CN102785386A - Pocking mark pressing roller and surfacing welding process thereof - Google Patents
Pocking mark pressing roller and surfacing welding process thereof Download PDFInfo
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- CN102785386A CN102785386A CN2012103051843A CN201210305184A CN102785386A CN 102785386 A CN102785386 A CN 102785386A CN 2012103051843 A CN2012103051843 A CN 2012103051843A CN 201210305184 A CN201210305184 A CN 201210305184A CN 102785386 A CN102785386 A CN 102785386A
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Abstract
The invention discloses a pocking mark pressing roller. The pocking mark pressing roller comprises a pressing roller housing and struck roller teeth arranged on the housing; FeCrC alloy pocking marks are surfacing-welded on the teeth sides and the teeth crests of the roller teeth; the areas of the teeth side faces surfacing-welded with the pocking marks are 3/4 of that from the teeth tops to the teeth roots; the teeth side faces surfacing-welded with the pocking marks are 1 mm lower than that not surfacing-welded with the pocking marks; the pocking marks arranged at the teeth sides are evenly and discontinuously arranged; the pocking marks of the teeth tops are evenly and continuously arranged; and the heights of the pocking marks range from 1 to 3 mm. The surfacing welding process of the pocking mark pressing roller comprises the steps of: using a direct current mannual welding method or a CO2 gas shield automatic welding method, and using a UTP718S welding rod with the diameter of 4.0 mm or a UTPA718S welding wire with the diameter of 1.2 mm, to perform the even and discontinuous surfacing-welding on a tooth side surfacing-welding position and perform the even and continuous surfacing-welding on a tooth crest surfacing-welding position. With the adoption of the surfacing welding process, the service life of the pressing roller is prolonged; the maintenance cost is lowered; the rolling-in performance is greatly improved; the bagasse moisture, the energy consumption, and the discharge are reduced; the production target is improved; and the economic benefit of a sugarhouse is improved.
Description
Technical field
The present invention relates to Sugar cane press roller and built-up welding manufacturing thereof or recovery technique field, specifically is that a kind of pit is pressed roller and bead-welding technology thereof.
Background technology
Crusher is as one of equipment of sugar refinery most critical; Because long-time continuous operation under the working condition of harshness; Each critical piece of crusher variety of issue occurs through regular meeting in process of production; For example: wearing and tearing and crackle etc., thus have influence on reaching of various production targets, as: squeezing amount, infiltration water temperature, sucrose extraction, bagasse moisture content etc.
Pressing roller is the core component of crusher, and mostly roller shell is alloy cast iron or vermicular graphite iron material, because it has good castability, machinability and absorbing property etc., and cheap, production technology is simple, so be able to be widely used.But owing to have a large amount of celluloses and hemicellulose tissue in the bagasse, the press for extracting juice roller weares and teares very fast in expressing process, and gripping cane capacity is poor, and rumble is gone into bad, the squeezing decrease in efficiency.Particularly under the situation of rainy weather, because sugarcane contains a large amount of thickness silt particles, the metal roll surface will seriously polish, and one is pressed the multipotency of roller and uses two to press seasons, causes great waste.
The way of part sugar refinery manual build up welding tungsten carbide tooth top once on probation improves the wearability and the gripping cane capacity of roller shell.But,, in running, come off easily because the knot platform power of tungsten carbide and cast iron parent is poor; And, can only protect the roller shell tooth top, go into helpfully to improving rumble, but flank protection is still cut little ice; In addition, the built-up welding time is longer, and efficient is lower, and process is difficult for grasping.
Summary of the invention
Problems such as the purpose of this invention is to provide a kind of pit and press roller and bead-welding technology, it is relatively poor to solve the roller shell anti-wear performance, and lack service life, and rumble is gone into difficulty, and the built-up welding time is grown, efficient is lower.
The present invention solves the problems of the technologies described above the technical scheme of being taked: a kind of pit is pressed roller; Comprise the roller tooth of roller shell and the housing system of getting on the bus, built-up welding has FeCrC alloy pit on the flank of roller tooth and the tooth top, and the flank of built-up welding pit is that tooth top is to 3/4 of tooth root; The flank of built-up welding pit is than the low 1mm of flank of not built-up welding pit; The even discontinuous arrangement of the pit of flank, the pit of tooth top is evenly arranged continuously, and the pit height is 1-3mm.
The bead-welding technology that described pit is pressed roller is: the scope of pressing roller flank built-up welding pit is the car 1mm that goes down respectively, and direct current manual welding or CO are adopted in built-up welding
2Gas-shield automatic welding connects method, uses the UTP718S welding rod of diameter 4.0mm or the UTPAF718S welding wire of diameter 1.2mm, carries out even discontinuous built-up welding at the flank surfacing part, carries out evenly built-up welding continuously at the tooth top surfacing part, and the height that makes pit is 1-3mm.
