CN102371215A - Edge protective tile structure for helical blades of centrifuge - Google Patents
Edge protective tile structure for helical blades of centrifuge Download PDFInfo
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- CN102371215A CN102371215A CN2010102590753A CN201010259075A CN102371215A CN 102371215 A CN102371215 A CN 102371215A CN 2010102590753 A CN2010102590753 A CN 2010102590753A CN 201010259075 A CN201010259075 A CN 201010259075A CN 102371215 A CN102371215 A CN 102371215A
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Abstract
The invention relates to the field of centrifuges in the machinery industry, in particular to an edge protective tile structure for helical blades of a centrifuge. The edge protective tile structure comprises a connecting plate (2) and a ceramic protective tile (3), wherein, a rectangular notch (2a) is arranged at a lower half part at the back of the connecting plate (2), and the connecting plate is positioned on the edges of the helical blades (1) and is welded to the helical blades (1) in a welding manner; the ceramic protective tile (3) is bonded with two right-angled surfaces of the connecting plate (2) by glue; a screw (3c) is inserted in the structure from one side of the ceramic protective tile (3) and is connected with the connecting plate (2), the connecting plate (2) is equipped with a threaded hole (2c), and the ceramic protective tile (3) is equipped with a screw counter bore (3b) matched with the head of the screw; and a rectangular strip (2b) is arranged along the inner right-angle side of the L-shaped connecting plate (2) in a protruding or sunken manner, and a rectangular strip (3a) is arranged at the corresponding position matched with the ceramic protective tile (3) in a sunken or protruding manner. The edge protective tile structure is divided into two parts, namely the connecting plate and the ceramic protective tile which give play to respective characteristics and are assembled and connected conveniently, thereby greatly prolonging the service life of the helical blades and the centrifuge.
Description
Technical field
The present invention relates to the centrifuge specialty of mechanical industry, specifically is the improvement structure of a kind of helical blade anti-wear performance of centrifuge main working parts.
Background technology
Known, horizontal spiral centrifuge is the density contrast that relies on solid-liquid two phases, and under action of centrifugal force, the sinking speed of accelerating solid phase particles realizes the separation machinery of Separation of Solid and Liquid.Along with the needs of environmental protection in modern age, disposal of three wastes development, for all raisings gradually of requirement of industrial wastewater and sludge dewatering treatment.Because it is very fast that therefore characteristics such as the unique continued operation of horizontal screw centrifuge, treating capacity is big, adaptability is strong develop.
In the decanter type horizontal screw centrifuge, after mud is sent into rotary drum by the sewage sludge feed pipe, under the centrifugal action that rotation produces at a high speed, changed in the rotary drum chamber immediately.Mud granule is because proportion is bigger, and centrifugal force is also big, and therefore quilt is got rid of and is attached on the drum inner wall, forms solid layer; Therefore moisture can only be called the pendular ring layer at the inboard liquid level that forms of solid circular layer because density is less, and centrifugal force is little.Gu the mud of circular layer is under the slow promotion of auger conveyor, the slag notch that is transported to the little end flanges of rotary drum is discharged continuously, and the liquid of liquid phase layer is discharged through the liquid outlet on the big end flanges.
Auger conveyor is the core component in the horizontal screw centrifuge, and the separation of material and the conveying of sediment are had important effect.And helical blade is position the most easy to wear in the horizontal screw centrifuge.In order to reduce and avoid the wearing and tearing of helical blade, traditional processing method is that blade pusher face is carried out cure process, and as adopting the alloy of spraying high rigidity, perhaps the edge joint weld at helical blade engages gold bullion or adopts the binder alloy tile.In most of occasions, above measure can be satisfied instructions for use.But in recent years, the continuous expansion along with the application of horizontal screw centrifuge like steel industry, micro mist industry, petroleum industry, requires increasingly high, traditional way to be difficult to effective solution to the wear-resisting of helical blade, needs badly and seeks a kind of more wear-resisting protected mode.Meanwhile, domestic ceramic industry fast development, the wear-resistant ceramic of multiple excellent performance needs wear-resisting occasion to be applied at some.And because the price advantage of pottery has received the concern and the attention of numerous centrifuge producer.But because the red brittleness and the non-welding character of pottery become a difficult problem that is applied in the helical blade protection.Have pottery protection watt is bonded on the helical blade report a bit by glue, but the stressing conditions of helical blade in centrifuge is very abominable that the reaction intensity of bearing is very big; To the bonding requirement of glue be of high quality, come off when occurring wherein one, this breach can become " breach "; The stressed of follow-up protection watt more strengthens; Come off more easily, chain reaction causes whole helical blade to be out of order, and fixing a breakdown, repair will be the very big work of cost.
