CN107200314A - The micro- method and its device for absorbing joint energy recovery of a kind of thermal phosphoric acid and polyphosphoric acid - Google Patents
The micro- method and its device for absorbing joint energy recovery of a kind of thermal phosphoric acid and polyphosphoric acid Download PDFInfo
- Publication number
- CN107200314A CN107200314A CN201710498062.3A CN201710498062A CN107200314A CN 107200314 A CN107200314 A CN 107200314A CN 201710498062 A CN201710498062 A CN 201710498062A CN 107200314 A CN107200314 A CN 107200314A
- Authority
- CN
- China
- Prior art keywords
- heat
- micro
- phosphoric acid
- outlet
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title claims abstract description 141
- 229910000147 aluminium phosphate Inorganic materials 0.000 title claims abstract description 71
- 238000011084 recovery Methods 0.000 title claims abstract description 67
- 229920000137 polyphosphoric acid Polymers 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 42
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000006243 chemical reaction Methods 0.000 claims abstract description 56
- 239000008234 soft water Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910001868 water Inorganic materials 0.000 claims abstract description 42
- 239000002893 slag Substances 0.000 claims abstract description 36
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims abstract description 36
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000002485 combustion reaction Methods 0.000 claims abstract description 30
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 30
- 239000011574 phosphorus Substances 0.000 claims abstract description 30
- 239000006227 byproduct Substances 0.000 claims abstract description 17
- 230000004044 response Effects 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 75
- 239000012267 brine Substances 0.000 claims description 33
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 33
- 230000002745 absorbent Effects 0.000 claims description 32
- 239000002250 absorbent Substances 0.000 claims description 32
- 239000006185 dispersion Substances 0.000 claims description 30
- 230000008676 import Effects 0.000 claims description 21
- 150000003839 salts Chemical class 0.000 claims description 17
- 239000002253 acid Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 239000002699 waste material Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 9
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 239000007792 gaseous phase Substances 0.000 claims description 4
- 238000007514 turning Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 20
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 238000007711 solidification Methods 0.000 abstract description 5
- 230000008023 solidification Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 235000011007 phosphoric acid Nutrition 0.000 description 55
- 230000008569 process Effects 0.000 description 12
- 238000012546 transfer Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 230000036571 hydration Effects 0.000 description 6
- 238000006703 hydration reaction Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 235000021317 phosphate Nutrition 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- -1 phosphate ester Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010410 dusting Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical group O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- JXBAVRIYDKLCOE-UHFFFAOYSA-N [C].[P] Chemical compound [C].[P] JXBAVRIYDKLCOE-UHFFFAOYSA-N 0.000 description 1
- KXEOSTAFIDYVEF-UHFFFAOYSA-N [Si](O)(O)(O)O.[F] Chemical compound [Si](O)(O)(O)O.[F] KXEOSTAFIDYVEF-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 208000012839 conversion disease Diseases 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005649 metathesis reaction Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000002510 pyrogen Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000013456 study Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/20—Preparation from elemental phosphorus or phosphoric anhydride
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/24—Condensed phosphoric acids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1807—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention discloses a kind of thermal phosphoric acid and the micro- method and its device for absorbing joint energy recovery of polyphosphoric acid, this method is reclaimed with micro- absorption heat-exchange device to the heat of phosphorus pentoxide and water reaction heat, the heat of clinker is reclaimed with heat of slags retracting device, the reaction heat heat of recovery is commonly connected in air heat exchanger that hot soft water is made with heat of slags, hot soft water carries out superheated steam by pipeline to yellow phosphorus burning stove and phosphorus furnace exhaust gas boiler, pass through association response heat, clinker heat, the heat of by-product exhaust combustion heat and yellow phosphorus burning heat, realize that heat energy high efficiente callback is utilized, the present invention can realize low energy consumption production thermal phosphoric acid or polyphosphoric acid, the combustion heat of yellow phosphorus institute by-product tail gas can be reclaimed simultaneously, the combustion heat of yellow phosphorus, phosphorus pentoxide and water reaction heat, the heat of solidification and sensible heat of clinker, and organic efficiency is high, be conducive to saving the energy, effectively reduce into production cost.
Description
Technical field
The present invention relates to a kind of micro- method and its device for absorbing joint energy recovery of thermal phosphoric acid and polyphosphoric acid, belong to low
Energy consumption produces heat energy synthetical recovery recovery technology field in thermal phosphoric acid or polyphosphoric acid technology and production process.
Background technology
Phosphoric acid is product in the middle of a kind of important chemical industry, is the synthesis phosphorus-containing compound such as most phosphates and partial phosphate ester
Conventional raw material, be widely used in the industries such as food, medicine, electronics, oil, metallurgy, chemical industry, according to production technology, phosphoric acid
Source have phosphoric acid by wet process and thermal phosphoric acid.Phosphoric acid by wet process is to utilize strong acid --- it is typically sulfuric acid, also there is nitric acid, hydrochloric acid, fluorine
Silicic acid occurs metathesis reaction with phosphorus ore and obtains impure more raw phosphoric acid, is generally used for fertilizer., can after the phosphoric acid is purified
Obtain the phosphoric acid of food-grade.Thermal phosphoric acid is that sharp reduction with carbon phosphorus ore obtains yellow phosphorus at high temperature, and the yellow phosphorus that then burns obtains five oxygen
Change two phosphorus, then obtained by being reacted with water.Thermal phosphoric acid impurity is few, before wet phosphoric acid purifying Technique Popularizing, almost fine
The unique raw material of phosphate product.From the point of view of technological process, compared with thermal phosphoric acid, the technological process length of phosphoric acid by wet process and multiple
Miscellaneous, unit operation and auxiliary facility are more.But economically, phosphoric acid by wet process has a clear superiority compared with thermal phosphoric acid.Thermal phosphoric acid cost
A high major reason is that energy consumption is big.Traditional phosphorous acid production by BEP technique is very extensive.Yellow phosphoric tail gas is directly through fire
Discharged after torch burning.After yellow phosphorus burning, the reaction heat of aquation are removed by a large amount of recirculated waters, it is changed into Lowlevel thermal energy, it is difficult to utilize.It is yellow
Phosphorus clinker is directly by water quenching, and heat energy is not also utilized.In recent years, in order to reduce the cost of thermal phosphoric acid, the recovery of energy by
Gradually receive much concern, also carried out many correlative studys and practice.For example：Invent CN201407641Y one kind burning yellow phosphoric tail gas
Boiler, invention CN203203010U one kind burning yellow phosphoric tail gas burnings boiler, a kind of invention Yellow phosphorus of CN205842699U
Tail gas multitubular boiler etc. describes different type and yellow phosphoric tail gas and reclaims the boiler of heat energy to burn.Patent of invention
The many source of the gas combustion power generation systems of CN102678195A yellow phosphoric tail gas, patent of invention CN104075332 are comprehensive for improving yellow phosphoric tail gas
Close the technique that system and method for utilization rate etc. propose using the yellow phosphoric tail gas combustion heat to generate electricity or provide thermal source.
