CN105858922A - Durable corrosion-resistant aerator - Google Patents

Durable corrosion-resistant aerator Download PDF

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Publication number
CN105858922A
CN105858922A CN201610417927.4A CN201610417927A CN105858922A CN 105858922 A CN105858922 A CN 105858922A CN 201610417927 A CN201610417927 A CN 201610417927A CN 105858922 A CN105858922 A CN 105858922A
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China
Prior art keywords
playpipe
weight portion
aeration
parts
aeration plate
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Granted
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CN201610417927.4A
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Chinese (zh)
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CN105858922B (en
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何玮
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Individual
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00—Aeration of stretches of water
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/14—Maintenance of water treatment installations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

The invention relates to sewage treatment equipment, in particular to a centrifugal submerged aerator, and aims at providing a durable corrosion-resistant aerator. According to the submerged aerator, a transmission shaft of a submerged motor is connected with an impeller located in an inner cavity of an aeration disc, a gas inlet is formed in the upper end of the aeration disc, a water inlet is formed in the lower end of the aeration disc, a flow channel used for discharging a water and gas mixture into water is formed in the periphery of the aeration disc, and the surface of the impeller and the surface of the aeration disc are coated with anti-corrosion and anti-rust paint. The anti-corrosion and anti-rust paint is prepared by mixing, by weight, 100 parts of epoxy resin E-44, 50-60 parts of polyamide resin 650, 5-8 parts of xylene, 5-10 parts of propylene glycol, 15-20 parts of tert-butyl alcohol, 5-10 parts of n-butyl acetate, 0.5-1 part of a defoaming agent, 1-2 parts of a leveling agent and 0.2-0.3 part of a flash rust inhibitor CH07A at 120-130 DEG C, wherein the epoxide equivalent of epoxy resin is 210-230 g/Eq. The anti-corrosion and anti-rust paint is environmentally friendly and safe, and guarantees the wear resistance and corrosion resistance of the aerator.

Description

A kind of durable anticorrosive aeration machine
Technical field
The present invention relates to a kind of sewage disposal device, be specifically related to centrifugal submersible aerator.
Background technology
Centrifugal submersible aerator, is a kind of special equipment for aeration aerating in water body in water treatment technology.Its operation principle is: submersible motor power transmission shaft directly drives the half-opened impeller high speed rotating being built in aeration plate, produces high pressure under the effect of rotary blade centrifugal force, and air and water are inhaled into from the air inlet of aeration plate upper/lower terminal respectively；Impeller communicates with being passed through air inlet pipe waterborne, imports air.Aeration plate surrounding is furnished with multiple runner, water, gas mixed liquor radially spray at a high speed from exit after being thoroughly mixed in entering runner, and spread to surrounding rapidly, micro-bubble in small, broken bits water body fully and in pond merges, make the oxygen in air be dissolved in the water, thus reach the purpose to water body aeration aerating.
When this kind of aerator is owing to rotating draining by impeller, produced negative pressure sucks air, it is not necessary to configuration blast apparatus, and equipment equipment investment is few, is therefore extensively used in sewage treatment process.But this kind of currently used aerator has following defects that
1, during aerator work, air is to be inhaled into impeller intraperitoneal by air inlet pipe from impeller axle center hole, owing to motor is located in above aeration plate and coaxial with impeller so that air inlet pipe cannot be docked with the axle center hole above impeller.For solving this problem, the intake method of aerator has two kinds of versions at present: one is that air inlet pipe curves 180 degree of axle center holes entrance below impeller；Two is to arrange a middle gas chamber above mixing chamber and between submersible motor, communicates with air inlet pipe, and the hole below middle gas chamber communicates with impeller axle center hole, directs the air into.
The defect that both structures are deposited is: high-speed air produces additional drag through channel bend or air chamber, causes air-intake negative-pressure loss in head, and air inflow reduces, and reduces the aeration efficiency of aerator.
2, the runner of aerator mixing chamber surrounding is the distribution of horizontal dispersion shape, and operationally water, gas mixed liquor spray the most in the horizontal direction from outlet.During installation, in order to make pool bottom sludge not precipitate, aerator need to be close at the bottom of pond place, and such aerator water inlet and runner are easily blocked by the foreign material in mud, easily cause impeller failure.Although some producers are mounted with slag net in aerator water inlet, but slag net also can be blocked by the fibre object in water, causes aerator aeration rate to decline even cisco unity malfunction.
