CN100467134C - Conical spiral nozzle, its production and mould thereof - Google Patents
Conical spiral nozzle, its production and mould thereof Download PDFInfo
- Publication number
- CN100467134C CN100467134C CNB2006100389532A CN200610038953A CN100467134C CN 100467134 C CN100467134 C CN 100467134C CN B2006100389532 A CNB2006100389532 A CN B2006100389532A CN 200610038953 A CN200610038953 A CN 200610038953A CN 100467134 C CN100467134 C CN 100467134C
- Authority
- CN
- China
- Prior art keywords
- nozzle
- spiral nozzle
- conical spiral
- mold
- spiral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A conic spiral sprayer is a molded polyurethane elastomer with high toughness, strength, and anticorrosion, antiscaling and self-cleaning performance, so it can not be blocked by scale.
Description
Technical field
The present invention is to applicant's Chinese patent 02112991.6 and 200420027147.1 further developing and improving the preceding, relate in particular to a kind of long service life, anti-fouling tendency is good, and moulding is simple, conical spiral nozzle that production efficiency is high and preparation method and mould.
Background technology
Conical spiral nozzle is applied in many occasions, is especially paid attention to especially in the bigger flue dust wet type desulfurizing of Coal-fired capacity.Originally used the metal material conical spiral nozzle, there are some deficiencies that are difficult to overcome in the metal shower nozzle always, and the applicant improves it for this reason, has proposed as described in the Chinese patent 02112991.6, adopts pottery to make conical spiral nozzle.Though the pottery conical spiral nozzle has overcome the deficiency of metal shower nozzle, becomes metal shower nozzle ideal substitute, the actual use through several years finds to still have many deficiencies to need to improve.
For example, ceramic shower nozzle is owing to there are some inherent defects in the material reason: for example toughness is relatively poor, and fragility is bigger, causes shock resistance relatively poor, all causes the damaged and fracture of shower nozzle in transportation, installation and use easily because of collision; Secondly, impact strength is poor, and especially at the water hammer of spray liquid preliminary stage generation, greater impact power can cause the broken end of shower nozzle to damage.Shower nozzle often damages, and needs to shut down to change, and can influence normally carrying out of desulfurization again.Besides, shower nozzle is in long-time use, scale forming matter in the spray liquid (for example calcium sulfate) can produce the crystallinity fouling at the shower nozzle runner, because ceramic shower nozzle is the rigidity distortion that lacks flexibility, fouling can not come off voluntarily, and fouling accumulation for a long time can cause the shower nozzle runner to diminish, and reduces the spray effect, seriously can cause shower nozzle to stop up loss of function.In addition, though pottery has wearability preferably, because of being mingled with relatively large matter grit in the desulfurization spray liquid, still very easily wearing and tearing are generally used about 1 year and just must be changed in the use, and still fall short of service life.Pottery shower nozzle alkaline resistance properties is relatively poor, is not suitable for using in alkaline medium, thereby has limited the scope of application.
In addition, because the conical spiral nozzle shape is special-shaped complicated, the unique injection forming of selecting for use of forming process of ceramics need, sintering twice firing cured through taking off, and long-acting rate of production cycle is not high; Especially in processing and manufacturing and sintering process, damage and the conveyor screw distortion, yield rate is lower, especially it is extremely low to burn till yield rate, general yield rate less than 70%, big specifications and models (for example the shower nozzle bore 50mm or more than) yield rate less than 50%, above-mentioned reason makes manufacturing cost higher.As the conveyor screw width improves intensity between spray cistern by increasing, the spiral spray cistern number of turns is reduced, so not only spray cistern sews minimizing, and the spray cistern spacing increases, can cause the serious inhomogeneous and layering distortion of spraying, spray mist formation performance reduces, and influences practical effect.
