CN105236376A - Glyphosate mother liquor resource utilization system - Google Patents
Glyphosate mother liquor resource utilization system Download PDFInfo
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- CN105236376A CN105236376A CN201510720874.9A CN201510720874A CN105236376A CN 105236376 A CN105236376 A CN 105236376A CN 201510720874 A CN201510720874 A CN 201510720874A CN 105236376 A CN105236376 A CN 105236376A
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Abstract
The invention discloses a glyphosate mother liquor resource utilization system, and relates to the environmental protection technical field of treating the three wastes of waste liquid, waste gas and solid waste. The system mainly comprises a mother liquor concentration system, a thermal oxidation reaction system, a residual heat recovery system, a flue gas environment-friendly treatment system, and a solid product recovery system. The mother liquor concentration system is respectively communicated with the thermal oxidation reaction system and the residual heat recovery system. The thermal oxidation reaction system is communicated with the residual heat recovery system and the solid product recovery system. The residual heat recovery system is communicated with the flue gas environment-friendly treatment system and the solid product recovery system. The flue gas environment-friendly treatment system is communicated with the solid product recovery system. With the system provided by the invention, chemical engineering waste liquid can be treated with an environment-friendly manner. The chemical engineering waste can be subjected to a thermal oxidation reaction, such that valuable chemical engineering products can be produced, and a purpose of resource utilization is achieved. Also, waste heat is fully utilized, such that energy can be saved.
Description
Technical field
The present invention relates to a kind of mother liquor containing high density organophosphorus, nitrogen and salinity pesticide industry and carry out minimizing, innoxious, resource utilization environmental protection treatment technology, particularly relate to a kind of recycling mother solution of glyphosate and utilize system, belong to the environmental technology field of waste liquid, waste gas, useless solid disposal of waste gas, water and industrial residue.
Background technology
A large amount of factory effluent containing triethylamine, glyphosate, glycine, phosphorous acid, the sweet phosphine of increasing, methyl alcohol, formaldehyde and high salt concentration is produced in glyphosate production process, mother liquor is mainly carried out concentrated remove portion salinity by domestic glyphosate production producer, then add the former powder of glyphosate, be mixed with 10% gyphosate solution and sell.Because long-term application contains 10% aqua of a large amount of inorganic salt, cause serious soil compaction and salinization, the formaldehyde simultaneously in aqua, increase sweet phosphine etc. and enter soil and water, to ecotope and human body, also there is larger potential hazard.Therefore, in February, 2009 Ministry of Agriculture, Ministry of Industry and Information combines No. 1158th, issue bulletin, the gyphosate solution of clear stipulaties active constituent content less than 30% will all stop producing before the end of the year 2009, stop selling and use with the aqua produced before the end of the year 2011.
Glyphosate mother solution complicated component, the mother liquor composition difference that different synthesis techniques produces is larger, mainly comprise the materials such as triethylamine, glyphosate, glycine, phosphorous acid, the sweet phosphine of increasing, methyl alcohol, formaldehyde and high salt concentration, if recycled, can save production cost, improve Enterprise Integrated competitive power.
Available low-concentration alkali liquor desorption after charcoal absorption glyphosate, overall desorption efficiency was not high at that time, and about 57%, during desorption incomplete active carbon reclamation, adsorption effect is subject to obvious restriction, and gac price is higher, the glyphosate mother solution processing cost as enormous amount will improve greatly.Cl
-the site on anionite-exchange resin surface can be competed, at Cl with glyphosate anion
-even can glyphosate be stoped completely to adsorb during too high levels, for the mother liquid disposal of high content of salt, must first reduce Cl in mother liquor
-content.Although Cl
-less to the Adsorption Effect of iron, aluminum oxide, but the existence of phosphate radical, orthophosphite has it and more obviously affects, the treatment effect for the glyphosate mother solution of high COD, high total phosphorus and high salinity needs checking further.Embrane method carries out industrialized application at present, but the many kinds of substances such as the phosphite in mother liquor obviously affect the work-ing life of membrane module, and fouling membrane is serious, and frequent membrane module of changing brings larger economical load to enterprise.Chemical precipitation method obtains glyphosate-metal salt precipitate thing, adopts which kind of mode that glyphosate is effectively reclaimed and also will study further.
Therefore, glyphosate waste water administers the main bugbear having become puzzlement agricultural chemicals enterprise and produced, survive.
Incineration technology is a kind of simple, efficient, feasible method for treating waste liquid, burning method for the treatment of difficult biochemical treatment, concentration is high, toxicity is large, the organic liquid waste of complicated component is a technology having application prospect.It both can incinerate objectionable impurities, can recycle again waste heat, reduce processing cost, reach the object of comprehensive utilization of waste materials, protection of the environment.The processing technological flow of different organic liquid wastes is looked waste liquid character and is determined, the organic liquid waste very high for COD, calorific value is also very high directly can enter incinerator and carry out burning disposal; And be not very high waste liquid for calorific value, then can add the burning that auxiliary fuel helps waste liquid; Burning after first can carrying out evaporation concentration for the organic liquid waste that water content is higher.
Containing a large amount of industrial chemicals in high concentration salty organic waste liquid, at present, adopt the incineration system (except alkali collection) of incineration technology process high concentration salty organic waste liquid all not carry out recycling to the product after burning, cause the waste of secondary pollution and resource.