3, aeration plate is a plate-like foundry goods, and middle cavity places impeller, and surrounding is distributed a plurality of runner and communicates therewith, and runner exit is in aeration plate circumferential edge, and during aeration, aeration plate periphery can form an annular bubble band.It is big that a large amount of minute bubbles in annular bubble band can merge rapidly change because not spreading in time, makes bubble surface area drastically reduce, causes the dissolved oxygen efficiency of water to decline.Meanwhile, along with the change of single isolated bubbles diameter is big, its buoyancy in water increases, and accelerates the rate of climb of bubble, decreases the time of staying that gas ducks in drink, and the dissolved oxygen efficiency that also result in water declines.
CN103058401A disclosed a kind of motor in lower section later, and air inlet pipe is above；Aeration plate periphery has the aerator structure of playpipe.More above-mentioned technical problem is improved.But it is commonly found that the steam water interface of the playpipe ejection of this equipment in Shi Jian, bubble is relatively big, aeration aerating ability is told somebody what one's real intentions are ground problem.In order to increase the turbulence effects of injection tube fluid, it is to avoid bubble merges, in technology disclosed in CN203625148U, increase tap hole at playpipe lower surface, with because of the turbulent flow more tempestuously in playpipe of its fluid.But owing to playpipe can be caused tube fluid to release, the reduction of fluid pressure, flow velocity then directly results in turbulence effects and reduces；So there being certain feasibility in this technical know-how, but actual effect lack lose more than gain.And cause playpipe near outer ends bubble substantially to merge the spilling water surface, lose to the ability of water body oxygenation.
Summary of the invention
The main object of the present invention is to provide a kind of durable anticorrosive aeration machine.
For achieving the above object, the technical solution adopted in the present invention is: a kind of submersible aerator, power transmission shaft connection including submersible motor is positioned at the impeller of aeration plate inner chamber, aeration plate upper end arranges air inlet, lower end arranges water inlet, and aeration plate periphery arranges the runner entering in water by water, gas mixed liquor；Described impeller, aeration plate surface have and are coated with antiseptic and rustproof paint, and described antiseptic and rustproof paint is mixed at 120-130 DEG C by E-44 epoxy resin and 650 polyamide 50-60 weight portions, dimethylbenzene 5-8 weight portion, propylene glycol 5-10 weight portion, tert-butyl alcohol 15-20 weight portion, butyl acetate 5-10 weight portion, defoamer 0.5-1 weight portion, levelling agent 1-2 weight portion, the anti-rust agent 0.2-0.3 weight portion that dodges of CH07A of 100 weight portions；The epoxide equivalent of its epoxy resin is 210-230g/Eq.
Preferably, described antiseptic and rustproof paint is mixed at 120-125 DEG C by E-44 epoxy resin and 650 polyamide 52 weight portions, dimethylbenzene 6 weight portion, propylene glycol 6 weight portion, the tert-butyl alcohol 18 weight portion, butyl acetate 8 weight portion, defoamer 0.6 weight portion, levelling agent 1 weight portion, anti-rust agent 0.2 weight portion that dodges of CH07A of 100 weight portions；The epoxide equivalent of its epoxy resin is 210-230g/Eq.
Preferably, the runner of described aeration plate periphery is arranged obliquely；Described runner exit connects playpipe, and playpipe arranges multiple, and multiple playpipes are arranged around aeration plate periphery rule by length；Described playpipe inner chamber is reducing shape for the tube cavity of fluid circulation.
Preferably, it is inner that described playpipe near outer ends connects coir rope, and coir rope outer end is suspended in water, and length L that described coir rope appears is:
L=2*LAveragely-LPlaypipe；
Wherein,
LAveragelyFor: playpipe average length；
LPlaypipeFor: the playpipe length being connected with this coir rope.
Preferably, the tangential direction axially along aeration plate of described playpipe is arranged.
Preferably, described playpipe, for waiting caliber pipe, the tube wall of this playpipe is inwardly suppressed some recesses and is made tube cavity be reducing shape；Or this playpipe inner chamber makes tube cavity be reducing shape equipped with the block piece of part barrier tube inner chamber.
Preferably, described block piece profile is coincide with playpipe cavity shape, and inside has the through hole of big at both ends and small in middle；Or described block piece is the symmetrical tapered entities in two ends, and is fixed on playpipe inner chamber by a support；Or block piece is the bar-mat reinforcement being fixed in playpipe.
