CN201694844U - Phosphoric acid purifying device - Google Patents
Phosphoric acid purifying device Download PDFInfo
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- CN201694844U CN201694844U CN2010201990082U CN201020199008U CN201694844U CN 201694844 U CN201694844 U CN 201694844U CN 2010201990082 U CN2010201990082 U CN 2010201990082U CN 201020199008 U CN201020199008 U CN 201020199008U CN 201694844 U CN201694844 U CN 201694844U
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Abstract
The utility model discloses a phosphoric acid purifying device, which comprises an extraction device, a washing device and a re-extraction device. The extraction device selects a pulse sieve-plate tower as mass transfer equipment, the washing device and the re-extraction device respectively select a single stage consisting of an assembly of an emulsion machine and a phase splitting device or multiple stages combined by multiple assemblies of emulsion machines and phase splitting devices. A light phase inlet of the sieve-plate tower of the extraction device is connected with a light phase outlet of the phase splitting device at the tail stage of the re-extraction device, a primary solvent inlet of the washing device is connected with a light-phase outlet of the sieve-plate tower of the extraction device, and a primary solvent inlet of the re-extraction device is connected with a light-phase outlet of the phase splitting device at the tail stage of the washing device. The phosphoric acid purifying device can strengthen mass transfer property, increase purifying efficiency and reduce equipment investment and operation cost.
Description
Technical field
The utility model relates to this chemical industry equipment field, relates in particular to a kind of phosphoric acid purification device.
Background technology
Realize that with solvent extraction technology phosphoric acid purification is a phosphoric acid purification technology commonly used at present, solvent extraction technology generally comprises extraction, washing, reaches the back extraction operation.The chemical industry equipment that can realize extraction, washing, back extraction function at present is mainly as follows: multistage mixing-clarifying tank, it is a kind of typically contact liquid liquid mass transfer apparatus step by step, wherein every grade comprises mixing tank and clarifying tank two portions, this equipment main drawback has: horizontal multistage mixing-tempering tank floor space is bigger, be equipped with whipping appts in each level, fluid generally needs to use pump delivery flowing of inter-stage, and cost of equipment and process cost are all bigger; Pulse plate ring tower and oscillating screen plate tower, pulse plate ring tower need be done the tower body size very big in order to reach higher mass transfer effect, needs to fill a large amount of materials when carrying out production operation in the tower, and system's start-stop car time is long, and it is big that spillage risk takes place; And sieve plate is fixed on the central shaft in the oscillating screen plate tower, is driven by toggle, and this tower is limited by equipment material, the equipment failure rate height, and working cost is higher.For addressing the above problem, Chinese patent publication number CN2325567 discloses a kind of " sieve-tray tower that is used for pulse extraction " on 02 20th, 2002, but it can only finish mixed processes, material goes out also need enter proprietary phase splitting device behind the tower and carry out phase-splitting, and system device is many, and sieve diameter is too little, when being used for the phosphoric acid by wet process extraction, cause clogging of screen easily because of there being more precipitation to separate out, inconvenient operation is unfavorable for the phosphoric acid by wet process extraction.
The rotor of mulser and stator are under the high-speed driving of motor, bear the inferior shearing action of hundreds of thousands of at short notice, because the powerful kinetic energy that high linear speed that the rotor high-speed rotation is produced and high frequency machinery effect belt come, make that material is subjected to intensive machinery and fluid power shearing, centrifugal extruding, liquid layer friction in the accurate gap of stator and rotor, high-speed impact is torn with comprehensive action such as turbulent flow under division, broken, disperse, thereby make immiscible material in the abundant dispersion in moment uniform, fine ground, emulsification, homogeneous, dissolving.Mulser is widely used in fine chemistry industry at present: resin emulsification, silicone oil emulsification, carbon black dispersion, fillers dispersed etc.; Be applied to petrochemical complex: heavy oil emulsive, emulsified bitumen, wax emulsification etc.; Biological medicine: microcapsule emulsification, medicine emulsion, cell tissue fragmentation etc.
Summary of the invention
The purpose of this utility model be to overcome above-mentioned shortcoming and provide a kind of can the reinforcing mass transfer performance, improve purification efficiency, reduce the phosphoric acid purification device of facility investment and working cost.