For fear of the wearing and tearing of pit to combing of built-up welding, in actual applications, will comb the face angle and handle, and end comb is the even smooth built-up welding one deck 3mm alloy wear-resisting layer of UTPLEDURIT61 welding rod of 4.0mm with diameter to littler 2 ° than pressing the roll surface angle.
The present invention has following beneficial effect:
(1) significantly improve the anti-wear performance that presses roller, after finishing in press for extracting juice season, all press the wear extent of roller overlay claddings less than ten thousand tons of sugarcanes of 1mm/100; Part is pressed the roller wear extent less than ten thousand tons of sugarcanes of 0.3mm/100; Profile of tooth is kept perfectly, and need not maintenance, and next press for extracting juice can normally be used in season; Reduce the maintenance cost of pressing roller, prolonged the service life of pressing roller.
(2) pressing the roller rumble, to go into performance good, do not have the head tank clogging.
(3) each item production target is significantly improved, and has improved the infiltration water temperature, reduces discharge of wastewater; Reduce bagasse moisture, improve the packing rate; Reduce consumption mark coal rate, practiced thrift cost.
Description of drawings
Fig. 1 is that pit of the present invention is pressed the roll structure sketch map.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is further described.
Pit of the present invention is pressed roller; Comprise the roller tooth 2 of roller shell 1 and the housing system of getting on the bus, built-up welding has FeCrC alloy pit 3 on the flank of roller tooth 2 and the tooth top, and the flank of built-up welding pit 3 is that tooth top is to 3/4 of tooth root; The flank of built-up welding pit 3 is than the low 1mm of flank of not built-up welding pit; The pit 3 even discontinuous arrangements of flank, the pit 3 of tooth top is evenly arranged continuously, and pit 3 highly is 2mm.
The bead-welding technology that pit of the present invention is pressed roller is: the scope of pressing roller flank built-up welding pit 3 is the car 1mm that goes down respectively, and direct current manual welding or CO are adopted in built-up welding
2Gas-shield automatic welding connects method, uses the UTP718S welding rod of diameter 4.0mm or the UTPAF718S welding wire of diameter 1.2mm, carries out even discontinuous built-up welding at the flank surfacing part, carries out evenly built-up welding continuously at the tooth top surfacing part, and the height that makes pit 3 is 2mm.
For fear of the wearing and tearing of 3 pairs of combs of pit of built-up welding, in actual applications, will comb the face angle and handle, and end comb is the even smooth built-up welding one deck 3mm alloy wear-resisting layer of UTPLEDURIT61 welding rod of 4.0mm with diameter to littler 2 ° than pressing the roll surface angle.
Pit hardness, tensile strength, wear resistance are tested respectively, and the result sees table 1, table 2, table 3 respectively:
Table 1 pit hardness test result
Table 2 pit tensile strength test result
Table 3 pit wear resistance test result
Can know that according to test result pit hardness has improved 77.6% than roller shell, also combine height than matrix self with high base strength, wear extent is merely 10.8% of roller shell.
Utilizing pit of the present invention to press roller makes an experiment in a sugar refinery; One in this sugar refinery is pressed and is pressed 86.3 ten thousand tons of sugarcanes season altogether, and after finishing in press for extracting juice season, all press the wear extent of roller overlay claddings less than ten thousand tons of sugarcanes of 1mm/100; The press for extracting juice roller that has wearing and tearing even less than ten thousand tons of sugarcanes of 0.3mm/100; Profile of tooth is kept perfectly, and need not maintenance, and next press for extracting juice can normally be used in season.The head tank clogging does not appear in whole press for extracting juice season of all crushers, and rumble is gone into fine, and the infiltration water temperature is increased to 65 °～75 °, and discharge of wastewater reduces.Bagasse moisture drops to 44.47%, and the packing rate rises, because moisture reduces, consuming mark coal rate this press for extracting juice season is 4.98%, presses than last one and has reduced by 0.42 percentage point season, has reduced energy consumption, has practiced thrift cost.Last press for extracting juice season sucrose extraction is 96.17%, this press for extracting juice season sucrose extraction rise to 96.6%, improve 0.43 percentage point on year-on-year basis.
It is thus clear that pit of the present invention presses roller and bead-welding technology can well improve the service life of pressing roller, reduce maintenance cost; Simultaneously significantly improve rumble and go into performance, reduce bagasse moisture, cut down the consumption of energy; Reduced exhaust improves production target, improves the economic benefit in sugar refinery.
