CN107674778A - It is a kind of to be used to remove chemical of air preheater hard scale and preparation method thereof - Google Patents

It is a kind of to be used to remove chemical of air preheater hard scale and preparation method thereof Download PDF

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Publication number
CN107674778A
CN107674778A CN201711051027.3A CN201711051027A CN107674778A CN 107674778 A CN107674778 A CN 107674778A CN 201711051027 A CN201711051027 A CN 201711051027A CN 107674778 A CN107674778 A CN 107674778A
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weight
parts
air preheater
chemical
hard scale
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CN107674778B (en
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陈海玲
宋伟
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Nanyang Institute of Technology
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    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/83—Mixtures of non-ionic with anionic compounds
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    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/86—Mixtures of anionic, cationic, and non-ionic compounds
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    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
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    • C11D3/0026—Low foaming or foam regulating compositions
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    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
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    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
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    • C11D3/044—Hydroxides or bases
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    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
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    • C11D3/162—Organic compounds containing Si
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    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2072—Aldehydes-ketones
    • C—CHEMISTRY; METALLURGY
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    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/28—Heterocyclic compounds containing nitrogen in the ring
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/30—Amines; Substituted amines ; Quaternized amines
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    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/32—Amides; Substituted amides
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    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
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    • C11D3/36—Organic compounds containing phosphorus
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    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3715—Polyesters or polycarbonates
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    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
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    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
    • C11D3/3776—Heterocyclic compounds, e.g. lactam
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
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    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
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    • C11D3/38—Products with no well-defined composition, e.g. natural products
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    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
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    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
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    • C11D1/146—Sulfuric acid esters
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    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
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    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
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    • C11D1/66—Non-ionic compounds
    • C11D1/78—Neutral esters of acids of phosphorus

Abstract

Be used to remove the chemical of air preheater hard scale the invention discloses a kind of, belong to cleaning agent technical field, comprising component and its content be：The parts by weight of 3 methoxy propanamine 22 25.5, the parts by weight of pentaerythritol phosphate 8.3 9.7, N, the parts by weight of N dimethyl acetamides 11.2 12.9, the parts by weight of sodium hydroxide 1.4 2.6, the parts by weight of tertiary sodium phosphate 18.8 20, the parts by weight of corrosion inhibiter 7.3 8.8, the parts by weight of remover 5.6 6.4, the parts by weight of bleeding agent 3.2 4.1, the parts by weight of surfactant 2.5 3.3, the parts by weight of antisludging agent 8.7 9.6, the parts by weight of dispersant 3.5 4.4, the parts by weight of water 45 58.Cleaning agent combination property provided by the invention is good, and cleaning performance is notable, stable performance, can form layer protective layer on air preheater surface, play the purpose of scale inhibition anti-corrosion, extend air preheater service life.

Description

It is a kind of to be used to remove chemical of air preheater hard scale and preparation method thereof
Technical field
The present invention relates to cleaning agent technical field, and in particular to it is a kind of be used for remove air preheater hard scale chemical and Its preparation method.
Background technology
Rotary regenerative air heater is an important auxiliary equipment in heat power plant boiler, carrying to reduction exhaust gas temperature, Improve the effect of heat primary air and hot Secondary Air temperature.The height of heat exchange property, boiler efficiency is directly affected, also to power plant The safe and stable operation of boiler plays vital effect.However as the implementation of denitration transformation, and the long-time of equipment Operation, especially in the environment of high-temperature high dust, air preheater easily produces dust stratification and blocking, not only increases SR, more The heat transfer performance of air preheater, the safe and stable operation of crisis air and flue system are had a strong impact on.
It is each power plant's common problem that air preheater, which blocks up grey problem, although boiler original design is fitted with soot blowing and water Flushing device, but reserved device black dirt can not be effectively cleaned, when lighting a fire again, moist black dirt, which is burnt till " brick ", makes stifled ash tighter Weight.Due to the stifled ash of air preheater, the rise of boiler exhaust gas system temperature, hot air temperature is caused to decline, air and flue system resistance rises, air-supply Positive pressure side and the increase of air draught positive pressure side both sides pressure difference, so as to increase the air leak rate of air curtain of air preheater.The stifled ash of air preheater is different from general Black dirt, especially plus SCR denitration device after, the escaping of ammonia rate rise, cause the hydrogen sulfate that strongly adherent is generated in air preheater Ammonium hard scale.
Two methods of physical cleaning and Chemical cleaning can be divided into object descaling rinsing.Physical cleaning is typically to utilize machine The method that body surface dirt is removed in the effect of tool or waterpower.Actually current physical cleaning also using the effect of heat energy, The method that the effect of the effect of electric current, ultrasonic wave and ultraviolet carries out decontamination.Physical cleaning in many cases using Dry clean, in the absence of the problem of wastewater treatment, even with the high pressure washing for washing away jet-action of water, due to discharging water In be not present difficulty in chemical agent, and be easier to processing.By contrast, pollution of the physical cleaning to environment, to people The Health cost of body is all smaller, and equipment is acted on without corrosion failure substantially in itself.Physical cleaning shortcoming is tied in cleaning During the device interior of structure complexity, its active force uniformly can not reach all sites sometimes and occur at " dead angle ".Set sometimes for Standby disintegrate is cleaned, and often needs to be equipped with corresponding power-equipment for power when providing cleaning, and it is big also to take up an area scale Carry the shortcomings that inconvenient.
Chemical cleaning is chemically reacted using chemicals or the dirt of its aqueous solution and body surface, makes it from clear Wash body surface and dissociate and dissolve the cleaning method being distributed in liquid.The chemical agent used in Process of Chemical Cleaning is then referred to as Chemical.What Chemical cleaning decontamination contaminant releasing relied on is the respond of chemicals, and many chemicals have effect strong Strong, the characteristics of being swift in response.Some chemical agents are liquid in itself, are generally all to be made into the use of aqueous solution form, due to liquid There is the characteristics of good fluidity, penetration is strong, be easily evenly distributed to all cleaning surfaces, so being adapted to the complex-shaped thing of cleaning Body, and be unlikely to produce " dead angle " of less cleaning.Closed cycle flow can be used when industrially cleaning inside large scale equipment Tube shaped, it is not necessary to equipment is disintegrated and cleaned again.Cleaning situation is can be appreciated that and controlled by the detection of convection body composition.
The shortcomings that Chemical cleaning is that chemical cleaning solution selects not at that time, to cause corrosion failure to cleaning materials body, cause Loss.Discharging of waste liquid caused by Chemical cleaning is the reason for causing environmental pollution, therefore Chemical cleaning must be equipped with wastewater treatment Device.Other chemical agent operation can damage when dealing with improperly to health, the safety of human body.
Rushed in the past using mechanical water, the floating ash in surface can only be washed away, it is impossible to thorough Dust scaling cleaning, or even make stifled ash more and more tighter Weight.Chemical cleaning is to make dirty thing dissolve or become loose using scavenger specially to be easy to come off, but conventional cleaning agent exists and removed Dirt not enough thoroughly, etching apparatus, damage air preheater the deficiencies of, therefore, develop one kind can effectively clean ammonium hydrogen sulfate hard scale, again The cleaning agent of unit safety production is not influenceed, and the progress to air preheater is effectively cleaned extremely urgent.