Preferably, described block piece is the symmetrical tapered entities in two ends, and is fixed on, by a support, the position that playpipe inner chamber exports near playpipe；Described coir rope the inner is connected to block piece tube mouth one end.
Preferably, described water inlet is made up of the through hole in the water inlet plate centre position being arranged on aeration plate, and the edge of described through hole is inwardly uniformly arranged multiple toothed projections.
Preferably, described submersible motor is arranged on below aeration plate, and submersible motor bottom connects base；The air inlet pipe that air inlet connects is coaxially arranged with impeller, and vertically extends to more than pond liquid level.
It is low that the antiseptic and rustproof paint of the present invention has raw material murder by poisoning degree, convenient processing and use, and uses propylene glycol and tert-butyl alcohol mixed solvent in formula, can significantly improve system mobility, reduce defoamer, the consumption of levelling agent；Because these auxiliary agents itself do not play anticorrosion, antirust function effect, its weight ratio reduces can promote system active substance content, improves the overall anti-rust and corrosionproperties of paint；And lacquer painting hardness is obviously improved, other solvents or proportioning is used then to be unable to reach the effect above.
And the runner in aeration plate is made into downward-sloping by original level, make the water of ejection, gas fluid-mixing that pool bottom sludge to be stirred, prevent sludge settling.Meanwhile, the time of staying that gas ducks in drink is extended.The external playpipe of runner exit, the length of playpipe is different in size, it is to avoid the formation of aeration plate circumferential annular bubble band during aeration, decreases bubble and merges the probability becoming big.And the variable-diameter structure of tube cavity can increase the turbulent flow severity of injection tube fluid, it is to avoid bubble merges, and significantly improves the effect of aeration aerating.Coir rope can carry out segmentation along steam-water mixing fluid to bubble to be destroyed, it is to avoid bubble merges.Therefore the aerator outlet bubble of the present invention is more tiny, the compact state time can also be kept longer, significantly improve aeration aerating ability in water.Coir rope surface is the most natural has a burr, and Perishing prevention, prolonged resistance to bubble in water.
Through hole edge on aerator water inlet plate arranges projection; circular water inlet is made to become internal tooth form; gap between impeller and water inlet base plate is the least; and constitute scissor-shaped with projection; when the fibre object in sewage or tablet are drawn through water inlet; it is cut off in projection, tears by the blade on impeller rotated, thus reaches blockage resisting and the purpose of protection impeller.Submersible motor is reverse mounted below aeration plate, and air inlet pipe is arranged on above aeration plate, forms lower water inlet, the structure of upper air.Due to air inlet pipe and the same axle center of impeller, air directly enters impeller intraperitoneal from air inlet pipe, will not produce additional drag, loses without negative head, improves the aeration efficiency of aerator.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the another embodiment schematic diagram of Fig. 1；
Fig. 3 is the another embodiment schematic diagram of Fig. 1；
Fig. 4 is the top view of a kind of embodiment of Fig. 1；
Fig. 5 is the top view of the another embodiment of Fig. 1；
Fig. 6 is the upward view of the water inlet in Fig. 1.
Detailed description of the invention
If Fig. 1 is to the submersible aerator as described in 6, including submersible motor 1, the power transmission shaft of submersible motor 1 connects the impeller 3 being positioned at aeration plate 2 inner chamber, aeration plate 2 upper end arranges air inlet, lower end arranges water inlet, aeration plate 2 periphery arranges the runner 4 entering in water by water, gas mixed liquor, and these are all the prior aries relevant to the improvement of the present invention.As for power transmission shaft how transmission, fixing, aeration plate 2, the concrete structure of impeller 3 and arrangement are then that those skilled in the art improve further can realize according to prior art or self creativity, have numerous embodiments perhaps.
Preferably such as Fig. 1-3, described submersible motor 1 is arranged on below aeration plate 2, and the air inlet pipe 7 that air inlet connects is coaxially arranged with impeller 3, and vertically extends to more than pond liquid level；Described submersible motor 1 bottom connects base 6.Submersible motor 1 is reverse mounted below aeration plate 2, and air inlet pipe 7 is arranged on above aeration plate 2, forms lower water inlet, the structure of upper air.Due to air inlet pipe 7 and the same axle center of impeller 3, air directly enters in impeller 3 working region from air inlet pipe 7, will not produce additional drag, loses without negative head, improves the aeration efficiency of aerator.Simultaneously, the base 6 that submersible motor 1 bottom is installed constitutes the bearing of aeration, improve water inlet height, effectively reduce because sucking blocking and the probability of damage of impeller 3 that mud causes, and save and simplify bearing bigger when submersible motor 1 is arranged on above aeration plate 2, simplify structure, reduce cost of manufacture.