Patent CN103062777A proposes two-part incinerator and incineration system, comprise vertical heater, horizontal chamber oven, Waste liquid atomization rifle, fuel combustion rifle, the circulating fire grate of scale, secondary combustion settling pocket, heat exchange unit, smoke eliminator etc., wherein part-structure and a kind of recycling mother solution of glyphosate of the application utilize system class seemingly.But the two-part incinerator described in this patent and incineration system have following shortcoming: the outlet of (1) vertical heater is directly connected with secondary combustion settling pocket, the a large amount of saliferous solid particulates carried in flue gas are heated again, it is made to become molten state, the saliferous solid particulate of the molten state of sedimentation can block the mud hole of secondary combustion settling pocket, the saliferous solid particulate being brought into the molten state of heat exchange unit can adhere on heat transfer tube, cause heat exchange efficiency to reduce, even block exhaust gases passes; (2) the circulating fire grate front of scale is for arranging hopper, cannot by unburn completely saliferous solid particulate again send back to horizontal chamber oven continue burn, the industrial chemicals impurity produced in burning process is more; (3) Waste liquid atomization spray gun is two fluidic structures atomizing guns, skin is compressed air line, rule of thumb under normal temperature, glyphosate mother solution viscosity is higher, all need heating to reduce its viscous modulus, and pressurized air mostly is normal temperature, adopts pressurized air can cool glyphosate mother solution as atomizing medium, viscous modulus increases, blocking rifle head, affect atomizing effect, and atomizing effect is the important factor affecting efficiency of combustion; (4) vertical heater, horizontal chamber oven and secondary combustion settling pocket do not limit incineration temperature, though from described collection entirely for can find out solid materials for two-stage combustion but be substantially all low-temperature burning, organism in waste liquid can not be burned completely, also just can not meet country's " dangerous waste incineration Environmental capacity standard "; (5) spray into the glyphosate mother solution of vertical heater not through concentration through Waste liquid atomization spray gun, containing a large amount of water in glyphosate mother solution, making this part water reach combustion temperature in hearth needs to consume a large amount of auxiliary fuels, causes the waste of the energy.
Patent CN103438466A proposes a kind of method and the device that utilize glyphosate mother solution calcining at constant temperature production trisodium phosphate, comprise incinerator, tornado dust collector, waste heat boiler, slag remover, sack cleaner, wrapping machine, washing spray column, organophosphorus waste-solution line, combustion air pipeline, gas pipeline etc., wherein part-structure and a kind of recycling mother solution of glyphosate of the application utilize system class seemingly.But a kind of method of glyphosate mother solution calcining at constant temperature production trisodium phosphate and the device of utilizing described in this patent has following shortcoming: three entrances of (1) incinerator are respectively glyphosate mother solution pipeline, combustion air pipeline, gas pipeline from the bottom to top, all concentrated supplies, combustion zone is more concentrated, cause local temperature too high, more thermal NO x can be produced, and rear portion does not have denitrification apparatus, environmental protection is not up to standard; (2) three entrances of incinerator are respectively glyphosate mother solution pipeline, combustion air pipeline, gas pipeline from the bottom to top, all concentrated supplies, combustion zone is more concentrated, cause local temperature too high, temperature field is uneven, make glyphosate mother solution can not perfect combustion, trisodium phosphate solid particles surface also has organic substance residues, and trisodium phosphate purity is lower; (3) glyphosate mother solution directly sprays into burner hearth by topping-up pump, and droplet dia is comparatively large, and the evaporation of glyphosate mother solution, decomposition, all corresponding increase of oxidization time, be unfavorable for the thorough burning of glyphosate mother solution; (4) salt produced in incinerator combustion process sends into slag remover after sedimentation under gravity, because the salt produced in combustion processes is molten state, enters skim gate and can be bonded on skim gate internal transmission device, finally cause skim gate to block; (5) be provided with two combustion chambers in incinerator, in dual firing chamber, temperature of reaction controls at 900 ~ 1000 DEG C, and the salt of molten state enters tornado dust collector with flue gas, and the salt of molten state can bond along tornado dust collector circumferential direction, tornado dust collector blocking the most at last; (6) tornado dust collector only arrange one-level, and dust removing effects is undesirable, do not have the salt of separated molten state easily to block rear portion heating surface and flue; (7) spray into the glyphosate mother solution of vertical heater not through concentration through Waste liquid atomization spray gun, containing a large amount of water in glyphosate mother solution, making this part water reach combustion temperature in hearth needs to consume a large amount of auxiliary fuels, causes the waste of the energy; (8) 3 cooling rooms are provided with in waste heat boiler, the cavity type heating surface that cooling room is generally gone along with sb. to guard him by membrane wall, main based on radiation heat transfer, good effect of heat exchange during flue-gas temperature height, when flue-gas temperature is low, heat transfer effect is bad, need to increase heating surface to reduce flue-gas temperature, add equipment initial investment cost; (9), after induced draft fan is arranged in washing spray column, increase induced draft fan load, power consumption increases.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of recycling mother solution of glyphosate and utilizing system.Realize glyphosate mother solution minimizing, harmless treatment, reclaim the object that the Chemicals produced in burning process instant heating oxidation reaction process realize resource utilization simultaneously, and recycled reach object energy-conservation in environmental protection treatment process by burning the fume afterheat produced.In this system, a constant temperature incinerator controls fire box temperature 650-750 DEG C, glyphosate mother solution completes drying in a constant temperature incinerator, pyrolysis, oxidation, unburnt larger solid particulate and through the less solid particulate that cyclonic separator is separated deliver to large scale traveling-grate stoker continue burn, thorough removal residual organic matter, reclaim trisodium phosphate, unburnt larger molecular organics gas to be turned back in a constant temperature incinerator by water-cooled scraper conveyor through gas solid separation rear portion and continues thermostatically heating and burning, another a small amount of part enters secondary high-temperature incinerator, secondary high-temperature incinerator controls fire box temperature 1100 DEG C, thoroughly organism is destroyed by fire, produce the trisodium phosphate of a small amount of molten state simultaneously.The flue gas of the trisodium phosphate containing molten state enters the larger cooling room in cross section, the high-temperature flue gas radiant cooling room be set up cools rapidly and becomes fragility trisodium phosphate particle, the solid particulate that particle diameter is larger relies on self gravitation to move downward and falls into bottom ash dropping hopper, remaining fine fraction trisodium phosphate dust brings boiler evaporator, boiler economizer and sack cleaner into respectively with flue gas, and collects at boiler evaporator, boiler economizer and sack cleaner place.While reclaiming trisodium phosphate, producing saturation steam for owner by burning the fume afterheat produced, realizing the minimizing of glyphosate mother solution, innoxious, recycling treatment.
