CN102258957B - Large-scale anti-corrosion agitating paddle and preparation method thereof - Google Patents
Large-scale anti-corrosion agitating paddle and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an anti-corrosion agitating paddle in a large-scale chemical leaching tank and a preparation method thereof. The large-scale anti-corrosion agitating paddle disclosed by the invention comprises an agitating shaft, an agitating vane and a wheel hub. The technical scheme of the invention is as follows: the thickness of the agitating vane is 60-90mm; no gap exists in the joint of the root of a blade and a wheel hub rack; and the agitating paddle is molded by adopting anti-corrosion material plaster, thereby forming an anti-corrosion runner without a vortex liquid. When an arc-shaped vane is horizontally arranged, the open liquid surfaces of the blade, namely two sides of the blade from the tail of the blade to the middle part of the blade and from the root to a horizontal plane form oblique angles which are not equal; the plane of the blade formed from two side bottom lines of the blade and the horizontal plane are arranged on the agitating shaft in a tilting manner; and the bottom plane and the horizontal plane of a straight plate blade are arranged on the agitating shaft in a tilting manner. The large-scale anti-corrosion agitating paddle disclosed by the invention has the advantages of good vortex liquid diversion, great propulsion, good agitating effects, short leaching time, long service life and suitability for the large-scale chemical leaching tank with the volume of 150-500m<3>.
Description
Technical field
The invention belongs to the paddle technical field, be specifically related to a kind of for corrosion-proof agitating valve in large-size chemical leaching groove and preparation method thereof.
Background technology
Usually, higher for the requirement of paddle used in the large-scale leaching grooves such as manganese dioxide, manganese metal, cathode copper and electrolytic aluminium in electrochemical industry, need to be fit to large volume, stirring at low speed running, the requirements such as water conservancy diversion is good, propulsive force is large, anticorrosive, high temperature resistance.Present stirrer paddle, wheel hub, axle roughly are divided into three major types: a class is that titanium 316L and stainless steel material are made, comprise having of various water conservancy diversion and planform, but blade thickness generally only has 15-20mm, frequent sealing-off, meet the severe corrosive quick abrasion, blade and hub frame junction convex-concave are large, easily produce large whirlpool liquid, have a strong impact on propulsive force or the power that raises up, and cost is high, service life is short, mixing effect is poor, leaching time is long; Two classes are that various rubber plastics are made, its convex-concave seam easily produces seepage due to bounce and fission when the temperature difference is large, easily burn when high temperature and deep-etching, therefore, aging fast, maintenance difficulty is large, service time is short, blade is large with generation whirlpool, hub frame junction liquid, water conservancy diversion is poor, propulsive force is little, mixing effect is poor, leaching time is long; Three classes are that anti-corrosion material is made, such as phosphorus sheet, epoxy, KPI clay, furans, phenolic fiberglass reinforced plastics, it is in high temperature, deep-etching, the long-time stirring, and quick abrasion, coefficient of thermal expansion and contraction is poor, difficulty of construction is large, curing period is long, service time is short, whirlpool liquid is large, water conservancy diversion is poor, propulsive force is little, mixing effect is poor, leaching time is long.
Summary of the invention
First purpose of the present invention is for the defects that exists in prior art, provide that a kind of not whirlpool liquid water conservancy diversion is good, the large mixing effect of propulsive force is good, leaching time is short, long service life be used for 150-500m
3The large anticorrosion erosion paddle of volume leaching groove.