Patent of invention CN1355133A Phosphorus combustion heat recovery and utilization device and its thermal phosphoric acid production systems are proposed
A kind of combustion heat energy retracting device of similar boiler and a phosphorous acid production by BEP system.The introduction that focuses on of the patent is fired
The structure of heat-energy recovering apparatus is burnt, the consideration for the energy recovery technique of the high-temperature tail gas after separating device fails to jump out completely
The pattern of traditional hydrated tower.It is totally different due to air-liquid two-phase physical property and flow, therefore in the way of hydrated tower jacketed simultaneously
The thermal efficiency exchanged heat with air-liquid two-phase is very limited.In addition, the species of absorbent in hydrated tower is not known in claim, only exist
Mentioned in embodiment and directly use water, and do not refer to vent gas treatment.
Patent of invention CN201531862U yellow phosphorus burning heat energy recycling devices propose a kind of yellow phosphorus burning more insured
Heat-energy recovering apparatus, it does intermediate heat transfer medium using certain gas, can be prevented effectively from because the rupture of boiler heat exchange comb causes five
Aoxidize two phosphorus and soft water reaction generation phosphoric acid and etching apparatus.The patent does not refer to that the recovery of the heat of hydration and heat are integrated.
A kind of phosphorous acid production by BEP devices reclaimed with Lowlevel thermal energy of patent of invention CN105731405A propose one kind
It can not carry tail gas heat quantity with the device of recovery section aquation heat energy, gained vapour pressure highest 0.8MPa and reclaim integrated with heat.
It is a kind of similar that the device of patent of invention CN102910602A dual zone type high efficiente callback heat energy generated during combustion of yellow, which is proposed,
The heat-energy recovering apparatus of phosphoric acid-fired boiler, the recovery of device high-temperature tail gas heat energy and hydrated reaction heat is not considered.
The device of patent of invention CN102556990A absorbing heat energy from combustion of yellow phosphorus with heat transfer oil proposes one kind by conduction oil
Exchange heat, then discharge the device of heat.The invention need to use conduction oil and do intermediate heat transfer medium, and not mention device high-temperature tail gas
The recovery of heat energy and hydrated reaction heat.
At present, the patent and document on thermal phosphoric acid production energy-saving are mostly focused on the yellow phosphoric tail gas combustion heat or yellow phosphorus combustion
The independent recovery heated, the whole utilization for rarely having concern energy from phosphorus ore to phosphoric acid or in polyphosphoric acid whole process, therefore energy regenerating
Rate is not high, with pyrogenicity method technique prepare phosphoric acid, polyphosphoric acid cost advantage it is unobvious.
Wherein, the utilization of the heat of hydration is very difficult in the sour technique of traditional hot method.The sour technique of the hot method of tradition is to avoid equipment
Corrosion, is made absorbent using substantial amounts of SAPMAC method acid and phosphorus pentoxide is absorbed in spray column, be no more than with control material temperature
80℃.80 DEG C of heat is difficult by.Therefore, it is necessary to improve the temperature of material in absorption process, and then need to select more
Expensive equipment and materials.For big equipment, upgrade of material means the increasing of equipment investment, and this can weaken heat recovery band
The benefit come.For this reason, it may be necessary to reduce equipment volume as far as possible.
Microflow control technique is in recent years gradually by the new skill of the strengthening process transmission of extensive concern, accurate process control
Art, the technology gradually substitutes the large scale equipments such as traditional tower, groove in chemical fields such as extraction, absorption, reaction, synthesis, heat transfers,
Make factory towards being miniaturized, become more meticulous, the direction of flexibility is developed rapidly.With reference to the specific of phosphorus pentoxide and water reactive absorption
Micro- absorption-heat exchanger applications in the process, and are proposed suitable characteristic size by operating mode, the present invention.
The content of the invention
The technical problem to be solved in the present invention is to provide the micro- absorption joint energy recovery of a kind of thermal phosphoric acid and polyphosphoric acid
Method and its device, can realize low energy consumption production thermal phosphoric acid or polyphosphoric acid, the burning of yellow phosphorus institute by-product tail gas can be reclaimed simultaneously
Heat, the combustion heat of yellow phosphorus, phosphorus pentoxide and water reaction heat, the heat of solidification of clinker and sensible heat, and organic efficiency is high, is conducive to section
The energy is saved, production cost is effectively reduced into, the deficiencies in the prior art can be overcome.
The technical scheme is that：The micro- method for absorbing joint energy recovery of a kind of thermal phosphoric acid and polyphosphoric acid, the party
Method first prepares yellow phosphorus, by-product tail gas and clinker, Ran Hourang using phosphorus ore, carbon, silica as raw material under the hot environment that electric furnace is provided
Yellow phosphorus mixes combining combustion generation phosphorus pentoxide with air in yellow phosphorus burning stove, and the phosphorus pentoxide and water of most relief generation are anti-
Phosphoric acid or polyphosphoric acid should be obtained, the heat of phosphorus pentoxide and water reaction heat is reclaimed with micro- absorption-heat exchanger, clinker is used
Heat reclaim unit is reclaimed to the heat of clinker, and reaction heat heat and the heat of slags of recovery are commonly connected to air heat-exchange
Hot soft water is made in device, hot soft water carries out superheated steam by pipeline to yellow phosphorus burning stove and phosphorus furnace exhaust gas boiler, passed through
Association response heat, clinker heat, by-product exhaust combustion heat and the hot heat of yellow phosphorus burning, realize that heat energy high efficiente callback is utilized.