A kind of phosphoric acid purification device of the present utility model, comprise extraction plant, washing device and back extraction device, wherein: extraction plant sieve-tray tower light phase export is connected with washing device one-level solvent inlet, washing device one-level light phase export is connected with back extraction device one-level solvent inlet, and back extraction device one-level light phase export connects with the light import mutually of extraction plant sieve-tray tower;
Extraction plant comprises sieve-tray tower and surge generator, and sieve-tray tower is made of the last clarifying chamber at top, the body of the tower at middle part and the following clarifying chamber of bottom, and it is some that sieve plate is housed in the body of the tower; Last clarifying chamber is provided with heavy phase import of extraction plant sieve-tray tower and extraction plant sieve-tray tower light phase export, and the heavy phase distribution plate in the import of extraction plant sieve-tray tower heavy phase and the body of the tower is communicated with; Following clarifying chamber is provided with the extraction plant sieve-tray tower and gently enters the mouth mutually, the peripheral hardware liquidometer, and the bottom is provided with extraction plant sieve-tray tower raffinate relief outlet, and the light distribution plate mutually in light inlet mutually of extraction plant sieve-tray tower and the body of the tower is communicated with; Surge generator is connected with following clarifying chamber;
Washing device comprises washing device one-level mulser and washing device one-level phase splitting device, washing device one-level mulser is provided with mulser import of washing device one-level and the outlet of washing device one-level mulser, washing device one-level phase splitting device is provided with the import of washing device one-level mixed phase, washing device one-level heavy out and washing device one-level light phase export, the import of washing device one-level mulser is connected with washing device one-level detergent inlet and washing device one-level solvent inlet, and the outlet of washing device one-level mulser is connected with the import of washing device one-level mixed phase;
Back extraction device comprises back extraction device one-level mulser and back extraction device one-level phase splitting device, back extraction device one-level mulser is provided with mulser import of back extraction device one-level and the outlet of back extraction device one-level mulser, back extraction device one-level phase splitting device is provided with the import of back extraction device one-level mixed phase, back extraction device one-level heavy out and back extraction device one-level light phase export, the import of back extraction device one-level mulser is connected with reverse-extraction agent import of back extraction device one-level and back extraction device one-level solvent inlet, and the outlet of back extraction device one-level mulser is connected with the import of back extraction device one-level mixed phase.
Above-mentioned phosphoric acid purification device, wherein: washing device comprises washing device secondary mulser and washing device secondary phase splitting device, washing device secondary mulser is provided with mulser import of washing device secondary and the outlet of washing device secondary mulser, washing device secondary phase splitting device is provided with the import of washing device secondary mixed phase, washing device secondary heavy out and washing device secondary light phase export, the import of washing device secondary mulser is connected with washing device secondary detergent inlet and the import of washing device secondary solvent, and the outlet of washing device secondary mulser is connected with the import of washing device secondary mixed phase; Washing device one-level light phase export is connected with the import of washing device secondary solvent, and washing device secondary heavy out is connected with washing device one-level detergent inlet by pipeline, and washing device secondary light phase export is connected with back extraction device one-level solvent inlet;
Back extraction device comprises back extraction device secondary mulser and back extraction device secondary phase splitting device, back extraction device secondary mulser is provided with mulser import of back extraction device secondary and the outlet of back extraction device secondary mulser, back extraction device secondary phase splitting device is provided with the import of back extraction device secondary mixed phase, back extraction device secondary heavy out and back extraction device secondary light phase export, the import of back extraction device secondary mulser is connected with reverse-extraction agent import of back extraction device secondary and the import of back extraction device secondary solvent, and the outlet of back extraction device secondary mulser is connected with the import of back extraction device secondary mixed phase; Back extraction device one-level light phase export is connected with the import of back extraction device secondary solvent, and back extraction device secondary heavy out is connected with the import of back extraction device one-level reverse-extraction agent, and back extraction device secondary light phase export connects with the light import mutually of extraction plant sieve-tray tower.
Above-mentioned phosphoric acid purification device, wherein: washing device comprises three grades of mulsers of washing device and three grades of phase-splitting equipment of washing device, three grades of mulsers of washing device are provided with three grades of mulser imports of washing device and three grades of mulser outlets of washing device, three grades of phase-splitting equipment of washing device are provided with three grades of mixed phase imports of washing device, three grades of heavy outs of washing device and three grades of light phase exports of washing device, three grades of detergent inlet of three grades of mulser imports of washing device and washing device and three grades of solvent inlets of washing device are connected, and three grades of mulser outlets of washing device are connected with three grades of mixed phase imports of washing device; Three grades of solvent inlets of washing device secondary light phase export and washing device are connected, and three grades of heavy outs of washing device are connected with washing device secondary detergent inlet, and three grades of light phase exports of washing device are connected with back extraction device one-level solvent inlet;
Back extraction device comprises three grades of mulsers of back extraction device and three grades of phase-splitting equipment of back extraction device, three grades of mulsers of back extraction device are provided with three grades of mulser imports of back extraction device and three grades of mulser outlets of back extraction device, three grades of phase-splitting equipment of back extraction device are provided with three grades of mixed phase imports of back extraction device, three grades of heavy outs of back extraction device and three grades of light phase exports of back extraction device, three grades of reverse-extraction agent imports of three grades of mulser imports of back extraction device and back extraction device and three grades of solvent inlets of back extraction device are connected, and three grades of mulser outlets of back extraction device are connected with three grades of mixed phase imports of back extraction device; Three grades of solvent inlets of back extraction device secondary light phase export and back extraction device are connected, three grades of phase-splitting equipment of back extraction device heavy out is connected with the import of back extraction device secondary reverse-extraction agent, and three grades of phase-splittings of back extraction device are established light phase export and connected with the light import mutually of extraction plant sieve-tray tower.