First purpose of the present invention realizes by the following technical solutions: this large anticorrosion erosion paddle, comprise shaft, stirrer paddle and wheel hub, stirrer paddle comprises the anti-corrosion material that is shaped based on the steel skeleton of blade form and parcel steel skeleton, and steel skeleton is connected with the buttcover plate of wheel hub by screw; Stirrer paddle or be respectively the arc blade of convex-concave cambered surface for upper and lower surface, or be the straight plate blade on plane for the above and below; Be characterized in:
Described arc blade thickness range is 60 ~ 80mm; During the blade horizontal positioned blade open liquid level blade two sides from the blade afterbody to blade the side, middle part, form unequal oblique angle from the blade middle part to root of blade side and horizontal plane: open before blade liquid level from the blade tail end to stir that left surface that axis direction looks comprises from the blade afterbody to blade the side, middle part and in the middle part of the blade to the root of blade side, two sides all are tilted to the right, with the angle of horizontal plane be respectively 80 ~ 85 and 75 ~ 80; Open liquid level after blade and namely comprise the side, middle part from the blade afterbody to blade from the blade tail end to stirring the right flank that axis direction looks, also be tilted to the right, with the angle of horizontal plane be 83 ~ 87; Blade is installed on shaft at a slant with the formed plane of its both sides hemline and horizontal plane, open before blade liquid level be in the top, after open liquid level be in the below, range of tilt angles be 25 ~ 45 the degree; The root of blade and wheel hub hub frame buttcover plate junction are seamless, adopt thickness that antiseptic cement gum makes a trend shaft by 65 mm to 85 mm to 135 mm gradual changes without the anticorrosion runner of whirlpool liquid; The top of the root of blade and wheel hub hub frame buttcover plate junction is also seamless, adopts antiseptic cement gum to make the circular arc transition face;
Described straight plate blade thickness range is 65 ~ 90mm; During the blade horizontal positioned, the angle of opening liquid level blade two sides and horizontal plane of blade is 90; Blade is installed on shaft at a slant with its baseplane and horizontal plane, and is identical with the definition of described arc blade, front open liquid level be in the top, after open liquid level be in the below, range of tilt angles be 25 ~ 45 the degree; The root of blade and wheel hub hub frame buttcover plate junction are seamless, adopt thickness that antiseptic cement gum makes a trend shaft by 65 mm to 85 mm to 135 mm gradual changes without the anticorrosion runner of whirlpool liquid; Also seamless between the top of the root of blade and wheel hub hub frame buttcover plate junction, adopt antiseptic cement gum to make the circular arc transition face;
Described shaft adopts the thick-walled pipe of Ф 194 ~ 219mm, and the tube wall of the shaft except wheel hub hub frame is installed is provided with nexine dope mud layer, steel mesh steel wire floor, outer dope mud layer outward successively;
On described shaft or double-deck eight oars are installed, namely bottom is equipped with a four-bladed arc blade, and the upper strata is equipped with a straight plate blade of four-bladed;
On described shaft or three layer of ten oar is installed, namely bottom is equipped with the straight plate blade of two blades, and the middle level is equipped with a four-bladed arc blade, and the upper strata is equipped with a straight plate blade of four-bladed.
For different volumes and rotating speed, assemble balance, the steel skeleton of described arc blade or steel plate frame, or steel plate framework of steel reinforcement for guaranteeing weight balancing and center of gravity; When being steel plate frame, be drilled with some circular holes on steel plate; When being the steel plate framework of steel reinforcement, the part that itself and wheel hub buttcover plate are connected by screw is steel plate, one side or what be positioned at this part is all steel plate, and be drilled with some circular holes on steel plate, in addition be bar construction;
The steel skeleton of described straight plate blade is steel plate structure, and being positioned at blade afterbody place at steel plate, to be drilled with afterbody be all the other cavities for the linear limit, circular arc limit, is drilled with square or leg-of-mutton cavity at the steel plate middle part.
Second purpose of the present invention is to provide the preparation method of above-mentioned large anticorrosion erosion paddle, comprises following process:
(1) making of blade: at first, carry out twice anticorrosion process after the steel skeleton rust cleaning with blade and process;
Adopt the Multilayer connected mould multi-disc blade of producing once: the bottom of first anti-corrosion material being injected every layer of mould, by technique layering pressure, then put into steel skeleton, anti-corrosion material reinjects, layering pressure again, the roll extrusion that formalizes, put the membrane separation stereotype plate, the dress connection mode carries out the disjunctor casting again and puts the top positioning module after good, advances in closed equipment insulation to vulcanize;
Vulcanizing treatment is after 36 hours at the temperature of 60 ℃ ~ 130 ℃, cooling, loose film, demoulding, finishing again, then after adding heat-insulating powder in reactive phenolic resin, ooze the method brushing on blade with heat, vulcanized 24 hours at the temperature of 80 ℃ ~ 130 ℃, continuous 6 ~ 7 vulcanizing treatment are to the blade surface light so repeatedly again;