For realizing above object, by the following technical solutions: recycling mother solution of glyphosate utilizes system, comprise mother liquor concentrations system, thermal oxidative reaction system, residual neat recovering system, fume environment protection treatment system and solid product recovery system, mother liquor concentrations system is communicated with residual neat recovering system with thermal oxidative reaction system respectively, thermal oxidative reaction system is communicated with solid product recovery system with residual neat recovering system, residual neat recovering system is communicated with solid product recovery system with fume environment protection treatment system, and fume environment protection treatment system is communicated with solid product recovery system;
Described mother liquor concentrations system mainly comprises first evaporator, second stage vaporizer, third evaporator, condenser, first step recycle pump, second stage recycle pump, third stage recycle pump;
Described thermal oxidative reaction system mainly comprises constant temperature incinerator, cyclonic separator I, cyclonic separator II, secondary high-temperature incinerator and a large scale traveling-grate stoker, one time constant temperature incinerator comprises vertical constant temperature oven, horizontal constant temperature oven, and forms a closed thermooxidizing burner hearth with large scale traveling-grate stoker;
Described residual neat recovering system mainly comprises high-temperature flue gas radiant cooling room, boiler evaporator, boiler economizer, boiler-steam dome, thermal deaerator and boiler steam-water pipeline;
Described fume environment protection treatment system mainly comprises SCR denitration device, sack cleaner, deacidifying flue gas system, chimney;
Described solid product recovery system mainly comprises water-cooled scraper conveyor I, water-cooled scraper conveyor II, water-cooled scraper conveyor III, twin shaft slag cooler, circulating cooling water tank, circulating cooling water pump.
Described mother liquor concentrations system adopts triple-effect evaporator, and first evaporator, second stage vaporizer, third evaporator, condenser are communicated with successively, and are furnished with first step recycle pump, second stage recycle pump, third stage recycle pump; Concentrated mother liquor outlet in mother liquor concentrations system is connected with mother liquor tank entrance, and noncondensable gas mouth is connected with a constant temperature incinerator, and the sewage condensed condensed water of processing unit and low-pressure steam of anhydrating exports and is connected with the deoxygenator of residual neat recovering system.
Described thermal oxidative reaction system adopts secondary to burn structure, one time constant temperature incinerator comprises vertical constant temperature oven and horizontal constant temperature oven, vertical constant temperature oven is evenly arranged burner I from top to bottom successively, burner I is connected with surge tank by gas pipeline, burner I is connected with gas blower I by air line, liquid waste spray gun is arranged in the middle part of vertical constant temperature oven, liquid waste spray gun is exported with mother liquor tank by mother liquor pump and is connected, horizontal constant temperature oven is evenly arranged burner II from front to back successively, burner II is connected with surge tank by gas pipeline, burner II is connected with gas blower I by air line, a constant temperature incinerator smoke outlet is connected with cyclonic separator I smoke inlet, cyclonic separator I exhanst gas outlet is connected with cyclonic separator II smoke inlet, cyclonic separator II exhanst gas outlet is connected with secondary high-temperature incinerator smoke entrance, secondary high-temperature incinerator top circumferential direction is evenly arranged burner III, burner III is connected with surge tank by gas pipeline, burner III is connected with gas blower I by air line, cyclonic separator I is connected star-shaped discharge valve I and star-shaped discharge valve II respectively with cyclonic separator II bottom, large scale traveling-grate stoker bottom is ash dropping hopper I, large scale traveling-grate stoker side air compartment connects gas blower II.
Described liquid waste spray gun adopts atomizing lance, and atomizing medium is saturation steam, is not only conducive to the cementability eliminating high-strength glyphosate waste liquid, also helps the low temperature crystallization particulate matter of dissolution of high-concentration glyphosate waste liquid, with anti-clogging plug atomizing lance.
Described cyclonic separator I and cyclonic separator II inside adopt jacket type structure, a vacuum interlayer is formed between two-layer cyclone cylinder, ash-laden gas forwards internal layer cyclone cylinder to after outer cyclone cylinder to be continued to rotate, in flue gas, grit relies on the inertia effect of action of gravity and outer cyclone cylinder by the ash bucket that deposits in this vacuum interlayer bottom cyclonic separator, adopts the cyclonic separator of jacket type structure to be conducive to provide the gas-solid disngaging efficiency of cyclonic separator.
Liquid waste spray gun adopts steam atomizing spray gun, and waste liquid decomposes rapidly after being sprayed onto burner hearth, is oxidized.The solid particulate dependence self gravitation that the particle diameter of reuniting is larger moves downward to be fallen on fire grate; The solid particulate that particle diameter is less moves upward with flue gas and enters cyclonic separator I and cyclonic separator II, after major part solid particulate is here separated, deliver to water-cooled scraper conveyor I by star-shaped discharge valve and material pipe, solid particulate is delivered to hopper and is entered large scale traveling-grate stoker by water-cooled scraper conveyor I.Horizontal constant temperature oven is evenly arranged burner II from front to back successively, and burner II is connected with surge tank by gas pipeline, is connected with gas blower I by air line.Guarantee that a constant temperature incinerator burner hearth maintains between constant temperature 650 ~ 750 DEG C.