Summary of the invention
The purpose of this invention is to provide the syndeton of a kind of pottery protection watt and helical blade, make both to be connected firmly, be convenient to again operate the structure that cost is low.
The object of the invention is achieved by following technical scheme:
A kind of edge-protected tile structure of centrifuge helical blade, said protection tile structure comprise that the cross section is the pottery protection watt of metal material connecting plate and the rectangular body of L shape;
The back Lower Half of connecting plate cuts out the rectangular recess that a slice and helical blade edge match;
Connecting plate is configured in the helical blade edge with back rectangular recess location, and connecting plate engages with welding manner with the helical blade junction;
Pottery protection is watt bonding with two right angle faces of glue mode and L shape connecting plate;
Screw penetrates with connecting plate from a pottery protection watt side and is connected, and offers screwed hole on the connecting plate, offers the screw counter bore that is complementary with head of screw in the pottery protection watt;
Along the interior right-angle side projection of L shape connecting plate or a recessed rectangular strip, convex or concave a rectangular strip at the corresponding cooperation position of pottery protection watt.
Alleged " cuboid " also nisi in fact rectangle among this paper; Because the peripheral bus of helical blade is the spiral circle line; Therefore, no matter connecting plate is still ceramic is protected watt parts and parallel line and the non-rectilinear of the peripheral bus of helical blade, but is the circular arc line of certain radian; In order to should be readily appreciated that, adopted the form of presentation of cuboid in the literary composition.
Adopt technical scheme of the present invention; The protection tile structure is divided into pottery protection watt two parts that the cross section is metal material connecting plate and the rectangular body of L shape, the each several part performance effect separately of maximizing favourable factors and minimizing unfavourable ones respectively, the pottery protection watt is a ceramic material; Tear resistance is strong, plays the rotation effect of turning a millstone.
Rectangular recess and helical blade edge that connecting plate back Lower Half cuts out match, and are convenient to correct, accurate, strict location.Connecting plate and helical blade are metal material, and the junction can firm, the convenient joint of welding manner.
Pottery protection is watt bonding with two right angle faces of glue mode and L shape connecting plate; Screw is connected with connecting plate from a pottery protection watt side, offers screwed hole on the connecting plate, and pottery is protected watt and to be offered the screw counter bore that is complementary with head of screw; Both bonding each other between pottery protection watt and the L shape connecting plate by glue, again with both cross-under together, make pottery protect and watt can be securely fixed on the helical blade through connecting plate by screw.
Owing to only connect between the two with one piece of screw, be that fulcrum rotates each other, misplaces in order to prevent both around a screw, so between of the present invention; An interior right-angle side projection or a recessed rectangular strip along L shape connecting plate; And convexing or concaving a rectangular strip at the corresponding cooperation position of pottery protection watt, both embed each other, then can not produce any dislocation; Under the effect of glue and screw, guarantee never loosening and completion the object of the invention.
Further, the ceramic circular gag of configuration on the screw counter bore of said pottery protection watt.
Further, two connecting plate and helical blade bonding crack places that parallel with the helical blade edge, each engages with the spot welding mode with uniform 3 positions.
Further, the height that said connecting plate back Lower Half cuts out a slice rectangular recess is 50% of a back total height, and tolerance is 10% up and down.