Above-mentioned phosphoric acid purification device, wherein: the sieve diameter 10-18mm of body of the tower hypomere sieve plate, pitch of holes 20-36mm; The sieve diameter 8-16mm of body of the tower stage casing sieve plate, pitch of holes 16-32mm: the sieve diameter 7-14mm of body of the tower epimere sieve plate, pitch of holes 14-28mm.Body of the tower hypomere sieve plate spacing is 100-150mm; Body of the tower stage casing, epimere sieve plate spacing are 70-120mm.
The utility model compared with prior art as can be known from the above technical solutions, requires difference according to purifying, and wherein: extraction plant selects for use pulsed sieve plate column as mass transfer apparatus; Washing device and back extraction device, can select for use one group of mulser and phase splitting device single-stage or by many groups mulser and phase splitting device combine multistage.In the phosphoric acid purification process, feed phosphoric acid (fresh phosphoric) adds by the import of extraction plant sieve-tray tower heavy phase, and washing acid (purifying phosphoric acid), de-salted water add by final stage washing device detergent inlet, the import of back extraction device reverse-extraction agent.The no-load solvent of the light phase import of extraction plant sieve-tray tower is from the light phase export of back extraction device final stage phase splitting device, the loaded solvent of washing device one-level solvent inlet is from extraction plant sieve-tray tower light phase export, and the loaded solvent of back extraction device one-level solvent inlet is from the light phase export of washing device final stage phase splitting device.As can be known from the above technical solutions, add surge generator because of adopting sieve-tray tower, contact with material in the tower as pulsating medium with air, and surge generator does not directly contact with material, paired pulses generation equipment material is less demanding, and equipment amplifies easily; Sieve plate can effectively improve the material contact surface, the lift technique mass-transfer performance, thus can reduce equipment size, promptly can reduce the fill material amount, reduce system's start-stop car time; The design of clarifying chamber has up and down realized that mixing and phase-splitting finish in an equipment.Tower lower section sieve diameter and distance between plates can avoid a large amount of solid impurities to cause clogging of screen in the lower panel deposition from bigger than middle part and upper segment, influence mass-transfer efficiency.Sieve diameter can satisfy mass transfer effect in the 7-18mm scope, can reduce to stop up probability again; The liquidometer that connects outside the following clarifying chamber can help operator to understand the system interface changing conditions at any time, and the system of keeping balances each other, and makes things convenient for system to regulate.The mulser mass transfer area is big, the mass-transfer efficiency height.The mixed solution that comes out from mulser is easy to phase-splitting, thereby guarantees to divide phase effect.The purifying phosphoric acid foreign matter content that obtains is low, but by refining production food grade and electron-level phosphoric acid.System's material loading level is little, avoids hazardous material (fluids) (as phosphoric acid, organic extractant) to leak in a large number and the peace ring accident that causes; The mulser floor space is little, and appliance arrangement is arranged simple, and factory building can be realized miniaturization; The mulser cost is low, can save facility investment.
Description of drawings
Fig. 1 is the single step arrangement synoptic diagram of utility model;
Fig. 2 is the secondary structure synoptic diagram of utility model;
Fig. 3 is the tertiary structure synoptic diagram of utility model.
Mark among the figure:
1, goes up the clarifying chamber, 2, extraction plant sieve-tray tower light phase export, 3, the import of extraction plant sieve-tray tower heavy phase, 4, the heavy phase distribution plate, 5, body of the tower, 6, sieve plate, 7, light phase distribution plate, 8, liquidometer, 9, following clarifying chamber, 10, extraction plant sieve-tray tower raffinate relief outlet, 11, the light phase import of extraction plant sieve-tray tower, 12, surge generator.13, washing device one-level mulser, 14, washing device one-level phase splitting device, 15, the import of washing device one-level mulser, 16, the outlet of washing device one-level mulser, 17, the import of washing device one-level mixed phase, 18, washing device one-level heavy out, 19, washing device one-level light phase export, 20, washing device one-level detergent inlet, 21, washing device one-level solvent inlet, 22, washing device secondary mulser, 23, washing device secondary phase splitting device, 24, the import of washing device secondary mulser, 25, the outlet of washing device secondary mulser, 26, the import of washing device secondary mixed phase, 27, washing device secondary heavy out, 28, washing device secondary light phase export, 29, washing device secondary detergent inlet, 30, the import of washing device secondary solvent; 31, three grades of mulsers of washing device, 32, three grades of phase-splitting equipment of washing device, 33, three grades of mulser imports of washing device, 34, three grades of mulser outlets of washing device, 35, three grades of mixed phase imports of washing device, 36, three grades of heavy outs of washing device, 37, three grades of light phase exports of washing device, 38, three grades of detergent inlet of washing device, 39, three grades of solvent inlets of washing device, 40, back extraction device one-level mulser, 41, back extraction device one-level phase splitting device, 42, the import of back extraction device one-level mulser, 43, the outlet of back extraction device one-level mulser, 44, the import of back extraction device one-level mixed phase, 45, back extraction device one-level heavy out, 46, back extraction device one-level light phase export, 47, the import of back extraction device one-level reverse-extraction agent, 48, back extraction device one-level solvent inlet, 49, back extraction device secondary mulser, 50, back extraction device secondary phase splitting device, 51, the import of back extraction device secondary mulser, 52, the outlet of back extraction device secondary mulser, 53, the import of back extraction device secondary mixed phase, 54, back extraction device secondary heavy out, 55, back extraction device secondary light phase export, 56, the import of back extraction device secondary reverse-extraction agent, 57, the import of back extraction device secondary solvent; 58, three grades of mulsers of back extraction device, 59, three grades of phase-splitting equipment of back extraction device, 60, three grades of mulser imports of back extraction device, 61, three grades of mulser outlets of back extraction device, 62, three grades of mixed phase imports of back extraction device, 63, three grades of heavy outs of back extraction device, 64, three grades of light phase exports of back extraction device, 65, three grades of reverse-extraction agent imports of back extraction device, 66, three grades of solvent inlets of back extraction device.