It is large scale traveling-grate stoker bottom a constant temperature incinerator, the solid particulate that the particle diameter fallen by vertical constant temperature oven is larger and the less solid particulate of particle diameter entered by hopper collect in large scale traveling-grate stoker front portion, driven mobile successively by being distributed on the burner II of horizontal constant temperature oven backward by large scale traveling-grate stoker, organism is thoroughly burned, finished product (trisodium phosphate) continues to move backward, fall into afterbody ash bucket, logical charge tube enters twin shaft slag cooler and cools.Large scale traveling-grate stoker bottom is ash dropping hopper, and twin shaft slag cooler and ash dropping hopper lead to charge tube and be connected with water-cooled scraper conveyor II, and finished product (trisodium phosphate) is delivered to wrapping machine and packs by water-cooled scraper conveyor II.Large scale traveling-grate stoker side is cooling air air compartment, and cooling air is evenly distributed to below fire grate by air compartment, carries out cooling protection through large scale traveling-grate stoker to fire grate segment.Air compartment is connected with gas blower II by air line.
Cyclonic separator I and cyclonic separator II, cyclonic separator I entrance is connected with a constant temperature incinerator by flue, exports and is connected with cyclonic separator II entrance by flue, and cyclonic separator II is exported and is connected with secondary high-temperature incinerator by flue.
Secondary high-temperature incinerator top circumferential direction is evenly arranged burner III, and burner III is connected with surge tank by gas pipeline, is connected with gas blower I by air line.Control burner hearth and maintain about 1100 DEG C, in a constant temperature incinerator, unburnt organism is here thoroughly decomposed, is oxidized, and generates more micromolecular CO
2, H
2the trisodium phosphate of the innoxious substances such as O, a small amount of oxynitride and molten state.
The high-temperature flue gas radiant cooling room smoke inlet of described residual neat recovering system exports with the secondary high-temperature incinerator smoke of thermal oxidative reaction system and is connected, high-temperature flue gas radiant cooling room exhanst gas outlet is connected with boiler evaporator smoke inlet, boiler evaporator exhanst gas outlet respectively with boiler economizer smoke inlet, boiler economizer exhanst gas outlet is connected with the SCR denitration device smoke inlet of fume environment protection treatment system, SCR denitration device exhanst gas outlet is connected with boiler economizer smoke inlet, high-temperature flue gas radiant cooling room, boiler evaporator, boiler economizer, boiler-steam dome, thermal deaerator and service pump are connected by boiler steam-water pipeline, high-temperature flue gas radiant cooling room bottom is provided with ash dropping hopper II, boiler evaporator bottom is provided with ash dropping hopper III, boiler economizer bottom is provided with ash dropping hopper IV.Described high-temperature flue gas cooling room adopts membrane wall to surround; Described boiler evaporator and boiler economizer are made up of convection bank.
High-temperature flue gas radiant cooling room is full film type wall structure, the flue gas of the trisodium phosphate containing molten state enters the larger cooling room in cross section, fragility trisodium phosphate particle is become because heat loss through radiation effect is cooled rapidly, the solid particulate that particle diameter is larger relies on self gravitation to move downward and falls into bottom ash dropping hopper, logical charge tube enters water-cooled scraper conveyor III, and the solid particulate that particle diameter is less enters boiler evaporator with flue gas; Water heat absorption in membrane wall becomes steam water interface, enters boiler-steam dome through boiler steam-water pipeline.Boiler evaporator is convection heating surface, the solid particulate collision convection heating surface of the fragility of carrying in flue gas, and fraction solids particle is blocked and falls into bottom ash dropping hopper, and logical charge tube enters water-cooled scraper conveyor III; Water heat absorption in convection heating surface becomes steam water interface, enters boiler-steam dome through boiler steam-water pipeline.Boiler economizer is convection heating surface, and the solid particulate of the fragility of carrying in flue gas relies on the effect of inertia, and fraction solids particle falls into bottom ash dropping hopper, and logical charge tube enters water-cooled scraper conveyor III; Enter boiler-steam dome by feedwater line after water in boiler economizer is heated, realize oiler feed.Boiler-steam dome is connected to form loop line with high-temperature flue gas radiant cooling room, boiler evaporator respectively by steam-water pipeline, the steam produced is separated through steam separator in boiler-steam dome, wherein steam heating user uses, and the water separated continues to be heated phase transformation in boiler systems.Thermal deaerator makes full use of low taste steam thermal energy and realize deoxygenation in deoxygenator, improves water temperature simultaneously and save thermal deaerator to consume quantity of steam.
Deacidification system in described fume environment protection treatment system mainly comprises deacidifying flue gas tower, alkali lye agitator tank, alkali lye pond, topping-up pump, NaOH solution circulating pump composition, the boiler economizer exhanst gas outlet of residual neat recovering system is connected with sack cleaner smoke inlet, sack cleaner exhanst gas outlet is connected with deacidifying flue gas tower flue gas entrance by after induced draft fan, the outlet of deacidifying flue gas tower flue gas is connected with chimney smoke entrance, chimney is by flue gas discharged to air, and sack cleaner bottom is provided with ash dropping hopper V; In deacidifying flue gas system, from deacidifying flue gas tower bottom alkali lye circulatory pool, extract alkali lye atomization by NaOH solution circulating pump pumps in deacidifying flue gas tower, the alkali lye of atomization sprays into against flue gas flow direction, with SO2, HCL, SO32-, CL-in flue gas etc. are sour, the object that neutralization reaction reaches depickling occurs.Be solid base or liquid NaOH in described agitator tank, agitator tank is connected with cleaning water, the uniform alkali lye of agitator tank is connected to alkali lye pond by pipeline, and alkali lye pond is connected with extracting tower by topping-up pump, and deacidifying flue gas tower inside is also provided with sieve tray and Venturi tube.