Publication No. CN104745337A patent discloses a kind of for removing in desulphurization system air preheater hard scale Property chemical and preparation method thereof.The neutral chemical cleaning agent by cleaning host, surfactant, bleeding agent, liquid caustic soda and Water compounding forms.The cleaning agent occurs complexing by the metasilicic acid aluminium salt and silicate scale on the air preheater surface with being touched and made With reaching the purpose of " dissolving " dirt；By osmosis and expansion, make cracked and gap inside dirty Rotating fields. The cleaning agent employs the neutral scheme of safety and environmental protection, nontoxic, and main compound cleans host easily biological-degradable, in the absence of environment Problem；The cleaning agent has quick descaling, does not corrode steelframe, do not hinder enamel heat exchange original paper, do not destroy the spies such as scale anticorrosion material Point, the heat exchange efficiency and dredging vent passages of heat transmission equipment are improved, ensure that safety, the economical operation of unit..In air preheater In Cleaning application, the cleaning agent is 98% to the clearance of hard scale, and scale removal is not thorough, and elimination effect is not ideal enough, and the cleaning agent It is not sufficiently stable, by the larger of high temperature and low temperature environment, Scavenging activity declines, and use temperature range is limited.
Publication No. CN102242028A patent discloses a kind of neutral cleaners, and described cleaning agent is by following matter The raw material composition of amount proportioning：Cleaning host 30 ~ 50%, surfactant 0.5 ~ 2.5%, bleeding agent 0.2 ~ 2.5%, cosolvent 2 ~ 8%, Alkali 15 ~ 25%, surplus are water；Described cleaning agent pH value is 7 ~ 9；Described cleaning host is polycarboxylic acid compound and/or had Machine carboxylic acid compound.Compared with prior art, the beneficial effect of the invention is mainly reflected in：The cleaning agent, which has, removes hard scale Thoroughly, metal, enamel, glass etc. are not corroded, nontoxic to human body, waste liquid be able to can simultaneously be recycled with safety dumping, be a kind of high Imitate the environment-friendly type neutral cleaners of safety；Obstinate fouling for desulphurization system GGH heat exchange elements surface, can carry out it is quick, have The cleaning of effect, cleaning frequency are 5 ~ 7 days, and cleaning performance can reach power plant's performance test appraisal standards, be contributed for energy-saving and emission-reduction. But the cleaning agent caused foam in cleaning process is more, is unfavorable for rinsing, it is impossible to scale inhibition, the effect of inhibition are played to equipment Fruit, after cleaning, hard scale accumulation rate is very fast, and the cleaning frequency is shorter, influences service life of equipment.
The content of the invention
In view of this, a kind of combination property of present invention offer is good, and cleaning performance is notable, stable performance, for for clear Chemical except air preheater hard scale and preparation method thereof.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content be：3 methoxypropyl amine 22- 25.5 parts by weight, pentaerythritol phosphate 8.3-9.7 parts by weight, DMAC N,N' dimethyl acetamide 11.2-12.9 parts by weight, hydroxide Sodium 1.4-2.6 parts by weight, tertiary sodium phosphate 18.8-20 parts by weight, corrosion inhibiter 7.3-8.8 parts by weight, remover 5.6-6.4 weight Part, bleeding agent 3.2-4.1 parts by weight, surfactant 2.5-3.3 parts by weight, antisludging agent 8.7-9.6 parts by weight, dispersant 3.5- 4.4 parts by weight, water 45-58 parts by weight.
Further, the corrosion inhibiter is the one or more in hexa, cinnamic acid, poly-aspartate.
Further, the corrosion inhibiter is hexa, cinnamic acid, poly-aspartate, and weight is than hexa-methylene four Amine：Cinnamic acid：Poly-aspartate is 2:3:5.
Further, the remover is the mixing of ethamine, TBAH and chlorination 1- octyl group -3- methylimidazoles Thing, weight compare ethamine：TBAH：Chlorination 1- octyl group -3- methylimidazoles are 3:1:6.
Further, the bleeding agent is APES or polyoxyethylene aliphatic alcohol ether.
Further, the surfactant is：Aerosol OT, sodium lignin sulfonate, N- methyl oxen Any one in sodium sulfonate.
Further, the antisludging agent is one kind in polyoxyethylene groups pyrophosphate, sodium humate, poly-epoxy succinic acid It is or a variety of.
Further, the antisludging agent be polyoxyethylene groups pyrophosphate, sodium humate, poly-epoxy succinic acid, weight ratio Polyoxyethylene groups pyrophosphate：Sodium humate：Poly-epoxy succinic acid is 2:2:6.
Further, the dispersant is 3- TSL 8330s or PVP.
Further, described a kind of preparation method for being used to remove the chemical of air preheater hard scale, it is included such as Lower step：
1）By the 3 methoxypropyl amine of 22-25.5 parts by weight, the pentaerythritol phosphate of 8.3-9.7 parts by weight and 15-20 weight The water mixing of part, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 400-500r/min, stirs 20- 30min, obtain mixture A；
2）By the DMAC N,N' dimethyl acetamide of 11.2-12.9 parts by weight, the sodium hydroxide of 1.4-2.6 parts by weight, 18.8-20 weight Part tertiary sodium phosphate mixes with the water of 30-38 parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed is 300-400r/min, 30-45min is stirred, obtains mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add The surfactant of 2.5-3.3 parts by weight, the antisludging agent of 8.7-9.6 parts by weight, the dispersant of 3.5-4.4 parts by weight, will react Kettle temperature control stirs 2-3h, obtains mixed liquor at 60-70 DEG C, speed of agitator 200-300r/min；
4）To step 3）Added in obtained mixed liquor the corrosion inhibiter of 7.3-8.8 parts by weight, 5.6-6.4 parts by weight remover, The bleeding agent of 3.2-4.1 parts by weight, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 300-400r/min, stir 8- 10h, produce target product；
5）By step 4）Obtained target product shakes 12-16h, amplitude 50mm, rotating speed 100-200rpm in bottle swingging machine, Filter, produce final product.
The beneficial effects of the invention are as follows：The present invention is using 3 methoxypropyl amine, pentaerythritol phosphate, N, N- dimethyl second Acid amides, tertiary sodium phosphate etc. are host, and it is multiple to add corrosion inhibiter, antisludging agent, remover, bleeding agent, surfactant, dispersant etc. The chemical being made for removing air preheater hard scale is closed, to air preheater inside corrosion-free, biology notable with elimination effect The advantages such as decomposability is good.