At the problems referred to above, the applicant once improved it, as described in Chinese patent CN200420027147.1, proposition is provided with the conveyor screw back-up block in nonmetal shower nozzle spray cistern, strengthen shower nozzle conveyor screw strength and stiffness with this, improve fabrication yield, reduce use in deficiency such as fracture.But not only aforementioned some shortcoming is objective reality still also, is not improved and overcomes because of increasing the conveyor screw back-up block; And back-up block is set in spray cistern, and also can sacrifice pulverability, equally also can influence the spray effect; In addition, same shower nozzle spray angle is for immobilizing, and it is overlapping and do not have gap umbrella mist hat to be unfavorable for forming the mist hat yet, and unit spraying area water consumption is big.
The 4th phase of " Light Engineering Institutes Of Zhengzhou's journal " 97 year December, make concrete sprayer shower nozzle report though there is report to adopt casting type polyurethane to substitute General Purpose Rubber, to improve shower nozzle service life, but because the concrete sprayer shower nozzle is bigger with the conical spiral nozzle architectural difference that forms the water smoke hat, and the relatively poor relatively reason of polyurethane rigidity, people also fail to inspire and are used for alternative metals shower nozzle or ceramic shower nozzle, more do not expect utilizing its suitable resilience, solve the shower nozzle scale problems.
Therefore so far, though the technical staff understands fully aware of to the defective of conical spiral nozzle in manufacturing and use, and it is also very urgent to improve mood, but owing to be subjected to placing restrictions on of specialty and the scope of one's knowledge, so far the someone can make better improvement, causes two kinds of spiral nozzles that in fact still have only the applicant to propose.And seek a kind of better existing excellent comprehensive performance, and there is preferably the processes material make conical spiral nozzle simultaneously again, overcome the defective of objective reality, become that the technical staff wants to solve and unsolved mystery always in the industry.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned prior art, provide a kind of wear-resisting, corrosion resistant is good, good toughness, intensity height, long service life, and make simple, the production efficiency height, cost is low, especially resistive connection dirt and from the clear good conical spiral nozzle of property.
Another object of the present invention is to provide a kind of preparation method of above-mentioned conical spiral nozzle.
A further object of the present invention is to provide a kind of mould of making above-mentioned conical spiral nozzle.
The present invention's first purpose realizes, the main improvement is through a large amount of experiment sievings, select to adopt the casting type polyurethane material to make shower nozzle, and at least in the polyurethane sprayer body inner liner metal helix core strengthen, make the gained shower nozzle can overcome the deficiencies in the prior art, realize the object of the invention, and become present optimal conical spiral nozzle.Specifically, conical spiral nozzle of the present invention, the conical spiral nozzle that includes alternate spray groove be connected base portion, it is characterized in that the conical spiral nozzle body is a casting type polyurethane elastomer at least, in be lined with the metal spiral core, spiral spray groove upstream face and axis angle increase to base portion from the shower nozzle pointed cone.
Conical spiral nozzle of the present invention can be that shower nozzle all (comprises and connects base portion) by the casting type polyurethane making, also can be only to be that the conical spiral nozzle body is made by the casting type polyurethane material, connects the mixed structure that base portion also can adopt metal to make.
Described metal spiral core for example can adopt wire or bonding jumper to make the inner core that dwindles with the conveyor screw similar shape.
Shower nozzle spiral spray groove upstream face and axis angle, increase to base portion from the shower nozzle pointed cone, pointed cone portion is for example 15 ° of little angles, do not hold most spiral spray groove upstream face to be for example 50 ° of mitres, the crown one-tenth of shower nozzle ejection mist is not overlapping does not so have gap umbrella mist hat yet and distributes, can obtain good gas, water contact mixed effect, also help using water wisely.
Conical spiral nozzle spiral of the present invention spray groove upstream face can be plane (being 90 ° with axis) according to the mist formation needs, but wherein especially to be cone angle (for example 15-50 °) for well with axis.By the different angles of design spray groove upstream face, can obtain the umbrella mist hat of different angles with axis.