The above-mentioned phosphoric acid or polyphosphoric acid for often producing phosphorous 1 ton, the sky that producing yellow Phosphorus by electric oven institute by-product exhaust combustion needs
Makings amount is 34-70 tons, and yellow phosphorus burning needs the quality of air to be 5-15 tons, and the air quality for heat recovery is 15-70
Ton, the water quality for heat recovery is 5-50 tons.
Above-mentioned hot soft water is by pipeline by yellow phosphorus burning stove and phosphorus furnace exhaust gas boiler serial or parallel connection.
The micro- device for absorbing joint energy recovery of a kind of thermal phosphoric acid and polyphosphoric acid, it includes electric furnace, and electric furnace product goes out
Mouth is connected with yellow phosphorus burning stove entrance, phosphorus furnace exhaust gas boiler inlet and waste residue heat recovering device respectively, it is characterised in that：Yellow phosphorus
The outlet of combustion furnace is connected with micro- absorption-heat exchanger entrance, and micro- absorption-heat exchanger exit is by heat recovery servicing unit with giving up
Slag heat reclaim unit is parallel to air converter, and the hot soft water outlet of air converter passes through pipeline and yellow phosphorus burning stove and phosphorus
The steam unit of furnace exhaust gas boiler is attached.
Above-mentioned micro- absorption-heat exchanger includes bottom plate and cover plate, provided with more than one by anti-between bottom plate and cover plate
The cell cube for answering plate and heat exchanger plates to constitute, absorbent entrance, cool brine import and hot salt are respectively equipped with three turnings of cover plate
Water out, is respectively equipped with and reaction plate in cell cube corresponding to absorbent entrance, cool brine import and hot salt brine outlet port
Cool brine passage and hot salt brine passage that even the absorbent passage of UNICOM and heat exchanger plates are connected, in bottom plate, reaction plate and heat exchange
The upper face of plate is laid with parallel channels, provided with vertical dispersion plate is moved towards with parallel channels at absorbent passage, is dividing
Fall apart provided with dispersion hole, with being provided with gas feed on the bottom plate of absorbent passage the same side, away from absorbent passage one
The reaction plate of side is exported provided with gas-liquid mixture.
Above-mentioned cell cube is that up-down structure is reaction plate-heat exchanger plates or is that up-down structure is heat exchanger plates-reaction plate.
Above-mentioned cool brine import and hot salt brine outlet are distributed on the diagonal of heat exchanger plates.
The hydraulic radius of above-mentioned reaction plate parallel channels is 0.1mm-20mm, and the hydraulic radius of dispersion hole is 0.01mm-
4mm, the axis of dispersion hole and the angle of parallel channels axis are 20 ° -90 °, and the residence time of material is 0.1s-10s；Heat exchanger plates
Cavity for gap 0.1mm-20mm or the parallel channels for being 0.1mm-20mm by hydraulic radius are constituted.
Above-mentioned waste residue heat recovery system includes slag emission mouthful, and slag emission mouthful is connected with tilted-putted rotating cylinder,
Exported in the low side for tilting rotating cylinder provided with cooled slag and cold air intake, cooled slag outlet and cold air intake are with combing
Cold is connected, and grate-cooler is provided with black furnace slag outlet and air intake, in the high-end of rotating cylinder, provided with hot-air outlet, heat
Air outlet is connected with air converter.
Above-mentioned heat recovery servicing unit includes knockout drum, and knockout drum gaseous phase outlet is connected with exhaust gas cooler, tail gas
Cooler is connected with exhaust gas processing device, preheated soft provided with soft water import, offgas outlet and soft water preheating outlet, offgas outlet
Water out is connected with the soft water preheating import on 85 phosphoric acid coolers, the 85 hot soft water outlets of phosphoric acid cooler and concentrated acid cooler phase
Connection, the exhaust gas processing device is connected with concentrated acid cooler by circulating line with the circulation water inlet of micro- absorption-heat exchanger
Connect.
Prior art compares, the micro- method and its device for absorbing joint energy recovery of thermal phosphoric acid and polyphosphoric acid of the present invention,
This method is reclaimed with micro- absorption-heat exchanger to the heat of phosphorus pentoxide and water reaction heat, uses heat of slags retracting device
The heat of clinker is reclaimed, reaction heat heat and the heat of slags of recovery are commonly connected to be made hot soft in air heat exchanger
Water, hot soft water carries out superheated steam by pipeline to yellow phosphorus burning stove and phosphorus furnace exhaust gas boiler, passes through association response heat, stove
The heat of slag heat, by-product exhaust combustion heat and yellow phosphorus burning heat, realizes that heat energy high efficiente callback is utilized, so can high efficiente callback yellow phosphorus
Exhaust combustion heat, yellow phosphorus burning heat, the phosphorus pentoxide heat of hydration, the heat of solidification of clinker and sensible heat, the effect of its energy-saving and emission-reduction are non-
Chang Mingxian；By the test of many times of applicant, phosphoric acid or polyphosphoric acid of the production containing 1 ton of phosphorus can economize on electricity 5500-6000 degree, effectively be
Enterprise reduces production cost, and traditional heat is turned sour production technology, and it is integrated never to do a system thermal, does not also almost have systematic
The heat discharged using the heat of hydration and cooling of furnace slag；
Phosphorous 1 ton of phosphoric acid or polyphosphoric acid is often produced, the air quality that producing yellow Phosphorus by electric oven institute by-product exhaust combustion needs is
34-70 tons, yellow phosphorus burning needs the quality of air to be 5-15 tons, and the air quality for heat recovery is 15-70 tons, for heat
The water quality that amount is reclaimed is 5-50 tons, and this data is the both economical energy-conservation that applicant draws by multiple experiment, and not
Influence the data group of product quality；
Hot soft water by pipeline by yellow phosphorus burning stove and phosphorus furnace exhaust gas boiler serial or parallel connection, so flexibly selection series connection or simultaneously
The mode of connection, such as hot soft water are parallel to yellow phosphorus burning stove and phosphorus furnace exhaust gas boiler carries out steam, if vapour pressure, which reaches, reclaims profit
It is required that, then from parallel connection, if not reaching the requirement utilized, if increasing vapour pressure not enough, allow it to concatenate, before so having
Steam course twice afterwards, so that steam reaches necessary requirement；
