CN201737704U

CN201737704U - Phosphoric acid purifier

Info

Publication number: CN201737704U
Application number: CN2010202826757U
Authority: CN
Inventors: 王邵东; 王权顶; 骆广生
Original assignee: Wengfu Group Co Ltd
Current assignee: Wengfu Group Co Ltd
Priority date: 2010-08-05
Filing date: 2010-08-05
Publication date: 2011-02-09
Anticipated expiration: 2020-08-05

Abstract

The utility model discloses a phosphoric acid purifier which includes an extraction plant, a cleaning device and a back extraction plant; wherein the combination of two groups of emulsion machines and phase splitters is selected as the extraction plant; or the extraction plant is formed by increasing the combination of one group or a plurality of emulsion machines and phase splitters based on the combination; the combination of one group of emulsion machines and one group of mixers and phase splitters is selected as the cleaning device; or the cleaning device is formed by increasing the combination of one group or a plurality of mixers and phase splitters based on the combination; and the combination of two groups of emulsion machines and phase splitters is selected as the back extraction plant; or the back extraction plant is formed by increasing the combination of one group or a plurality of emulsion machines and phase splitters based on the combination. The primary solvent inlet of the extraction plant is connected with the last light phase outlet of the back extraction plant; the primary solvent inlet of the cleaning device is connected with the last light phase outlet of the extraction plant; and the primary solvent inlet of the back extraction plant is connected with the last light phase outlet of the cleaning device. The phosphoric acid purifier can strengthen mass transfer performance, improve purifying efficiency, reduce plant investment and running cost, and occupies a small area.

Description

Phosphoric acid purification device

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 and 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 mulser 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; Sieve-tray tower, the weight two-phase is made counter-current flow in tower, and two-phase is the cross-flow contact on every block of column plate, and this tower mass-transfer efficiency is than higher, but its internal structure is complicated, and manufacturing cost is higher, the internal cleaning difficulty; Packing tower, the packing tower structure is simple relatively, but efficient is lower, can not be used to have the material of solid particulate and easy fouling; Pulsed packed tower and pulsed sieve plate column, in order to improve the two-phase contact condition, the reinforcing mass transfer process, add mechanical energy causing pulsation at packing tower and sieve-tray tower, and the generation of pulsation is realized by reciprocation pump or pressurized air usually, this kind equipment mass-transfer efficiency height, but manufacturing cost is higher, the internal cleaning difficulty, and working cost is higher; Sieve plate is fixed on the central shaft in the oscillating screen plate tower, oscillating screen plate tower, is driven by toggle, and this tower is limited by equipment material, and it is very difficult to maximize, and working cost is higher.

Mulser has important application in numerous hybrid reactions fields such as chemistry, chemical industry, petrochemical industry, medicine and food.This equipment mass transfer area is big, the reaction conversion ratio height; Cost of equipment is low, and is simple to operate; Regulate single passage width and parallel access volume and accomplish scale production, the device processes amount is big.Chinese patent publication number CN1658807A, disclosed on 02 22nd, 2006 " a kind of multi-channeled micro-structured reactor ", continuous phase fluid enters reactor from the inlet tube distribution chamber in this reactor, dispersed phase fluid is passed dispersion medium and is entered the external phase parallel channels, under continuous phase fluid flows shear action, be dispersed into fine droplet or bubble, contact, realize short mix and reaction between two-phase fluid with continuous phase fluid.

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.Mixing tank 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 facility investment and working cost and the little phosphoric acid purification device of floor space.

A kind of phosphoric acid purification device of the present utility model, comprise extraction plant, washing device and back extraction device, wherein: extraction plant secondary light phase export is connected with washing device one-level solvent inlet, washing device secondary light phase export is connected with back extraction device one-level solvent inlet, and back extraction device secondary phase splitting device light phase export is connected with extraction plant one-level solvent inlet;

Extraction plant comprises extraction plant one-level mulser and extraction plant one-level phase splitting device, extraction plant secondary mulser and extraction plant secondary phase splitting device, extraction plant one-level mulser is provided with mulser import of extraction plant one-level and the outlet of extraction plant one-level mulser, extraction plant one-level phase splitting device is provided with the import of extraction plant one-level mixed phase, extraction plant one-level heavy out and extraction plant one-level light phase export, the import of extraction plant one-level mulser is connected with phosphoric acid import of extraction plant one-level and extraction plant one-level solvent inlet, and the outlet of extraction plant one-level mulser is connected with the import of extraction plant one-level mixed phase; Extraction plant secondary mulser is provided with mulser import of extraction plant secondary and the outlet of extraction plant secondary mulser, extraction plant secondary phase splitting device is provided with the import of extraction plant secondary mixed phase, extraction plant secondary heavy out and extraction plant secondary light phase export, the import of extraction plant secondary mulser is connected with phosphoric acid import of extraction plant secondary and the import of extraction plant secondary solvent, and the outlet of extraction plant secondary mulser is connected with the import of extraction plant secondary mixed phase; Extraction plant one-level light phase export is connected with the import of extraction plant secondary solvent, and extraction plant secondary heavy out is connected with the import of extraction plant one-level phosphoric acid.