When making the arc blade, with the arc blade open liquid level be blade two sides from the blade afterbody to blade the side, middle part, form unequal oblique angle from the blade middle part to root of blade side and horizontal plane: open before blade liquid level namely from the blade tail end to stir that left surface that axis direction looks comprises from the blade afterbody to blade the side, middle part and in the middle part of the blade to the root of blade side, two sides all are tilted to the right, with the angle of horizontal plane be respectively 80 ~ 85 and 75 ~ 80; Open liquid level after blade and namely comprise the side, middle part from the blade afterbody to blade from the blade tail end to stirring the right flank that axis direction looks, also be tilted to the right, with the angle of horizontal plane be 83 ~ 87; The blade thickness range is 60 ~ 80mm;
When making straight plate blade, the liquid level of opening of blade is that the angle of blade two sides and horizontal plane is 90; The blade thickness range is 65 ~ 90mm;
(2) installation of blade: be installed to the root of blade on the buttcover plate of the wheel hub hub frame on shaft by screw, and make the arc blade be installed at a slant on shaft with the formed plane of its both sides hemline and horizontal plane, make straight plate blade be installed at a slant on shaft with its baseplane and horizontal plane, open liquid level before blade and be in the top, after open liquid level be in the below, range of tilt angles be 25 ~ 45 the degree;
(3) runner moulding: root and wheel hub hub frame buttcover plate junction employing antiseptic cement gum at blade are smeared moulding, make between blade root and hub frame seamless, thereby form one the trend shaft thickness by 65 mm to 85 mm to 135 mm gradual changes without the anticorrosion runner of whirlpool liquid; Adopt antiseptic cement gum to smear moulding on the top of blade root and hub frame buttcover plate junction, make between the hub frame on blade root and buttcover plate top seamless, thereby form a circular arc transition face;
(4) the anticorrosion preparation of shaft: shaft adopts the thick-walled pipe of Ф 194 ~ 219mm to make, outside the tube wall of the shaft except wheel hub hub frame is installed, at first stick with paste one deck antiseptic cement gum, form nexine dope mud layer, put again the steel mesh of 2mm, after the steel wire encircling with Ф 2mm, then paste one deck antiseptic cement gum over, strengthening superficial density with the manual polishing of acidproof powder at last, is the outer dope mud layer of 13 ~ 15mm thereby form thickness;
(5) making of double-deck eight oars and three layer of ten oar paddle:
The quaterfoil arc blade of above-mentioned technique making is installed on as stated above the bottom of shaft, the straight plate blade of quaterfoil is installed on the upper strata of shaft, thereby forms double-deck eight oar paddles;
The two straight plate blades of blade of above-mentioned technique making are installed on as stated above the bottom of shaft, quaterfoil arc blade are installed on the middle level of shaft, the straight plate blade of quaterfoil is installed on the upper strata of shaft, thereby forms three layer of ten oar paddle.
More particularly, anti-corrosion material described in step (1) refers to that reactive phenolic resin, porcelain powder, silica flour, diamond dust are respectively by the mixture of 19.17%, 43%, 12.5%, 25.33% mass percent; Antiseptic cement gum described in step (3) and step (4) refers to that reactive phenolic resin, acidproof powder filler, curing agent are by the mixture of the mass ratio of 1:1.2 ~ 1.8:0.02 ~ 0.05.
Accordingly, when the steel skeleton of the described blade of step (1) is the steel skeleton of arc blade, or adopt steel plate frame, or adopt the steel plate framework of steel reinforcement; When adopting steel plate frame, bore some circular holes on steel plate; When adopting the steel plate framework of steel reinforcement, the part that itself and wheel hub buttcover plate are connected by screw adopts steel plate, or is positioned at one side employing steel plate of this part, and bores some circular holes, employing bar construction in addition on steel plate;
When the steel skeleton of the described blade of step (1) is the steel skeleton of straight plate blade, employing be steel plate structure, and being positioned at blade afterbody place at steel plate, to bore afterbody be all the other cavities for the linear limit, circular arc limit, in the square or leg-of-mutton cavity of steel plate drilled in middle.
The present invention is due to the larger blade of employing thickness value, and blade is inclined relative to horizontal certain angle when being arranged on shaft, and the liquid level of opening of arc blade also forms certain oblique angle with horizontal plane; Add and adopt antiseptic cement gum to smear moulding at root and the wheel hub hub frame of blade, formed between blade and shaft seamless without the anticorrosion runner of whirlpool liquid, strengthened propulsive force, (39 ~ 60 rev/mins) produce the large wave of splayed when the blade low-speed running, and the gap drop of large wave strengthens propulsive force along runner.Experiment showed, that bilayer eight oars that adopt in the present invention or three layer of ten oar paddle take over formula and advance, per minutely turn over mixed liquid 1200 ~ 2600m-
3, belong to stealthy large wave and mix, at 150m
3To 380m
3Lower of volume need a mixing effect that just surpasses 2 to 3 of original stainless steel schemes, under equal conditions can reduce residual quarrel content 0.5 ~ 1%.And large propulsive force makes the shaft weight saving in running, has reduced mechanical wear.
Shaft of the present invention has increased its bulk strength, the impact of anti-foreign matter and anti-corrosive properties due to the structural manufacturing process that has adopted dope mud layer and steel wire steel mesh layer.Blade has also adopted corrosion resistant reactive phenolic resin and preparation technology, experiment showed, that the blade surface water absorption rate is 0, and reaches nothing corrosion under concentrated acid, diluted acid and high temperature, Mohs' hardness≤7, year wearing and tearing 1-2 millimeter.