The present invention is improved by: the runner 4 of described aeration plate 2 periphery is arranged obliquely.This runner 4 can have numerous embodiments: as shown in Figure 1, and aeration plate 2 is the disk-like structure of hollow, and disc rim portions arranges that uniform channel connection dish is outer and in the middle of dish for arranging the inner chamber of impeller 3.Can also be that aeration plate 2 is made up of the fixed connecting rod near upper and lower two plate bodys and plate body outward flange.Fixed connecting rod can support two plate bodys, and the region between bar and bar just naturally constitutes runner 4 simultaneously.
As shown in Figure 1, air inlet is positioned at above aeration plate 2 and impeller 3, and by sucking air in air inlet pipe 7；Air flow is as shown in arrow 8 in Fig. 1.Water inlet is positioned at centre position, aeration plate 2 lower end.Link 10 upper end connects aeration plate 2, lower end connects submersible motor 1.Link 10 periphery is engraved structure, in current direction as shown in arrow 9 in Fig. 1 enters link 10 and is upwards entered aeration plate 2 by water inlet；Then air and water mixed flow being ejected into obliquely in pond by runner 4 under the effect of impeller 3.Runner 4 in aeration plate 2 is made into downward-sloping by original level, makes the water of ejection, gas mixed liquor stir pool bottom sludge, prevents sludge settling.Meanwhile, water, gas mixed liquor obliquely, then move upward under buoyancy, and whole motion path is similar to opening up parabola, and motion path lengthens, and extends the time of staying that gas ducks in drink；Significantly improve the effect of oxygenation in pond.
Core is improved: described runner 4 outlet connects playpipe 5, and playpipe 5 arranges multiple, and multiple playpipes 5 are arranged around aeration plate 2 periphery rule by length.Playpipe 5 is exactly generally straight-run of pipe, is connected on aeration plate 2 periphery.Then water, gas mixed liquor rush through runner 4 and playpipe 5 inner chamber and are mapped in pond.When size and impeller 3 diameter of aeration plate 2 are suitable, playpipe 5 is connected directly between aeration plate 2 outer wall at impeller 3 edge, now the tube chamber of playpipe 5 i.e. a kind of embodiment of runner 4.In such improvement, usual aeration plate 2 diameter can suitably reduce, and saves casting processing cost；Runner 4 exports external playpipe 5, and the length of playpipe 5 is different in size, it is to avoid the formation of aeration plate 2 circumferential annular bubble band during aeration, decreases bubble and merges the probability becoming big.
As for so-called " by length " ground " rule layouts ", its purpose seeks to utilize playpipe 5 water, gas mixed liquor to be sprayed into dispersedly in pond, it is to avoid form annular bubble band and bubbling polymerization.As such, it can be that as shown in Figure 4, playpipe 5 arranges many groups, often sets gradually the different long playpipe 51 of pipe range, middle playpipe 52, short playpipe 53 in group, and then many group playpipes 5 are evenly arranged along aeration plate 2 periphery.Or as shown in Figure 5, playpipe 5 includes long playpipe group 54, short playpipe group 55, and often playpipe 5 length in group is roughly the same, long playpipe group 54 and short playpipe group 55 are uniform along aeration plate 2 periphery, compartment of terrain is arranged.Aeration plate 2 outward flange between adjacent playpipe 5 can be closed；Can also be that runner 4 directly communicates with outside, to discharge a small amount of water, gas mixed liquor.Also can increase aeration service area, make gas distribution tend to uniform according to pond flat shape and be sized and dimensioned to different length.Such as use during the embodiment shown in Fig. 3 is suitable for rectangular cesspool.Playpipe 5 and aeration plate 2 are fabricated construction, can use Assembling, it is simple to transport.