3 methoxypropyl amine is compound with pentaerythritol phosphate, can effectively dissolve iron oxide in hard scale, ferrous sulfide, The materials such as ammonium hydrogen sulfate.DMAC N,N' dimethyl acetamide and tertiary sodium phosphate, sodium hydroxide and 3 methoxypropyl amine and pentaerythrite phosphorus Acid esters coordinates, and dissolves, and discharge gas the calcium in hard scale, magnesium compound, and sodium hydroxide will adjust the PH of cleaning agent, enhancing The solvability of hard scale, and do not corrode air preheater.
Molecular orientation in the corrosion inhibiter such as hexa, cinnamic acid, poly-aspartate is arranged in metal surface, is formed One layer of hydrophobic membrane, isolation hydrone contact with metal surface, and so as to play inhibition, anti-rust action, biological decomposition performance is good.
Remover acts synergistically with dispersant, is peeled off beneficial to hard scale from air preheater surface.Gold in bleeding agent chelant hard scale Belong to ion, strengthen hard scale dissolving power, reaction is advantageous to molten dirty direction and carry out.Surfactant plays wetting, emulsification, Beneficial to the haptoreaction of cleaning agent and hard scale, while the stability of cleaning agent is improved, strengthen high-low temperature resistant ability.Polyoxyethylene groups The antisludging agents such as pyrophosphate, sodium humate, poly-epoxy succinic acid can be in disperse water slightly solubility inorganic salts, inhibit or interfere with difficulty Precipitation, fouling function of the soluble inorganic salt in metal surface, have it is excellent shield, be impervious, rustless property.Dispersant makes each group / there is preferable compatibility, make system more uniform, it is gentle to reduce the aqueous solution of the cleaning agent foam in cleaning process The generation of bubble.
The  present invention is organically combined by various materials, and playing chemical made from the cooperative effect of each component has Efficiently significant hard scale Scavenging activity, corrosion-free and excellent rustless property, foam height is in below 3.5mm, antifoam performance Preferably, high/low temperature stability is excellent.Green pollution-free of the present invention, Biodegradable is good, does not corrode air preheater and periphery Equipment；Hard scale removal effect is notable, can quickly remove, and forms a protective layer on air preheater surface, delays hard scale again The speed of secondary accumulation, inner wall oxide corrosion is prevented, extend air preheater service life.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below to the skill of the embodiment of the present invention Art scheme is clearly and completely described.Obviously, described embodiment is the part of the embodiment of the present invention, rather than entirely The embodiment in portion.Based on described embodiments of the invention, every other implementation that those of ordinary skill in the art are obtained Example, belongs to the scope of protection of the invention.
Embodiment one
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content be：The weight of 3 methoxypropyl amine 22 Measure part, the parts by weight of pentaerythritol phosphate 8.3, the parts by weight of DMAC N,N' dimethyl acetamide 11.2, the parts by weight of sodium hydroxide 1.4, phosphorus The sour parts by weight of trisodium 18.8, the parts by weight of hexa 7.3, the parts by weight of remover 5.6, the weight of APES 3.2 Measure part, the parts by weight of Aerosol OT 2.5, the parts by weight of polyoxyethylene groups pyrophosphate 8.7,3- aminopropyl front threes The parts by weight of TMOS 3.5, the parts by weight of water 45.
The remover be ethamine, TBAH and chlorination 1- octyl group -3- methylimidazoles mixture, weight ratio Ethamine：TBAH：Chlorination 1- octyl group -3- methylimidazoles are 3:1:6.
This is used for the preparation method for removing the chemical of air preheater hard scale, and it is comprised the following steps：
1）The pentaerythritol phosphate of the 3 methoxypropyl amine of 22 parts by weight, 8.3 parts by weight is mixed with the water of 15 parts by weight, put In magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 400r/min, 20min is stirred, obtains mixture A；
2）By the DMAC N,N' dimethyl acetamide of 11.2 parts by weight, the sodium hydroxide of 1.4 parts by weight, 18.8 parts by weight of phosphoric acid trisodiums with The water mixing of 30 parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 300r/min, and stirring 30min, obtain mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add 2.5 The Aerosol OT of parts by weight, the polyoxyethylene groups pyrophosphate of 8.7 parts by weight, the 3- amino of 3.5 parts by weight Propyl trimethoxy silicane, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 200r/min, stir 2h, mixed Liquid；
4）To step 3）Added in obtained mixed liquor the hexas of 7.3 parts by weight, 6.4 parts by weight remover, The APES of 3.2-4.1 parts by weight, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 300r/min, 8h is stirred, produces target product；
5）By step 4）Obtained target product shakes 12h, amplitude 50mm, rotating speed 100rpm in bottle swingging machine, filters, i.e., Obtain final product.
Embodiment two
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content be：The weight of 3 methoxypropyl amine 23 Measure part, the parts by weight of pentaerythritol phosphate 8.5, the parts by weight of DMAC N,N' dimethyl acetamide 11.4, the parts by weight of sodium hydroxide 1.5, phosphorus The sour parts by weight of trisodium 18.9, the parts by weight of cinnamic acid 7.5, the parts by weight of remover 5.8, the parts by weight of APES 3.4, wood The parts by weight of quality sodium sulfonate 2.7, the parts by weight of sodium humate 8.9, the parts by weight of 3- TSL 8330s 3.8, the weight of water 47 Measure part.
The remover be ethamine, TBAH and chlorination 1- octyl group -3- methylimidazoles mixture, weight ratio Ethamine：TBAH：Chlorination 1- octyl group -3- methylimidazoles are 3:1:6.
This is used for the preparation method for removing the chemical of air preheater hard scale, and it is comprised the following steps：
1）The pentaerythritol phosphate of the 3 methoxypropyl amine of 23 parts by weight, 8.5 parts by weight is mixed with the water of 16 parts by weight, put In magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 400r/min, 22min is stirred, obtains mixture A；
2）By the DMAC N,N' dimethyl acetamide of 11.4 parts by weight, the sodium hydroxide of 1.5 parts by weight, 18.9 parts by weight of phosphoric acid trisodiums with The water mixing of 31 parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 300r/min, and stirring 35min, obtain mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add 2.7 The sodium lignin sulfonate of parts by weight, the sodium humate of 8.9 parts by weight, 3.8 parts by weight 3- TSL 8330s, will be anti- Kettle temperature control is answered at 60-70 DEG C, speed of agitator 250r/min, 2h is stirred, obtains mixed liquor 1；
4）To step 3）The cinnamic acid of 7.5 parts by weight, the remover of 5.8 parts by weight, 3.4 weight are added in obtained mixed liquor 1 The APES of part, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 350r/min, stir 8.5h, i.e., Obtain target product；
5）By step 4）Obtained target product shakes 12.5h, amplitude 50mm, rotating speed 120rpm in bottle swingging machine, filters, Produce final product.
Embodiment three
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content be：3 methoxypropyl amine 25.2 Parts by weight, the parts by weight of pentaerythritol phosphate 9.5, the parts by weight of DMAC N,N' dimethyl acetamide 12.7, the parts by weight of sodium hydroxide 2.5, The parts by weight of tertiary sodium phosphate 19.8, the parts by weight of poly-aspartate 8.5, the parts by weight of remover 6.3, the weight of polyoxyethylene aliphatic alcohol ether 4 Part, the parts by weight of N methyl taurine sodium 3.2, the parts by weight of poly-epoxy succinic acid 9.5, the parts by weight of PVP 4.2, water 57 parts by weight.