The experiment proved that, profitable fruit of the present invention is mainly reflected in following several aspect:
(1) long service life: be the several times of stainless steel material or the decades of times of other material service life of the present invention.
(2) high temperature resistant: as not chap in 3 ℃ to+130 ℃ temperature ranges of ﹣.
(3) wear-resistant: as to use middle age wearing and tearing 0.7-2.0 ㎜ at manganese dioxide and manganese metal.
(4) be able to bear strong corrosion: in electrolytic manganese dioxide and the too white medium of metal acid, to rare deep-etching process, non-corrosiveness peels off sulfuric acid by dense.
(5) high propulsive force: blade and wheel hub junction without whirlpool liquid runner, efficient utilize running to stir propulsive force with the clay moulding.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention.
Fig. 2 is the structural representation of quaterfoil arc blade of the present invention when not smearing antiseptic cement gum when being installed on wheel hub hub frame.
Fig. 3 is the structural representation of the straight plate blade of quaterfoil of the present invention when not smearing antiseptic cement gum when being installed on wheel hub hub frame.
Fig. 4 is the structural representations of the two straight plate blades of blade of the present invention when not smearing antiseptic cement gum when being installed on wheel hub hub frame.
Fig. 5 is the cross-sectional view of shaft of the present invention.
Fig. 6 to Fig. 9 is the structural representation of the steel skeleton of arc blade of the present invention.
Figure 10 to Figure 11 is the structural representation of the steel skeleton of straight plate blade of the present invention.
Figure 12 is the structural representation of the Multilayer connected mould of arc blade.
Figure 13 is the structural representation of the Multilayer connected mould of straight plate blade.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 1, the present embodiment is a bilayer eight oar paddles, it comprises shaft 1, arc blade 2 and straight plate blade 3, wheel hub 4 and wheel hub 5, and arc blade 2 and straight plate blade 3 are comprised of the anti-corrosion material that its inside is shaped based on the steel skeleton of blade form and parcel steel skeleton.As seen from the figure, double-deck eight oar paddles are by wheel hub 4, four-bladed arc blade 2 to be installed at the bottom of shaft 1, by wheel hub 5, the straight plate blade 3 of four-bladed are installed on the upper strata of shaft 1.
The vane thickness of the arc blade 2 of the present embodiment is 70mm, and the upper and lower faces of blade is respectively protruding, recessed cambered surface.During the blade horizontal positioned, blade open liquid level be blade two sides from the blade afterbody to blade the side, middle part, form unequal oblique angle from the blade middle part to root of blade side and horizontal plane, that is to say, open liquid level 601 before blade namely from the blade tail end to stirring that left surface that axis direction looks comprises from the blade afterbody to blade the side, middle part and from the blade middle part to the root of blade side, two sides all are tilted to the right, with the angle of horizontal plane be respectively 82 and 78; Open liquid level 602 after blade and namely comprise the side, middle part from the blade afterbody to blade from the blade tail end to stirring the right flank that axis direction looks, also be tilted to the right, with the angle of horizontal plane be 85.The blade of arc blade 2 is installed on shaft 1 at a slant with the formed plane of its both sides hemline and horizontal plane, open before blade liquid level 601 be in the top, after open liquid level 602 be in the below, the angle of inclination be 30 the degree.Referring to Fig. 2, specifically, arc blade 2 is that the screw 7 by its root is connected on the buttcover plate 8 of wheel hub 4.As seen from Figure 1, the root of blade and wheel hub hub frame buttcover plate junction are seamless, adopt thickness that antiseptic cement gum makes a trend shaft 1 by 65 mm to 85 mm to 135 mm gradual changes without the anticorrosion runner 9 of whirlpool liquid.In addition, the top of the root of blade and wheel hub hub frame buttcover plate junction is also seamless, adopts antiseptic cement gum to make circular arc transition face 10.
The vane thickness of the straight plate blade 3 of the present embodiment is 75mm, and the above and below of blade is the plane.The liquid level of opening of blade is that the baseplane of blade two sides and blade forms the right angle; Blade also is installed on shaft 1 at a slant with its baseplane and horizontal plane, open before blade liquid level 1101 be in the top, after open liquid level 1102 be in the below, range of tilt angles be 30 the degree.Referring to Fig. 3, specifically, straight plate blade 3 is also that the screw 12 by its root is connected on the buttcover plate 13 of wheel hub 5.As seen from Figure 1, the root of blade and wheel hub hub frame buttcover plate junction are also seamless, adopt thickness that antiseptic cement gum makes a trend shaft 1 by 65 mm to 85 mm to 135 mm gradual changes without the anticorrosion runner 14 of whirlpool liquid; Also seamless between the top of the root of blade and wheel hub hub frame buttcover plate junction, adopt antiseptic cement gum to make circular arc transition face 15.