The water-cooled scraper conveyor I of described solid product recovery system, water-cooled scraper conveyor II, water-cooled scraper conveyor III, twin shaft slag cooler, cooling water tank, cooling circulating water pump are connected by circulation line, water-cooled scraper conveyor I material inlet is connected with star-shaped discharge valve II with star-shaped discharge valve I, water-cooled scraper conveyor I material outlet is connected with constant temperature hopper again, constant temperature hopper is connected with large scale traveling-grate stoker front portion again, the ash dropping hopper I of fore portion is connected with water-cooled scraper conveyor II, the ash dropping hopper I of rear section is connected with twin shaft slag cooler, twin shaft slag cooler material outlet is connected with water-cooled scraper conveyor II, the solid substances of collection is sent in a constant temperature incinerator by large scale traveling-grate stoker again, by burner II in horizontal constant temperature oven to after its thermostatically heating, twin shaft slag cooler material inlet is fallen into from large scale traveling-grate stoker afterbody, water-cooled scraper conveyor II tail end is provided with wrapping machine, water-cooled scraper conveyor III exports and twin shaft slag cooler material inlet, water-cooled scraper conveyor III respectively with ash dropping hopper II, ash dropping hopper III, ash dropping hopper IV and ash dropping hopper V are connected, the solid finished product trisodium phosphate that plate transfer roller III is collected is transported to twin shaft slag cooler material inlet, finished product (trisodium phosphate) is delivered to wrapping machine and packs by water-cooled scraper conveyor II.
beneficial effect of the present invention: compared with prior art, realize glyphosate mother solution minimizing, harmless treatment, reclaim the object that the Chemicals produced in burning process instant heating oxidation reaction process realize resource utilization simultaneously, and recycled reach object energy-conservation in environmental protection treatment process by burning the fume afterheat produced.
Accompanying drawing explanation
Fig. 1 is the process flow sheet that a kind of recycling mother solution of glyphosate of the present invention utilizes system;
Fig. 2 is steam atomizing spray gun schematic diagram of the present invention;
Fig. 3 is cyclonic separator schematic diagram of the present invention.
As shown in the figure: 1, waste liquid tank, 2, surge tank, 3, waste drains pump, 4, liquid waste spray gun, 5, blower fan I, 6, blower fan II, 7, water-cooled scraper conveyor I, 8, constant temperature hopper again, 9, burner II, 10, large scale traveling-grate stoker, 11, ash dropping hopper I, 12, water-cooled scraper conveyor II, 13, wrapping machine, 14, a constant temperature incinerator, 15, burner I, 16, cyclonic separator I, 17, star-shaped discharge valve I, 18, cyclonic separator II, 19, star-shaped discharge valve II, 20, burner III, 21, secondary high-temperature incinerator, 22, high-temperature flue gas radiant cooling room, 23, ash dropping hopper II, 24, water-cooled scraper conveyor III, 25, twin shaft slag cooler, 26, boiler-steam dome, 27, boiler steam-water pipeline, 28, boiler evaporator, 29, ash dropping hopper III, 30, valve I, 31, valve III, 32, valve II, 33, SCR denitration device, 34, boiler economizer, 35, ash dropping hopper IV, 36, mother liquor concentrations system, 37, boiler feedpump, 38, thermal deaerator, 39, sack cleaner, 40, ash dropping hopper V, 41, induced draft fan, 42, circulating cooling water tank, 43, circulation line, 44, circulating cooling water pump, 45, deacidifying flue gas tower, 46, topping-up pump, 47, alkali lye pond, 48, alkali lye agitator tank, 49, NaOH solution circulating pump, 50, chimney, 51, thermal oxidative reaction system, 52, bootstrap system, 53, fume environment protection treatment system, 54, solid product recovery system, 55, deacidifying flue gas system, 56, first evaporator, 57, second stage vaporizer, 58, third evaporator, 59, condenser, 60, first step recycle pump, 61, second stage recycle pump, 62, third stage recycle pump, 63, vertical constant temperature oven, 64, horizontal constant temperature oven, 65, alkali lye circulatory pool.
Embodiment
Embodiment
Below in conjunction with accompanying drawing to the present invention to further illustrating;
A kind of recycling mother solution of glyphosate utilizes system, comprise mother liquor concentrations system (36), thermal oxidative reaction system (51), residual neat recovering system (52), fume environment protection treatment system (53) and solid product recovery system (54), mother liquor concentrations system (36) is communicated with residual neat recovering system (52) with thermal oxidative reaction system (51) respectively, thermal oxidative reaction system (51) is communicated with solid product recovery system (54) with residual neat recovering system (52), residual neat recovering system (52) is communicated with solid product recovery system (54) with fume environment protection treatment system (53), fume environment protection treatment system (53) is communicated with solid product recovery system (54),
Described mother liquor concentrations system (36) adopts triple-effect evaporator, mainly comprises first evaporator (56), second stage vaporizer (57), third evaporator (58), condenser (59), first step recycle pump (60), second stage recycle pump (61), third stage recycle pump (62); First evaporator (56), second stage vaporizer (57), third evaporator (58), condenser (59) are communicated with successively, and are furnished with first step recycle pump (60), second stage recycle pump (61), third stage recycle pump (62); Waste liquid outlet in mother liquor concentrations system (36) after mother liquor concentrations is connected with waste liquid tank (1) entrance, noncondensable gas mouth is connected with a constant temperature incinerator (14), and the sewage condensed condensed water outlet of processing unit and low-pressure steam of anhydrating is connected with the deoxygenator (38) of residual neat recovering system (52).
