heavy phase outlet and a light phase inlet; the pulse feeding system is connected with the heavy phase inlet and/or the light phase outlet through a feeding pipe; pulse charge-in system includes former feed liquid storage tank, gaseous surge tank and liquid buffer tank, former feed liquid storage tank through the liquid inlet pipeline with liquid buffer tank intercommunication, gaseous surge tank through the air inlet pipeline with liquid buffer tank intercommunication, just liquid buffer tank passes through the inlet pipe with the extraction tower intercommunication.
2. A pulse jet feed extraction apparatus as claimed in claim 1, wherein the end of the feed pipe extending into the extraction column is provided with a liquid distributor.
3. The pulse jet feed extraction apparatus of claim 2, wherein the liquid distributor is a spray head or an open-celled distribution pipe, with orifices of the liquid distributor at the heavy phase inlet facing downward and orifices of the liquid distributor at the light phase inlet facing upward.
4. The pulse jet feed extraction apparatus of claim 1, wherein a reciprocating metering pump is disposed on the feed liquid pipeline, a regulating valve is disposed on the feed material pipeline, a control valve is disposed on the feed gas pipeline, and the reciprocating metering pump, the regulating valve and the control valve are all connected to a control processor.
5. A pulse jet feed extraction apparatus as claimed in claim 4, wherein the feed pipe is also provided with a one-way valve.
6. A pulse jet feed extraction apparatus according to claim 1, wherein the connection of the pulse feed system to the heavy phase inlet and/or the light phase outlet via a feed pipe comprises any one of: the pulse feeding system is connected with a heavy phase inlet of the extraction tower through a feeding pipe, the pulse feeding system is connected with a light phase inlet of the extraction tower through a feeding pipe, and the two pulse feeding systems are respectively connected with the heavy phase inlet and the light phase inlet through the heavy phase feeding pipe and the light phase feeding pipe.
7. The pulse jet feed extraction apparatus of claim 1, wherein a first flow stabilizer packing is disposed at the top of the extraction column proximate the light phase outlet and spatially separates the heavy phase inlet and the light phase outlet.
8. The pulse jet feed extraction apparatus of claim 7, wherein a second flow stabilizer packing is also disposed at the bottom of the extraction column proximate the heavy phase outlet, and the second flow stabilizer packing spatially separates the light phase inlet and the heavy phase outlet.
9. The pulse jet feed extraction apparatus of claim 7, wherein the extraction column comprises, from top to bottom, an upper clarification section, a heavy phase feed section, a mass transfer section, a light phase feed section, and a lower clarification section.
10. A pulse jet feed extraction plant according to claim 1, wherein the gas surge tank is connected to a centrifugal compressor.
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|---|---|---|---|
| CN202120462313.4U CN214763460U (en) | 2021-03-03 | 2021-03-03 | Pulse injection feeding extraction equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120462313.4U CN214763460U (en) | 2021-03-03 | 2021-03-03 | Pulse injection feeding extraction equipment |
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| CN214763460U true CN214763460U (en) | 2021-11-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115608002A (en) * | 2022-12-16 | 2023-01-17 | 中国科学院过程工程研究所 | Device and method for enhancing extraction of phosphate ore acidolysis slurry |
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- 2021-03-03 CN CN202120462313.4U patent/CN214763460U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115608002A (en) * | 2022-12-16 | 2023-01-17 | 中国科学院过程工程研究所 | Device and method for enhancing extraction of phosphate ore acidolysis slurry |
| CN115608002B (en) * | 2022-12-16 | 2023-03-17 | 中国科学院过程工程研究所 | Device and method for enhancing extraction of phosphate ore acidolysis slurry |
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