Embodiment
Below in conjunction with accompanying drawing, its embodiment of phosphoric acid purification device, structure, feature and effect thereof to foundation the utility model proposes are described in detail as follows:
Referring to Fig. 1, adopt the phosphoric acid purification device of single-stage extraction, washing and back extraction, comprise extraction plant, washing device and back extraction device, wherein: extraction plant sieve-tray tower light phase export 2 is connected with washing device one-level solvent inlet 21, washing device one-level light phase export 19 is connected with back extraction device one-level solvent inlet 48, and back extraction device one-level light phase export 46 connects with the light import mutually 11 of extraction plant sieve-tray tower;
Extraction plant comprises sieve-tray tower and surge generator 12, and sieve-tray tower is made of the last clarifying chamber 1 at top, the body of the tower 5 at middle part and the following clarifying chamber 9 of bottom, and it is some that sieve plate 6 is housed in the body of the tower 5; Last clarifying chamber 1 is provided with extraction plant sieve-tray tower heavy phase import 3 and extraction plant sieve-tray tower light phase export 2, and the heavy phase distribution plate 4 in the import 3 of extraction plant sieve-tray tower heavy phase and the body of the tower 5 is communicated with; Following clarifying chamber 9 is provided with the extraction plant sieve-tray tower and gently enters the mouth 11 mutually, peripheral hardware liquidometer 8, the bottom is provided with extraction plant sieve-tray tower raffinate relief outlet 10, the extraction plant sieve-tray tower gently enter the mouth mutually 11 with body of the tower 5 in light distribution plate mutually 7 be communicated with; Surge generator 12 is connected with following clarifying chamber 9;
Washing device comprises washing device one-level mulser 13 and washing device one-level phase splitting device 14, washing device one-level mulser 13 is provided with washing device one-level mulser import 15 and washing device one-level mulser outlet 16, washing device one-level phase splitting device 14 is provided with washing device one-level mixed phase import 17, washing device one-level heavy out 18 and washing device one-level light phase export 19, washing device one-level mulser import 15 is connected with washing device one-level detergent inlet 20 and washing device one-level solvent inlet 21, and washing device one-level mulser outlet 16 is connected with washing device one-level mixed phase import 17;
Back extraction device comprises back extraction device one-level mulser 40 and back extraction device one-level phase splitting device 41, back extraction device one-level mulser 40 is provided with back extraction device one-level mulser import 42 and back extraction device one-level mulser outlet 43, back extraction device one-level phase splitting device 41 is provided with back extraction device one-level mixed phase import 44, back extraction device one-level heavy out 45 and back extraction device one-level light phase export 46, back extraction device one-level mulser import 42 is connected with back extraction device one-level reverse-extraction agent import 47 and back extraction device one-level solvent inlet 48, and back extraction device one-level mulser outlet 43 is connected with back extraction device one-level mixed phase import 44.
The sieve diameter 10-18mm of body of the tower 5 hypomere sieve plates 6, pitch of holes 20-36mm; The sieve diameter 8-16mm of body of the tower 5 stage casing sieve plates 6, pitch of holes 16-32mm: the sieve diameter 7-14mm of body of the tower 5 epimere sieve plates 6, pitch of holes 14-28mm.Body of the tower 5 hypomere sieve plate spacings are 100-150mm; Body of the tower 5 stage casings, epimere sieve plate spacing are 70-120mm.
During use, feed phosphoric acid (fresh phosphoric) enters body of the tower 5 from extraction plant sieve-tray tower heavy phase import 3 by heavy phase distribution plate 4, organic solvent enters body of the tower 5 from the light phase import 11 of extraction plant sieve-tray tower by light phase distribution plate 7, two materials are reverse contact in body of the tower 5, provide pulse power by surge generator 12, two materials are realized efficient mass transfer in tower.Phosphoric acid is entered by organic solvent extraction gently to be become the extraction loaded solvent mutually and rises to clarifying chamber 1 on the extraction plant sieve-tray tower, flows out from extraction plant sieve-tray tower light phase export 2 to enter washing device.Impurity in the phosphoric acid then enters heavy phase to be become raffinate and sinks to down clarifying chamber 9, discharges from extraction plant sieve-tray tower raffinate relief outlet 10, thereby realizes extracting and separating.