Described thermal oxidative reaction system (51) adopts secondary to burn structure, mainly comprise constant temperature incinerator (14), cyclonic separator I (16), cyclonic separator II (18), secondary high-temperature incinerator (21) and a large scale traveling-grate stoker (10), one time constant temperature incinerator comprises vertical constant temperature oven (63), horizontal constant temperature oven (64), and forms a closed thermooxidizing burner hearth with large scale traveling-grate stoker (10), one time constant temperature incinerator (14) comprises vertical constant temperature oven (63) and horizontal constant temperature oven (64), vertical constant temperature oven (63) is evenly arranged burner I (15) from top to bottom successively, burner I (15) is connected with surge tank (2) by gas pipeline, burner I (15) is connected with gas blower I (5) by air line, liquid waste spray gun (4) is arranged at vertical constant temperature oven (63) middle part, liquid waste spray gun (4) to be exported with waste liquid tank (1) by waste drains pump (3) and is connected, horizontal constant temperature oven (64) is evenly arranged burner II (9) from front to back successively, burner II (9) is connected with surge tank (2) by gas pipeline, burner II (9) is connected with gas blower I (5) by air line, one time constant temperature incinerator (14) exhanst gas outlet is connected with cyclonic separator I (16) smoke inlet, cyclonic separator I (16) exhanst gas outlet is connected with cyclonic separator II (18) smoke inlet, cyclonic separator II (18) exhanst gas outlet is connected with secondary high-temperature incinerator (21) smoke inlet, secondary high-temperature incinerator (21) top circumferential direction is evenly arranged burner III (20), burner III (20) is connected with surge tank (2) by gas pipeline, burner III (20) is connected with gas blower I (5) by air line, cyclonic separator I (16) is connected star-shaped discharge valve I (17) and star-shaped discharge valve II (19) respectively with cyclonic separator II (18) bottom, large scale traveling-grate stoker (10) bottom is ash dropping hopper I (11), large scale traveling-grate stoker (10) side air compartment connects gas blower II (6).
Described residual neat recovering system (52) mainly comprises the high-temperature flue gas radiant cooling room (22) be made by membrane wall, the boiler evaporator (28) be made up of convection bank, the boiler economizer (34) be made up of convection bank, boiler-steam dome (26), thermal deaerator (38) and boiler steam-water pipeline (27), secondary high-temperature incinerator (21) exhanst gas outlet of high-temperature flue gas radiant cooling room (22) smoke inlet and thermal oxidative reaction system (51) be connected, high-temperature flue gas radiant cooling room (22) exhanst gas outlet is connected with boiler evaporator (28) smoke inlet, boiler evaporator (28) exhanst gas outlet respectively with boiler economizer (34) smoke inlet, boiler economizer (34) exhanst gas outlet is connected with SCR denitration device (33) smoke inlet of fume environment protection treatment system (53), SCR denitration device (33) exhanst gas outlet is connected with boiler economizer (34) smoke inlet, high-temperature flue gas radiant cooling room (22), boiler evaporator (28), boiler economizer (34), boiler-steam dome (26), thermal deaerator (38) and service pump (37) are connected by boiler steam-water pipeline (27), high-temperature flue gas radiant cooling room (22) bottom is provided with ash dropping hopper II (23), boiler evaporator (28) bottom is provided with ash dropping hopper III (29), boiler economizer (34) bottom is provided with ash dropping hopper IV (35).
Described fume environment protection treatment system (53) mainly comprises SCR denitration device (33), sack cleaner (39), deacidifying flue gas system (55), chimney (50), wherein deacidification system (55) mainly comprises deacidifying flue gas tower (45), alkali lye agitator tank (48), alkali lye pond (47), topping-up pump (46), NaOH solution circulating pump (49) forms, boiler economizer (34) exhanst gas outlet of residual neat recovering system (52) is connected with sack cleaner (39) smoke inlet, sack cleaner (39) exhanst gas outlet is connected with deacidifying flue gas tower (45) smoke inlet afterwards by induced draft fan (41), SCR denitration device (33) entrance exports with the boiler evaporator (28) of afterheat boiler system and is connected, SCR denitration device (33) outlet is connected with boiler economizer (34) entrance, SCR denitration device (33) entrance is connected with outlet, the flue be connected arranges valve I (30) respectively, valve II (32), valve III (31), during normal operation, valve I and valve II are opened, valve III is closed, when the of short duration maintenance of SCR denitration device or flue gas are up to standard without SCR denitration device NOx, valve I and valve II are closed, and valve III is opened.Deacidifying flue gas tower (45) exhanst gas outlet is connected with chimney (50) smoke inlet, and sack cleaner (39) bottom is provided with ash dropping hopper V (40); In deacidifying flue gas system (55), from deacidifying flue gas tower (45) bottom alkali lye circulatory pool (65), extract alkali lye atomization by NaOH solution circulating pump (49) pump in deacidifying flue gas tower (45), the alkali lye of atomization sprays into against flue gas flow direction, with SO in flue gas
2, HCL, SO
3 2-, CL
-the object that neutralization reaction reaches depickling is there is Deng acid.Be solid base or liquid NaOH in agitator tank (48), agitator tank (48) is connected with cleaning water, the uniform alkali lye of agitator tank (48) is connected to alkali lye pond (47) by pipeline, alkali lye pond (47) is connected with extracting tower (45) by topping-up pump (46), in deacidifying flue gas system, deacidifying flue gas tower (45) adopts micro-mist desulfurization and dedusting technology, and deacidifying flue gas tower (45) inside is also provided with sieve tray and Venturi tube.