Casting type polyurethane of the present invention can adopt existing commercially available casting type polyurethane material (performed polymer and chain extender), and the match ratio of performed polymer and chain extender is determined by NCO% free acid cyanogen ammonia content calculating in the common base polyurethane prepolymer for use as, has no special requirements.For making shower nozzle can adapt to for example 100-150 ℃ in higher temperature medium, and better wear resistance arranged, the present invention is a kind of to be preferably employing and to obtain performed polymer by pla-pcl and isocyanate reaction, add and to account for the 7.5-30wt% of performed polymer total amount and to comprise 1 at least, the compound chain extender chain extension curing urethane that 4-butanediol, quinhydrones-two (beta-hydroxyethyl) ether and resorcinol-two (beta-hydroxyethyl) ether are three kinds; In addition, be to improve the acid resistance of shower nozzle, the used performed polymer of polyurethane shower nozzle, can adopt ε-caprolactone and 4,4 '-methyl diphenylene diisocyanate (MDI) or toluene di-isocyanate(TDI) (TDI) polymerization.
The preparation of polyurethane conical spiral nozzle of the present invention is characterized in that will forming respectively the performed polymer heating of polyurethane elastomer, and chain extender is heated to fusion, the shower nozzle casting mold is heated to and expects that temperature is roughly approaching; The performed polymer and the chain extender of heating are fully mixed, and pouring into a mould and filling has a conical spiral nozzle type cavity mould, heating cure, sulfuration in heating.
If adopt the synthetic performed polymer of pla-pcl and isocyanate reaction, chain extending reaction then adopts and accounts for performed polymer total amount 7.5-30wt%'s, and at least by 1, the 4-butanediol (1,4-BD), quinhydrones-two (beta-hydroxyethyl) ether (HOEE) and resorcinol-three kinds of compound chain extenders of two (beta-hydroxyethyl) ether (HER).Wherein a kind of chain extender that is more preferably divides secondary to add at least, adds chain extender total amount 10-30wt% and comprises 1 at least for the first time, and the 4-butanediol adds remaining one or more chain extenders for the second time, and chain extending reaction was finished in 1 minute greatly.The amount ratio of described pla-pcl and isocyanates, similar with common preparation casting type polyurethane performed polymer, have no special requirements.
Moulding by casting of the present invention can be normal pressure cast, pressure casting, vacuum pouring, rotary casting etc., for increasing shower nozzle polyurethane density, further improve anti-wear performance, the present invention better adopts pressure casting, i.e. behind the full mold cavity of cast, pressurization makes and waters the material feeding compression again.
Polyurethane conical spiral nozzle casting mold of the present invention, the internal mold, the external mold that comprise coaxial fit, it is characterized in that said inside and outside mold forming face is and the taper of shower nozzle similar shape, between inside and outside mold forming face the moulding helix core is arranged, spiral core rod moulding spray groove upstream face and axis angle increase to the base portion gradual change from the shower nozzle pointed cone.
Between the said inside and outside mold forming face of the present invention the moulding helix core is arranged, two kinds of basic structure forms can be arranged: a kind ofly separate with inside and outside mould for tapered spiral core rod, be that internal mold male cone (strobilus masculinus) and spiral nozzle inner conical surface coincide, external mold inner conical surface and spiral nozzle male cone (strobilus masculinus) coincide, and the inside and outside intermode of fit has tapered spiral core rod; A kind ofly directly be arranged on the interior or outer die face for tapered spiral core rod, promptly in the external mold conical surface coincide, wherein internal mold outer peripheral face or external mold inner peripheral surface are processed with tapered helical groove, and external mold adopts the distinguish combining structure at least.If the internal mold outer peripheral face is processed with tapered helical groove,, conveniently stripped internal mold fills out core explanation combining structure for adopting hollow.
Moulding conical spiral nozzle spiral spray groove upstream face and axis angle, its processing mode, a kind of better is to be processed with and axis angle at spiral core rod moulding spray groove upstream face, 15-50 ° of angle for example, the moulding shower nozzle can no longer need to process separately spreading of spray like this, has omitted the following process workload.