Washing device comprises washing device mulser A and washing device one-level phase splitting device A, washing device mixing tank A and washing device phase splitting device B, washing device mulser A is provided with washing device mulser A import, washing device mulser A outlet, washing device phase splitting device A is provided with the import of washing device phase splitting device A mixed phase, washing device phase splitting device A heavy out and washing device phase splitting device A light phase export, washing device mulser A import is connected with washing device one-level solvent inlet with the import of washing device phosphoric acid, and washing device mulser A outlet is connected with the import of washing device phase splitting device A mixed phase; Washing device mixing tank A is provided with washing device mixing tank A continuous phase fluid inlet, washing device mixing tank A dispersed phase fluid inlet and the outlet of washing device mixing tank A mixed phase fluid, washing device phase splitting device B is provided with the import of washing device phase splitting device B mixed phase, washing device phase splitting device B light phase export and washing device phase splitting device B heavy out, and the outlet of washing device mixing tank A mixed phase fluid is connected with the import of washing device phase splitting device B mixed phase; Washing device phase splitting device A light phase export is connected with washing device mixing tank A continuous phase fluid inlet, and washing device phase splitting device B heavy out is connected with the import of washing device phosphoric acid;

Back extraction device comprises back extraction device one-level mulser and back extraction device one-level phase splitting device, back extraction device secondary mulser and back extraction device secondary 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 back extraction device one-level solvent inlet with the import of back extraction device one-level reverse-extraction agent, and the outlet of back extraction device one-level mulser is connected with the import of back extraction device one-level mixed phase; 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, import is connected the import of back extraction device secondary mulser with the back extraction device secondary solvent with the import of back extraction device secondary reverse-extraction agent, 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.

Above-mentioned phosphoric acid purification device, wherein: three grades of mulsers of extraction plant and three grades of phase-splitting equipment, three grades of mulsers of extraction plant are provided with three grades of mulser imports of extraction plant and three grades of mulser outlets of extraction plant, three grades of phase-splitting equipment of extraction plant are provided with three grades of mixed phase imports of extraction plant, three grades of heavy outs of extraction plant and three grades of light phase exports of extraction plant, three grades of phosphoric acid imports of three grades of mulser imports of extraction plant and extraction plant and three grades of solvent inlets of extraction plant are connected, and three grades of mulser outlets of extraction plant are connected with three grades of mixed phase imports of extraction plant; Three grades of solvent inlets of extraction plant secondary light phase export and extraction plant are connected, and three grades of heavy outs of extraction plant are connected with the import of extraction plant secondary phosphoric acid, and three grades of phase-splitting equipment of extraction plant light phase export is connected with washing device one-level colvent inlet;

Washing device comprises washing device mixing tank B and washing device phase splitting device C, washing device mixing tank B is provided with washing device mixing tank B continuous phase fluid inlet, washing device mixing tank B dispersed phase fluid inlet and the outlet of washing device mixing tank B mixed phase fluid, washing device phase splitting device C is provided with the import of washing device phase splitting device C mixed phase, washing device phase splitting device C light phase export and washing device phase splitting device C heavy out, and the outlet of washing device mixing tank B mixed phase fluid is connected with the import of washing device phase splitting device C mixed phase; Washing device phase splitting device B light phase export is connected with washing device mixing tank B continuous phase fluid inlet, washing device phase splitting device C heavy out is connected with washing device mixing tank A dispersed phase fluid inlet, and washing device phase splitting device C light phase export is 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 are connected with three grades of solvent inlets of back extraction device, 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, and three grades of heavy outs of back extraction device are connected with the import of back extraction device secondary reverse-extraction agent, and three grades of light phase exports of back extraction device are connected with extraction plant one-level solvent inlet.

Washing device comprises three grades of mulser B of washing device and three grades of phase-splitting equipment of washing device D, three grades of mulser B of washing device are provided with three grades of mulser B of washing device import, three grades of mulser B outlets of washing device, three grades of phase-splitting equipment of washing device D is provided with the import of three grades of phase-splitting equipment of washing device D mixed phase, three grades of phase-splitting equipment of washing device D heavy out and three grades of phase-splitting equipment of washing device D light phase export, three grades of phosphoric acid imports of washing device mulser B import and washing device are connected with three grades of solvent inlets of washing device, and washing device mulser B outlet is connected with the import of three grades of phase-splitting equipment of washing device D mixed phase; Three grades of phase-splitting equipment of washing device D light phase export is connected with three grades of solvent inlets of washing device, three grades of phase-splitting equipment of washing device D heavy out is connected with washing device mixing tank A secondary dispersed phase fluid inlet, and three grades of phase-splitting equipment of washing device D light phase export is connected with back extraction device one-level solvent inlet.

Above-mentioned phosphoric acid purification device, wherein: phase splitting device is the destination device that phase-splitting groove, clarifying tank etc. reach phase-splitting

Above-mentioned phosphoric acid purification device, wherein: mulser is the pipeline high-shearing dispersion emulsifying machine.