The micro- device for absorbing joint energy recovery of a kind of thermal phosphoric acid and polyphosphoric acid, the outlet of the structure yellow phosphorus burning stove is inhaled with micro-
Receipts-heat exchanger entrance connection, micro- absorption-heat exchanger exit is in parallel with waste residue heat recovering device by heat recovery servicing unit
To air converter, the hot soft water outlet of air converter is filled by the steam of pipeline and yellow phosphorus burning stove and phosphorus furnace exhaust gas boiler
Put and be attached, so can be while the high efficiente callback yellow phosphoric tail gas combustion heat, yellow phosphorus burning heat, the phosphorus pentoxide heat of hydration, clinker
Heat of solidification and sensible heat, tested by generation, the heat energy of recovery can produce the steam that pressure is more than 1.0MPa again, and it both can use
Do factory power, it is also possible to do thermal source, value-added effect can be brought for production;
Micro- absorption-heat exchanger includes bottom plate and cover plate, provided with more than one by reaction plate and heat exchange between bottom plate and cover plate
The cell cube that plate is constituted, absorbent entrance, cool brine import and hot salt brine outlet is respectively equipped with three turnings of cover plate, in list
On first body the absorption for connecting UNICOM with reaction plate is respectively equipped with corresponding to absorbent entrance, cool brine import and hot salt brine outlet port
Agent passage, the cool brine passage and hot salt brine passage being connected with heat exchanger plates, it is equal in the upper face of bottom plate, reaction plate and heat exchanger plates
Parallel channels are laid with, provided with vertical dispersion plate is moved towards with parallel channels at absorbent passage, is provided with and divides on dispersion plate
Dissipate hole, with the bottom plate of absorbent passage the same side be provided with gas feed, away from absorbent passage side reaction plate on
Provided with gas-liquid mixture outlet, reaction plate is as containing phosphorus pentoxide tail gas and hydrated agent in so micro- absorption-heat exchanger
Reacting environment, and reaction heat of the heat exchanger plates to be discharged in the form of partition-wall heat transfer in the flat row of channels above of absorbing reaction plate, so that cold
Desalted water is heated.Desalted water after heating, exports from hot desalinized water and flows out, the structure energy high efficiente callback reaction heat so having,
Meanwhile, such structure, which can only do reactor, can also have the effect of reactor and heat exchanger concurrently；Dispersion plate, which is used to distribute, to be absorbed
Agent is in each bar shaped microchannel, to increase the surface area of gas contact；Dispersion hole is used to allow absorbent by dispersion plate,
To distribute absorbent in each bar shaped microchannel；Contact and flowing of the parallel channels for gas with absorbent provide field
Institute, also provides place for the circulation of desalted water；
Cell cube is that up-down structure is reaction plate-heat exchanger plates or is that up-down structure is heat exchanger plates-reaction plate, such reaction plate-
Heat exchanger plates cell cube can be combined flexibly；
Cool brine import and hot salt brine outlet are distributed on the diagonal of heat exchanger plates, the cool brine import of such position and hot salt brine
Outlet is conducive to taking away more heats, is conducive to improving the rate of recovery of heat；
The hydraulic radius of reaction plate parallel channels is 0.1mm-20mm, and the hydraulic radius of dispersion hole is 0.01mm-4mm, dispersion hole
The angle of axis and parallel channels axis be 20 ° -90 °, the residence time of material is 0.1s-10s；Heat exchanger plates are gap
0.1mm-20mm cavity is made up of hydraulic radius for 0.1mm-20mm parallel channels, by the result of the test of applicant,
Micro- absorption-heat exchanger of so size can preferably absorb heat, be conducive to improving the organic efficiency of heat, meanwhile, it is more traditional
Spray absorber, the mass transfer rate of micro- absorption-heat exchanger is fast, reaction conversion ratio is high, therefore production intensity is greatly improved, equipment body
Product is substantially reduced, reductions of equipment volume mean material capability can room for promotion greatly, and excellent material is to ensure that water
Change the key for absorbing that temperature is high, the heat of hydration can be utilized, furthermore other small advantages of equipment volume have：Reduced investment, liquid holdup be low,
Operation is flexible, process regulation is rapid and accurate;
Waste residue heat recovery system includes slag emission mouthful, and slag emission mouthful is connected with tilted-putted rotating cylinder, is tilting rotating cylinder
Low side provided with cooled slag outlet and cold air intake, cooled slag outlet and cold air intake be connected with grate-cooler,
Grate-cooler is provided with black furnace slag outlet and air intake, in the high-end of rotating cylinder, provided with hot-air outlet, hot-air outlet
It is connected with air converter, during heat is discharged phase-state change can occur for clinker, be solid by the settable liquid melted
State, therefore, the heat of solidification of clinker and the recovery of sensible heat should not directly with water septate heat transfer, and use such waste residue heat recovery
System, is first directly contacted by air with clinker, is realized after cooling of furnace slag and air heating, then occur heat exchange by water and hot-air
, be so conducive to the recycling of heat of slags;
Heat recovery servicing unit includes knockout drum, and knockout drum gaseous phase outlet is connected with exhaust gas cooler, set on exhaust gas cooler
There are soft water import, offgas outlet and soft water preheating outlet, offgas outlet is connected with exhaust gas processing device, soft water preheating outlet and 85
Soft water preheating import connection on phosphoric acid cooler, the 85 hot soft water outlets of phosphoric acid cooler are connected with concentrated acid cooler, described
Exhaust gas processing device is connected with concentrated acid cooler by circulating line with the circulation water inlet of micro- absorption-heat exchanger, such energy
By being produced again by recirculated water, one is advantageous for the recycling of the energy, two be also even more important a little to follow
Ring water carries certain temperature, is so conducive to the production of thermal phosphoric acid or polyphosphoric acid.
Brief description of the drawings
Fig. 1 is receipts structural representation of the invention.
Fig. 2 is the structural representation of micro- absorption-heat exchanger.
Fig. 3 is the structure chart of heat sink.
Fig. 4 is the structural representation of heat exchanger plates.