Described solid product recovery system (54) mainly comprises water-cooled scraper conveyor I (7), water-cooled scraper conveyor II (12), water-cooled scraper conveyor III (24), twin shaft slag cooler (25), circulating cooling water tank (42), circulating cooling water pump (44).Water-cooled scraper conveyor I (7), water-cooled scraper conveyor II (12), water-cooled scraper conveyor III (24), twin shaft slag cooler (25), cooling water tank (42), cooling circulating water pump (44) are connected by circulation line (43), water-cooled scraper conveyor I (7) material inlet is connected with star-shaped discharge valve II (19) with star-shaped discharge valve I (17), water-cooled scraper conveyor I (7) material outlet is connected with constant temperature hopper (8) again, constant temperature hopper (8) is connected with large scale traveling-grate stoker (10) front portion again, the ash dropping hopper I (11) of fore portion is connected with water-cooled scraper conveyor II (12), the ash dropping hopper I (11) of rear section is connected with twin shaft slag cooler (25), twin shaft slag cooler (25) material outlet is connected with water-cooled scraper conveyor II (12), water-cooled scraper conveyor III (24) exports and twin shaft slag cooler (25) material inlet, water-cooled scraper conveyor III (24) respectively with ash dropping hopper II (23), ash dropping hopper III (29), ash dropping hopper IV (35) and ash dropping hopper V (40) are connected, water-cooled scraper conveyor II (12) tail end is provided with wrapping machine (13).
Claims (9)
1. recycling mother solution of glyphosate utilizes a system, it is characterized in that, comprise mother liquor concentrations system (36), thermal oxidative reaction system (51), residual neat recovering system (52), fume environment protection treatment system (53) and solid product recovery system (54), mother liquor concentrations system (36) is communicated with residual neat recovering system (52) with thermal oxidative reaction system (51) respectively, thermal oxidative reaction system (51) is communicated with solid product recovery system (54) with residual neat recovering system (52), residual neat recovering system (52) is communicated with solid product recovery system (54) with fume environment protection treatment system (53), fume environment protection treatment system (53) is communicated with solid product recovery system (54),
Described mother liquor concentrations system (36) mainly comprises first evaporator (56), second stage vaporizer (57), third evaporator (58), condenser (59), first step recycle pump (60), second stage recycle pump (61), third stage recycle pump (62);
Described thermal oxidative reaction system (51) mainly comprises constant temperature incinerator (14), cyclonic separator I (16), cyclonic separator II (18), secondary high-temperature incinerator (21) and a large scale traveling-grate stoker (10), one time constant temperature incinerator comprises vertical constant temperature oven (63), horizontal constant temperature oven (64), and forms a closed thermooxidizing burner hearth with large scale traveling-grate stoker (10);
Described residual neat recovering system (52) mainly comprises high-temperature flue gas radiant cooling room (22), boiler evaporator (28), boiler economizer (34), boiler-steam dome (26), thermal deaerator (38) and boiler steam-water pipeline (27);
Described fume environment protection treatment system (53) mainly comprises SCR denitration device (33), sack cleaner (39), deacidifying flue gas system (55), chimney (50);
Described solid product recovery system (54) mainly comprises water-cooled scraper conveyor I (7), water-cooled scraper conveyor II (12), water-cooled scraper conveyor III (24), twin shaft slag cooler (25), circulating cooling water tank (42), circulating cooling water pump (44).
2. a kind of recycling mother solution of glyphosate according to claim 1 utilizes system, it is characterized in that, described mother liquor concentrations system (36) adopts triple-effect evaporator, first evaporator (56), second stage vaporizer (57), third evaporator (58), condenser (59) are communicated with successively, and are furnished with first step recycle pump (60), second stage recycle pump (61), third stage recycle pump (62); Waste liquid outlet in mother liquor concentrations system (36) after mother liquor concentrations is connected with waste liquid tank (1) entrance, noncondensable gas outlet is connected with a constant temperature incinerator (14), and the sewage condensed condensed water of processing unit and low-pressure steam of anhydrating exports and is connected with the deoxygenator (38) of residual neat recovering system (52).
3. a kind of recycling mother solution of glyphosate according to claim 1 utilizes system, it is characterized in that, described thermal oxidative reaction system (51) adopts secondary to burn structure, one time constant temperature incinerator (14) comprises vertical constant temperature oven (63) and horizontal constant temperature oven (64), vertical constant temperature oven (63) is evenly arranged burner I (15) from top to bottom successively, burner I (15) is connected with surge tank (2) by gas pipeline, burner I (15) is connected with gas blower I (5) by air line, liquid waste spray gun (4) is arranged at vertical constant temperature oven (63) middle part, liquid waste spray gun (4) to be exported with waste liquid tank (1) by waste drains pump (3) and is connected, horizontal constant temperature oven (64) is evenly arranged burner II (9) from front to back successively, burner II (9) is connected with surge tank (2) by gas pipeline, burner II (9) is connected with gas blower I (5) by air line, one time constant temperature incinerator (14) exhanst gas outlet is connected with cyclonic separator I (16) smoke inlet, cyclonic separator I (16) exhanst gas outlet is connected with cyclonic separator II (18) smoke inlet, cyclonic separator II (18) exhanst gas outlet is connected with secondary high-temperature incinerator (21) smoke inlet, secondary high-temperature incinerator (21) top circumferential direction is evenly arranged burner III (20), burner III (20) is connected with surge tank (2) by gas pipeline, burner III (20) is connected with gas blower I (5) by air line, cyclonic separator I (16) is connected star-shaped discharge valve I (17) and star-shaped discharge valve II (19) respectively with cyclonic separator II (18) bottom, large scale traveling-grate stoker (10) bottom is ash dropping hopper I (11), large scale traveling-grate stoker (10) side air compartment connects gas blower II (6).