Beneficial effect of the present invention does, 1. the present invention is divided into connecting plate and pottery protection watt two parts, brings into play characteristics, the effect of self material separately respectively; 2. pottery protection watt be a ceramic material, and extremely strong wearability is arranged, and in the service life of prolongation helical blade, has also promptly prolonged service life of centrifuge; 3. helical blade adopts ceramic material, and the ability of turning a millstone improves, the also centrifugal effect of favourable whole centrifuge and the raising of efficient; 4. connecting plate and helical blade are located by rectangular recess, are convenient to install, weld; 5. pottery protection watt and connecting plate, through inlaying of glue, screw and rectangular strip, exhausted dislocation-free, the anxiety of becoming flexible, coming off, safe and reliable, avoid the dismounting maintenance cost after the fault and delayed man-hour; 6. prolong component life, avoid fault, reduce repair, improve centrifugal mass, efficient all can obtain very big economic benefit thus; 7. the structure of all employings, means, material are existing routine techniques; But design thus and combination have just produced and have been extruded with advantage and obvious improvement; Need a large amount of protections of device watt on every desk centrifuge; Along with the large scale investment of capital construction, the centrifuge consumption is very big, therefore of the present inventionly successfully develop, release have great application prospect and economic worth, social benefit.
Description of drawings
Fig. 1 is an example structure sketch map of the edge-protected tile structure of centrifuge helical blade of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the structural representation of the present invention's pottery protection watt parts;
Fig. 4 is the structural representation of screw component of the present invention;
Fig. 5 is the structural representation of connecting plate parts of the present invention;
Fig. 6 is the structural representation of local helical blade, observes with the view directions of helical blade plane parallel;
Fig. 7 is the structural representation of the total configuration of centrifuge, can show mechanism of the present invention assembling, the position of object in overall apparatus of using;
Fig. 8 is the right view of Fig. 5;
Fig. 9 is the stereogram that Fig. 8 observes from the upper left side;
Figure 10 is the stereogram of Fig. 9 back position;
Figure 11 is the right view of Fig. 3;
Figure 12 is the stereogram that Figure 11 observes from the upper left side;
Figure 13 is the stereogram of Figure 12 back position.
Among the figure, the 1st, helical blade, the 2nd, connecting plate, 2a are rectangular recess, and 2b is a rectangular strip, and 2c is a screwed hole, the 3rd, pottery protection watt, 3a rectangular strip, 3b are screw counter bores, and 3c is a screw, and 3d is circular gag, and k is a pad.
The specific embodiment
Below in conjunction with accompanying drawing further explain structure of the present invention.
A kind of edge-protected tile structure of centrifuge helical blade, said protection tile structure comprise that the cross section is the pottery protection watts 3 of metal material connecting plate 2 and the rectangular body of L shape; The back Lower Half of connecting plate 2 cuts out the rectangular recess 2a that a slice and helical blade 1 edge match; Connecting plate 2 is configured in helical blade 1 edge with back rectangular recess 2a location, and connecting plate 2 engages with welding manner with helical blade 1 junction; Pottery protection watts 3 is bonding with two right angle faces of glue mode and L shape connecting plate 2; Screw 3c penetrates with connecting plate 2 from pottery protection watt 3 one sides and is connected, and offers screwed hole 2c on the connecting plate 2, offers the screw counter bore 3b that is complementary with head of screw in the pottery protection watts 3; Along the interior right-angle side projection of L shape connecting plate 2 or a recessed rectangular strip 2b, convex or concave a rectangular strip 3a at the corresponding cooperation position of pottery protection watts 3.
The ceramic circular gag 3d of configuration on the screw counter bore 3b of said pottery protection watts 3.Be convenient to the protection of ceramic circular gag 3d to screw.
Article two, the connecting plate 2 and the helical blade 1 bonding crack place that parallel with helical blade 1 edge, each engages with the spot welding mode with uniform 3 positions.From calculating and putting into practice evidence, at rectangular seam crossing, adopt two ends and middle three means of spot welds, both are metal, and commonly used is steel, enough reaches to be welded to connect firm purpose.
