CN202608092U - Press roll of forming machine for biomass solid fuel - Google Patents
Press roll of forming machine for biomass solid fuel Download PDFInfo
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- CN202608092U CN202608092U CN2012200104562U CN201220010456U CN202608092U CN 202608092 U CN202608092 U CN 202608092U CN 2012200104562 U CN2012200104562 U CN 2012200104562U CN 201220010456 U CN201220010456 U CN 201220010456U CN 202608092 U CN202608092 U CN 202608092U
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- pressure roller
- solid fuel
- overcoat
- biomass solid
- molding machine
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Abstract
The utility model discloses a press roll of a forming machine for a biomass solid fuel, belonging to the technical field of solid fuels, and used for solving the problems of being easy to wear, short in service life and the like of critical components of the forming machine for a biomass solid fuel. According to the technical scheme, the press roll adopts a split-type structure, and comprises two parts, i.e., an outer sleeve and an inner sleeve which form the split-type press roll via interference fit, the outer sleeve of the press roll is in a rounded-table-shaped hole structure, ceramic hard alloy powder having a granularity of less than 40 meshes is thermally sprayed on the surface of the outer sleeve of the press roll by adopting supersonic plasma spray equipment, the spray thickness is 0.2-0.5 mm, and the hardness achieves 56-62 HRC. Via the press roll structure and the surface wear-resistant layer process method, the forming quality of the biomass solid fuel can be ensured, and the life of the pres roll can be prolonged by about 100 h; and simultaneously, only the outer sleeve needs to be replaced or repaired after the press roll is worn, thus increasing the reusable times of the press roll.
Description
Technical field
A kind of biomass solid fuel molding machine pressure roller belongs to the solid-fuel technology field, specifically is that pressure roller adopts split-type structural; Comprise overcoat and interior cover two parts; Constitute split type pressure roller through interference fit, overcoat is a rounding bench-type pore structure, and the plasma sprayed ceramic Hardmetal materials is adopted on the surface; Come the wearability of enhanced surface, be used to solve problems such as the biomass solid fuel molding machine critical component is easy to wear, service life is short.
Background technology
The biomass solid fuel forming technique has abundant raw material, be easy to realize large-scale production, be convenient to the characteristics that store and transport, manifests its advantage gradually.It can be power plant again clean fuel is provided as the good fuel of countryside kitchen work stove and accessory, heating stove or Industrial Boiler etc., more and more gets more and more people's extensive concerning in recent years.At present, biomass solid fuel molding machine mainly contains several kinds of technology types such as screw extrusion, piston punching press, roller.The utility model is applicable to the mould roller molding machine.Mould roller molding machine main working parts is ring mould and pressure roller, in the compacting chamber, and material moulding under ring mould and pressure roller extruding through nib.Mould roll-type forming processing method satisfies the user biomass moulding is produced the even requirement of shaped fuel, can realize the industrialization automatic charging, has bigger development potentiality.
But there are problems such as critical piece serious wear in this equipment, and wherein, ring mould and pressure roller are the key working parts of make-up machine, and research theory is studied to the failure mechanism of ring mould at present, pressure roller is not furtherd investigate.Pressure roller is used for to ring mould pressing materials.The pressure roller condition of work is more abominable, except that raw material to the pressure roller normal wear, contain hard particles things such as sandstone, silicide and iron filings in the biomass materials such as stalk, wood chip more, aggravation is to the wearing and tearing of pressure roller.Because pressure roller is equal basically with the linear velocity of ring mould, the external diameter of pressure roller is merely 0.4 of ring mould internal diameter, so the pressure roller wear rate is higher 2.5 times than the ring mould.The general pressure roller Design Theory life-span is 300h, but time used is no more than 200h.Some factories are because improper use be less than 150h service time, and the inefficacy pressure roller can't be repaired again seriously because of surface abrasion.The pressure roller rapid wear not only reduces the ratio of briquetting of granular fuel, increases production cost, and directly influences productivity ratio.
At present; For improving the wearability of pressure roller, more to the research of pressure roller external surface shape, like patent No. ZL200520031386.9 (applying date 2005.7.29) and application number 201120033451.7 (2011.01.31); Adopt the post nail to be fixed on the roller shell; The post nail can be avoided roll surface directly to contact material and wear and tear, and the post nail is replaceable, and roll surface can reuse.For reducing moulding function consumption, improve output, the patent No. 200820178079.7 (applying date 2008.11.20) design roller surface is gear-like, and each tooth is all corresponding with the hole of pressing mold.For improving the pressure roller wearability; Roller surface also designs curved groove, folding groove, gear type, pass, like number of patent application 201020207234.0 (applying date 2010.05.28), ZL9510549.7 (applying date 95.5.7), CN201304728 (applying date 2008.11.20), CN201020133771.5 (applying date 2010.3.18).
