CN101825111A - Wear resistant fan - Google Patents
Wear resistant fan Download PDFInfo
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- CN101825111A CN101825111A CN201010301423A CN201010301423A CN101825111A CN 101825111 A CN101825111 A CN 101825111A CN 201010301423 A CN201010301423 A CN 201010301423A CN 201010301423 A CN201010301423 A CN 201010301423A CN 101825111 A CN101825111 A CN 101825111A
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- wear resistant
- alloy
- impeller assembly
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Abstract
The invention relates to a wear resistant fan which comprises a case, an impeller assembly, a front cover plate, a rear cover plate and a driving shaft; the case and the impeller assembly are respectively made of double metal complex layer wear resistant steel sheets; each double metal complex layer wear resistant steel sheet is a wear resistance plate product which takes a base material as a matrix and is manufactured from a composite wear resistant layer through an overlaying welding method; the base material is selected from common carbon steel, low-alloy steel or stainless steel; and the wear resistant layer is an alloy which takes a high-hardness metal carbon-boron compound as the hard reinforced phase. The case and the impeller assembly are manufactured through a surface wear resistant overlaying welding technology, the surface of an overlaying welding layer is smooth and uniform, so as to ensure dynamic balance and the stability of a flow field. By adopting the wear resistant structure, the wear resistant fan strengthens the wear resistant capability of an overflow surface, effectively prolongs the service life by 2 to 3 times, has reasonable structure and simple manufacturing process, and is particularly suitable to be a blower of a cement production line.
Description
Technical field
The present invention relates to a kind of blower fan, specifically a kind of wear resistant fan.
Background technique
We know, present stage China's technology of producing cement near international most advanced level, the dry cement production line of daily output more than 5000 tons puts into production in a large number.Cement produced with the dry method production has two links to be unable to do without blower fan: the one, gather dust, and the 2nd, the pneumatic powder that selects.Investigation shows: the fan life that use on these two links in domestic many cement plants is all undesirable, and under extreme case, draught fan impeller lost dynamic balancing in 7～10 days, and casing 15～20 days is worn out.The blower fan that uses under this occasion, its inefficacy main cause are the erosive wear that cement slurry that gas is carried secretly or grog powder cause.
At present, of home make blower fan selects for use common low carbon steel plate or low-carbon and low-alloy steel plate to make impeller or casing usually.This is that restriction by its work characteristics and classical production process is determined.On the one hand, the working speed of blower is that rotary inertia is very big, requires the manufactured materials of impeller to have enough toughness more than 1400 commentaries on classics; On the other hand, wheel member is to use welding procedure that blade, wheel hub and forward and backward dish assembly welding are formed together, requires material to have good weldability, generally avoids adopting the steel with the tendency of quenching.As everyone knows, the wear-resistant ability of common low carbon steel plate or low-carbon low-alloy steel a little less than, therefore, under the bigger occasion of dust loading, work, working life is extremely undesirable.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, provides a kind of structure reasonable, and manufacturing process is simple, resistance to wears the wear resistant fan of long service life.
The technological scheme that the present invention solves the problems of the technologies described above employing is: a kind of wear resistant fan, it includes casing, the impeller assembly, front shroud, back shroud, live axle, casing is provided with intake grill and exhaust outlet, the bottom is provided with supporting leg, the impeller assembly is by blade, wheel hub and shroud, hub disk is formed, it is characterized in that: casing and impeller assembly are made by the multiple layer of bimetal wear-resisting steel plate respectively, the multiple layer of bimetal wear-resisting steel plate is to be the wearable plate goods that matrix is made by overlaying method complex abrasion-proof layer with the mother metal, said mother metal is selected Ordinary Steel for use, the low-alloy steel or stainless steel, wearing layer be a kind of be the alloy of hard hardening constituent with high hardness metal carbon-boron compound, alloy is specifically formed content (weight %) and is: C 0.8-5, Cr 9-30, Nb 0.3-9, V 0.1-2, Mo0.3-5, B0.2-5, Ni 0.5-6, rare earth compound 0.01-2, surplus is Fe.Rare earth can be selected compound or the alloy of cerium Ce, yttrium Y etc. for use.