The remover be ethamine, TBAH and chlorination 1- octyl group -3- methylimidazoles mixture, weight ratio Ethamine：TBAH：The proportion of chlorination 1- octyl group -3- methylimidazoles is 3:1:6.
This is used for the preparation method for removing the chemical of air preheater hard scale, and it is comprised the following steps：
1）The pentaerythritol phosphate of the 3 methoxypropyl amine of 25.2 parts by weight, 9.5 parts by weight is mixed with the water of 20 parts by weight, It is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 400r/min, stirs 20min, obtain mixture A；
2）By the DMAC N,N' dimethyl acetamide of 12.7 parts by weight, the sodium hydroxide of 2.5 parts by weight, 19.8 parts by weight of phosphoric acid trisodiums with The water mixing of 37 parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 300r/min, and stirring 32min, obtain mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add 3.2 weights The N methyl taurine sodium of part, the poly-epoxy succinic acid of 9.5 parts by weight, the PVP of 4.2 parts by weight are measured, will be anti- Kettle temperature control is answered at 60-70 DEG C, speed of agitator 200/min, 2h is stirred, obtains mixed liquor；
4）To step 3）The poly-aspartate of 8.5 parts by weight, the remover of 6.3 parts by weight, 4 weight are added in obtained mixed liquor The polyoxyethylene aliphatic alcohol ether of part, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 300r/min, stir 8.5h, i.e., Obtain target product；
5）By step 4）Obtained target product shakes 12.5h, amplitude 50mm, rotating speed 100rpm in bottle swingging machine, filters, Produce final product.
Example IV
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content with embodiment five.
This is used for the preparation method for removing the chemical of air preheater hard scale, and it is comprised the following steps：
1）The pentaerythritol phosphate of the 3 methoxypropyl amine of 25.2 parts by weight, 9.5 parts by weight is mixed with the water of 20 parts by weight, It is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 400r/min, stirs 22min, obtain mixture A；
2）By the DMAC N,N' dimethyl acetamide of 12.7 parts by weight, the sodium hydroxide of 2.5 parts by weight, 19.8 parts by weight of phosphoric acid trisodiums with The water mixing of 37 parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 300r/min, and stirring 35min, obtain mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add 3.2 weights The N methyl taurine sodium of part, the poly-epoxy succinic acid of 9.5 parts by weight, the PVP of 4.2 parts by weight are measured, will be anti- Kettle temperature control is answered at 60-70 DEG C, speed of agitator 250/min, 2h is stirred, obtains mixed liquor；
4）To step 3）The poly-aspartate of 8.5 parts by weight, the remover of 6.3 parts by weight, 4 weight are added in obtained mixed liquor The polyoxyethylene aliphatic alcohol ether of part, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 300r/min, stir 8.5h, i.e., Can.
Embodiment five
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content be：3 methoxypropyl amine 24.8 Parts by weight, the parts by weight of pentaerythritol phosphate 9, the parts by weight of DMAC N,N' dimethyl acetamide 12.2, the parts by weight of sodium hydroxide 2.2, phosphorus The sour parts by weight of trisodium 19.5, the parts by weight of corrosion inhibiter 8.3, the parts by weight of remover 6.1, the parts by weight of APES 3.9, amber The parts by weight of amber acid di-isooctyl sodium sulfonate 3, the parts by weight of antisludging agent 9.2, the parts by weight of 3- TSL 8330s 4.2, water 55 parts by weight.
The corrosion inhibiter is hexa, cinnamic acid, poly-aspartate, the hexa：Cinnamic acid：It is poly- The proportion of aspartic acid is 2:3:5.
The remover be ethamine, TBAH and chlorination 1- octyl group -3- methylimidazoles mixture, weight ratio Ethamine：TBAH：Chlorination 1- octyl group -3- methylimidazoles are 3:1:6.
The antisludging agent is polyoxyethylene groups pyrophosphate, sodium humate, poly-epoxy succinic acid, and weight compares polyoxyethylene groups Pyrophosphate：Sodium humate：Poly-epoxy succinic acid is 2:2:6.
This is used for the preparation method for removing the chemical of air preheater hard scale, and it is comprised the following steps：
1）The pentaerythritol phosphate of the 3 methoxypropyl amine of 24.8 parts by weight, 9 parts by weight is mixed with the water of 19 parts by weight, put In magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 450r/min, 30min is stirred, obtains mixture A；
2）By the DMAC N,N' dimethyl acetamide of 12.2 parts by weight, the sodium hydroxide of 2.2 parts by weight, 19.5 parts by weight of phosphoric acid trisodiums with The water mixing of 36 parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 350r/min, and stirring 42min, obtain mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add 3 weights Measure the Aerosol OT of part, the antisludging agent of 9.2 parts by weight, the 3- aminopropyl trimethoxy silicon of 4.2 parts by weight Alkane, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 250r/min, stir 3h, obtain mixed liquor；
4）To step 3）The corrosion inhibiter of 8.3 parts by weight, the remover of 6.1 parts by weight, 3.9 parts by weight are added in obtained mixed liquor APES, by temperature of reaction kettle control at 60-70 DEG C, speed of agitator 350r/min, stir 9.5h, produce Target product；
5）By step 4）Obtained target product shakes 16h, amplitude 50mm, rotating speed 180rpm in bottle swingging machine, filters, i.e., Obtain final product.
Embodiment six
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content with embodiment five,
But unlike embodiment five, for the corrosion inhibiter that the embodiment uses for hexa, antisludging agent is polycyclic oxygen amber Amber acid.
This is used for the preparation method for removing the chemical of air preheater hard scale, with embodiment five.
Embodiment seven
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content be：3 methoxypropyl amine 22.2 Parts by weight, the parts by weight of pentaerythritol phosphate 8.1, the parts by weight of DMAC N,N' dimethyl acetamide 11.3, the parts by weight of sodium hydroxide 1.4, The parts by weight of tertiary sodium phosphate 18.8, the parts by weight of corrosion inhibiter 7.4, the parts by weight of remover 5.6, the parts by weight of polyoxyethylene aliphatic alcohol ether 3.3, The parts by weight of sodium lignin sulfonate 2.5, the parts by weight of antisludging agent 8.8, the parts by weight of PVP 3.5, the parts by weight of water 46.
The corrosion inhibiter is hexa, cinnamic acid, poly-aspartate, and weight compares hexa：Cinnamic acid： Poly-aspartate is 2:3:5.
The remover be ethamine, TBAH and chlorination 1- octyl group -3- methylimidazoles mixture, weight ratio Ethamine：TBAH：Chlorination 1- octyl group -3- methylimidazoles are 3:1:6.
The antisludging agent is polyoxyethylene groups pyrophosphate, sodium humate, poly-epoxy succinic acid, and weight compares polyoxyethylene groups Pyrophosphate：Sodium humate：Poly-epoxy succinic acid is 2:2:6.