And described playpipe 5 inner chamber is reducing shape for the tube cavity of fluid circulation.The described the most described playpipe of reducing shape 5, for waiting caliber pipe, the tube wall of this playpipe 5 is inwardly suppressed some recesses and is made tube cavity be reducing shape.Or this playpipe 5 inner chamber makes tube cavity be reducing shape equipped with the block piece 12 of part barrier tube inner chamber；As Figure 1-3.Specifically, described block piece 12 can be shown in Fig. 2, and profile is coincide with playpipe 5 cavity shape, and inside has the through hole of big at both ends and small in middle；Or as it is shown on figure 3, described block piece 12 is the entity that two ends symmetry is tapered, and it is fixed on playpipe 5 inner chamber by a support；Or as shown in Figure 1, block piece 12 is the bar-mat reinforcement being fixed in playpipe 5.Certainly, playpipe 5 also can ladder pipe be constituted, and such inner chamber is naturally also reducing shape.Inner chamber reducing shape can allow the fiercer turbulent flow of steam water interface, it is to avoid bubble merges.
It is preferred that described playpipe 5 near outer ends connects coir rope 11 the inner, coir rope 11 outer end is suspended in water.On the simplest outer end mouth of pipe being just integrally fixed at playpipe 5 of coir rope 11.Length L that described coir rope 11 appears is:
L=2*LAveragely-LPlaypipe；
Wherein, LAveragelyFor: the average length of playpipe 5；
LPlaypipeFor: the playpipe length being connected with this coir rope 11.
The namely coir rope 11 that looks like is revealed in the length outside playpipe 5, adds that the length of playpipe 5 should be substantially equal to the twice of playpipe 5 average length.As Fig. 4, that is to say in 5 coir rope 11 outer end the most just with aeration plate 2 axle center as the center of circle, in playpipe 5 average length 2 again circumference as radius.In addition playpipe 5 itself is different in size but regular dislocation is arranged, aeration plate 2 steam-water mixing out spatially can be uniformly distributed around aerator, stirs mud, aeration aerating.
The tangential direction axially along aeration plate 2 of described playpipe 5 is arranged.So can reduce water, the drag losses of gas mixed liquor injection, it is simple to spray farther, evenly in pond；Bubble is avoided to reunite further.Most preferably as it is shown on figure 3, the described block piece 12 symmetrical tapered entity that is two ends, and it is fixed on, by a support, the position that playpipe 5 inner chamber exports near playpipe 5；Described coir rope 11 the inner is connected to block piece 12 tube mouth one end.Coir rope 11 so can be facilitated to connect, rely on reducing position i.e. to may utilize the effect disperseing bubble of coir rope 11 after terminating simultaneously, coir rope 11 also can be played best buoyancy and impact effect by steam water interface, allows coir rope 11 be in the centre position of soda pop stream all the time.And the symmetrical tapered entity drag losses of convection cell in playpipe 5 in two ends can be preferably minimized.
Further, as shown in Figure 6, described water inlet is made up of the through hole in water inlet plate 21 centre position being arranged on aeration plate 2, and the edge of described through hole is inwardly uniformly arranged multiple toothed projections 22.Aeration plate 2 typically casting processes, and water inlet plate 21 can be so that the assembling of impeller 3.Manhole edge on water inlet plate 21 is arranged toothed projections 22, then water inlet just correspondingly forms zigzag or claims gear shape.Gap between blade and the water inlet plate 21 of impeller 3 is the least; and constitute en scissors-like construction with protruding 22; when the fibre object in sewage or tablet are drawn through water inlet, it is cut off on protruding 22, tears by the blade of rotation, thus reaches blockage resisting and the purpose of protection impeller 3.
Preferably, the parts surfaces such as described impeller 3, aeration plate 2, base 6 have and are coated with antiseptic and rustproof paint.Described antiseptic and rustproof paint is mixed at 120-130 DEG C by E-44 epoxy resin and 650 polyamide 50-60 weight portions, dimethylbenzene 5-8 weight portion, propylene glycol 5-10 weight portion, tert-butyl alcohol 15-20 weight portion, butyl acetate 5-10 weight portion, defoamer 0.5-1 weight portion, levelling agent 1-2 weight portion, the anti-rust agent 0.2-0.3 weight portion that dodges of CH07A of 100 weight portions；The epoxide equivalent of its epoxy resin is 210-230g/Eq.
It is low that such antiseptic and rustproof paint has raw material murder by poisoning degree, convenient processing and use, and uses propylene glycol and tert-butyl alcohol mixed solvent in formula, can significantly improve system mobility, reduce defoamer, the consumption of levelling agent；Because these auxiliary agents itself do not play anticorrosion, antirust function effect, its weight ratio reduces can promote system active substance content, improves the overall anti-rust and corrosionproperties of paint；And lacquer painting hardness is obviously improved, other solvents or proportioning is used then to be unable to reach the effect above.