At washing device, purifying phosphoric acid enters washing device one-level mulser 13 from washing device one-level solvent inlet 21 by washing device one-level mulser import 15 from washing device one-level detergent inlet 20, the loaded solvent that comes from extraction plant, loaded solvent and phosphoric acid are finished the efficient mass transfer process in washing device one-level mulser 13, the mixed phase that forms comes out from washing device one-level mulser outlet 16, enters washing device one-level phase splitting device 14 by washing device one-level mixed phase import 17.In washing device one-level phase splitting device 14, realize the layering of mixed phase, light, the heavy two-phase that forms, impurity in the loaded solvent enters heavy phase to be become and washes spent acid and discharge from washing device one-level heavy out 18, be washed the loaded solvent that has purified and enter back extraction device, thereby realize washing, purifying from washing device one-level light phase export 19.
At back extraction device, de-salted water is from back extraction device one-level reverse-extraction agent import 47, enter back extraction device one-level mulser 40 from back extraction device one-level solvent inlet 48 by back extraction device one-level mulser import 42 from the loaded solvent of washing device, loaded solvent and de-salted water are finished the efficient mass transfer process in back extraction device one-level mulser 40, the mixed phase that forms comes out from back extraction device one-level mulser outlet 43, enters back extraction device one-level phase splitting device 41 by back extraction device one-level mixed phase import 44.In back extraction device one-level phase splitting device 41, realize the layering of mixed phase, light, the heavy two-phase that forms, phosphoric acid in the loaded solvent enters heavy phase becomes purifying phosphoric acid from 45 discharges of back extraction device one-level heavy out, loaded solvent removes and then becomes no-load solvent behind the phosphoric acid and return extraction plant from back extraction device one-level light phase export 46, thereby realizes recycling of extraction agent.
Referring to Fig. 2, the extraction of employing tower, the phosphoric acid purification device of two-stage washing and back extraction, comprise extraction plant, washing device and back extraction device, wherein: washing device comprises washing device secondary mulser 22 and washing device secondary phase splitting device 23, washing device secondary mulser 22 is provided with washing device secondary mulser import 24 and washing device secondary mulser outlet 25, washing device secondary phase splitting device 23 is provided with washing device secondary mixed phase import 26, washing device secondary heavy out 27 and washing device secondary light phase export 28, washing device secondary mulser import 24 is connected with washing device secondary detergent inlet 29 and washing device secondary solvent import 30, and washing device secondary mulser outlet 25 is connected with washing device secondary mixed phase import 26; Washing device one-level light phase export 19 is connected with washing device secondary solvent import 30, washing device secondary heavy out 27 is connected with washing device one-level detergent inlet 20 by pipeline, and washing device secondary light phase export 28 is connected with back extraction device one-level solvent inlet 48;
Back extraction device comprises back extraction device secondary mulser 49 and back extraction device secondary phase splitting device 50, back extraction device secondary mulser 49 is provided with back extraction device secondary mulser import 51 and back extraction device secondary mulser outlet 52, back extraction device secondary phase splitting device 50 is provided with back extraction device secondary mixed phase import 53, back extraction device secondary heavy out 54 and back extraction device secondary light phase export 55, back extraction device secondary mulser import 51 is connected with back extraction device secondary reverse-extraction agent import 56 and back extraction device secondary solvent import 57, and back extraction device secondary mulser outlet 52 is connected with back extraction device secondary mixed phase import 53; Back extraction device one-level light phase export 46 is connected with back extraction device secondary solvent import 57, and back extraction device secondary heavy out 54 is connected with back extraction device one-level reverse-extraction agent import 47, and back extraction device secondary light phase export 55 connects with the light import mutually 11 of extraction plant sieve-tray tower.All the other are with embodiment 1.
During use, at extraction plant, with embodiment 1.
At washing device, the phosphoric acid that washing device secondary heavy out 27 comes out, under the effect of pump, enter washing device one-level mulser 13 from washing device one-level solvent inlet 21 by washing device one-level mulser import 15 from washing device one-level detergent inlet 20, the loaded solvent that comes from extraction plant, loaded solvent and phosphoric acid are finished the efficient mass transfer process in washing device one-level mulser 13, the mixed phase that forms comes out from washing device one-level mulser outlet 16, enters washing device one-level phase splitting device 14 by washing device one-level mixed phase import 17.In washing device one-level phase splitting device 14, realize the layering of mixed phase, light, the heavy two-phase of formation.Impurity in the loaded solvent enters heavy phase to be become and washes spent acid and discharge from washing device one-level heavy out 18, be washed the loaded solvent that has purified and come out, under the effect of pump, enter washing device secondary mulser 22 by washing device secondary mulser import 24 through washing device secondary solvent import 30 from washing device one-level light phase export 19.Washing acid (purifying phosphoric acid) enters washing device secondary mulser 22 through washing device secondary detergent inlet 29 by washing device secondary mulser import 24, efficient mass transfer effect by washing device secondary mulser 22, further improve the molten washing effect of load, the mixed phase that forms comes out from washing device secondary mulser outlet 25, enter washing device secondary phase splitting device 23 by washing device secondary mixed phase import 26, in two washing device secondary phase splitting devices 23, realize the layering of mixed phase, what form is light, heavy two-phase, be washed the loaded solvent that has purified and enter back extraction device from washing device secondary light phase export 28, impurity in the loaded solvent enters heavy phase and returns washing device one-level mulser 13 by washing device secondary heavy out 27, thereby realizes washing, purifying.