Referring to Fig. 5, the shaft 1 of the present embodiment adopts the thick-walled pipe of Ф 219mm, and the outside of the tube wall 16 of the shaft 1 except wheel hub hub frame is installed is provided with nexine dope mud layer 17, steel mesh steel wire floor 18, outer dope mud layer 19 successively.
Referring to Fig. 6, Fig. 7, Fig. 8 and Fig. 9, it is the schematic diagram of four kinds of versions of the steel skeleton of arc blade of the present invention 2 inside.Wherein, Fig. 6 and Fig. 7 are steel plate frames, as seen from the figure, are drilled with some circular holes on steel plate.Fig. 8 and Fig. 9 are the steel plate frameworks of steel reinforcement, and as seen from the figure, it is steel plate with the part that the wheel hub buttcover plate is connected by screw 7, one side or what be positioned at this part is all steel plate (as shown in Figure 9), and be drilled with some circular holes on steel plate, in addition be bar construction.Referring to Figure 10 and Figure 11, it is the schematic diagram of two kinds of versions of the steel skeleton of straight plate blade of the present invention 3 inside.The steel skeleton of straight plate blade 3 is steel plate structures, and as seen from the figure, being positioned at blade afterbody place at steel plate, to be drilled with afterbody be all the other cavities for the linear limit, circular arc limit, is drilled with square or leg-of-mutton cavity at the steel plate middle part.Above-mentioned blade steel skeleton construction is to select by factors such as factory technics condition, solid-to-liquid ratio, blade angle, torsion, can guarantee galassing weighing apparatus, gravity balance.
The preparation process of the double-deck eight oar paddles of the present invention is as follows:
(1) making of blade: at first, carry out twice anticorrosion process after the steel skeleton rust cleaning with arc blade 2 and straight plate blade 3 and process;
Adopt the Multilayer connected mould multi-disc blade of producing once: referring to Figure 12, Figure 13, be respectively the Multilayer connected mould of arc blade 2 and straight plate blade 3, adopt this mould can once make four blades.Be first that reactive phenolic resin, porcelain powder, silica flour, diamond dust inject respectively the bottom of every layer of mould by the mixture of 19.17%, 43%, 12.5%, 25.33% mass percent with anti-corrosion material, by technique layering pressure, then put into steel skeleton, anti-corrosion material reinjects, layering pressure again, the roll extrusion that formalizes, put the membrane separation stereotype plate, the dress connection mode carries out the disjunctor casting again and puts the top positioning module after good, advances in closed equipment insulation to vulcanize;
In vulcanizing treatment at the temperature of 60 ℃ after 36 hours, cooling, loose film, demoulding, finishing again after then adding heat-insulating powder in reactive phenolic resin, oozed the method brushing on blade with heat, vulcanized 24 hours at the temperature of 80 ℃, continuous 7 vulcanizing treatment are to the blade surface light so repeatedly again;
For making the arc blade, with the arc blade open liquid level be blade two sides from the blade afterbody to blade the side, middle part, form unequal oblique angle from the blade middle part to root of blade side and horizontal plane, that is to say, open liquid level before blade namely from the blade tail end to stirring that left surface that axis direction looks comprises from the blade afterbody to blade the side, middle part and from the blade middle part to the root of blade side, two sides all are tilted to the right, with the angle of horizontal plane be respectively 82 and 78; Open liquid level after blade and namely comprise the side, middle part from the blade afterbody to blade from the blade tail end to stirring the right flank that axis direction looks, also be tilted to the right, with the angle of horizontal plane be 85.The upper and lower faces of blade is respectively protruding, recessed cambered surface, and blade thickness is 70mm;
For making straight plate blade, the above and below of blade is the plane, and blade thickness is 75mm, blade open the formation right angle, baseplane that liquid level is blade two sides and blade;
(2) installation of blade: the root of four arc blades that above-mentioned technique is made is installed to by screw on the buttcover plate of wheel hub hub frame of shaft bottom, and make blade with the formed plane of its both sides hemline and horizontal plane inclination 30 degree, open before blade liquid level be in the top, after open liquid level be in the below; The root of four straight plate blades that above-mentioned technique is made is installed to by screw on the buttcover plate of wheel hub hub frame on shaft upper strata, and the baseplane that makes blade is inclined relative to horizontal 30 degree, open before blade liquid level be in the top, after open liquid level be in the below.