This is used for the preparation method for removing the chemical of air preheater hard scale, and it is comprised the following steps：
1）The pentaerythritol phosphate of the 3 methoxypropyl amine of 22.2 parts by weight, 8.1 parts by weight is mixed with the water of 15 parts by weight, It is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 400r/min, stirs 20min, obtain mixture A；
2）By the DMAC N,N' dimethyl acetamide of 11.3 parts by weight, the sodium hydroxide of 1.4 parts by weight, 18.8 parts by weight of phosphoric acid trisodiums with The water mixing of 31 parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 300r/min, and stirring 35min, obtain mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add 2.5 The sodium lignin sulfonate of parts by weight, the antisludging agent of 8.8 parts by weight, the PVP of 3.5 parts by weight, will react kettle temperature Degree control stirs 2.5h, obtains mixed liquor at 60-70 DEG C, speed of agitator 200r/min；
4）To step 3）The corrosion inhibiter of 7.4 parts by weight, the remover of 5.6 parts by weight, 3.3 parts by weight are added in obtained mixed liquor Polyoxyethylene aliphatic alcohol ether, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 300r/min, stir 9h, produce target Product；
5）By step 4）Obtained target product shakes 13h, amplitude 50mm, rotating speed 100rpm in bottle swingging machine, filters, i.e., Obtain final product.
Embodiment eight
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content be：3 methoxypropyl amine 25.5 Parts by weight, the parts by weight of pentaerythritol phosphate 9.7, the parts by weight of DMAC N,N' dimethyl acetamide 12.9, the parts by weight of sodium hydroxide 2.6, The parts by weight of tertiary sodium phosphate 20, the parts by weight of corrosion inhibiter 8.8, the parts by weight of remover 6.4, the parts by weight of polyoxyethylene aliphatic alcohol ether 4.1, N- The parts by weight of N-methyltaurine sodium 3.3, the parts by weight of antisludging agent 9.6, the parts by weight of PVP 4.4, the parts by weight of water 58.
The corrosion inhibiter is hexa, cinnamic acid, poly-aspartate, and weight compares hexa：Cinnamic acid： Poly-aspartate is 2:3:5.
The remover be ethamine, TBAH and chlorination 1- octyl group -3- methylimidazoles mixture, weight ratio Ethamine：TBAH：Chlorination 1- octyl group -3- methylimidazoles are 3:1:6.
The antisludging agent is polyoxyethylene groups pyrophosphate, sodium humate, poly-epoxy succinic acid, and weight compares polyoxyethylene groups Pyrophosphate：Sodium humate：Poly-epoxy succinic acid is 2:2:6.
This is used for the preparation method for removing the chemical of air preheater hard scale, and it is comprised the following steps：
1）The pentaerythritol phosphate of the 3 methoxypropyl amine of 25.5 parts by weight, 9.7 parts by weight is mixed with the water of 20 parts by weight, It is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 500r/min, stirs 30min, obtain mixture A；
2）By the DMAC N,N' dimethyl acetamide of 12.9 parts by weight, the sodium hydroxide of 2.6 parts by weight, 20 parts by weight of phosphoric acid trisodiums and 38 The water mixing of parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 400r/min, stirs 45min, Obtain mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add 3.3 The N methyl taurine sodium of parts by weight, the antisludging agent of 9.6 parts by weight, the PVP of 4.4 parts by weight, by reactor Temperature control stirs 3h, obtains mixed liquor at 60-70 DEG C, speed of agitator 300r/min；
4）To step 3）The corrosion inhibiter of 8.8 parts by weight, the remover of 6.4 parts by weight, 4.1 parts by weight are added in obtained mixed liquor Polyoxyethylene aliphatic alcohol ether, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 400r/min, stir 10h, produce mesh Mark product；
5）By step 4）Obtained target product shakes 16h, amplitude 50mm, rotating speed 200rpm in bottle swingging machine, filters, i.e., Obtain final product.
Comparative example one
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content be：The weight of 3 methoxypropyl amine 23 Measure part, the parts by weight of pentaerythritol phosphate 8.5, the parts by weight of sodium hydroxide 1.5, the parts by weight of tertiary sodium phosphate 18.9, the weight of cinnamic acid 7.5 Measure part, the parts by weight of remover 5.8, the parts by weight of APES 3.4, the parts by weight of sodium humate 8.9,3- aminopropyls three The parts by weight of methoxy silane 3.8, the parts by weight of water 47.
The remover be ethamine, TBAH and chlorination 1- octyl group -3- methylimidazoles mixture, weight ratio Ethamine：TBAH：Chlorination 1- octyl group -3- methylimidazoles are 3:1:6.
This is used for the preparation method for removing the chemical of air preheater hard scale, and it is comprised the following steps：
1）The pentaerythritol phosphate of the 3 methoxypropyl amine of 23 parts by weight, 8.5 parts by weight is mixed with the water of 16 parts by weight, put In magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 400r/min, 22min is stirred, obtains mixture A；
2）The sodium hydroxide of 1.5 parts by weight, 18.9 parts by weight of phosphoric acid trisodiums are mixed with the water of 31 parts by weight, are placed in magnetic agitation In device, under conditions of 20 DEG C -25 DEG C, rotating speed 300r/min, 35min is stirred, obtains mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add 8.9 The sodium humate of parts by weight, 3.8 parts by weight 3- TSL 8330s, temperature of reaction kettle is controlled at 60-70 DEG C, stirred Mix rotating speed is 250r/min, stirs 2h, obtains mixed liquor；
4）To step 3）The cinnamic acid of 7.5 parts by weight, the remover of 5.8 parts by weight, 3.4 parts by weight are added in obtained mixed liquor APES, by temperature of reaction kettle control at 60-70 DEG C, speed of agitator 350r/min, stir 8.5h, produce Target product；
5）By step 4）Obtained target product shakes 12.5h, amplitude 50mm, rotating speed 120rpm in bottle swingging machine, filters, Produce final product.
Comparative example two
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content be：3 methoxypropyl amine 25.2 Parts by weight, the parts by weight of pentaerythritol phosphate 9.5, the parts by weight of DMAC N,N' dimethyl acetamide 12.7, the parts by weight of sodium hydroxide 2.5, The parts by weight of tertiary sodium phosphate 19.8, the parts by weight of remover 6.3, the parts by weight of polyoxyethylene aliphatic alcohol ether 4, N methyl taurine sodium 3.2 Parts by weight, the parts by weight of poly-epoxy succinic acid 9.5, the parts by weight of PVP 4.2, the parts by weight of water 57.
The remover be ethamine, TBAH and chlorination 1- octyl group -3- methylimidazoles mixture, weight ratio Ethamine：TBAH：Chlorination 1- octyl group -3- methylimidazoles are 3:1:6.