The utility model compared with prior art, has tangible beneficial effect, as can be known from the above technical solutions, require difference according to purifying, constitute extraction plant, washing device and the back extraction device of phosphoric acid purification device, wherein: extraction plant is selected the combination of two-stage group mulser and phase splitting device for use or increase by one group on aforesaid combination and combined by many groups mulser and phase splitting device; Washing device is selected the combination of one group of mulser and phase splitting device and one group of mixing tank and phase splitting device for use, or on aforesaid combination, increasing one or more groups mixing tank and phase splitting device (or mulser and phase splitting device) constitutes, back extraction device is selected the combination of two groups of mulsers and phase splitting device for use or increase by one group on aforesaid combination and combined by many groups mulser and phase splitting device.In the phosphoric acid purification process, feed phosphoric acid (fresh phosphoric), de-salted water add by the import of final stage extraction plant mulser phosphoric acid, the import of final stage back extraction device mulser reverse-extraction agent; Washing acid (purifying phosphoric acid), dispersed phase fluid inlet, phosphoric acid import adding by final stage washing device mixing tank, mulser.The no-load solvent of extraction plant one-level solvent inlet is from back extraction device final stage light phase export, the loaded solvent of washing device continuous phase fluid inlet is from extraction plant final stage light phase export, and the loaded solvent of back extraction device one-level solvent inlet is from washing device final stage light phase export.Because mixing tank, mulser mass transfer area are big, the mass-transfer efficiency height.The mixed solution that comes out from mixing tank, 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; Mixing tank, mulser floor space are little, and appliance arrangement is arranged simple, and factory building can be realized miniaturization; Mixing tank, mulser cost are low, can save facility investment.

Description of drawings

Fig. 1 is embodiment 1 structural representation;

Fig. 2 is embodiment 2 structural representations;

Fig. 3 is embodiment 3 structural representations.

Mark among the figure:

1, extraction plant one-level mulser, 2, extraction plant one-level phase splitting device, 3, the import of extraction plant one-level mulser, 4, the outlet of extraction plant one-level mulser, 5, the import of extraction plant one-level mixed phase, 6, extraction plant one-level heavy out, 7, extraction plant one-level light phase export, 8, the import of extraction plant one-level phosphoric acid, 9, extraction plant one-level solvent inlet, 10, extraction plant secondary mulser, 11, extraction plant secondary phase splitting device, 12, the import of extraction plant secondary mulser, 13, the outlet of extraction plant secondary mulser, 14, the import of extraction plant secondary mixed phase, 15, extraction plant secondary heavy out, 16, extraction plant secondary light phase export, 17, the import of extraction plant secondary phosphoric acid, 18, the import of extraction plant secondary solvent, 19, three grades of mulsers of extraction plant, 20, three grades of phase-splitting equipment of extraction plant, 21, three grades of mulser imports of extraction plant, 22, three grades of mulser outlets of extraction plant, 23, three grades of mixed phase imports of extraction plant, 24, three grades of heavy outs of extraction plant, 25, three grades of light phase exports of extraction plant, 26, three grades of phosphoric acid imports of extraction plant, 27, three grades of solvent inlets of extraction plant, 28, washing device mulser A, 29, washing device phase splitting device A, 30, washing device mulser A import, 31, washing device mulser A outlet, 32, the import of washing device phase splitting device A mixed phase, 33, washing device phase splitting device A heavy out, 34, washing device one-level phase splitting device A light phase export, 35, the import of washing device phosphoric acid, 36, the washing device solvent inlet, 37, washing device mixing tank A, 38, washing device phase splitting device B, 39, washing device mixing tank A continuous phase fluid inlet, 40, washing device mixing tank A dispersed phase fluid inlet, 41, the outlet of washing device mixing tank A mixed phase fluid, 42, the import of washing device phase splitting device B mixed phase, 43, washing device phase splitting device B light phase export, 44, washing device phase splitting device B heavy out, 45, washing device mixing tank B, 46, washing device phase splitting device C, 47, washing device mixing tank B continuous phase fluid inlet, 48, washing device mixing tank B dispersed phase fluid inlet, 49, the outlet of washing device mixing tank B mixed phase fluid, 50, the import of washing device phase splitting device C mixed phase, 51, washing device phase splitting device C light phase export, 52, washing device phase splitting device C heavy out, 53, washing device mulser B, 54, washing device phase splitting device D, 55, washing device mulser B import, 56, washing device mulser B outlet, 57, three grades of phosphoric acid imports of washing device, 58, three grades of solvent inlets of washing device, 59, the import of washing device phase splitting device D mixed phase, 60, washing device phase splitting device D light phase export, 61, washing device phase splitting device D heavy out, 62, back extraction device one-level mulser, 63, back extraction device one-level phase splitting device, 64, the import of back extraction device one-level mulser, 65, the outlet of back extraction device one-level mulser, 66, the import of back extraction device one-level reverse-extraction agent, 67, back extraction device one-level solvent inlet, 68, the import of back extraction device one-level mixed phase, 69, back extraction device one-level light phase export, 70, back extraction device one-level heavy out, 71, back extraction device secondary mulser, 72, back extraction device secondary phase splitting device, 73, the import of back extraction device secondary mulser, 74, the outlet of back extraction device secondary mulser, 75, the import of back extraction device secondary mixed phase, 76, back extraction device secondary heavy out, 77, back extraction device secondary light phase export, 78, the import of back extraction device secondary reverse-extraction agent, 79, the import of back extraction device secondary solvent, 80, three grades of mulsers of back extraction device, 81, three grades of phase-splitting equipment of back extraction device, 82, three grades of mulser imports of back extraction device, 83, three grades of mulser outlets of back extraction device, 84, three grades of mixed phase imports of back extraction device, 85, three grades of light phase exports of back extraction device, 86, three grades of heavy outs of back extraction device, 87, three grades of reverse-extraction agent imports of back extraction device, 88, 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:

Embodiment 1

Referring to Fig. 1, adopt the phosphoric acid purification device of two-stage extraction, washing and back extraction, comprise extraction plant, washing device and back extraction device, wherein: extraction plant secondary light phase export 16 is connected with washing device one-level solvent inlet 36, washing device secondary light phase export 43 is connected with back extraction device one-level solvent inlet 67, and back extraction device secondary light phase export 77 is connected with extraction plant one-level solvent inlet 9;

Extraction plant comprises extraction plant one-level mulser 1 and extraction plant one-level phase splitting device 2, extraction plant secondary mulser 10 and extraction plant secondary phase splitting device 11, extraction plant one-level mulser 1 is provided with extraction plant one-level mulser import 3 and extraction plant one-level mulser outlet 4, extraction plant one-level phase splitting device 2 is provided with extraction plant one-level mixed phase import 5, extraction plant one-level heavy out 6 and extraction plant one-level light phase export 7, extraction plant one-level mulser import 3 is connected with extraction plant one-level phosphoric acid import 8 and extraction plant one-level solvent inlet 9, and extraction plant one-level mulser outlet 4 is connected with extraction plant one-level mixed phase import 5; Extraction plant secondary mulser 10 is provided with extraction plant secondary mulser import 12 and extraction plant secondary mulser outlet 13, extraction plant secondary phase splitting device 11 is provided with extraction plant secondary mixed phase import 14, extraction plant secondary heavy out 15 and extraction plant secondary light phase export 16, extraction plant secondary mulser import 12 is connected with extraction plant secondary phosphoric acid import 17 and extraction plant secondary solvent import 18, and extraction plant secondary mulser outlet 13 is connected with extraction plant secondary mixed phase import 14; Extraction plant one-level light phase export 7 is connected with extraction plant secondary solvent import 18, and extraction plant secondary heavy out 15 is connected with extraction plant one-level phosphoric acid import 8;

Washing device comprises washing device mulser A28 and washing device phase splitting device A29, washing device mixing tank A37 and washing device phase splitting device B38, washing device mulser A28 is provided with washing device mulser A import 30, washing device mulser A outlet 31, washing device phase splitting device A29 is provided with washing device phase splitting device A mixed phase import 32, washing device phase splitting device A heavy out 33 and washing device phase splitting device A light phase export 34, washing device mulser A import 30 is connected with washing device solvent inlet 36 with washing device phosphoric acid import 35, and washing device mulser outlet 31 is connected with washing device phase splitting device A mixed phase import 32; Washing device mixing tank A37 is provided with washing device mixing tank A continuous phase fluid inlet 39, washing device mixing tank A dispersed phase fluid inlet 40 and washing device mixing tank A mixed phase fluid outlet 41, washing device phase splitting device B38 is provided with washing device phase splitting device B mixed phase import 42, washing device phase splitting device B light phase export 43 and washing device phase splitting device B heavy out 44, and washing device mixing tank A mixed phase fluid outlet 41 is connected with washing device phase splitting device B mixed phase import 42; Washing device phase splitting device A light phase export 34 is connected with washing device mixing tank A continuous phase fluid inlet 39, and washing device phase splitting device B heavy out 44 is connected with washing device phosphoric acid import 35;

Back extraction device comprises back extraction device one-level mulser 62 and back extraction device one-level phase splitting device 63, back extraction device secondary mulser 71 and back extraction device secondary phase splitting device 72, back extraction device one-level mulser 62 is provided with back extraction device one-level mulser import 64 and back extraction device one-level mulser outlet 65, back extraction device one-level phase splitting device 63 is provided with back extraction device one-level mixed phase import 68, back extraction device one-level heavy out 70 and back extraction device one-level light phase export 69, back extraction device one-level mulser import 64 is connected with back extraction device one-level solvent inlet 67 with back extraction device one-level reverse-extraction agent import 66, and back extraction device one-level mulser outlet 65 is connected with back extraction device one-level mixed phase import 68; Back extraction device secondary mulser 71 is provided with back extraction device secondary mulser import 73 and back extraction device secondary mulser outlet 74, back extraction device secondary phase splitting device 72 is provided with back extraction device secondary mixed phase import 75, back extraction device secondary heavy out 76 and back extraction device secondary light phase export 77, back extraction device secondary mulser import 73 is connected with back extraction device secondary solvent import 79 with back extraction device secondary reverse-extraction agent import 78, and back extraction device secondary mulser outlet 74 is connected with back extraction device secondary mixed phase import 75; Back extraction device one-level light phase export 69 is connected with back extraction device secondary solvent import 79, and back extraction device secondary heavy out 76 is connected with back extraction device one-level reverse-extraction agent import 66.