At back extraction device, the phosphoric acid that back extraction device secondary heavy out 54 comes out, under the effect of pump, enter back extraction device one-level mulser 40 from back extraction device one-level solvent inlet 48 by back extraction device one-level mulser import 42 from back extraction device one-level reverse-extraction agent import 47, the loaded solvent that comes from washing device, loaded solvent and phosphoric acid are finished the efficient mass transfer process in back extraction device one-level mulser 40, the mixed phase that forms comes out from back extraction device one-level mulser outlet 43, enters back extraction device one-level phase splitting device 41 by back extraction device one-level mixed phase import 44.In back extraction device one-level phase splitting device 41, realize the layering of mixed phase, light, the heavy two-phase of formation.Phosphoric acid in the loaded solvent enters heavy phase becomes purifying phosphoric acid from 45 discharges of back extraction device one-level heavy out, the loaded solvent of being taken off part phosphoric acid comes out from back extraction device one-level light phase export 46, enters back extraction device secondary mulser 49 through back extraction device secondary solvent import 57 by back extraction device secondary mulser import 51 under the effect of pump.De-salted water enters back extraction device secondary mulser 49 through back extraction device secondary reverse-extraction agent import 56 by back extraction device secondary mulser import 51, efficient mass transfer effect by back extraction device secondary mulser 49, further improve the molten back extraction effect of load, the mixed phase that forms comes out from back extraction device secondary mulser outlet 52, enter back extraction device secondary phase splitting device 50 by back extraction device secondary mixed phase import 53, in back extraction device secondary phase splitting device 50, realize the layering of mixed phase, what form is light, heavy two-phase, loaded solvent removes and then becomes no-load solvent behind the phosphoric acid and return extraction plant from back extraction device secondary light phase export 55, and the phosphoric acid in the loaded solvent enters heavy phase and returns back extraction device one-level mulser 40 by back extraction device secondary heavy out 54.
Referring to Fig. 3, the extraction of employing tower, the three grades of washings and the phosphoric acid purification device of back extraction, comprise extraction plant, washing device and back extraction device, wherein: washing device comprises three grades of mulsers 31 of washing device and three grades of phase-splitting equipment 32 of washing device, three grades of mulsers 31 of washing device are provided with three grades of mulser imports 33 of washing device and three grades of mulser outlets 34 of washing device, three grades of phase-splitting equipment 32 of washing device are provided with three grades of mixed phase imports 35 of washing device, three grades of heavy outs 36 of washing device and three grades of light phase exports 37 of washing device, three grades of detergent inlet 38 of three grades of mulser imports 33 of washing device and washing device and three grades of solvent inlets 39 of washing device are connected, and three grades of mulsers of washing device outlet 34 is connected with three grades of mixed phase imports 35 of washing device; Three grades of solvent inlets 39 of washing device secondary light phase export 28 and washing device are connected, and three grades of heavy outs 36 of washing device are connected with washing device secondary detergent inlet 29, and three grades of light phase exports 37 of washing device are connected with back extraction device one-level solvent inlet 48;
Back extraction device comprises three grades of mulsers 58 of back extraction device and three grades of phase-splitting equipment 59 of back extraction device, three grades of mulsers 58 of back extraction device are provided with three grades of mulser imports 60 of back extraction device and three grades of mulser outlets 61 of back extraction device, three grades of phase-splitting equipment 59 of back extraction device are provided with three grades of mixed phase imports 62 of back extraction device, three grades of heavy outs 63 of back extraction device and three grades of light phase exports 64 of back extraction device, three grades of reverse-extraction agent imports 65 of three grades of mulser imports 60 of back extraction device and back extraction device and three grades of solvent inlets 66 of back extraction device are connected, and three grades of mulsers of back extraction device outlet 61 is connected with three grades of mixed phase imports 62 of back extraction device; Three grades of solvent inlets 66 of back extraction device secondary light phase export 55 and back extraction device are connected, three grades of phase-splitting equipment of back extraction device heavy out 63 is connected with back extraction device secondary reverse-extraction agent import 56, and three grades of phase-splittings of back extraction device are established light phase export 64 and connected with the light import mutually 11 of extraction plant sieve-tray tower.
All the other are with embodiment 2.
During use, at extraction plant, with embodiment 1.