4. a kind of recycling mother solution of glyphosate according to claim 1 utilizes system, it is characterized in that, high-temperature flue gas radiant cooling room (22) smoke inlet of described residual neat recovering system (52) and secondary high-temperature incinerator (21) exhanst gas outlet of thermal oxidative reaction system (51) be connected, high-temperature flue gas radiant cooling room (22) exhanst gas outlet is connected with boiler evaporator (28) smoke inlet, boiler evaporator (28) exhanst gas outlet respectively with boiler economizer (34) smoke inlet, boiler economizer (34) exhanst gas outlet is connected with SCR denitration device (33) smoke inlet of fume environment protection treatment system (53), SCR denitration device (33) exhanst gas outlet is connected with boiler economizer (34) smoke inlet, high-temperature flue gas radiant cooling room (22), boiler evaporator (28), boiler economizer (34), boiler-steam dome (26), thermal deaerator (38) and service pump (37) are connected by boiler steam-water pipeline (27), high-temperature flue gas radiant cooling room (22) bottom is provided with ash dropping hopper II (23), boiler evaporator (28) bottom is provided with ash dropping hopper III (29), boiler economizer (34) bottom is provided with ash dropping hopper IV (35).
5. a kind of recycling mother solution of glyphosate according to claim 1 utilizes system, it is characterized in that, deacidification system (55) in described fume environment protection treatment system (53) mainly comprises deacidifying flue gas tower (45), alkali lye agitator tank (48), alkali lye pond (47), topping-up pump (46), NaOH solution circulating pump (49) forms, boiler economizer (34) exhanst gas outlet of residual neat recovering system (52) is connected with sack cleaner (39) smoke inlet, sack cleaner (39) exhanst gas outlet is connected with deacidifying flue gas tower (45) smoke inlet afterwards by induced draft fan (41), deacidifying flue gas tower (45) exhanst gas outlet is connected with chimney (50) smoke inlet, sack cleaner (39) bottom is provided with ash dropping hopper V (40),
Be solid base or liquid NaOH in described agitator tank (48), agitator tank (48) is connected with cleaning water, the uniform alkali lye of agitator tank (48) is connected to alkali lye pond (47) by pipeline, alkali lye pond (47) is connected with extracting tower (45) by topping-up pump (46), and deacidifying flue gas tower (45) inside is also provided with sieve tray and Venturi tube.
6. a kind of recycling mother solution of glyphosate according to claim 1 utilizes system, it is characterized in that, the water-cooled scraper conveyor I (7) of described solid product recovery system (54), water-cooled scraper conveyor II (12), water-cooled scraper conveyor III (24), twin shaft slag cooler (25), cooling water tank (42), cooling circulating water pump (44) are connected by circulation line (43), water-cooled scraper conveyor I (7) material inlet is connected with star-shaped discharge valve II (19) with star-shaped discharge valve I (17), water-cooled scraper conveyor I (7) material outlet is connected with constant temperature hopper (8) again, constant temperature hopper (8) is connected with large scale traveling-grate stoker (10) front portion again, the ash dropping hopper I (11) of fore portion is connected with water-cooled scraper conveyor II (12), the ash dropping hopper I (11) of rear section is connected with twin shaft slag cooler (25), twin shaft slag cooler (25) material outlet is connected with water-cooled scraper conveyor II (12), water-cooled scraper conveyor III (24) exports and twin shaft slag cooler (25) material inlet, water-cooled scraper conveyor III (24) respectively with ash dropping hopper II (23), ash dropping hopper III (29), ash dropping hopper IV (35) and ash dropping hopper V (40) are connected, water-cooled scraper conveyor II (12) tail end is provided with wrapping machine (13).
7. a kind of recycling mother solution of glyphosate according to claim 3 utilizes system, it is characterized in that, described liquid waste spray gun (4) adopts atomizing lance, and atomizing medium is saturation steam or pressurized air.
8. a kind of recycling mother solution of glyphosate according to claim 1 utilizes system, it is characterized in that, described cyclonic separator I (16) and cyclonic separator II (18) inside adopt jacket type structure, between two-layer cyclone cylinder, form a vacuum interlayer.
9. a kind of recycling mother solution of glyphosate according to claim 1 or 4 utilizes system, it is characterized in that, described described high-temperature flue gas cooling room (22) adopts membrane wall to surround; Described boiler evaporator (28) and boiler economizer (34) are made up of convection bank.
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| CN106082515A (en) * | 2016-06-27 | 2016-11-09 | 四川福思达生物技术开发有限责任公司 | A kind of incineration treatment technology of glyphosate mother solution |
| CN110330037A (en) * | 2019-07-17 | 2019-10-15 | 江苏汉凯工程技术有限公司 | The method of sodium chloride is recycled in a kind of glyphosate mother solution |
| CN111288466A (en) * | 2020-04-03 | 2020-06-16 | 河南红东方化工股份有限公司 | High-salt waste liquid incineration treatment method |
| CN112161259A (en) * | 2020-10-10 | 2021-01-01 | 镇江江南化工有限公司 | Method for reducing energy consumption in production of crude sodium pyrophosphate and directional conversion device thereof |
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| CN110330037A (en) * | 2019-07-17 | 2019-10-15 | 江苏汉凯工程技术有限公司 | The method of sodium chloride is recycled in a kind of glyphosate mother solution |
| CN111288466A (en) * | 2020-04-03 | 2020-06-16 | 河南红东方化工股份有限公司 | High-salt waste liquid incineration treatment method |
| CN112161259A (en) * | 2020-10-10 | 2021-01-01 | 镇江江南化工有限公司 | Method for reducing energy consumption in production of crude sodium pyrophosphate and directional conversion device thereof |
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