During use: at extraction plant, the phosphoric acid that extraction plant secondary heavy out 15 comes out, under the effect of pump from extraction plant one-level phosphoric acid import 8, extraction agent (from the no-load solvent of back extraction device secondary light phase export 77) enters extraction plant one-level mulser 1 from extraction plant one-level solvent inlet 9 by extraction plant one-level mulser import 3, extraction agent and phosphoric acid are finished the efficient mass transfer process in extraction plant one-level mulser 1, the mixed phase that forms comes out from extraction plant one-level mulser outlet 4, enters extraction plant one-level phase splitting device 2 by extraction plant one-level mixed phase import 5; In extraction plant one-level phase splitting device 2, realize the layering of mixed phase, light, the heavy two-phase of formation; Impurity in the phosphoric acid enters heavy phase becomes raffinate from 6 discharges of extraction plant one-level heavy out; Phosphoric acid is extracted agent extraction to be become loaded solvent and comes out from extraction plant one-level light phase export 7, enters extraction plant secondary mulser 10 through extraction plant secondary solvent import 18 by extraction plant secondary mulser import 12 under the effect of pump; Feed phosphoric acid (fresh phosphoric) enters extraction plant secondary mulser 10 through extraction plant secondary phosphoric acid import 17 by extraction plant secondary mulser import 12, efficient mass transfer effect by extraction plant secondary mulser 10, further improve the phosphoric acid extraction rate, the mixed phase that forms comes out from extraction plant secondary mulser outlet 13, enter extraction plant secondary phase splitting device 11 by extraction plant secondary mixed phase import 14, in extraction plant secondary phase splitting device 11, realize the layering of mixed phase, what form is light, heavy two-phase, most of phosphoric acid is extracted the agent extraction and enters and gently form loaded solvent mutually and enter washing device from extraction plant secondary light phase export 16, heavy phase is then returned extraction plant one-level mulser 1 by extraction plant secondary heavy out 15, thereby realizes extracting and separating.

At washing device, the phosphoric acid that comes out from washing device secondary phase splitting device B heavy out 44 under the effect of pump from washing device phosphoric acid import 35, loaded solvent from extraction plant secondary phase splitting device light phase export 16 all enters washing device mulser A28 by washing device mulser A import 30 from washing device solvent inlet 36, loaded solvent and phosphoric acid are finished the efficient mass transfer process in washing device mulser A28, the mixed phase that forms comes out from washing device mulser A outlet 31, enters washing device phase splitting device A29 by washing device phase splitting device A mixed phase import 32; In washing device phase splitting device A29, 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 phase splitting device A heavy out 33, loaded solvent comes out from washing device phase splitting device A light phase export 34, enters washing device mixing tank A37 through washing device mixing tank A continuous phase fluid inlet 39 under the effect of pump; Purifying phosphoric acid enters washing device mixing tank A 37 through washing device mixing tank A dispersed phase fluid inlet 40, efficient mass transfer effect by washing device mixing tank A 37, further improve washing effect, the mixed phase that forms comes out from washing device mixing tank A mixed phase fluid outlet 41, enter washing device phase splitting device B 38 by washing device phase splitting device B mixed phase import 42, in washing device phase splitting device B 38, realize the layering of mixed phase, what form is light, heavy two-phase, heavy phase is then returned washing device mulser A28 by washing device phase splitting device B heavy out 44, loaded solvent enters back extraction device one-level colvent inlet 67 from washing device phase splitting device B light phase export 43 after being cleaned phosphoric acid washing, realizes washing, purifying.

At back extraction device, the phosphoric acid that back extraction device secondary heavy out 76 comes out, under the effect of pump, enter back extraction device one-level mulser 62 from back extraction device one-level solvent inlet 67 by back extraction device one-level mulser import 64 from back extraction device one-level reverse-extraction agent import 66, 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 62, the mixed phase that forms comes out from back extraction device one-level mulser outlet 65, enters back extraction device one-level phase splitting device 63 by back extraction device one-level mixed phase import 68.In back extraction device one-level phase splitting device 63, 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 70 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 69, enters back extraction device secondary mulser 71 through back extraction device secondary solvent import 79 under the effect of pump.Reverse-extraction agent enters back extraction device secondary mulser 71 through back extraction device secondary reverse-extraction agent import 78, efficient mass transfer effect by back extraction device secondary mulser 71, further improve the molten back extraction effect of load, the mixed phase that forms comes out from back extraction device secondary mulser outlet 74, enter back extraction device secondary phase splitting device 72 by back extraction device secondary mixed phase import 75, in back extraction device secondary phase splitting device 72, realize the layering of mixed phase, what form is light, heavy two-phase, the phosphoric acid in the loaded solvent enters heavy phase and returns back extraction device one-level mulser 62 by back extraction device secondary heavy out 76.Loaded solvent removes and then becomes no-load solvent behind the phosphoric acid and return the one-level extraction plant from back extraction device secondary light phase export 77, realizes the recycle of extraction agent.