This is used for the preparation method for removing the chemical of air preheater hard scale, and it is comprised the following steps：
1）The pentaerythritol phosphate of the 3 methoxypropyl amine of 25.2 parts by weight, 9.5 parts by weight is mixed with the water of 20 parts by weight, It is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 400r/min, stirs 20min, obtain mixture A；
2）By the DMAC N,N' dimethyl acetamide of 12.7 parts by weight, the sodium hydroxide of 2.5 parts by weight, 19.8 parts by weight of phosphoric acid trisodiums with The water mixing of 37 parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 300r/min, and stirring 32min, obtain mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add 3.2 weights The N methyl taurine sodium of part, the poly-epoxy succinic acid of 9.5 parts by weight, the PVP of 4.2 parts by weight are measured, will be anti- Kettle temperature control is answered at 60-70 DEG C, speed of agitator 200/min, 2h is stirred, obtains mixed liquor；
4）To step 3）Remover, the polyoxyethylene aliphatic alcohol ether of 4 parts by weight of 6.3 parts by weight are added in obtained mixed liquor, Temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 300r/min, 8.5h is stirred, produces target product；
5）By step 4）Obtained target product shakes 12.5h, amplitude 50mm, rotating speed 100rpm in bottle swingging machine, filters, Produce final product.
Comparative example three
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content be：3 methoxypropyl amine 24.8 Parts by weight, the parts by weight of pentaerythritol phosphate 9, the parts by weight of DMAC N,N' dimethyl acetamide 12.2, the parts by weight of sodium hydroxide 2.2, phosphorus The sour parts by weight of trisodium 19.5, the parts by weight of corrosion inhibiter 8.3, the parts by weight of APES 3.9, butanedioic acid di-isooctyl sulfonic acid The parts by weight of sodium 3, the parts by weight of antisludging agent 9.2, the parts by weight of 3- TSL 8330s 4.2, the parts by weight of water 55.
The corrosion inhibiter is hexa, cinnamic acid, poly-aspartate, and weight compares hexa：Cinnamic acid： Poly-aspartate is 2:3:5.
The antisludging agent is polyoxyethylene groups pyrophosphate, sodium humate, poly-epoxy succinic acid, and weight compares polyoxyethylene groups Pyrophosphate：Sodium humate：Poly-epoxy succinic acid is 2:2:6.
This is used for the preparation method for removing the chemical of air preheater hard scale, and it is comprised the following steps：
1）The pentaerythritol phosphate of the 3 methoxypropyl amine of 24.8 parts by weight, 9 parts by weight is mixed with the water of 19 parts by weight, put In magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 450r/min, 30min is stirred, obtains mixture A；
2）By the DMAC N,N' dimethyl acetamide of 12.2 parts by weight, the sodium hydroxide of 2.2 parts by weight, 19.5 parts by weight of phosphoric acid trisodiums with The water mixing of 36 parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 350r/min, and stirring 42min, obtain mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add 3 weights Measure the Aerosol OT of part, the antisludging agent of 9.2 parts by weight, the 3- aminopropyl trimethoxy silicon of 4.2 parts by weight Alkane, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 250r/min, stir 3h, obtain mixed liquor；
4）To step 3）Corrosion inhibiter, the alkylphenol-polyethenoxy of 3.9 parts by weight of 8.3 parts by weight are added in obtained mixed liquor Ether, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 350r/min, stir 9.5h, produce target product；
5）By step 4）Obtained target product shakes 16h, amplitude 50mm, rotating speed 180rpm in bottle swingging machine, filters, i.e., Obtain final product.
Comparative example four
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content be：3 methoxypropyl amine 22.2 Parts by weight, the parts by weight of pentaerythritol phosphate 8.1, the parts by weight of DMAC N,N' dimethyl acetamide 11.3, the parts by weight of sodium hydroxide 1.4, The parts by weight of tertiary sodium phosphate 18.8, the parts by weight of corrosion inhibiter 7.4, the parts by weight of remover 5.6, the parts by weight of sodium lignin sulfonate 2.5, scale inhibition The parts by weight of agent 8.8, the parts by weight of water 46.
The corrosion inhibiter is hexa, cinnamic acid, poly-aspartate, and weight compares hexa：Cinnamic acid： Poly-aspartate is 2:3:5.
The remover be ethamine, TBAH and chlorination 1- octyl group -3- methylimidazoles mixture, weight ratio Ethamine：TBAH：Chlorination 1- octyl group -3- methylimidazoles are 3:1:6.
The antisludging agent is polyoxyethylene groups pyrophosphate, sodium humate, poly-epoxy succinic acid, and weight compares polyoxyethylene groups Pyrophosphate：Sodium humate：Poly-epoxy succinic acid is 2:2:6.
This is used for the preparation method for removing the chemical of air preheater hard scale, and it is comprised the following steps：
1）The pentaerythritol phosphate of the 3 methoxypropyl amine of 22.2 parts by weight, 8.1 parts by weight is mixed with the water of 15 parts by weight, It is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 400r/min, stirs 20min, obtain mixture A；
2）By the DMAC N,N' dimethyl acetamide of 11.3 parts by weight, the sodium hydroxide of 1.4 parts by weight, 18.8 parts by weight of phosphoric acid trisodiums with The water mixing of 31 parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 300r/min, and stirring 35min, obtain mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add 2.5 The antisludging agent of the sodium lignin sulfonate of parts by weight, 8.8 parts by weight, by temperature of reaction kettle control at 60-70 DEG C, speed of agitator is 200r/min, 2.5h is stirred, obtains mixed liquor；
4）To step 3）Corrosion inhibiter, the remover of 5.6 parts by weight of 7.4 parts by weight are added in obtained mixed liquor, by reactor Temperature control stirs 9h, produces target product at 60-70 DEG C, speed of agitator 300r/min；
5）By step 4）Obtained target product shakes 13h, amplitude 50mm, rotating speed 100rpm in bottle swingging machine, filters, i.e., Obtain final product.
Comparative example five
It is a kind of to be used to remove the chemical of air preheater hard scale, comprising component and its content be：3 methoxypropyl amine 25.5 Parts by weight, the parts by weight of pentaerythritol phosphate 9.7, the parts by weight of DMAC N,N' dimethyl acetamide 12.9, the parts by weight of sodium hydroxide 2.6, The parts by weight of tertiary sodium phosphate 20, the parts by weight of corrosion inhibiter 8.8, the parts by weight of remover 6.4, the parts by weight of polyoxyethylene aliphatic alcohol ether 4.1, N- The parts by weight of N-methyltaurine sodium 3.3, the parts by weight of PVP 4.4, the parts by weight of water 58.
The corrosion inhibiter is hexa, cinnamic acid, poly-aspartate, and weight compares hexa：Cinnamic acid： The proportion of poly-aspartate is 2:3:5.
The remover be ethamine, TBAH and chlorination 1- octyl group -3- methylimidazoles mixture, weight ratio Ethamine：TBAH：The proportion of chlorination 1- octyl group -3- methylimidazoles is 3:1:6.