(3) runner moulding: root and wheel hub hub frame buttcover plate junction employing antiseptic cement gum at blade are smeared moulding, make between blade root and hub frame seamless, thereby form one the trend shaft thickness by 65 mm to 85 mm to 135 mm gradual changes without the anticorrosion runner of whirlpool liquid; Adopt antiseptic cement gum to smear moulding on the top of blade root and hub frame buttcover plate junction, make between the hub frame on blade root and buttcover plate top seamless, thereby form a circular arc transition face.Wherein, antiseptic cement gum refers to that reactive phenolic resin, acidproof powder filler, curing agent are by the mixture of the mass ratio of 1:1.8:0.02.
(4) the anticorrosion preparation of shaft: shaft adopts the thick-walled pipe of Ф 219mm to make, outside the tube wall of the shaft except wheel hub hub frame is installed, at first stick with paste one deck antiseptic cement gum, form nexine dope mud layer, put again the steel mesh of 2mm, after the steel wire encircling with Ф 2mm, then paste one deck antiseptic cement gum over, strengthening superficial density with the manual polishing of acidproof powder at last, is the outer dope mud layer of 15mm thereby form thickness.Wherein, antiseptic cement gum refers to that reactive phenolic resin, acidproof powder filler, curing agent are by the mixture of the mass ratio of 1:1.8:0.02.
In above-mentioned preparation process, the temperature that in step (1), primary vulcanization was processed 36 hours can be the arbitrary temperature in 60 ℃ ~ 130 ℃; The vulcanizing treatment temperature of 24 hours after demoulding, finishing can be the arbitrary temperature in 80 ℃ ~ 130 ℃, continuous 6 times or 7 times so repeatedly.Open the liquid level i.e. side, middle part and can be respectively unspecified angle 80 ~ 85 and 75 ~ 80 from blade middle part to the angle of root of blade side and horizontal plane from the blade afterbody to blade before the arc blade, open after the arc blade liquid level namely from the blade afterbody to blade in the middle part of the angle of side and horizontal plane can be unspecified angle 83 ~ 87.The thickness of arc blade can be the arbitrary numerical value in 60 ~ 80mm, and the thickness of straight plate blade can be the arbitrary numerical value in 65 ~ 90mm.
In step (2), blade is inclined relative to horizontal with its both sides hemline formed plane and is installed on shaft, and range of tilt angles can be the arbitrary numerical value in 25 ~ 45 degree.
In step (4), shaft can adopt the thick-walled pipe of arbitrary specification in Ф 194 ~ 219mm; The thickness of outer dope mud layer can be in the scope of 13 ~ 15mm.
Can to be reactive phenolic resin, acidproof powder filler, curing agent mix by the mass ratio of 1:1.2 ~ 1.8:0.02 ~ 0.05 antiseptic cement gum described in step (3) and step (4).
In addition, referring to Fig. 4, it is the straight plate blade of two blades, manufacturing process with reference to above-mentioned double-deck eight oar paddles, the two straight plate blades of blade are installed on the bottom of shaft, quaterfoil arc blade is installed on the middle level of shaft, the straight plate blade of quaterfoil is installed on the upper strata of shaft, thereby forms three layer of ten oar paddle.
Claims (5)
1. large anticorrosion erosion paddle, comprise shaft, stirrer paddle and wheel hub, and stirrer paddle comprises the anti-corrosion material that is shaped based on the steel skeleton of blade form and parcel steel skeleton, and steel skeleton is connected with the buttcover plate of wheel hub by screw; Stirrer paddle or be respectively the arc blade of convex-concave cambered surface for upper and lower surface, or be the straight plate blade on plane for the above and below; It is characterized in that:
Described arc blade thickness range is 60 ~ 80mm; During the blade horizontal positioned blade open liquid level blade two sides from the blade afterbody to blade the side, middle part, form unequal oblique angle from the blade middle part to root of blade side and horizontal plane: open before blade liquid level from the blade tail end to stir that left surface that axis direction looks comprises from the blade afterbody to blade the side, middle part and in the middle part of the blade to the root of blade side, two sides all are tilted to the right, with the angle of horizontal plane be respectively 80 ~ 85 and 75 ~ 80; Open liquid level after blade and namely comprise the side, middle part from the blade afterbody to blade from the blade tail end to stirring the right flank that axis direction looks, also be tilted to the right, with the angle of horizontal plane be 83 ~ 87; Blade is installed on shaft at a slant with the formed plane of its both sides hemline and horizontal plane, open before blade liquid level be in the top, after open liquid level be in the below, range of tilt angles be 25 ~ 45 the degree; The root of blade and wheel hub hub frame buttcover plate junction are seamless, adopt thickness that antiseptic cement gum makes a trend shaft by 65 mm to 85 mm to 135 mm gradual changes without the anticorrosion runner of whirlpool liquid; The top of the root of blade and wheel hub hub frame buttcover plate junction is also seamless, adopts antiseptic cement gum to make the circular arc transition face;