The height that said connecting plate 2 back Lower Halves cut out a slice rectangular recess 2a is 50% of a back total height, and tolerance is 10% up and down.The height of rectangular recess 2a is the half the of connecting plate 2 back total heights, and too high, expose very little on top; Also i.e. pottery protection watts 3 exposes very little, the separation of turning a millstone of unfavorable helical blade, and if the height of rectangular recess 2a is very few; Top is exposed too high; I.e. pottery protection watts 3 exposes too high, and the suspicion of influential intensity is also incorrect.
Embodiment, on the centrifuge of LW350X1550 type, the diameter of helical blade 1 is 308 millimeters; Connecting plate 2 adopts 304 stainless steels, and vertically the length of side is 24 millimeters, 15 millimeters of horizontal evaginations; Connecting plate 2 is 37.9 millimeters with pottery protection watt 3 peripheral lengths along helical blade 1; Corundum ceramics are adopted in pottery protection watts 3, are connected spot welding three places respectively, seam place, glue employing epoxy resin high-strength structure glue at connecting plate 2 along table on the helical blade 1 and side; Screw is M5; Very high through connecting back intensity, both do not have pottery in 20000 hours through separating factor 15000g trial run and protected watts 3 wearing and tearing, come off (in the silicon carbide micro-powder classification production application) of the edge-protected tile structure of centrifuge helical blade also do not take place.And prior art adopts the protection watt of carbide alloy; Be 8760 hours (in silicon carbide micro-powder classification production application) general service life; And only with the fixing ceramic tile of glue mode; Through single-piece test, down generations that come off arranged just in 6000g running in continuous 24 hours, under the 3000g separating factor through the generation that comes off was just arranged after soaking in 18 hours.This shows that the present invention has solved a great technical barrier in the centrifuge field; Avoided ceramic protection watts 3 to come off, avoided damage, reduced maintenance maintenance work equipment; Guarantee operation, product quality, improved the service life of device greatly, produced great economic benefit.
Relevant correlation data:
External centrifuge once adopted directly the bond method of ceramic tile of glue, like Ah method's daraf(reciprocal of farad), Hong Bao.Use through about half a year, the machine cacophonia is taken apart and is seen that back discovery pottery comes off in a large number, and cause situation such as drum inner wall, rotary drum discharging opening, helical blade scuffing, wearing and tearing, breakage, for the later stage reparation brings very big difficulty and loss.
Structure field replacement of the present invention is easy, only needs ceramic position heating (spray gun gets final product), and glue is softening to lose efficacy; With taking off on pottery and the connecting plate; Connecting plate need not to pull down, and changes the pottery protection again and watt gets final product with circular gag, can save haulage time, maintenance time and maintenance cost greatly.Less demanding to operating personnel simultaneously, need not ask the professional as surfacing carbide alloy or welding carbide alloy tile.The user can change according to abrasion condition voluntarily, improves the service life of entire machine greatly.
At high rotating speed explosion bulge test bench test, choose domestic and international 20 surplus kind of high strength glue, do the colloid failure test, major part comes off under the 6000g separating factor.After immersion 48 hours, major part comes off under the 4000g separating factor.And adopt connected mode of the present invention, after immersion 72 hours, 15000g running in continuous 72 hours nothing down comes off.
The wearability of corundum ceramic is well a lot of than carbide alloy.
Claims (4)
1. the edge-protected tile structure of a centrifuge helical blade is characterized in that: said protection tile structure comprises that the cross section is the pottery protection watt (3) of the metal material connecting plate (2) and the rectangular body of L shape;
The back Lower Half of connecting plate (2) cuts out the rectangular recess (2a) that a slice and helical blade (1) edge match;
Connecting plate (2) is configured in helical blade (1) edge with back rectangular recess (2a) location, and connecting plate (2) engages with welding manner with helical blade (1) junction;
Pottery protection watt (3) is bonding with two right angle faces of glue mode and L shape connecting plate (2);
Screw (3c) penetrates with connecting plate (2) from pottery protection watt (3) one sides and is connected, and offers screwed hole (2c) on the connecting plate (2), offers the screw counter bore (3b) that is complementary with head of screw in the pottery protection watt (3);
Along the interior right-angle side projection or a recessed rectangular strip (2b) of L shape connecting plate (2), protect the corresponding cooperation position of watt (3) to convex or concave a rectangular strip (3a) at pottery.