This is used for the preparation method for removing the chemical of air preheater hard scale, and it is comprised the following steps：
1）The pentaerythritol phosphate of the 3 methoxypropyl amine of 25.5 parts by weight, 9.7 parts by weight is mixed with the water of 20 parts by weight, It is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 500r/min, stirs 30min, obtain mixture A；
2）By the DMAC N,N' dimethyl acetamide of 12.9 parts by weight, the sodium hydroxide of 2.6 parts by weight, 20 parts by weight of phosphoric acid trisodiums and 38 The water mixing of parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 400r/min, stirs 45min, Obtain mixture B；
3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add 3.3 N methyl taurine sodium, the PVP of 4.4 parts by weight of parts by weight, temperature of reaction kettle is controlled at 60-70 DEG C, Speed of agitator is 300r/min, stirs 3h, obtains mixed liquor；
4）To step 3）The corrosion inhibiter of 8.8 parts by weight, the remover of 6.4 parts by weight, 4.1 parts by weight are added in obtained mixed liquor Polyoxyethylene aliphatic alcohol ether, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 400r/min, stir 10h, produce mesh Mark product；
5）By step 4）Obtained target product shakes 16h, amplitude 50mm, rotating speed 200rpm in bottle swingging machine, filters, i.e., Obtain final product.
Performance test：
1）Hard scale clearance is tested
The hard scale of phase homogenous quantities is taken, is weighed, is recorded as W1.Hard scale is placed in and filled in the beaker that 100mL concentration is 3% cleaning agent, After soaking 10min, then at the uniform velocity vibrate 10min.Whether observation hard scale is completely dissolved, if undissolved complete, take out hard scale, drying, claims Weight, is recorded as W2.Cleaning agent clearance following formula（1）It is determined that：
Clearance=(W1-W2)/W1×100% （1）
In formula：W1The quality of-immersion hard scale, g；
W2The quality of-immersion hard scale, g.
2）Rate of corrosion is tested
Erosion test uses full dip process, and full dip process is that metal testing plate is immersed in concentration entirely in the 40% cleaning agent aqueous solution.With gold Belong to the weightless change with surface color of test piece to evaluate cleaning agent corrosivity energy.Take test piece of the same race respectively in analysis day Weigh to obtain P1 on flat.Then it is individually placed in test tube.Cleaning agent is preheated to 40 DEG C in thermostatic drying chamber to pour into test tube, And liquid level is higher than test piece top about 10mm, then it is capped constant temperature at 45 DEG C and places 6h.After experiment expires, test piece is taken out through distillation Washes of absolute alcohol is used after water rinsing again 2 times, immediately hot blast drying.With the test piece comparison check outward appearance for newly polishing cleaned, then The secondary P2 that weighs to obtain.Cleaning agent rate of corrosion following formula（2）It is determined that：
Rate of corrosion=(P1-P2)/P1×100% （2）
In formula：P1The quality of-immersion test piece, g；
P2The quality of-immersion test piece, g.
3）Rust-preventing characteristic is tested
The metal testing plate polished and cleaned is taken, divides equally in every test piece and delimit 4 grids.Cleaning is dipped with round end glass bar Agent, instill in 4 grids, dripped per lattice 1 exactly, when just dripping, often drip diameter about 4-5mm.Test piece is put into lower end water is housed Drier dividing plate on, under the conditions of 35 DEG C ± 2 DEG C are placed in after capping constant temperature place.After experiment periods 30h is full, test piece observation is taken out, Check that there is non-corroding in region under drop.
4）Antifoam performance is tested
The detergent solution that concentration is 3%, which is poured into graduated cylinder, makes liquid level be done away from tube plug lower surface 70mm, Gai Sai in 30 DEG C of constant temperature Place 10min in dry case to take out, fluctuate 1min immediately, and the distance to fluctuate is about 0.33m, frequency about 100-110 After secondary/min. shakes, tube plug is opened, the graduated cylinder for containing test solution is stood into 10min, lather collapse situation is observed, writes down residual Foam height.
5）High/low temperature stability test
High temperature is tested：Take 50mL chemicals to be placed in 50mL tool plug graduated cylinders, inserted after jumping a queue in 90 DEG C of water-baths, make the water surface Do not cross at graduated cylinder 30mL scales.Graduated cylinder is taken out after 8h, is reexamined after it is cooled to room temperature.
Low temperature test：Take 50mL chemicals to be placed in 50mL tool plug graduated cylinders, be put in low temperature（-20℃）Kept in case 2h, graduated cylinder is taken out, after test solution is returned to room temperature and keeps 1h, test solution is toppled over 5 times, observed.
The Measurement results such as table 1 of embodiment one to eight and comparative example one to five：
The chemical the performance test results of the embodiment of table 1 and comparative example
Hard scale clearance（%） Rate of corrosion（%） Rust-preventing characteristic（Rust area） Foam height（mm） High-temperature stability Low-temperature stability
Embodiment one 100 0 0 3.4 It is transparent, no precipitate It is transparent, no precipitate
Embodiment two 100 0 0 3.2 It is transparent, no precipitate It is transparent, no precipitate
Embodiment three 100 0 0 3.2 It is transparent, no precipitate It is transparent, no precipitate
Example IV 100 0 0 3.4 It is transparent, no precipitate It is transparent, no precipitate
Embodiment five 100 0 0 2.6 It is transparent, no precipitate It is transparent, no precipitate
Embodiment six 100 0 0 3.0 It is transparent, no precipitate It is transparent, no precipitate
Embodiment seven 100 0 0 2.8 It is transparent, no precipitate It is transparent, no precipitate
Embodiment eight 100 0 0 2.9 It is transparent, no precipitate It is transparent, no precipitate
Comparative example one 94.2 6.3 2 4.3 Muddiness, there is precipitate Muddiness, there is precipitate
Comparative example two 95.3 6.7 1 4.0 Muddiness, there is precipitate Muddiness, there is precipitate
Comparative example three 94.7 5.6 1 4.2 Muddiness, there is precipitate Muddiness, there is precipitate
Comparative example four 95.6 5.5 1 4.2 Muddiness, there is precipitate Muddiness, there is precipitate
Comparative example five 95.8 5.3 2 4.1 Muddiness, there is precipitate Muddiness, there is precipitate
As can be seen from Table 1：1）Embodiment one to eight shows good combination property：Removed with efficient significant hard scale Ability, corrosion-free and excellent rustless property, for foam height in below 3.5mm, antifoam performance is preferable, high/low temperature stability It is excellent.2）Embodiment one to four and embodiment six are a kind of single material using corrosion inhibiter and antisludging agent, embodiment five, 7th, eight, use the mixture of corrosion inhibiter and antisludging agent for three kinds of materials, the chemical combination property ratio of embodiment five, seven, eight Embodiment one to four and embodiment six are good；For example IV compared with embodiment three, material composition is identical with content, preparation method Technical parameter is different, and the performance of embodiment three is better than example IV.3）Comparative example one lacks N, N- diformazans compared with embodiment two Yl acetamide and surfactant；Comparative example two lacks corrosion inhibiter compared with embodiment three；Comparative example three and the phase of embodiment five Than lacking remover；Comparative example four lacks bleeding agent and dispersant compared with embodiment seven；Comparative example five and the phase of embodiment eight Than, lack scale inhibition and；The performance of the chemical of comparative example one to five is poorer than embodiment one to eight.Illustrate be between each raw material It is complementary, lack any raw material, the performance of chemical will be decreased obviously.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, this area is common Other modifications or equivalent substitution that technical staff is made to technical scheme, without departing from technical solution of the present invention Spirit and scope, all should cover among scope of the presently claimed invention.