Wherein, yellow phosphorus burning stove 1；Micro- absorption-heat exchanger 2；Knockout drum 3；Exhaust gas cooler 4；Exhaust scrubber 5；Concentrated acid
Cooler 6；85 phosphoric acid coolers 7；Acid circulating pump 8；Wash water circulating pump 9；Exhaust fan 10；Phosphorus furnace exhaust gas boiler 11；Grate-cooler
12；Rotating cylinder 13；Air heat exchanger 14；Cyclone dust collectors 15；Tails dedusting device 16；De-dusting cycle pump 17.
Embodiment
The micro- method for absorbing joint energy recovery of a kind of thermal phosphoric acid and polyphosphoric acid, this method elder generation using phosphorus ore, carbon, silica as
Raw material prepares yellow phosphorus, by-product tail gas and clinker under the hot environment that electric furnace is provided, and then allows yellow phosphorus with air in yellow phosphorus burning
Combining combustion generation phosphorus pentoxide is mixed in stove 1, the phosphorus pentoxide of most relief generation and water reaction obtain phosphoric acid or polyphosphoric acid,
The heat of phosphorus pentoxide and water reaction heat is reclaimed with micro- absorption-heat exchanger 2, with heat of slags retracting device to clinker
Heat reclaimed, the reaction heat heat of recovery is commonly connected in air heat exchanger 14 that hot soft water is made with heat of slags,
Hot soft water carries out superheated steam by pipeline to yellow phosphorus burning stove 1 and phosphorus furnace exhaust gas boiler 11, passes through association response heat, stove
The heat of slag heat, by-product exhaust combustion heat and yellow phosphorus burning heat, realizes that heat energy high efficiente callback is utilized, above-mentioned often production phosphorous 1
The phosphoric acid or polyphosphoric acid of ton, the air quality that producing yellow Phosphorus by electric oven institute by-product exhaust combustion needs are 34-70 tons, yellow phosphorus burning
The quality for needing air is 5-15 tons, and the air quality for heat recovery is 15-70 tons, and the water quality for heat recovery is
5-50 tons, wherein, hot soft water is by pipeline by yellow phosphorus burning stove 1 and the serial or parallel connection of phosphorus furnace exhaust gas boiler 11.
The structure is as shown in figure 1, a kind of thermal phosphoric acid and the micro- device for absorbing joint energy recovery of polyphosphoric acid, it includes electricity
Stove, electric furnace product outlet connects with the entrance of yellow phosphorus burning stove 1, the entrance of phosphorus furnace exhaust gas boiler 11 and waste residue heat recovering device respectively
Connect, the outlet of yellow phosphorus burning stove 1 is connected with micro- entrance of absorption-heat exchanger 2, micro- outlet of absorption-heat exchanger 2 is auxiliary by heat recovery
Device is helped to be parallel to air converter with waste residue heat recovering device, the hot soft water outlet of air converter passes through pipeline and yellow phosphorus
The steam unit of combustion furnace 1 and phosphorus furnace exhaust gas boiler 11 is attached, wherein, heat recovery servicing unit includes knockout drum 3, point
It is connected from the gaseous phase outlet of tank 3 with exhaust gas cooler 4, exhaust gas cooler 4 goes out provided with soft water import, offgas outlet and soft water preheating
Mouthful, offgas outlet is connected with exhaust gas processing device, and soft water preheating outlet connects with the soft water preheating import on 85 phosphoric acid coolers 7
Connect, the hot soft water outlet of 85 phosphoric acid cooler 7 is connected with concentrated acid cooler 6, the exhaust gas processing device leads to concentrated acid cooler 6
The circulation water inlet that circulating line is crossed with micro- absorption-heat exchanger 2 is connected；Waste residue heat recovery system includes slag emission mouthful,
Slag emission mouthful is connected with tilted-putted rotating cylinder 13, is tilting the low side of rotating cylinder 13 provided with cooled slag outlet and cold air
Entrance, cooled slag outlet and cold air intake are connected with grate-cooler 12, and grate-cooler 12 is provided with black furnace slag outlet and sky
Gas entrance, in the high-end of rotating cylinder 13, provided with hot-air outlet, hot-air outlet is connected with air converter.
The structure of micro- absorption-heat exchanger 2 is as shown in Fig. 2 it includes bottom plate and cover plate, provided with one between bottom plate and cover plate
The cell cube being made up of reaction plate and heat exchanger plates more than individual, cell cube is above and below up-down structure is reaction plate-heat exchanger plates or is
Structure is heat exchanger plates-reaction plate, and the groove for being bumped into dispersion plate is provided with the bottom of heat exchanger plates, is set respectively at three turnings of cover plate
There are absorbent entrance, cool brine import and hot salt brine outlet, wherein, cool brine import and hot salt brine outlet are distributed on heat exchanger plates
On diagonal, it is respectively equipped with and reacts corresponding to absorbent entrance, cool brine import and hot salt brine outlet port in cell cube
The absorbent passage of Ban Lian UNICOMs, the cool brine passage and hot salt brine passage being connected with heat exchanger plates, in bottom plate, reaction plate and are changed
The upper face of hot plate is laid with parallel channels, is provided with absorbent passage and moves towards vertical dispersion plate with parallel channels,
Dispersion plate is provided with dispersion hole, with being provided with gas feed on the bottom plate of absorbent passage the same side, away from absorbent passage
The reaction plate of side is exported provided with gas-liquid mixture, and the hydraulic radius of above-mentioned middle reaction plate parallel channels is 0.1mm-20mm,
The hydraulic radius of dispersion hole is 0.01mm-4mm, and the axis of dispersion hole and the angle of parallel channels axis are 20 ° -90 °, material
Residence time is 0.1s-10s；Cavity or be the parallel of 0.1mm-20mm by hydraulic radius that heat exchanger plates are gap 0.1mm-20mm
Passage is constituted.