At washing device, loaded solvent comes out from washing device secondary light phase export 28, enters washing device three grade mulsers 31 through three grades of detergent inlet 38 of washing device by three grades of mulser imports 33 of washing device through three grades of solvent inlets 39 of washing device, washing acid (purifying phosphoric acid) under the effect of pump.Efficient mass transfer effect by multistage mulser has improved the phosphoric acid washing effect as much as possible; The mixed phase that forms comes out from three grades of mulser outlets 34 of washing device, enter three grades of phase-splitting equipment 32 of washing device by three grades of mixed phase imports 35 of washing device, in three grades of phase-splitting equipment 32 of washing device, realize the layering of mixed phase, light, the heavy two-phase that forms, be washed the loaded solvent that has purified and come out to enter back extraction device from three grades of light phase exports of washing device 37, the impurity in the loaded solvent enters heavy phase and returns washing device secondary mulser 22 by three grades of heavy outs 36 of washing device.By three grades of washings, the impurity major part in the loaded solvent is entered heavy phase by phosphoric acid washing and finally discharges from washing device one-level heavy out 18, thereby realizes washing, purifying.
At back extraction device, the phosphoric acid that three grades of heavy outs 63 of back extraction device come out returns back extraction device secondary mulser 49 under the effect of pump; The loaded solvent that contains part phosphoric acid comes out from back extraction device secondary phase splitting device 50 light phase exports, under the effect of pump, enter three grades of mulsers 58 of back extraction device through three grades of reverse-extraction agent imports 65 of back extraction device by three grades of mulser imports 60 of back extraction device through three grades of solvent inlets 66 of back extraction device, de-salted water, by the efficient mass transfer effect of multistage mulser, improved phosphoric acid back extraction effect as much as possible; The mixed phase that forms comes out from three grades of mulser outlets 61 of back extraction device, enter three grades of phase-splitting equipment 59 of back extraction device by three grades of mixed phase imports 62 of back extraction device, in three grades of phase-splitting equipment 59 of back extraction device, realize the layering of mixed phase, light, the heavy two-phase that forms, loaded solvent removes and then becomes no-load solvent behind the phosphoric acid and come out to return extraction plant from three grades of light phase exports of back extraction device 64, and the phosphoric acid in the loaded solvent enters heavy phase and returns back extraction device secondary mulser 49 by back extraction device heavy out 63.By three grades of back extractions, the phosphoric acid in the loaded solvent is desalted the water back extraction and enters heavy phase finally from 45 discharges of back extraction device one-level heavy out, becomes purifying phosphoric acid.All the other principle of work are with embodiment 2.
Above mulser all adopts the pipeline high-shearing dispersion emulsifying machine.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, any technical solutions of the utility model content that do not break away from,, all still belong in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present utility model.
Claims (4)
1. phosphoric acid purification device, comprise extraction plant, washing device and back extraction device, it is characterized in that: extraction plant sieve-tray tower light phase export (2) is connected with washing device one-level solvent inlet (21), washing device one-level light phase export (19) is connected with back extraction device one-level solvent inlet (48), and back extraction device one-level light phase export (46) connects with the light import mutually of extraction plant sieve-tray tower (11);
Extraction plant comprises sieve-tray tower and surge generator (12), and sieve-tray tower is made of the last clarifying chamber (1) at top, the body of the tower (5) at middle part and the following clarifying chamber (9) of bottom, and it is some that sieve plate (6) is housed in the body of the tower (5); Last clarifying chamber (1) is provided with extraction plant sieve-tray tower heavy phase import (3) and extraction plant sieve-tray tower light phase export (2), and the heavy phase distribution plate (4) in extraction plant sieve-tray tower heavy phase import (3) and the body of the tower (5) is communicated with; Following clarifying chamber (9) be provided with the extraction plant sieve-tray tower gently mutually the inlet (11), peripheral hardware liquidometer (8), the bottom is provided with extraction plant sieve-tray tower raffinate relief outlet (10), and the light distribution plate mutually (7) that the extraction plant sieve-tray tower gently enters the mouth (11) mutually and body of the tower (5) is interior is communicated with; Surge generator (12) is connected with following clarifying chamber (9);
Washing device comprises washing device one-level mulser (13) and washing device one-level phase splitting device (14), washing device one-level mulser (13) is provided with washing device one-level mulser import (15) and washing device one-level mulser outlet (16), washing device one-level phase splitting device (14) is provided with washing device one-level mixed phase import (17), washing device one-level heavy out (18) and washing device one-level light phase export (19), washing device one-level mulser import (15) is connected with washing device one-level detergent inlet (20) and washing device one-level solvent inlet (21), and washing device one-level mulser outlet (16) is connected with washing device one-level mixed phase import (17);
Back extraction device comprises back extraction device one-level mulser (40) and back extraction device one-level phase splitting device (41), back extraction device one-level mulser (40) is provided with back extraction device one-level mulser import (42) and back extraction device one-level mulser outlet (43), back extraction device one-level phase splitting device (41) is provided with back extraction device one-level mixed phase import (44), back extraction device one-level heavy out (45) and back extraction device one-level light phase export (46), back extraction device one-level mulser import (42) is connected with back extraction device one-level reverse-extraction agent import (47) and back extraction device one-level solvent inlet (48), and back extraction device one-level mulser outlet (43) is connected with back extraction device one-level mixed phase import (44).