Embodiment 2

Referring to Fig. 2, adopt three grades of extractions, the phosphoric acid purification device of washing and back extraction, comprise extraction plant, washing device and back extraction device, wherein: extraction plant comprises three grades of mulsers 19 of extraction plant and three grades of phase-splitting equipment 20 of extraction plant, three grades of mulsers 19 of extraction plant are provided with three grades of mulser imports 21 of extraction plant and three grades of mulser outlets 22 of extraction plant, three grades of phase-splitting equipment 20 of extraction plant are provided with three grades of mixed phase imports 23 of extraction plant, three grades of heavy outs 24 of extraction plant and three grades of light phase exports 25 of extraction plant, three grades of phosphoric acid imports 26 of three grades of mulser imports 21 of extraction plant and extraction plant and three grades of solvent inlets 27 of extraction plant are connected, and three grades of mulsers of extraction plant outlet 22 is connected with three grades of mixed phase imports 23 of extraction plant; Three grades of solvent inlets 27 of extraction plant secondary light phase export 16 and extraction plant are connected, three grades of heavy outs 24 of extraction plant are connected with extraction plant secondary phosphoric acid import 17, and three grades of phase-splitting equipment of extraction plant light phase export 25 is connected with washing device mixed phase fluid inlet 36;

Washing device comprises washing device mixing tank B45 and washing device phase splitting device C46, washing device mixing tank B45 is provided with washing device mixing tank B continuous phase fluid inlet 47, washing device mixing tank B dispersed phase fluid inlet 48 and washing device mixing tank B mixed phase fluid outlet 49, washing device phase splitting device C46 is provided with washing device phase splitting device C mixed phase import 50, washing device phase splitting device C light phase export 51 and washing device phase splitting device C heavy out 52, washing device mixing tank B mixed phase fluid outlet 49 are connected with washing device phase splitting device C mixed phase import 50; Washing device phase splitting device B light phase export 43 is connected with washing device mixing tank B continuous phase fluid inlet 47, washing device phase splitting device C heavy out 52 is connected with washing device mixing tank A dispersed phase fluid inlet 40, and washing device phase splitting device C light phase export 51 is connected with back extraction device one-level solvent inlet 67;

Back extraction device comprises three grades of mulsers 80 of back extraction device and three grades of phase-splitting equipment 81 of back extraction device, three grades of mulsers 80 of back extraction device are provided with three grades of mulser imports 82 of back extraction device and three grades of mulser outlets 83 of back extraction device, three grades of phase-splitting equipment 81 of back extraction device are provided with three grades of mixed phase imports 84 of back extraction device, three grades of heavy outs 86 of back extraction device and three grades of light phase exports 85 of back extraction device, three grades of reverse-extraction agent imports 87 of three grades of mulser imports 82 of back extraction device and back extraction device are connected with three grades of solvent inlets 88 of back extraction device, and three grades of mulsers of back extraction device outlet 83 is connected with three grades of mixed phase imports 84 of back extraction device; Three grades of solvent inlets 88 of back extraction device secondary light phase export 77 and back extraction device are connected, and three grades of heavy outs 86 of back extraction device are connected with back extraction device secondary reverse-extraction agent import 78, and three grades of light phase exports 85 of back extraction device are connected with extraction plant solvent inlet 9.

Embodiment 3

Referring to Fig. 3, adopt three grades of extractions, the phosphoric acid purification device of washing and back extraction, comprise extraction plant, washing device and back extraction device, wherein: extraction plant comprises three grades of mulsers 19 of extraction plant and three grades of phase-splitting equipment 20 of extraction plant, three grades of mulsers 19 of extraction plant are provided with three grades of mulser imports 21 of extraction plant and three grades of mulser outlets 22 of extraction plant, three grades of phase-splitting equipment 20 of extraction plant are provided with three grades of mixed phase imports 23 of extraction plant, three grades of heavy outs 24 of extraction plant and three grades of light phase exports 25 of extraction plant, three grades of phosphoric acid imports 26 of three grades of mulser imports 21 of extraction plant and extraction plant and three grades of solvent inlets 27 of extraction plant are connected, and three grades of mulsers of extraction plant outlet 22 is connected with three grades of mixed phase imports 23 of extraction plant; Three grades of solvent inlets 27 of extraction plant secondary light phase export 16 and extraction plant are connected, three grades of heavy outs 24 of extraction plant are connected with extraction plant secondary phosphoric acid import 17, and three grades of phase-splitting equipment of extraction plant light phase export 25 is connected with washing device mixed phase fluid inlet 36;

Washing device comprises washing device mulser B53 and washing device phase splitting device D54, washing device mulser B53 is provided with washing device mulser B import 55, washing device mulser B outlet 56, washing device phase splitting device D54 is provided with washing device phase splitting device D mixed phase import 59, washing device phase splitting device D heavy out 61 and washing device phase splitting device D light phase export 60, three grades of phosphoric acid imports 57 of washing device mulser B import 55 and washing device are connected with three grades of solvent inlets 58 of washing device, and washing device mulser B outlet 56 is connected with washing device phase splitting device D mixed phase import 59; Three grades of solvent inlets 58 of washing device phase splitting device B light phase export 43 and washing device are connected, washing device phase splitting device D heavy out 61 is connected with washing device mixing tank A dispersed phase fluid inlet 40, and washing device phase splitting device D light phase export 60 is connected with back extraction device one-level solvent inlet 67;

All the other are with embodiment 1.