Described straight plate blade thickness range is 65 ~ 90mm; During the blade horizontal positioned, the angle of opening liquid level blade two sides and horizontal plane of blade is 90; Blade is installed on shaft at a slant with its baseplane and horizontal plane, and is identical with the definition of described arc blade, front open liquid level be in the top, after open liquid level be in the below, range of tilt angles be 25 ~ 45 the degree; The root of blade and wheel hub hub frame buttcover plate junction are seamless, adopt thickness that antiseptic cement gum makes a trend shaft by 65 mm to 85 mm to 135 mm gradual changes without the anticorrosion runner of whirlpool liquid; Also seamless between the top of the root of blade and wheel hub hub frame buttcover plate junction, adopt antiseptic cement gum to make the circular arc transition face;
Described shaft adopts the thick-walled pipe of Ф 194 ~ 219mm, and the tube wall of the shaft except wheel hub hub frame is installed is provided with nexine dope mud layer, steel mesh steel wire floor, outer dope mud layer outward successively;
On described shaft or double-deck eight oars are installed, namely bottom is equipped with a four-bladed arc blade, and the upper strata is equipped with a straight plate blade of four-bladed;
On described shaft or three layer of ten oar is installed, namely bottom is equipped with the straight plate blade of two blades, and the middle level is equipped with a four-bladed arc blade, and the upper strata is equipped with a straight plate blade of four-bladed.
2. large anticorrosion erosion paddle according to claim 1, is characterized in that: the steel skeleton of described arc blade or steel plate frame, or steel plate framework of steel reinforcement; When being steel plate frame, be drilled with some circular holes on steel plate; When being the steel plate framework of steel reinforcement, the part that itself and wheel hub buttcover plate are connected by screw is steel plate, one side or what be positioned at this part is all steel plate, and be drilled with some circular holes on steel plate, in addition be bar construction;
The steel skeleton of described straight plate blade is steel plate structure, and being positioned at blade afterbody place at steel plate, to be drilled with afterbody be all the other cavities for the linear limit, circular arc limit, is drilled with square or leg-of-mutton cavity at the steel plate middle part.
3. the preparation method of a large anticorrosion as claimed in claim 1 erosion paddle is characterized in that comprising following process:
(1) making of blade: at first, carry out twice anticorrosion process after the steel skeleton rust cleaning with blade and process;
Adopt the Multilayer connected mould multi-disc blade of producing once: the bottom of first anti-corrosion material being injected every layer of mould, by technique layering pressure, then put into steel skeleton, anti-corrosion material reinjects, layering pressure again, the roll extrusion that formalizes, put the membrane separation stereotype plate, the dress connection mode carries out the disjunctor casting again and puts the top positioning module after good, advances in closed equipment insulation to vulcanize;
Vulcanizing treatment is after 36 hours at the temperature of 60 ℃ ~ 130 ℃, cooling, loose film, demoulding, finishing again, then after adding heat-insulating powder in reactive phenolic resin, ooze the method brushing on blade with heat, vulcanized 24 hours at the temperature of 80 ℃ ~ 130 ℃, continuous 6 ~ 7 vulcanizing treatment are to the blade surface light so repeatedly again;
When making the arc blade, with the arc blade open liquid level be blade two sides from the blade afterbody to blade the side, middle part, form unequal oblique angle from the blade middle part to root of blade side and horizontal plane: open before blade liquid level namely from the blade tail end to stir that left surface that axis direction looks comprises from the blade afterbody to blade the side, middle part and in the middle part of the blade to the root of blade side, two sides all are tilted to the right, with the angle of horizontal plane be respectively 80 ~ 85 and 75 ~ 80; Open liquid level after blade and namely comprise the side, middle part from the blade afterbody to blade from the blade tail end to stirring the right flank that axis direction looks, also be tilted to the right, with the angle of horizontal plane be 83 ~ 87; The blade thickness range is 60 ~ 80mm;
When making straight plate blade, the liquid level of opening of blade is that the angle of blade two sides and horizontal plane is 90; The blade thickness range is 65 ~ 90mm;