For guaranteeing the concentric fit of mould, mold base is provided with one or some concentric locating rings.
In addition, for adapting to pressure casting, said die feeding mouth has the outer chamber that connects material outward.
Mold materials of the present invention has no special requirements, and metal, nonmetal, pottery etc. are all passable.
Conical spiral nozzle of the present invention because conveyor screw adopts polyurethane to make at least, and at least in the sprayer body inner liner metal helix core strengthen, thereby overcome the deficiency of prior art metal and ceramic shower nozzle, have good toughness, intensity height, not easily broken, have fabulous transportation, installation capability; Can guarantee that shower nozzle uses in higher hydraulic pressure, strong shock resistance is not subject to impact of water hammer and damages, long service life, wearability is more excellent, and test is on-line velocity 8m/s, solid content 15% relatively, feed liquid is impacted wear-resisting more ceramic shower nozzle and is improved 3-4 doubly, and pulverability is kept; Corrosion resistant is good, especially can use in alkaline medium, has enlarged the scope of application; Spiral spray groove upstream face increases to base portion from the shower nozzle pointed cone with axis angle, and the crown one-tenth of ejection mist is not overlapping not to be had gap umbrella mist hat yet and distribute, and can obtain good gas, water contacts mixed effect, also helps using water wisely.Shower nozzle manufacturing of the present invention is simple, produces efficient and yield rate height in batches, and cost is low, has only about 1/4 of ceramic shower nozzle; Especially its micro-elasticity that has, not only the crystallization fouling is difficult to form, even produce fouling, because shower nozzle trace elongation strain, can cause being bonded in the runner inner surface does not have the layer of scale of dilatation and shower nozzle to produce morphotropism loosening yet, can come off voluntarily under water impact, thereby resistive connection dirt and self-cleaning is good yet, thoroughly having solved a shower nozzle professional difficult problem---fouling is stopped up, and has effectively guaranteed use steady in a long-term; Pla-pcl performed polymer material has improved the shower nozzle serviceability temperature especially, can guarantee normally to use under 100-150 ℃ of temperature; ε-caprolactone performed polymer makes the shower nozzle acid resistance have greatly and improves, can tolerate P-levels acid, fluosilicic acid and concentration is the sulfuric acid below 50%.
Below in conjunction with several non-limiting specific embodiment, further specify the present invention.
Description of drawings
Fig. 1 is a kind of flanged connection spiral nozzle profile schematic diagram of the present invention.
Fig. 2 is for showing inner liner metal strengthening core spiral nozzle schematic diagram.
Fig. 3 is Fig. 2 A-A schematic cross-section.
Fig. 4 is for showing the another kind of spiral nozzle schematic diagram of inner liner metal strengthening core.
Fig. 5 is metal-cored schematic diagram for Fig. 2 strengthens.
Fig. 6 is metal-cored schematic diagram for Fig. 4 strengthens.
Fig. 7 is internal mold, external mold, one-tenth core trisome assembling die schematic diagram.
Fig. 8 is Fig. 7 external mold schematic diagram.
Fig. 9 is Fig. 7 spiral core rod schematic diagram.
Figure 10 is Fig. 7 internal mold schematic diagram.
Figure 11 is another kind of mould structure schematic diagram.
Figure 12 has enhancing to fill out core casting mold schematic diagram for a kind of.