More than among three embodiment: mulser adopts the pipeline high-shearing dispersion emulsifying machine; Phase splitting device adopts phase-splitting groove, clarifying tank etc. to reach the equipment of phase-splitting purpose; Mixing tank adopts Chinese patent publication number CN1658807A, open day: on 02 22nd, 2006, disclosed " a kind of multi-channeled micro-structured reactor ".

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

1. phosphoric acid purification device, comprise extraction plant, washing device and back extraction device, it is characterized in that: extraction plant secondary light phase export (16) is connected with washing device one-level solvent inlet (36), washing device secondary light phase export (43) is connected with back extraction device one-level solvent inlet (67), and back extraction device secondary light phase export (77) is connected with extraction plant one-level solvent inlet (9);

Extraction plant comprises extraction plant one-level mulser (1) and extraction plant one-level phase splitting device (2), extraction plant secondary mulser (10) and extraction plant secondary phase splitting device (11), extraction plant one-level mulser (1) is provided with extraction plant one-level mulser import (3) and extraction plant one-level mulser outlet (4), extraction plant one-level phase splitting device (2) is provided with extraction plant one-level mixed phase import (5), extraction plant one-level heavy out (6) and extraction plant one-level light phase export (7), extraction plant one-level mulser import (3) is connected with extraction plant one-level phosphoric acid import (8) and extraction plant one-level solvent inlet (9), and extraction plant one-level mulser outlet (4) is connected with extraction plant one-level mixed phase import (5); Extraction plant secondary mulser (10) is provided with extraction plant secondary mulser import (12) and extraction plant secondary mulser outlet (13), extraction plant secondary phase splitting device (11) is provided with extraction plant secondary mixed phase import (14), extraction plant secondary heavy out (15) and extraction plant secondary light phase export (16), extraction plant secondary mulser import (12) is connected with extraction plant secondary phosphoric acid import (17) and extraction plant secondary solvent import (18), and extraction plant secondary mulser outlet (13) is connected with extraction plant secondary mixed phase import (14); Extraction plant one-level light phase export (7) is connected with extraction plant secondary solvent import (18), and extraction plant secondary heavy out (15) is connected with extraction plant one-level phosphoric acid import (8);

Washing device comprises washing device mulser A (28) and washing device phase splitting device A (29), washing device mixing tank A (37) and washing device phase splitting device B (38), washing device mulser A (28) is provided with washing device mulser A import (30), washing device mulser A exports (31), washing device phase splitting device A (29) is provided with washing device phase splitting device A mixed phase import (32), washing device phase splitting device A heavy out (33) and washing device phase splitting device A light phase export (34), washing device mulser A import (30) is connected with washing device solvent inlet (36) with washing device phosphoric acid import (35), and washing device mulser outlet (31) is connected with washing device phase splitting device A mixed phase import (32); Washing device mixing tank A (37) is provided with washing device mixing tank A continuous phase fluid inlet (39), washing device mixing tank A dispersed phase fluid inlet (40) and washing device mixing tank A mixed phase fluid outlet (41), washing device phase splitting device B (38) is provided with washing device phase splitting device B mixed phase import (42), washing device phase splitting device B light phase export (43) and washing device phase splitting device B heavy out (44), and washing device mixing tank A mixed phase fluid outlet (41) is connected with washing device phase splitting device B mixed phase import (42); Washing device phase splitting device A light phase export (34) is connected with washing device mixing tank A continuous phase fluid inlet (39), and washing device phase splitting device B heavy out (44) is connected with washing device phosphoric acid import (35);

Back extraction device comprises back extraction device one-level mulser (62) and back extraction device one-level phase splitting device (63), back extraction device secondary mulser (71) and back extraction device secondary phase splitting device (72), back extraction device one-level mulser (62) is provided with back extraction device one-level mulser import (64) and back extraction device one-level mulser outlet (65), back extraction device one-level phase splitting device (63) is provided with back extraction device one-level mixed phase import (68), back extraction device one-level heavy out (70) and back extraction device one-level light phase export (69), back extraction device one-level mulser import (64) is connected with back extraction device one-level solvent inlet (67) with back extraction device one-level reverse-extraction agent import (66), and back extraction device one-level mulser outlet (65) is connected with back extraction device one-level mixed phase import (68); Back extraction device secondary mulser (71) is provided with back extraction device secondary mulser import (73) and back extraction device secondary mulser outlet (74), back extraction device secondary phase splitting device (72) is provided with back extraction device secondary mixed phase import (75), back extraction device secondary heavy out (76) and back extraction device secondary light phase export (77), back extraction device secondary mulser import (73) is connected with back extraction device secondary solvent import (79) with back extraction device secondary reverse-extraction agent import (78), and back extraction device secondary mulser outlet (74) is connected with back extraction device secondary mixed phase import (75); Back extraction device one-level light phase export (69) is connected with back extraction device secondary solvent import (79), and back extraction device secondary heavy out (76) is connected with back extraction device one-level reverse-extraction agent import (66).