The present invention discloses a kind of thermal phosphoric acid and the micro- method and its device for absorbing joint energy recovery of polyphosphoric acid, its process
Principle is as shown in Fig. 1 thermal phosphoric acids, polyphosphoric acid joint energy recovery process schematic representation：Yellow phosphorus unit is provided with 5 intermittent feeding electricity
Stove interval is driven, and is transferred to every electric furnace after 28 tons of rocks phosphate in powder, 5.6 tons of coke, 7 tons of silicas are mixed, granulated, is maintained electric furnace temperature
At 1350-1450 DEG C；The advanced rotating cylinder 13 of clinker of discharge, then enter grate-cooler 12, clinker per ton directly connects with 4 tons of cold air adverse currents
Touch, obtain hot-air and black furnace slag；After the scrubbed cooling of furnace gas, obtain liquid phosphor and the tail gas rich in carbon monoxide, the tail gas with
Air in mass ratio 1:2.5 mixing, and burnt in phosphorus furnace exhaust gas boiler 11；Yellow phosphorus is through atomization and air in mass ratio 1:9.1
Mixing, and burnt in yellow phosphorus burning stove 1.The flue gas that yellow phosphorus burning stove 1 is discharged is molten through polyphosphoric acid in micro- absorption-heat exchanger 2
After liquid washing, absorption, polyphosphoric acid solution is formed, and gas-liquid separation is realized by knockout drum 3, gas is handled through exhaust scrubber 5
Emptied afterwards by exhaust fan 10, and polyphosphoric acid solution mixes 85 phosphoric acid of generation with water.In terms of heat recovery, 53.2 tons of soft water
Exhaust gas cooler 4,85 phosphoric acid coolers 7, concentrated acid cooler 6 are first passed through by the reaction recuperation of heat in micro- absorption-heat exchanger 2.Quilt
Soft water after heating is exchanged heat by air heat exchanger 14 with the hot-air from rotating cylinder 13 out again.Afterwards, tail gas is through cyclone dust removal
It is vented after device 15, tails dedusting device 16, the processing of de-dusting cycle pump 17.Meanwhile, in the soft water being further heated, there is 45% distribution
To yellow phosphorus burning stove 1, in addition 55% be assigned to phosphorus furnace exhaust gas boiler 11.Hot soft water is changed into after two boiler parallel connection heating
3.9MPa, 450 DEG C of superheated steam.
The operation instruction of micro- absorption-heat exchanger 2：Absorbent is added from absorbent entrance, below each layer of heat exchanger plates
Gap after, enter through the aperture on dispersion plate and contact, mix with gas in the parallel channels above each layer of reaction plate, contain
Entered by the gas of absorbent components from gas inlet end after microreactor, be assigned to the parallel channels above each layer of reaction plate
It is interior, after mixing is contacted with absorbent, micro- absorption-heat exchanger 2 is left from the gas-liquid mixture port of export in the lump, it is cold de- during this
Salt solution is flowed into from cold desalted water import, by the parallel channels above each layer of heat exchange version, absorbs anti-in the form of partition-wall heat transfer
The reaction heat of release in the flat row of channels above of plate is answered, so as to be heated, the desalted water after heating, exports and flows out from hot desalinized water.
Embodiment 1：
Phosphorous 1 ton of phosphoric acid or polyphosphoric acid is often produced, the air quality that producing yellow Phosphorus by electric oven institute by-product exhaust combustion needs is
34 tons, yellow phosphorus burning needs the quality of air to be 5 tons, and the air quality for heat recovery is 15 tons, for heat recovery
Water quality is 5 tons.
Micro- absorption-heat exchanger 2 used, the hydraulic radius of reaction plate parallel channels is 0.1mm, the hydraulic radius of dispersion hole
For 0.01mm, the axis of dispersion hole and the angle of parallel channels axis are 20 °, and the residence time of material is 0.1s；Heat exchanger plates are
Gap 0.1mm cavity is made up of hydraulic radius for 0.1mm parallel channels.
Embodiment 2：
Phosphorous 1 ton of phosphoric acid or polyphosphoric acid is often produced, the air quality that producing yellow Phosphorus by electric oven institute by-product exhaust combustion needs is
52 tons, yellow phosphorus burning needs the quality of air to be 10 tons, and the air quality for heat recovery is 40 tons, for heat recovery
Water quality is 30 tons.
Micro- absorption-heat exchanger 2 used, the hydraulic radius of reaction plate parallel channels is 10mm, the hydraulic radius of dispersion hole
For 2mm, the axis of dispersion hole and the angle of parallel channels axis are 55 °, and the residence time of material is 5s；Heat exchanger plates are gap
10mm cavity is made up of hydraulic radius for 10mm parallel channels.
Embodiment 3：
Phosphorous 1 ton of phosphoric acid or polyphosphoric acid is often produced, the air quality that producing yellow Phosphorus by electric oven institute by-product exhaust combustion needs is
70 tons, yellow phosphorus burning needs the quality of air to be 15 tons, and the air quality for heat recovery is 70 tons, for heat recovery
Water quality is 50 tons.
Micro- absorption-heat exchanger 2 used, the hydraulic radius of reaction plate parallel channels is 20mm, the hydraulic radius of dispersion hole
For 4mm, the axis of dispersion hole and the angle of parallel channels axis are 90 °, and the residence time of material is 10s；Heat exchanger plates are gap
20mm cavity is made up of hydraulic radius for 20mm parallel channels.
By the experiment of embodiment 1,2,3, above-mentioned test data can have a relatively good test structure, and it meets
While the production requirement of phosphoric acid or polyphosphoric acid, be conducive into the recycling of the heat energy during production again.
Claims (10)
1. a kind of thermal phosphoric acid and the micro- method for absorbing joint energy recovery of polyphosphoric acid, this method is first using phosphorus ore, carbon, silica as original
Expect to prepare yellow phosphorus, by-product tail gas and clinker under the hot environment that electric furnace is provided, then allow yellow phosphorus with air in yellow phosphorus burning stove
Interior mixed combining combustion generation phosphorus pentoxide, the phosphorus pentoxide of most relief generation and water reaction obtain phosphoric acid or polyphosphoric acid, its
It is characterised by：The heat of phosphorus pentoxide and water reaction heat is reclaimed with micro- absorption-heat exchanger, is reclaimed and filled with heat of slags
Put and the heat of clinker is reclaimed, reaction heat heat and the heat of slags of recovery are commonly connected in air heat exchanger that heat is made
Soft water, hot soft water carries out superheated steam by pipeline to yellow phosphorus burning stove and phosphorus furnace exhaust gas boiler, by association response heat,
The heat of clinker heat, by-product exhaust combustion heat and yellow phosphorus burning heat, realizes that heat energy high efficiente callback is utilized.