The specific embodiment
Embodiment 1: no inner liner metal core casting type polyurethane conical spiral nozzle.Processing and the identical taper internal mold 7 (Figure 10) of spiral nozzle inner conical surface respectively, the external mold 5 (Fig. 8) that inner conical surface and spiral nozzle male cone (strobilus masculinus) coincide, spiral core rod 6 (Fig. 9), the coaxial fit of three is combined into casting mold (Fig. 7), and is provided with concentric locating ring 8 and 9 integrated positionings at the big openend of mould (base portion).Respectively polyether-type PTMG casting type polyurethane performed polymer is heated to 100 ℃; MOCA chain extender (3,3 '-two chloro-4,4 '-MDA) is heated to 120 ℃ and is made its fusion; Die assembly is heated to about 100 ℃.Base polyurethane prepolymer for use as after will heating then and chain extender (consumption press in the base polyurethane prepolymer for use as NCO% free acid cyanogen ammonia content calculate determine) mix, and the band temperature is injected by the top pouring mouth and filled the heating mould die cavity; Cast finishes and is with mould to heat 100 ℃ through 1-2 hours curing moldings, after the demoulding, through 80-105 ℃ of sulfuration 20-30 hours, obtains polyurethane conical spiral nozzle 1 again.
Embodiment 2: casting mold can also adopt the structure as Figure 11, the interior external mold conical surface identical (wherein internal mold male cone (strobilus masculinus) and spiral nozzle inner conical surface coincide), the external mold inner conical surface is processed with the spiral forming groove 10 with shower nozzle spiral similar shape, and external mold adopts vertical distinguish combining structure.
Embodiment 3: inner liner metal core casting type polyurethane conical spiral nozzle.As described above 1, referring to Figure 12, in the assembling die helical groove, add inner liner stainless steel spiral core rod 3 (Fig. 5,6), can obtain having polyurethane conical spiral nozzle 1 as (Fig. 2, Fig. 4) of inner liner metal core.
Embodiment 4: as described above, with mould spiral core rod moulding spray groove upstream face, be processed into axis angle and increase according to gradual change to base portion from the shower nozzle pointed cone, can obtain having the shower nozzle that the 4 angle gradual changes of spray groove upstream face increase.
Embodiment 5: as described above, the cast polyurethane performed polymer is by pla-pcl and isocyanates (MDI) polymerization gained, the compound chain extender that adds performed polymer total amount 13%, wherein add for the first time 1 of chain extension dosage 12%, 4-butanediol, 3.6% trimethylolpropane add quinhydrones-two (beta-hydroxyethyl) ether (HOEE) of 59.4% and resorcinol-two (beta-hydroxyethyl) ether of 25% for the second time, finish stirring reaction in one minute, inject mould.Can obtain serviceability temperature and can reach 130 ℃, the better polyurethane spiral nozzle of wearability.
Embodiment 6: as embodiment 1-3, poly-ammonia join performed polymer adopt ε-caprolactone and 4,4 '-methyl diphenylene diisocyanate (MDI) polymerization.The gained shower nozzle can tolerate P-levels acid, fluosilicic acid and concentration are the sulfuric acid below 50%.
Embodiment 7: as embodiment 1-3, poly-ammonia is joined performed polymer and is adopted ε-caprolactone and toluene di-isocyanate(TDI) (TDI) performed polymer, chain extender employing 3,3 '-two chloro-4,4 '-the diphenyl methane diamines.The gained shower nozzle can tolerate P-levels acid, fluosilicic acid and concentration are the sulfuric acid below 50%.
Press the polyurethane prior art, adjust isocyanates and/or chain extender consumption, can obtain different hardness polyurethane spiral nozzle.
Claims (15)
1, conical spiral nozzle, the conical spiral nozzle that includes alternate spray groove be connected base portion, it is characterized in that the conical spiral nozzle body is a casting type polyurethane elastomer at least, in be lined with the metal spiral core, spiral spray groove upstream face and axis angle increase to base portion from the shower nozzle pointed cone.
2,, it is characterized in that shower nozzle spiral spray groove upstream face and axis angle are 15-50 ° according to the described conical spiral nozzle of claim 1.
3, according to claim 1 or 2 described conical spiral nozzles, it is characterized in that polyurethane is by pla-pcl and isocyanates polymerization performed polymer, with account for performed polymer total amount 7.5-30wt% and comprise 1 at least, three kinds of compound chain extender chain extensions of 4-butanediol, quinhydrones-two (beta-hydroxyethyl) ether and resorcinol-two (beta-hydroxyethyl) ether solidify and form.