Claims (2)
1. a pit is pressed roller, comprises the roller tooth of roller shell and the housing system of getting on the bus, and it is characterized in that; Built-up welding has FeCrC alloy pit on the flank of roller tooth and the tooth top; The flank of built-up welding pit be tooth top to 3/4 of tooth root, the flank of built-up welding pit is than the low 1mm of flank of not built-up welding pit, the even discontinuous arrangement of the pit of flank; The pit of tooth top is evenly arranged continuously, and the pit height is 1-3mm.
2. pit according to claim 1 is pressed the bead-welding technology of roller, it is characterized in that, the scope of pressing roller flank built-up welding pit is the car 1mm that goes down respectively, and direct current manual welding or CO are adopted in built-up welding
2Gas-shield automatic welding connects method, uses the UTP718S welding rod of diameter 4.0mm or the UTPAF718S welding wire of diameter 1.2mm, carries out even discontinuous built-up welding at the flank surfacing part, carries out evenly built-up welding continuously at the tooth top surfacing part, and the height that makes pit is 1-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103051843A CN102785386A (en) | 2012-08-24 | 2012-08-24 | Pocking mark pressing roller and surfacing welding process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103051843A CN102785386A (en) | 2012-08-24 | 2012-08-24 | Pocking mark pressing roller and surfacing welding process thereof |
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| CN102785386A true CN102785386A (en) | 2012-11-21 |
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| CN2012103051843A Pending CN102785386A (en) | 2012-08-24 | 2012-08-24 | Pocking mark pressing roller and surfacing welding process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104999227A (en) * | 2015-07-17 | 2015-10-28 | 深圳华盛过滤系统有限公司 | Production method of pressing rib of roller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2483949A1 (en) * | 1980-06-06 | 1981-12-11 | Kaether Willy | METHOD AND DEVICE FOR REMOVING THE HUMIDITY OF SUGAR CANE BAGAS OR SIMILAR MATERIALS |
| CN2386951Y (en) * | 1999-08-31 | 2000-07-12 | 王孝忠 | Improvement in rough surface and wear resistance of sugar-cane press roller |
| US6280370B1 (en) * | 1997-02-10 | 2001-08-28 | The Track Shop Pty Ltd. | Abrasion resistant surface coatings and method of forming same |
| CN2615142Y (en) * | 2003-04-29 | 2004-05-12 | 柳州市柳联激光加工工程有限责任公司 | Squeezing roll for sugar cane press |
| CN101113480A (en) * | 2007-08-31 | 2008-01-30 | 杨学唐 | Method for making hard-surface alloy sugarcane squeeze roller |
| CN201350698Y (en) * | 2009-01-22 | 2009-11-25 | 陈疆 | Pit squeeze roll of squeezer |
| CN202753462U (en) * | 2012-08-24 | 2013-02-27 | 广西溢澜焊接技术有限公司 | Pitted roller |
-
2012
- 2012-08-24 CN CN2012103051843A patent/CN102785386A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2483949A1 (en) * | 1980-06-06 | 1981-12-11 | Kaether Willy | METHOD AND DEVICE FOR REMOVING THE HUMIDITY OF SUGAR CANE BAGAS OR SIMILAR MATERIALS |
| US6280370B1 (en) * | 1997-02-10 | 2001-08-28 | The Track Shop Pty Ltd. | Abrasion resistant surface coatings and method of forming same |
| CN2386951Y (en) * | 1999-08-31 | 2000-07-12 | 王孝忠 | Improvement in rough surface and wear resistance of sugar-cane press roller |
| CN2615142Y (en) * | 2003-04-29 | 2004-05-12 | 柳州市柳联激光加工工程有限责任公司 | Squeezing roll for sugar cane press |
| CN101113480A (en) * | 2007-08-31 | 2008-01-30 | 杨学唐 | Method for making hard-surface alloy sugarcane squeeze roller |
| CN201350698Y (en) * | 2009-01-22 | 2009-11-25 | 陈疆 | Pit squeeze roll of squeezer |
| CN202753462U (en) * | 2012-08-24 | 2013-02-27 | 广西溢澜焊接技术有限公司 | Pitted roller |
Non-Patent Citations (1)
| Title |
|---|
| 苏毅: "糖厂榨辊壳磨损研究状况", 《广西轻工业》, no. 1, 30 March 1996 (1996-03-30), pages 3 - 3 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104999227A (en) * | 2015-07-17 | 2015-10-28 | 深圳华盛过滤系统有限公司 | Production method of pressing rib of roller |
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Application publication date: 20121121 |