Casing of the present invention and impeller assembly are made by the multiple layer of bimetal wear-resisting steel plate respectively, and the multiple layer of a bimetal wear-resisting steel plate then is to make by the hard facing technology, and overlay cladding surface smoothing, evenly is enough to guarantee the stability in dynamic balancing and flow field.Against existing technologies, the present invention improves its working life by the abrasive resistance on intensifying, overflowing surface, improves 23 times of life-spans.The present invention constructs rationally, and manufacturing process is simple, and the blower that is particularly suitable for the making cement production line is used.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the schematic cross-section of Fig. 1.
1. casings among the figure, 2. back shroud, 3. intake grill, 4. front shroud, 5. impeller assembly, 6. live axle.
Embodiment
From Fig. 1, Fig. 2 as can be seen, a kind of wear resistant fan of the present invention, it includes casing 1, impeller assembly 5, front shroud 4, back shroud 2, live axle 6, casing 1 is provided with intake grill 3 and exhaust outlet, the bottom is provided with supporting leg, and impeller assembly 5 is formed by blade, wheel hub and shroud, hub disk assembly welding together.Blade is an involute shape, is arranged between shroud, the hub disk.
Characteristics of the present invention are: casing 1 and impeller assembly 5 are made by the multiple layer of bimetal wear-resisting steel plate respectively, and the multiple layer of bimetal wear-resisting steel plate is to be the wearable plate goods that matrix is made by overlaying method complex abrasion-proof layer with the mother metal.Said mother metal can be selected Ordinary Steel, low-alloy steel or stainless steel as required for use, under the condition, mainly provides mechanical performance index such as intensity, toughness under arms, resists external active force; Surface wear-resistant layer mainly provides the abrasion resistance properties index, and two kinds of materials are born different task separately, the performance optimum performance.Owing to there is mother metal to resist external active force, surface recombination wearing layer alloy can take into full account wear resistance, realizes hypereutectic tissue, utilizes the high micro-penetration hardness of a precipitated phase to improve wear-resisting property.The surface recombination wearing layer be a kind of be the alloy of hard hardening constituent with high hardness metal carbon-boron compound.Wear resistant alloy material is the wear-resistant alloy material of iron-based, is main alloy element with Nb, V, Mo, Cr, B, rare earth etc., is main hard hardening constituent with the carbon-boron compound of chromium.Rare earth can be selected compound or the alloy of cerium Ce, yttrium Y etc. for use.The concrete composition content (weight %) of alloy is: C0.8-5, Cr 9-30, Nb 0.3-9, V0.1-2, Mo0.3-5, B0.2-5, Ni 0.5-6, rare earth compound 0.01-2, surplus are Fe.As everyone knows, determined by the lattice structure characteristic, the micro-penetration hardness of metal boride, general all apparently higher than the carbide of metal of the same race, therefore, the wear resistance of this surface recombination wearing layer alloy is better than existing high-chromium cast iron alloy greatly.Micro-penetration hardness 〉=the HV2600 of the main hard phase of surface recombination wearing layer alloy of the present invention is higher than the micro-penetration hardness HV2200 of Al2O3, and its matrix is moderate alloy martensite of micro-penetration hardness and boride eutectic.Matrix combines with hard firmly, and overlay cladding and mother metal are metallurgy combination.
Casing of the present invention and impeller assembly are made by the hard facing technology, and overlay cladding surface smoothing, evenly is enough to guarantee the stability in dynamic balancing and flow field.The present invention is by adopting wear-resistant structure, and the abrasive resistance on intensifying, overflowing surface has prolonged working life of blower fan effectively, improves life-span 2-3 doubly.The present invention constructs rationally, and manufacturing process is simple, and the blower that is particularly suitable for the making cement production line is used.