2. thermal phosphoric acid according to claim 1 and the micro- method for absorbing joint energy recovery of polyphosphoric acid, it is characterised in that：
Phosphorous 1 ton of phosphoric acid or polyphosphoric acid is often produced, the air quality that producing yellow Phosphorus by electric oven institute by-product exhaust combustion needs is 34-70
Ton, yellow phosphorus burning needs the quality of air to be 5-15 tons, and the air quality for heat recovery is 15-70 tons, is returned for heat
The water quality of receipts is 5-50 tons.
3. thermal phosphoric acid according to claim 1 and the micro- method for absorbing joint energy recovery of polyphosphoric acid, it is characterised in that：
Hot soft water is by pipeline by yellow phosphorus burning stove and phosphorus furnace exhaust gas boiler serial or parallel connection.
4. a kind of thermal phosphoric acid and the micro- device for absorbing joint energy recovery of polyphosphoric acid, it includes electric furnace, the outlet of electric furnace product
Respectively with yellow phosphorus burning stove（1）Entrance, phosphorus furnace exhaust gas boiler（11）Entrance and waste residue heat recovering device connection, its feature exist
In：Yellow phosphorus burning stove（1）Outlet and micro- absorption-heat exchanger（2）Entrance is connected, micro- absorption-heat exchanger（2）Outlet passes through heat
Reclaim servicing unit and be parallel to air converter with waste residue heat recovering device, the hot soft water outlet of air converter passes through pipeline
With yellow phosphorus burning stove（1）With phosphorus furnace exhaust gas boiler（11）Steam unit be attached.
5. thermal phosphoric acid according to claim 4 and the micro- device for absorbing joint energy recovery of polyphosphoric acid, it is characterised in that：
Described micro- absorption-heat exchanger 2 includes bottom plate（18）And cover plate（19）, in bottom plate（18）And cover plate（19）Between provided with one with
On by reaction plate（20）And heat exchanger plates（21）The cell cube of composition, in cover plate（19）Three turnings be respectively equipped with absorbent and enter
Mouthful（22）, cool brine import（23）With hot salt brine outlet（24）, absorbent entrance is corresponded in cell cube（22）, cool brine enters
Mouthful（23）With hot salt brine outlet（24）Position is respectively equipped with and reaction plate（20）Connect the absorbent passage and heat exchanger plates of UNICOM（21）
The cool brine passage and hot salt brine passage being connected, in bottom plate（18）, reaction plate（20）And heat exchanger plates（21）Upper face it is uniform
Provided with parallel channels, it is provided with absorbent passage and moves towards vertical dispersion plate with parallel channels（25）, in dispersion plate（25）On
Provided with dispersion hole（26）, in the bottom plate with absorbent passage the same side（18）It is provided with gas feed（27）, away from absorbent
The reaction plate of passage side（20）Provided with gas-liquid mixture outlet（28）.
6. thermal phosphoric acid according to claim 5 and the micro- device for absorbing joint energy recovery of polyphosphoric acid, it is characterised in that：
Described cell cube is that up-down structure is reaction plate（20）- heat exchanger plates（21）Or be that up-down structure is heat exchanger plates（21）- reaction plate
（20）, in heat exchanger plates（21）Bottom provided with being bumped into dispersion plate（25）Groove.
7. thermal phosphoric acid according to claim 5 and the micro- device for absorbing joint energy recovery of polyphosphoric acid, it is characterised in that：
Described cool brine import（23）With hot salt brine outlet（24）It is distributed on heat exchanger plates（21）Diagonal on.
8. thermal phosphoric acid according to claim 5 and the micro- device for absorbing joint energy recovery of polyphosphoric acid, it is characterised in that：
Described reaction plate（20）The hydraulic radius of parallel channels is 0.1mm-20mm, dispersion hole（26）Hydraulic radius be 0.01mm-
4mm, dispersion hole（26）The angle of axis and parallel channels axis be 20 ° -90 °, the residence time of material is 0.1s-10s；Change
Hot plate（21）Cavity for gap 0.1mm-20mm or the parallel channels for being 0.1mm-20mm by hydraulic radius are constituted.
9. thermal phosphoric acid according to claim 4 and the micro- device for absorbing joint energy recovery of polyphosphoric acid, it is characterised in that：
Described waste residue heat recovery system includes slag emission mouthful, slag emission mouthful and tilted-putted rotating cylinder（13）It is connected, is inclining
Oblique rotating cylinder（13）Low side provided with cooled slag outlet and cold air intake, cooled slag outlet and cold air intake with comb
Cold（12）It is connected, grate-cooler（12）Black furnace slag outlet and air intake are provided with, in rotating cylinder（13）It is high-end, provided with hot empty
Gas outlet, hot-air outlet is connected with air converter.