(2) installation of blade: be installed to the root of blade on the buttcover plate of the wheel hub hub frame on shaft by screw, and make the arc blade be installed at a slant on shaft with the formed plane of its both sides hemline and horizontal plane, make straight plate blade be installed at a slant on shaft with its baseplane and horizontal plane, open liquid level before blade and be in the top, after open liquid level be in the below, range of tilt angles be 25 ~ 45 the degree;
(3) runner moulding: root and wheel hub hub frame buttcover plate junction employing antiseptic cement gum at blade are smeared moulding, make between blade root and hub frame seamless, thereby form one the trend shaft thickness by 65 mm to 85 mm to 135 mm gradual changes without the anticorrosion runner of whirlpool liquid; Adopt antiseptic cement gum to smear moulding on the top of blade root and hub frame buttcover plate junction, make between the hub frame on blade root and buttcover plate top seamless, thereby form a circular arc transition face;
(4) the anticorrosion preparation of shaft: shaft adopts the thick-walled pipe of Ф 194 ~ 219mm to make, outside the tube wall of the shaft except wheel hub hub frame is installed, at first stick with paste one deck antiseptic cement gum, form nexine dope mud layer, put again the steel mesh of 2mm, after the steel wire encircling with Ф 2mm, then paste one deck antiseptic cement gum over, strengthening superficial density with the manual polishing of acidproof powder at last, is the outer dope mud layer of 13 ~ 15mm thereby form thickness;
(5) making of double-deck eight oars and three layer of ten oar paddle:
The quaterfoil arc blade of above-mentioned technique making is installed on as stated above the bottom of shaft, the straight plate blade of quaterfoil is installed on the upper strata of shaft, thereby forms double-deck eight oar paddles;
The two straight plate blades of blade of above-mentioned technique making are installed on as stated above the bottom of shaft, quaterfoil arc blade are installed on the middle level of shaft, the straight plate blade of quaterfoil is installed on the upper strata of shaft, thereby forms three layer of ten oar paddle.
4. the preparation method of large anticorrosion according to claim 3 erosion paddle is characterized in that: anti-corrosion material described in step (1) refers to that reactive phenolic resin, porcelain powder, silica flour, diamond dust are respectively by the mixture of 19.17%, 43%, 12.5%, 25.33% mass percent; Antiseptic cement gum described in step (3) and step (4) refers to that reactive phenolic resin, acidproof powder filler, curing agent are by the mixture of the mass ratio of 1:1.2 ~ 1.8:0.02 ~ 0.05.
5. the preparation method of according to claim 3 or 4 described large anticorrosion erosion paddles, is characterized in that: when the steel skeleton of the described blade of step (1) is the steel skeleton of arc blade, or adopt steel plate frame, or adopt the steel plate framework of steel reinforcement; When adopting steel plate frame, bore some circular holes on steel plate; When adopting the steel plate framework of steel reinforcement, the part that itself and wheel hub buttcover plate are connected by screw adopts steel plate, or is positioned at one side employing steel plate of this part, and bores some circular holes, employing bar construction in addition on steel plate;
When the steel skeleton of the described blade of step (1) is the steel skeleton of straight plate blade, employing be steel plate structure, and being positioned at blade afterbody place at steel plate, to bore afterbody be all the other cavities for the linear limit, circular arc limit, in the square or leg-of-mutton cavity of steel plate drilled in middle.
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| CN103386265A (en) * | 2012-05-11 | 2013-11-13 | 四川汇利实业有限公司 | Multilayer stirring system |
| CN104971654A (en) * | 2015-06-11 | 2015-10-14 | 柳州美纳机械有限公司 | Rubber combined stirrer |
| CN105126693B (en) * | 2015-07-09 | 2017-09-05 | 李兴国 | Long angle arc swirling flow anti-corrosion blade and long angle arc swirling flow anti-corrosion agitating paddle |
| CN104984686B (en) * | 2015-07-23 | 2017-03-15 | 江苏鑫复特环保科技有限公司 | A kind of high temperature resistant, stirring paddle of high concentrated acid and preparation method thereof |
| CN105521740B (en) * | 2015-12-17 | 2018-02-13 | 河南理工大学 | Composite stirring leaf and preparation method thereof, installation method and mixer |
| CN109000048B (en) * | 2018-02-02 | 2023-10-24 | 上海神农节能环保科技股份有限公司 | TVR evaporator combined type anti-deposition chemical raw material conveying pipeline |
| CN109763001A (en) * | 2019-03-20 | 2019-05-17 | 金川集团股份有限公司 | A kind of eccentric stirring exchanger cell removing zinc for nickel hydroxide cobalt salt acid leaching liquor ion |
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| CN201676651U (en) * | 2009-03-10 | 2010-12-22 | 吴民权 | Efficient energy-saving glass lined stirring paddle |
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