Claims (1)
1. wear resistant fan, it includes casing, the impeller assembly, front shroud, back shroud, live axle, casing is provided with intake grill and exhaust outlet, the bottom is provided with supporting leg, the impeller assembly is by blade, wheel hub and shroud, hub disk is formed, it is characterized in that: casing and impeller assembly are made by the multiple layer of bimetal wear-resisting steel plate respectively, the multiple layer of bimetal wear-resisting steel plate is to be the wearable plate goods that matrix is made by overlaying method complex abrasion-proof layer with the mother metal, said mother metal is selected Ordinary Steel for use, the low-alloy steel or stainless steel, wearing layer be a kind of be the alloy of hard hardening constituent with high hardness metal carbon-boron compound, alloy is specifically formed content (weight %) and is: C 0.8-5, Cr 9-30, Nb 0.3-9, V 0.1-2, Mo 0.3-5, B 0.2-5, Ni0.5-6, rare earth compound 0.01-2, surplus is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010301423A CN101825111A (en) | 2010-02-09 | 2010-02-09 | Wear resistant fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010301423A CN101825111A (en) | 2010-02-09 | 2010-02-09 | Wear resistant fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101825111A true CN101825111A (en) | 2010-09-08 |
Family
ID=42689214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010301423A Pending CN101825111A (en) | 2010-02-09 | 2010-02-09 | Wear resistant fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN101825111A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825434A (en) * | 2012-09-24 | 2012-12-19 | 济钢集团有限公司 | Manufacturing method of compound anti-wearing steel plate |
| CN102852804A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious sand pump capable of being idled and connected in series |
| CN103206405A (en) * | 2013-03-18 | 2013-07-17 | 丹阳市华昱机电设备有限公司 | Novel impeller |
| CN104708992A (en) * | 2015-02-09 | 2015-06-17 | 宁波郎泰机械有限公司 | Car hub and manufacturing method thereof |
| CN107191389A (en) * | 2017-06-23 | 2017-09-22 | 合肥通用环境控制技术有限责任公司 | A kind of wear-resistant centrifugal blower |
| CN107557537A (en) * | 2017-08-29 | 2018-01-09 | 马鞍山市晨光高耐磨科技发展有限公司 | The preparation method of high-ductility high wear resistance composite board |
| CN108843607A (en) * | 2018-08-22 | 2018-11-20 | 江苏冠愉电机科技有限公司 | A kind of blower convenient for disassembly and assembly |
| CN109072707A (en) * | 2016-04-12 | 2018-12-21 | 赛峰飞机发动机公司 | Blade and method for reloading wearing layer |
-
2010
- 2010-02-09 CN CN201010301423A patent/CN101825111A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852804A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious sand pump capable of being idled and connected in series |
| CN102825434A (en) * | 2012-09-24 | 2012-12-19 | 济钢集团有限公司 | Manufacturing method of compound anti-wearing steel plate |
| CN103206405A (en) * | 2013-03-18 | 2013-07-17 | 丹阳市华昱机电设备有限公司 | Novel impeller |
| CN104708992A (en) * | 2015-02-09 | 2015-06-17 | 宁波郎泰机械有限公司 | Car hub and manufacturing method thereof |
| CN109072707A (en) * | 2016-04-12 | 2018-12-21 | 赛峰飞机发动机公司 | Blade and method for reloading wearing layer |
| CN109072707B (en) * | 2016-04-12 | 2021-05-25 | 赛峰飞机发动机公司 | Blade and method for reloading a wear layer |
| CN107191389A (en) * | 2017-06-23 | 2017-09-22 | 合肥通用环境控制技术有限责任公司 | A kind of wear-resistant centrifugal blower |
| CN107557537A (en) * | 2017-08-29 | 2018-01-09 | 马鞍山市晨光高耐磨科技发展有限公司 | The preparation method of high-ductility high wear resistance composite board |
| CN107557537B (en) * | 2017-08-29 | 2019-04-12 | 马鞍山市晨光高耐磨科技发展有限公司 | The preparation method of high-ductility high wear resistance composite board |
| CN108843607A (en) * | 2018-08-22 | 2018-11-20 | 江苏冠愉电机科技有限公司 | A kind of blower convenient for disassembly and assembly |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20100908 |