Claims (10)

  1. A kind of 1. chemical for being used to remove air preheater hard scale, it is characterised in that：Comprising component and its content be：3- first Epoxide propylamine 22-25.5 parts by weight, pentaerythritol phosphate 8.3-9.7 parts by weight, DMAC N,N' dimethyl acetamide 11.2-12.9 weights Measure part, sodium hydroxide 1.4-2.6 parts by weight, tertiary sodium phosphate 18.8-20 parts by weight, corrosion inhibiter 7.3-8.8 parts by weight, remover 5.6-6.4 parts by weight, bleeding agent 3.2-4.1 parts by weight, surfactant 2.5-3.3 parts by weight, antisludging agent 8.7-9.6 weight Part, dispersant 3.5-4.4 parts by weight, water 45-58 parts by weight.
  2. A kind of 2. chemical for being used to remove air preheater hard scale as claimed in claim 1, it is characterised in that：The inhibition Agent is the one or more in hexa, cinnamic acid, poly-aspartate.
  3. A kind of 3. chemical for being used to remove air preheater hard scale as claimed in claim 2, it is characterised in that：The inhibition Agent is hexa, cinnamic acid, poly-aspartate, and weight compares hexa：Cinnamic acid：Poly-aspartate is 2:3: 5。
  4. A kind of 4. chemical for being used to remove air preheater hard scale as claimed in claim 1, it is characterised in that：The stripping Agent is the mixture of ethamine, TBAH and chlorination 1- octyl group -3- methylimidazoles, and weight compares ethamine：Tetrabutyl hydrogen-oxygen Change ammonium：Chlorination 1- octyl group -3- methylimidazoles are 3:1:6.
  5. A kind of 5. chemical for being used to remove air preheater hard scale as claimed in claim 1, it is characterised in that：The infiltration Agent is APES or polyoxyethylene aliphatic alcohol ether.
  6. A kind of 6. chemical for being used to remove air preheater hard scale as claimed in claim 1, it is characterised in that：The surface Activating agent is：Any one in Aerosol OT, sodium lignin sulfonate, N methyl taurine sodium.
  7. A kind of 7. chemical for being used to remove air preheater hard scale as claimed in claim 1, it is characterised in that：The scale inhibition Agent is the one or more in polyoxyethylene groups pyrophosphate, sodium humate, poly-epoxy succinic acid.
  8. A kind of 8. chemical for being used to remove air preheater hard scale as claimed in claim 7, it is characterised in that：The scale inhibition Agent is polyoxyethylene groups pyrophosphate, sodium humate, poly-epoxy succinic acid, and weight is than polyoxyethylene groups pyrophosphate：Humic acid Sodium：Poly-epoxy succinic acid is 2:2:6.
  9. A kind of 9. chemical for being used to remove air preheater hard scale as claimed in claim 1, it is characterised in that：It is described scattered Agent is 3- TSL 8330s or PVP.
  10. A kind of 10. preparation side for being used to remove the chemical of air preheater hard scale as described in claim 1-9 any one Method, it is characterised in that：Comprise the following steps：
    1）By the 3 methoxypropyl amine of 22-25.5 parts by weight, the pentaerythritol phosphate of 8.3-9.7 parts by weight and 15-20 weight The water mixing of part, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed 400-500r/min, stirs 20- 30min, obtain mixture A；
    2）By the DMAC N,N' dimethyl acetamide of 11.2-12.9 parts by weight, the sodium hydroxide of 1.4-2.6 parts by weight, 18.8-20 weight Part tertiary sodium phosphate mixes with the water of 30-38 parts by weight, is placed in magnetic stirring apparatus, under conditions of 20 DEG C -25 DEG C, rotating speed is 300-400r/min, 30-45min is stirred, obtains mixture B；
    3）By step 1）Obtained mixture A and step 2）After obtained mixture B mixing, put into reactor, and add The surfactant of 2.5-3.3 parts by weight, the antisludging agent of 8.7-9.6 parts by weight, the dispersant of 3.5-4.4 parts by weight, will react Kettle temperature control stirs 2-3h, obtains mixed liquor at 60-70 DEG C, speed of agitator 200-300r/min；
    4）To step 3）Added in obtained mixed liquor the corrosion inhibiter of 7.3-8.8 parts by weight, 5.6-6.4 parts by weight remover, The bleeding agent of 3.2-4.1 parts by weight, temperature of reaction kettle is controlled at 60-70 DEG C, speed of agitator 300-400r/min, stir 8- 10h, produce target product；
    5）By step 4）Obtained target product shakes 12-16h, amplitude 50mm, rotating speed 100-200rpm in bottle swingging machine, Filter, produce final product.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108913097A (en) * 2018-08-21 2018-11-30 国网河南省电力公司西峡县供电公司 A kind of electric pole deicing ice melting agent and preparation method thereof
CN110257179A (en) * 2019-06-20 2019-09-20 南阳理工学院 A kind of chemical composition and its preparation method and application
CN110343579A (en) * 2019-06-13 2019-10-18 国网江西省电力有限公司电力科学研究院 A kind of air preheater chemical
CN112285176A (en) * 2020-10-19 2021-01-29 河北冀研能源科学技术研究院有限公司 Polarographic dissolved oxygen electrode activation regeneration treatment method
CN113388457A (en) * 2021-07-19 2021-09-14 成都扬华源动新材料科技有限公司 Dredging cleaning agent and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN102618404A (en) * 2012-02-29 2012-08-01 过伟权 Air preheater cleaning agent and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102618404A (en) * 2012-02-29 2012-08-01 过伟权 Air preheater cleaning agent and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108913097A (en) * 2018-08-21 2018-11-30 国网河南省电力公司西峡县供电公司 A kind of electric pole deicing ice melting agent and preparation method thereof
CN110343579A (en) * 2019-06-13 2019-10-18 国网江西省电力有限公司电力科学研究院 A kind of air preheater chemical
CN110257179A (en) * 2019-06-20 2019-09-20 南阳理工学院 A kind of chemical composition and its preparation method and application
CN112285176A (en) * 2020-10-19 2021-01-29 河北冀研能源科学技术研究院有限公司 Polarographic dissolved oxygen electrode activation regeneration treatment method
CN113388457A (en) * 2021-07-19 2021-09-14 成都扬华源动新材料科技有限公司 Dredging cleaning agent and preparation method thereof
CN113388457B (en) * 2021-07-19 2022-05-03 成都扬华源动新材料科技有限公司 Dredging cleaning agent and preparation method thereof

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