4, according to the described conical spiral nozzle of claim 3, it is characterized in that base polyurethane prepolymer for use as by ε-caprolactone and 4,4 '-methyl diphenylene diisocyanate or toluene di-isocyanate(TDI) polymerization.
5, according to the described conical spiral nozzle preparation method of claim 1, it is characterized in that will forming respectively the performed polymer heating of polyurethane elastomer, chain extender is heated to fusion, the shower nozzle casting mold is heated to and expects that temperature is roughly approaching; The performed polymer and the chain extender of heating are fully mixed, and pouring into a mould and filling has a conical spiral nozzle type cavity mould, heating cure, sulfuration in heating.
6, according to the described conical spiral nozzle preparation method of claim 5, it is characterized in that performed polymer is polymerized by pla-pcl and isocyanates, chain extending reaction adopts and accounts for performed polymer total amount 7.5-30wt%, and comprise 1 at least, 4-butanediol, quinhydrones-two (beta-hydroxyethyl) ether and resorcinol-three kinds of compound chain extenders of two (beta-hydroxyethyl) ether.
7, according to the described conical spiral nozzle preparation method of claim 6, it is characterized in that chain extender divides secondary to add at least, for the first time add chain extender total amount 10-30wt% and comprise 1 at least, the 4-butanediol, for the second time add remaining one or more chain extenders, and chain extending reaction was finished about 1 minute greatly.
8, according to the described conical spiral nozzle casting mold of claim 1, the internal mold, the external mold that comprise coaxial fit, it is characterized in that said inside and outside mold forming face for the taper of shower nozzle similar shape, between inside and outside mold forming face the moulding helix core is arranged, spiral core rod moulding spray groove upstream face and axis angle increase to the base portion gradual change from the shower nozzle pointed cone.
9, described according to Claim 8 conical spiral nozzle casting mold is characterized in that internal mold male cone (strobilus masculinus) and spiral nozzle inner conical surface coincide, and external mold inner conical surface and spiral nozzle male cone (strobilus masculinus) coincide, and the inside and outside intermode of fit has tapered spiral core rod.
10, described according to Claim 8 conical spiral nozzle casting mold, the external mold conical surface coincide in it is characterized in that, and wherein internal mold outer peripheral face or external mold inner peripheral surface are processed with tapered helical groove, and external mold adopts the distinguish combining structure at least.
11,, it is characterized in that the external mold inner peripheral surface is processed with tapered helical groove according to the described conical spiral nozzle casting mold of claim 10.
12, according to Claim 8,9,10 or 11 described conical spiral nozzle casting molds, it is characterized in that having metal spiral to fill out core in the spiral core rod groove.
13, according to Claim 8,9,10 or 11 described conical spiral nozzle casting molds, it is characterized in that spiral core rod moulding spray groove upstream face and axis are 15-50 ° of angle.
14, according to Claim 8,9,10 or 11 described conical spiral nozzle casting molds, it is characterized in that mold base has the concentric locating ring.