The embodiment of the antiseptic and rustproof paint of the present invention:
Raw material sources and explanation: the epoxy resin trade mark: E-44, epoxide equivalent is 210-230g/Eq；
The polyamide trade mark: 650；
The anti-sudden strain of a muscle rust agent trade mark: CH07A；
The defoamer trade mark: EL-2608, Dongguan, the place of production；
The levelling agent trade mark: EL-2819, Dongguan, the place of production；
Remaining simple substance is commercially available prod, technical grade.
Embodiment one
By weight: epoxy resin: 100 parts, polyamide: 52 parts, dimethylbenzene 6 parts, propylene glycol 6 parts, the tert-butyl alcohol 18 parts, butyl acetate 8 parts, defoamer 0.6 part, levelling agent 1 part, anti-dodge rust agent: 0.2 part, raw material is mixed at 120-125 DEG C.
Embodiment two
By weight: epoxy resin: 100 parts, polyamide: 52 parts, dimethylbenzene 6 parts, propylene glycol 6 parts, the tert-butyl alcohol 16 parts, butyl acetate 6 parts, defoamer 0.6 part, levelling agent 1.2 parts, anti-dodge rust agent: 0.25 part, raw material is mixed at 120-125 DEG C.
Embodiment three
By weight: epoxy resin: 100 parts, polyamide: 58 parts, dimethylbenzene 8 parts, propylene glycol 9 parts, the tert-butyl alcohol 18 parts, butyl acetate 10 parts, defoamer 0.8 part, levelling agent 1.8 parts, anti-dodge rust agent: 0.3 part, raw material is mixed at 120-125 DEG C.
Comparative example one
By weight: epoxy resin: 100 parts, polyamide: 52 parts, dimethylbenzene 6 parts, propylene glycol 24 parts, butyl acetate 8 parts, defoamer need 3 parts, levelling agent need 6 parts, anti-dodge rust agent: 0.2 part, raw material is mixed at 120-125 DEG C；Qualified products then cannot be obtained as defoamer and levelling agent reduce.
Comparative example two
By weight: epoxy resin: 100 parts, polyamide: 52 parts, dimethylbenzene 6 parts, the tert-butyl alcohol 24 parts, butyl acetate 8 parts, defoamer need 3 parts, levelling agent need 6 parts, anti-dodge rust agent: 0.2 part, raw material is mixed at 120-125 DEG C；Qualified products then cannot be obtained as defoamer and levelling agent reduce.
Comparative example three
By weight: epoxy resin: 100 parts, polyamide: 52 parts, dimethylbenzene 6 parts, 24 parts of butanol, butyl acetate 8 parts, defoamer need 3 parts, levelling agent need 6 parts, anti-dodge rust agent: 0.2 part, raw material is mixed at 120-125 DEG C；Qualified products then cannot be obtained as defoamer and levelling agent reduce.
Above-mentioned six samples are carried out performance test results as follows:
Project Example one Example two Example three Contrast one Contrast two Contrast three
Outward appearance Smooth Smooth Smooth Smooth Smooth Smooth
Gloss (%) ≥90 ≥90 ≥90 ≥90 ≥90 ≥90
Hardness (pencil) ≥6H ≥6H ≥6H ≥3H ≥3H ≥3H
Impulsive force (positive and negative) cm 50 50 50 35 40 50
Alkali resistance (NaOH2%500h) Unchanged Unchanged Unchanged Bubble Unchanged Bubble, come off
Salt spray resistance (120h level) ≥2 ≥2 ≥2 ≥2 ≥2 ≥2
Adhesive force (cross-hatching level) ≤1 ≤1 ≤1 ≤1 ≤1 ≤1
Resistance to 100 DEG C of decocting in water 10h Unchanged Unchanged Unchanged Bubble Unchanged Bubble
Oil resistant (93# gasoline, 28# gasoline, brake fluid) 48h Unchanged Unchanged Unchanged Unchanged Unchanged Unchanged
Anti-scratch 3000 times Unchanged Unchanged Unchanged Cut, come off Cut, come off Cut, come off

Claims (10)

  1. null1. a durable anticorrosive aeration machine，Power transmission shaft connection including submersible motor (1) is positioned at the impeller (3) of aeration plate (2) inner chamber，Aeration plate (2) upper end arranges air inlet、Lower end arranges water inlet，Aeration plate (2) periphery is arranged water、Gas mixed liquor enters the runner (4) in water，It is characterized in that: described impeller (3)、Aeration plate (2) surface has and is coated with antiseptic and rustproof paint，Described antiseptic and rustproof paint is by the E-44 epoxy resin of 100 weight portions and 650 polyamide 50-60 weight portions、Dimethylbenzene 5-8 weight portion、Propylene glycol 5-10 weight portion、Tert-butyl alcohol 15-20 weight portion、Butyl acetate 5-10 weight portion、Defoamer 0.5-1 weight portion、Levelling agent 1-2 weight portion、The anti-rust agent 0.2-0.3 weight portion that dodges of CH07A is mixed at 120-130 DEG C；The epoxide equivalent of its epoxy resin is 210-230g/Eq.