2. according to the edge-protected tile structure of the said centrifuge helical blade of claim 1, it is characterized in that going up configuration ceramic circular gag (3d) at the screw counter bore (3b) of said pottery protection watt (3).
3. according to the edge-protected tile structure of the said centrifuge helical blade of claim 1, it is characterized in that two connecting plates (2) and helical blade (1) bonding crack place that parallel with helical blade (1) edge, each engages with the spot welding mode with uniform 3 positions.
4. according to the edge-protected tile structure of the said centrifuge helical blade of claim 1, it is characterized in that the height that said connecting plate (2) back Lower Half cuts out a slice rectangular recess (2a) is 50% of a back total height, tolerance is 10% up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102590753A CN102371215A (en) | 2010-08-20 | 2010-08-20 | Edge protective tile structure for helical blades of centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102590753A CN102371215A (en) | 2010-08-20 | 2010-08-20 | Edge protective tile structure for helical blades of centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102371215A true CN102371215A (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102590753A Pending CN102371215A (en) | 2010-08-20 | 2010-08-20 | Edge protective tile structure for helical blades of centrifuge |
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| CN (1) | CN102371215A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622244A (en) * | 2018-12-29 | 2019-04-16 | 绿水股份有限公司 | Novel interior empty pushing spiral propeller |
| FR3087678A1 (en) * | 2018-07-09 | 2020-05-01 | Kennametal Inc. | Centrifuge tile assembly |
| RU209169U1 (en) * | 2021-08-04 | 2022-02-03 | Общество с ограниченной ответственностью "ТК Парма-Сервис" | Combined wear-resistant insertion of the ports for unloading the solid fraction of drilling mud cuttings of auger centrifuges |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03127643A (en) * | 1989-10-11 | 1991-05-30 | Tsukishima Kikai Co Ltd | Blade of screw conveyer |
| JPH09150932A (en) * | 1995-11-30 | 1997-06-10 | Sumitomo Coal Mining Co Ltd | Screw conveyor blade |
| JPH10128156A (en) * | 1996-11-05 | 1998-05-19 | Nippei Toyama Corp | Screw conveyor type centrifugal separator |
| CN201419127Y (en) * | 2009-06-04 | 2010-03-10 | 浙江大金离心机有限公司 | Helical blade of horizontal screw centrifugal machine |
| CN201768628U (en) * | 2010-08-20 | 2011-03-23 | 上海市离心机械研究所有限公司 | Edge protective tile of centrifuge helical blade |
-
2010
- 2010-08-20 CN CN2010102590753A patent/CN102371215A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03127643A (en) * | 1989-10-11 | 1991-05-30 | Tsukishima Kikai Co Ltd | Blade of screw conveyer |
| JPH09150932A (en) * | 1995-11-30 | 1997-06-10 | Sumitomo Coal Mining Co Ltd | Screw conveyor blade |
| JPH10128156A (en) * | 1996-11-05 | 1998-05-19 | Nippei Toyama Corp | Screw conveyor type centrifugal separator |
| CN201419127Y (en) * | 2009-06-04 | 2010-03-10 | 浙江大金离心机有限公司 | Helical blade of horizontal screw centrifugal machine |
| CN201768628U (en) * | 2010-08-20 | 2011-03-23 | 上海市离心机械研究所有限公司 | Edge protective tile of centrifuge helical blade |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3087678A1 (en) * | 2018-07-09 | 2020-05-01 | Kennametal Inc. | Centrifuge tile assembly |
| CN109622244A (en) * | 2018-12-29 | 2019-04-16 | 绿水股份有限公司 | Novel interior empty pushing spiral propeller |
| RU209169U1 (en) * | 2021-08-04 | 2022-02-03 | Общество с ограниченной ответственностью "ТК Парма-Сервис" | Combined wear-resistant insertion of the ports for unloading the solid fraction of drilling mud cuttings of auger centrifuges |
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Application publication date: 20120314 |