15, according to Claim 8,9,10 or 11 described conical spiral nozzle casting molds, it is characterized in that the die feeding mouth has the outer chamber that connects material outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100389532A CN100467134C (en) | 2006-03-20 | 2006-03-20 | Conical spiral nozzle, its production and mould thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100389532A CN100467134C (en) | 2006-03-20 | 2006-03-20 | Conical spiral nozzle, its production and mould thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1817477A CN1817477A (en) | 2006-08-16 |
| CN100467134C true CN100467134C (en) | 2009-03-11 |
Family
ID=36917795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100389532A Expired - Fee Related CN100467134C (en) | 2006-03-20 | 2006-03-20 | Conical spiral nozzle, its production and mould thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100467134C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324820A (en) * | 2014-09-30 | 2015-02-04 | 成都市翻鑫家科技有限公司 | Cooling liquid nozzle |
| CN108722693B (en) * | 2018-07-31 | 2023-10-03 | 太仓市宇格明叶环保设备有限公司 | PP spiral nozzle for exhaust gas treatment system and spraying method thereof |
| DE102019200212A1 (en) * | 2019-01-10 | 2020-07-16 | Lechler Gmbh | Process for producing a negative mold for a spiral nozzle, spiral basic mold positive and spiral nozzle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5358179A (en) * | 1993-08-18 | 1994-10-25 | The Procter & Gamble Company | Atomization systems for high viscosity products |
| CN1390648A (en) * | 2002-05-06 | 2003-01-15 | 蒋龙福 | Conic spiral sprayer for desulfurizing and dusting and its making methd and mould |
| CN2714157Y (en) * | 2004-05-11 | 2005-08-03 | 蒋龙福 | Improved conical spiral non-metal spray head |
| CN2882799Y (en) * | 2006-03-20 | 2007-03-28 | 蒋龙福 | Conic spiral sprayer head |
-
2006
- 2006-03-20 CN CNB2006100389532A patent/CN100467134C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5358179A (en) * | 1993-08-18 | 1994-10-25 | The Procter & Gamble Company | Atomization systems for high viscosity products |
| CN1390648A (en) * | 2002-05-06 | 2003-01-15 | 蒋龙福 | Conic spiral sprayer for desulfurizing and dusting and its making methd and mould |
| CN2714157Y (en) * | 2004-05-11 | 2005-08-03 | 蒋龙福 | Improved conical spiral non-metal spray head |
| CN2882799Y (en) * | 2006-03-20 | 2007-03-28 | 蒋龙福 | Conic spiral sprayer head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1817477A (en) | 2006-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100467134C (en) | Conical spiral nozzle, its production and mould thereof | |
| KR101570402B1 (en) | A fabricated most water-saving toilet made of novel thermoplastic resin compound material and a preparation method thereof | |
| CN102408677B (en) | SiC/epoxy resin composite material and method for manufacturing pump components with it | |
| CN100391650C (en) | Cold core | |
| CN202147227U (en) | Grinding wheel special for grinding soft metal | |
| CN100424031C (en) | High compact bidirectionally adjustable concrete and its uses | |
| CN2882799Y (en) | Conic spiral sprayer head | |
| CN109400060A (en) | Concrete square brick and preparation method thereof | |
| CN218138983U (en) | Durable type trucd mixer chute | |
| CN111231051A (en) | Shield segment production process with corrosion resistance and shear resistance functions | |
| CN1215035A (en) | Artificial marble products and making method thereof | |
| CN109453908B (en) | Spiral nozzle manufacturing process | |
| CN203198043U (en) | Molding device for abrasion-proof bushing of blast tuyere of blast furnace | |
| CN205716070U (en) | Organic composite earthenware | |
| CN101638520A (en) | Ceramic polymer-material wear-resistant anticorrosion composite pipe and manufacturing method thereof | |
| CN205859381U (en) | Steel-lined rubber earthenware duct | |
| CN201808127U (en) | Water permeable brick combined mold | |
| CN104690222A (en) | High-strength wear-resistant roller production technology | |
| CN100395451C (en) | Method for producing oil pump plunger | |
| CN112813792A (en) | Method for reinforcing arch bridge by combination of UHPC injection and bar planting | |
| CN209943076U (en) | Diameter-variable pipeline for inlet and outlet of wet desulphurization slurry circulating pump | |
| CN201151225Y (en) | Chute prefabricated by wear resistant ceramic composite paster | |
| CN207028087U (en) | A kind of bottle base mould is wear-resisting to repair die lip | |
| CN111389520A (en) | Grinding roller of vertical mill and production method thereof | |
| CN2921526Y (en) | High impact resisting liner ceramic composite bend |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20100320 |