10. thermal phosphoric acid according to claim 4 and the micro- device for absorbing joint energy recovery of polyphosphoric acid, its feature exist
In：Described heat recovery servicing unit includes knockout drum（3）, knockout drum（3）Gaseous phase outlet and exhaust gas cooler（4）Connection,
Exhaust gas cooler（4）Provided with soft water import, offgas outlet and soft water preheating outlet, offgas outlet connects with exhaust gas processing device
Connect, soft water preheating outlet and 85 phosphoric acid coolers（7）On soft water preheating import connection, 85 phosphoric acid coolers（7）Hot soft water goes out
Mouth and concentrated acid cooler（6）It is connected, the exhaust gas processing device and concentrated acid cooler（6）By circulating line with it is micro- absorb-
Heat exchanger（2）Circulation water inlet be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498062.3A CN107200314B (en) | 2017-06-27 | 2017-06-27 | A kind of thermal phosphoric acid and micro- absorb of polyphosphoric acid combine the recoverable method of heat and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498062.3A CN107200314B (en) | 2017-06-27 | 2017-06-27 | A kind of thermal phosphoric acid and micro- absorb of polyphosphoric acid combine the recoverable method of heat and its device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107200314A true CN107200314A (en) | 2017-09-26 |
| CN107200314B CN107200314B (en) | 2018-05-29 |
Family
ID=59907781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710498062.3A Active CN107200314B (en) | 2017-06-27 | 2017-06-27 | A kind of thermal phosphoric acid and micro- absorb of polyphosphoric acid combine the recoverable method of heat and its device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107200314B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213442A (en) * | 2021-04-28 | 2021-08-06 | 贵州福泉川东化工有限公司 | Mineralization-integrated low-residual low-emission phosphorus deep processing equipment and using method thereof |
| CN114314543A (en) * | 2021-12-10 | 2022-04-12 | 浙江彩蝶实业股份有限公司 | Synthesis process and application of phosphorus-nitrogen flame retardant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1355133A (en) * | 2001-12-28 | 2002-06-26 | 清华大学 | Equipment for recovering and utilizing heat energy generated by phosphor combustion and system for preparing phosphoric acid by hot method |
| CN102015669A (en) * | 2005-12-22 | 2011-04-13 | 国际壳牌研究有限公司 | A process for the preparation of an olefin oxide or a chemical derivable from an olefin oxide |
| CN102556990A (en) * | 2011-12-29 | 2012-07-11 | 广西利达磷化工有限公司 | Device for absorbing heat energy from combustion of yellow phosphorus with heat transfer oil |
| CN204125169U (en) * | 2014-08-29 | 2015-01-28 | 甘肃瓮福化工有限责任公司 | Improve the device of steam utilization in Phosphoric Acid Concentration process |
| CN106672931A (en) * | 2017-02-24 | 2017-05-17 | 广西越洋生物技术有限公司 | Method and equipment for producing polyphosphoric acid with wet process phosphoric acid |
-
2017
- 2017-06-27 CN CN201710498062.3A patent/CN107200314B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1355133A (en) * | 2001-12-28 | 2002-06-26 | 清华大学 | Equipment for recovering and utilizing heat energy generated by phosphor combustion and system for preparing phosphoric acid by hot method |
| CN102015669A (en) * | 2005-12-22 | 2011-04-13 | 国际壳牌研究有限公司 | A process for the preparation of an olefin oxide or a chemical derivable from an olefin oxide |
| CN102556990A (en) * | 2011-12-29 | 2012-07-11 | 广西利达磷化工有限公司 | Device for absorbing heat energy from combustion of yellow phosphorus with heat transfer oil |
| CN204125169U (en) * | 2014-08-29 | 2015-01-28 | 甘肃瓮福化工有限责任公司 | Improve the device of steam utilization in Phosphoric Acid Concentration process |
| CN106672931A (en) * | 2017-02-24 | 2017-05-17 | 广西越洋生物技术有限公司 | Method and equipment for producing polyphosphoric acid with wet process phosphoric acid |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213442A (en) * | 2021-04-28 | 2021-08-06 | 贵州福泉川东化工有限公司 | Mineralization-integrated low-residual low-emission phosphorus deep processing equipment and using method thereof |
| CN114314543A (en) * | 2021-12-10 | 2022-04-12 | 浙江彩蝶实业股份有限公司 | Synthesis process and application of phosphorus-nitrogen flame retardant |
| CN114314543B (en) * | 2021-12-10 | 2023-05-30 | 浙江彩蝶实业股份有限公司 | Synthesis process and application of phosphorus-nitrogen flame retardant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107200314B (en) | 2018-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104555946A (en) | Method for jointly producing sulphuric acid and cement clinker by using sulphur gas to reduce gypsum | |
| CN101671311A (en) | Energy-saving technology for producing melamine by one-step method | |
| CN107200314B (en) | A kind of thermal phosphoric acid and micro- absorb of polyphosphoric acid combine the recoverable method of heat and its device | |
| KR20110106285A (en) | System for producing silicon with improved resource utilization | |
| CN103896280A (en) | Operation method of polycrystalline silicon cold hydrogenation | |
| CN107022659B (en) | High-temperature slag waste heat gradient recycling system | |
| CN112138615A (en) | Preparation device and method of nitrous oxide | |
| CN105567342A (en) | Device and method of utilizing blast furnace slag as heat carrier to prepare biomass oil | |
| CN101565172B (en) | Method for recovering sulfur from byproduct of acid gas generated in production of rubber chemicals | |
| CN207158791U (en) | The micro- device for absorbing joint energy recovery of a kind of thermal phosphoric acid and polyphosphoric acid | |
| CN206843069U (en) | A kind of device for preparing thermal phosphoric acid and reclaiming heat energy | |
| CN101811683B (en) | Method for producing phosphates with hot-process phosphoric acid device by utilizing waste heat | |
| CN102923649A (en) | Reduction hydrogen production compound furnace and device and method for ammonium paratungstate tungsten production by using same | |
| CN102556989A (en) | Production of phosphoric acid and multi-trace element potassium dihydrogen phosphate through using waste phosphorus mud | |
| CN110054152A (en) | A kind of online upgrading processing method of coal gas of converter | |
| CN109573971A (en) | A kind of device producing yellow phosphorus | |
| CN108408705A (en) | A kind of phosphoric acid production device and production method based on multistage fluidized bed | |
| CN201295608Y (en) | Tube array type self-equilibrating isothermal reactor | |
| CN101077855B (en) | Technique and device for continuously dehydrogenating and producing sodium oxalate by dehydrogenation reaction remaining heat | |
| CN209685316U (en) | A kind of device producing yellow phosphorus | |
| CN109437604B (en) | Method for realizing sensible heat recovery and tail gas utilization of burnt lime by utilizing methane reforming | |
| CN112624069A (en) | Yellow phosphorus preparation process based on oxygen thermal method | |
| CN206384845U (en) | Rotary hearth furnace | |
| CN107140613A (en) | A kind of method and its device for preparing thermal phosphoric acid and reclaiming heat energy | |
| CN108910928A (en) | Co-production method of two metal chlorides and two metal chlorides |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231218 Address after: Room 3025 and 3026, Third Floor, Phase I Building, Hubei Agricultural Science and Technology Research and Extension Center, No. 53 Nanhu Avenue, Hongshan District, Wuhan City, Hubei Province, 430070 Patentee after: WUHAN DONGSHENG JIENENG TECHNOLOGY Co.,Ltd. Address before: 550025 China Gui'an E-commerce Ecological City, Jing'an Avenue, Gui'an New District, Guiyang City, Guizhou Province Patentee before: GUIZHOU DONGSHENG JIENENG TECHNOLOGY CO.,LTD. |