  2. Durable anticorrosive aeration machine the most according to claim 1, it is characterised in that: described antiseptic and rustproof paint is mixed at 120-125 DEG C by E-44 epoxy resin and 650 polyamide 52 weight portions, dimethylbenzene 6 weight portion, propylene glycol 6 weight portion, the tert-butyl alcohol 18 weight portion, butyl acetate 8 weight portion, defoamer 0.6 weight portion, levelling agent 1 weight portion, anti-rust agent 0.2 weight portion that dodges of CH07A of 100 weight portions；The epoxide equivalent of its epoxy resin is 210-230g/Eq.
  3. Durable anticorrosive aeration machine the most according to claim 2, it is characterised in that: the runner (4) of described aeration plate (2) periphery is arranged obliquely；Described runner (4) outlet connects playpipe (5), and playpipe (5) arranges multiple, and multiple playpipes (5) are arranged around aeration plate (2) periphery rule by length；Described playpipe (5) inner chamber is reducing shape for the tube cavity of fluid circulation.
  4. Durable anticorrosive aeration machine the most according to claim 3, it is characterised in that: it is inner that described playpipe (5) near outer ends connects coir rope (11), and coir rope (11) outer end is suspended in water, and length L that described coir rope (11) appears is:
    L=2*LAveragely-LPlaypipe；
    Wherein,
    LAveragelyFor: playpipe (5) average length；
    LPlaypipeFor: the playpipe length being connected with this coir rope (11).
  5. Durable anticorrosive aeration machine the most according to claim 4, it is characterised in that: the tangential direction axially along aeration plate (2) of described playpipe (5) is arranged.
  6. Durable anticorrosive aeration machine the most according to claim 5, it is characterised in that: described playpipe (5), for waiting caliber pipe, the tube wall of this playpipe (5) is inwardly suppressed some recesses and is made tube cavity be reducing shape；Or this playpipe (5) inner chamber makes tube cavity be reducing shape equipped with the block piece (12) of part barrier tube inner chamber.
  7. Durable anticorrosive aeration machine the most according to claim 6, it is characterised in that: described block piece (12) profile is coincide with playpipe (5) cavity shape, and inside has the through hole of big at both ends and small in middle；Or described block piece (12) is the symmetrical tapered entities in two ends, and is fixed on playpipe (5) inner chamber by a support；Or block piece (12) is for be fixed on the bar-mat reinforcement in playpipe (5).
  8. Durable anticorrosive aeration machine the most according to claim 7, it is characterised in that: described block piece (12) is the symmetrical tapered entities in two ends, and is fixed on, by a support, the position that playpipe (5) inner chamber exports near playpipe (5)；Described coir rope (11) the inner is connected to block piece tube mouth one end.
  9. 9. according to the durable anticorrosive aeration machine described in any one in claim 3-8, it is characterized in that: described water inlet is made up of the through hole in water inlet plate (21) centre position being arranged on aeration plate (2), and the edge of described through hole is inwardly uniformly arranged multiple toothed projections (22).
  10. Durable anticorrosive aeration machine the most according to claim 9, it is characterised in that: described submersible motor (1) is arranged on aeration plate (2) lower section, and submersible motor (1) bottom connects base (6)；The air inlet pipe (7) that air inlet connects is coaxially arranged with impeller (3), and vertically extends to more than pond liquid level.
CN201610417927.4A 2016-06-15 2016-06-15 A kind of durable anticorrosive aeration machine Expired - Fee Related CN105858922B (en)

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