2. phosphoric acid purification device as claimed in claim 1, it is characterized in that: extraction plant comprises three grades of mulsers of extraction plant (19) and three grades of phase-splitting equipment of extraction plant (20), three grades of mulsers of extraction plant (19) are provided with three grades of mulser imports of extraction plant (21) and three grades of mulser outlets of extraction plant (22), three grades of phase-splitting equipment of extraction plant (20) are provided with three grades of mixed phase imports of extraction plant (23), three grades of light phase exports of three grades of heavy outs of extraction plant (24) and extraction plant (25), three grades of mulser imports of extraction plant (21) are connected with three grades of phosphoric acid imports of extraction plant (26) and three grades of solvent inlets of extraction plant (27), and three grades of mulser outlets of extraction plant (22) are connected with three grades of mixed phase imports of extraction plant (23); Extraction plant secondary light phase export (16) is connected with three grades of solvent inlets of extraction plant (27), three grades of heavy outs of extraction plant (24) are connected with extraction plant secondary phosphoric acid import (17), and three grades of phase-splitting equipment of extraction plant light phase export (25) is connected with washing device mixed phase fluid inlet (36);

Washing device comprises washing device mixing tank B (45) and washing device phase splitting device C (46), washing device mixing tank B (45) is provided with washing device mixing tank B continuous phase fluid inlet (47), washing device mixing tank B dispersed phase fluid inlet (48) and washing device mixing tank B mixed phase fluid outlet (49), washing device phase splitting device C (46) is provided with washing device phase splitting device C mixed phase import (50), washing device phase splitting device C light phase export (51) and washing device phase splitting device C heavy out (52), washing device mixing tank B mixed phase fluid outlet (49) is connected with washing device phase splitting device C mixed phase import (50); Washing device phase splitting device B light phase export (43) is connected with washing device mixing tank B continuous phase fluid inlet (47), washing device phase splitting device C heavy out (52) is connected with washing device mixing tank A dispersed phase fluid inlet (40), and washing device phase splitting device C light phase export (51) is connected with back extraction device one-level solvent inlet (67);

Back extraction device comprises three grades of mulsers of back extraction device (80) and three grades of phase-splitting equipment of back extraction device (81), three grades of mulsers of back extraction device (80) are provided with three grades of mulser imports of back extraction device (82) and three grades of mulser outlets of back extraction device (83), three grades of phase-splitting equipment of back extraction device (81) are provided with three grades of mixed phase imports of back extraction device (84), three grades of light phase exports of three grades of heavy outs of back extraction device (86) and back extraction device (85), three grades of mulser imports of back extraction device (82) are connected with three grades of solvent inlets of three grades of reverse-extraction agent imports of back extraction device (87) and back extraction device (88), and three grades of mulser outlets of back extraction device (83) are connected with three grades of mixed phase imports of back extraction device (84); Back extraction device secondary light phase export (77) is connected with three grades of solvent inlets of back extraction device (88), three grades of heavy outs of back extraction device (86) are connected with back extraction device secondary reverse-extraction agent import (78), and three grades of light phase exports of back extraction device (85) are connected with extraction plant solvent inlet (9).

3. phosphoric acid purification device as claimed in claim 1, it is characterized in that: extraction plant comprises three grades of mulsers of extraction plant (19) and three grades of phase-splitting equipment of extraction plant (20), three grades of mulsers of extraction plant (19) are provided with three grades of mulser imports of extraction plant (21) and three grades of mulser outlets of extraction plant (22), three grades of phase-splitting equipment of extraction plant (20) are provided with three grades of mixed phase imports of extraction plant (23), three grades of light phase exports of three grades of heavy outs of extraction plant (24) and extraction plant (25), three grades of mulser imports of extraction plant (21) are connected with three grades of phosphoric acid imports of extraction plant (26) and three grades of solvent inlets of extraction plant (27), and three grades of mulser outlets of extraction plant (22) are connected with three grades of mixed phase imports of extraction plant (23); Extraction plant secondary light phase export (16) is connected with three grades of solvent inlets of extraction plant (27), three grades of heavy outs of extraction plant (24) are connected with extraction plant secondary phosphoric acid import (17), and three grades of phase-splitting equipment of extraction plant light phase export (25) is connected with washing device mixed phase fluid inlet (36);

Washing device comprises washing device mulser B (53) and washing device phase splitting device D (54), washing device mulser B (53) is provided with washing device mulser B import (55), washing device mulser B exports (56), washing device phase splitting device D (54) is provided with washing device phase splitting device D mixed phase import (59), washing device phase splitting device D heavy out (61) and washing device phase splitting device D light phase export (60), washing device mulser B import (55) is connected with three grades of solvent inlets of three grades of phosphoric acid imports of washing device (57) and washing device (58), and washing device mulser B outlet (56) is connected with washing device phase splitting device D mixed phase import (59); Washing device phase splitting device B light phase export (43) is connected with three grades of solvent inlets of washing device (58), washing device phase splitting device D heavy out (61) is connected with washing device mixing tank A dispersed phase fluid inlet (40), and washing device phase splitting device D light phase export (60) is connected with back extraction device one-level solvent inlet (67);

4. as the described phosphoric acid purification device of one of claim 1-3, wherein: phase splitting device is phase-splitting groove or clarifying tank.

5. as the described phosphoric acid purification device of one of claim 1-3, wherein: mulser divides mulser for the pipeline high-shear.