2. phosphoric acid purification device as claimed in claim 1 is characterized in that:
Washing device comprises washing device secondary mulser (22) and washing device secondary phase splitting device (23), washing device secondary mulser (22) is provided with washing device secondary mulser import (24) and washing device secondary mulser outlet (25), washing device secondary phase splitting device (23) is provided with washing device secondary mixed phase import (26), washing device secondary heavy out (27) and washing device secondary light phase export (28), washing device secondary mulser import (24) is connected with washing device secondary detergent inlet (29) and washing device secondary solvent import (30), and washing device secondary mulser outlet (25) is connected with washing device secondary mixed phase import (26); Washing device one-level light phase export (19) is connected with washing device secondary solvent import (30), washing device secondary heavy out (27) is connected with washing device one-level detergent inlet (20) by pipeline, and washing device secondary light phase export (28) is connected with back extraction device one-level solvent inlet (48);
Back extraction device comprises back extraction device secondary mulser (49) and back extraction device secondary phase splitting device (50), back extraction device secondary mulser (49) is provided with back extraction device secondary mulser import (51) and back extraction device secondary mulser outlet (52), back extraction device secondary phase splitting device (50) is provided with back extraction device secondary mixed phase import (53), back extraction device secondary heavy out (54) and back extraction device secondary light phase export (55), back extraction device secondary mulser import (51) is connected with back extraction device secondary reverse-extraction agent import (56) and back extraction device secondary solvent import (57), and back extraction device secondary mulser outlet (52) is connected with back extraction device secondary mixed phase import (53); Back extraction device one-level light phase export (46) is connected with back extraction device secondary solvent import (57), back extraction device secondary heavy out (54) is connected with back extraction device one-level reverse-extraction agent import (47), and back extraction device secondary light phase export (55) connects with the light import mutually of extraction plant sieve-tray tower (11).
3. phosphoric acid purification device as claimed in claim 2 is characterized in that:
Washing device comprises three grades of mulsers of washing device (31) and three grades of phase-splitting equipment of washing device (32), three grades of mulsers of washing device (31) are provided with three grades of mulser imports of washing device (33) and three grades of mulser outlets of washing device (34), three grades of phase-splitting equipment of washing device (32) are provided with three grades of mixed phase imports of washing device (35), three grades of light phase exports of three grades of heavy outs of washing device (36) and washing device (37), three grades of mulser imports of washing device (33) are connected with three grades of detergent inlet of washing device (38) and three grades of solvent inlets of washing device (39), and three grades of mulser outlets of washing device (34) are connected with three grades of mixed phase imports of washing device (35); Washing device secondary light phase export (28) is connected with three grades of solvent inlets of washing device (39), three grades of heavy outs of washing device (36) are connected with washing device secondary detergent inlet (29), and three grades of light phase exports of washing device (37) are connected with back extraction device one-level solvent inlet (48);
Back extraction device comprises three grades of mulsers of back extraction device (58) and three grades of phase-splitting equipment of back extraction device (59), three grades of mulsers of back extraction device (58) are provided with three grades of mulser imports of back extraction device (60) and three grades of mulser outlets of back extraction device (61), three grades of phase-splitting equipment of back extraction device (59) are provided with three grades of mixed phase imports of back extraction device (62), three grades of light phase exports of three grades of heavy outs of back extraction device (63) and back extraction device (64), three grades of mulser imports of back extraction device (60) are connected with three grades of reverse-extraction agent imports of back extraction device (65) and three grades of solvent inlets of back extraction device (66), and three grades of mulser outlets of back extraction device (61) are connected with three grades of mixed phase imports of back extraction device (62); Back extraction device secondary light phase export (55) is connected with three grades of solvent inlets of back extraction device (66), three grades of phase-splitting equipment of back extraction device heavy out (63) is connected with back extraction device secondary reverse-extraction agent import (56), and three grades of phase-splittings of back extraction device are established light phase export (64) and connected with the light import mutually of extraction plant sieve-tray tower (11).
4. phosphoric acid purification device as claimed in claim 2 is characterized in that: the sieve diameter 10-18mm of body of the tower (5) hypomere sieve plate (6), pitch of holes 20-36mm; The sieve diameter 8-16mm of body of the tower (5) stage casing sieve plate (6), pitch of holes 16-32mm: the sieve diameter 7-14mm of body of the tower (5) epimere sieve plate (6), pitch of holes 14-28mm.Body of the tower (5) hypomere sieve plate spacing is 100-150mm; Body of the tower (5) stage casing, epimere sieve plate spacing are 70-120mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201990082U CN201694844U (en) | 2010-05-21 | 2010-05-21 | Phosphoric acid purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201990082U CN201694844U (en) | 2010-05-21 | 2010-05-21 | Phosphoric acid purifying device |
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| Publication Number | Publication Date |
|---|---|
| CN201694844U true CN201694844U (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201990082U Expired - Fee Related CN201694844U (en) | 2010-05-21 | 2010-05-21 | Phosphoric acid purifying device |
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| Country | Link |
|---|---|
| CN (1) | CN201694844U (en) |
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- 2010-05-21 CN CN2010201990082U patent/CN201694844U/en not_active Expired - Fee Related
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