Summary of the invention
The purpose of the utility model is to provide a kind of biomass solid fuel molding machine pressure roller, is used to solve problems such as the biomass solid fuel molding machine critical component is easy to wear, service life is short.The utility model technology has solved the problem that can't repair after the pressure roller wearing and tearing simultaneously, adopts this technology can make the pressure roller life-span improve nearly 100h, and only needs after the wearing and tearing to change overcoat, and interior cover and other parts are reusable.
For reaching the technical scheme that this purpose takes be, roller structure is split type, comprises overcoat, interior cover two parts, and the two constitutes split type pressure roller through interference fit, and overcoat is a rounding bench-type pore structure, and the plasma sprayed ceramic Hardmetal materials is adopted on the surface.
Above-mentioned a kind of biomass solid fuel molding machine pressure roller; Pressure roller adopts split-type structural; Interior cover is directly installed on outer putting, and the two adopts interference cold charge fit to fix, and purpose is to prevent phenomenons such as the outer temperature that is enclosed within more than 80 ℃ occurs skidding, come off when turning round.
Above-mentioned a kind of biomass solid fuel molding machine pressure roller, overcoat are rounding bench-type pore structure, and the inclination angle of rounding platform is 87 °; Pitch of holes is consistent with the pitch of holes of ring mould; The arrangement mode of axial hole and quantity are consistent with the hole of ring mould, and the aperture of going to the bottom in overcoat round platform hole is just the same with the pore size that encircles nib, are divided into four types of 6mm, 8mm, 10mm, 12mm; Purpose is to make pressure roller in the different wearing and tearing phases, the stressed unanimity of roller surface.
Above-mentioned a kind of biomass solid fuel molding machine pressure roller, overcoat thickness should not be worn with cover in guaranteeing greater than more than the pressure roller shaft eccentric throw 5mm.
Above-mentioned a kind of biomass solid fuel molding machine pressure roller, sleeve surface utilize supersonic speed plasma thermal sprayed principle to carry out intensive treatment, and then strengthen the wearability of roller surface, prolong its service life.
Above-mentioned a kind of biomass solid fuel molding machine pressure roller, sleeve surface spray less than 40 purpose ceramic hard alloy powders, coating layer thickness 0.2-0.5mm, and hardness reaches 56-62HRC.
Above-mentioned a kind of biomass solid fuel molding machine pressure roller, spray power is 22-28Kw, and argon gas is as carrier gas, and hydrogen is auxiliary gas, and gas pressure is 0.5MPa, argon flow amount 4m during spraying
3/ h, hydrogen flowing quantity are 0.1m
3/ h, spray distance are 150mm.
Above-mentioned a kind of biomass solid fuel molding machine pressure roller; Interior cover adopts fixedly axial location of two circlips; Axially motion of cover in preventing; Influence the transmission capacity of pressure roller,, adapt to the pressure roller external diameter of the different series size in the certain limit so that adjust diameter through the thickness of cover in changing.
A kind of biomass solid fuel molding machine pressure roller of the utility model; The biomass solid formed fuel that to can be used for agricultural crop straws such as corn, wheat, paddy rice, cotton, peanut shell and agriculture industrial wood waste such as rice husk, peanut shell and all kinds of forestry residue be raw material production; Pressure roller is divided into the reusable property that inside and outside cover can effectively improve pressure roller; Only need to change or repair overcoat, other parts are reusable, reduced manufacturing cost; And can be under the interior cover situation constant with interior accessory; Change overcoat size and interior cover thickness in the certain limit, adapt to the biomass solid fuel molding machine of different model, be convenient to the tandem product of realizing that the shaping machine set different output requires.
A kind of biomass solid fuel molding machine pressure roller of the utility model; The cladding of ceramic hard alloy material can form the alloy-layer that fuses with matrix on the pressure roller outer surface, have high strength, high-wearing feature; Effectively strengthen the wearability of outer surface; The hard particles things such as sandstone, silicide and iron filings that contain in can the adapted biomass raw material have alleviated the wearing and tearing of roller surface and the erosion of hard particles, have improved the service life of pressure roller overcoat; And also can repair after the wearing layer wearing and tearing, the pressure roller performance after the reparation still can reach new pressure roller anti-wear performance.
Description of drawings:
Fig. 1 is a kind of biomass solid fuel molding machine roller structure sketch map of the utility model;
Fig. 2 is a biomass solid fuel molding machine pressure roller rigging position sketch map;
Fig. 3 is an overcoat rounding bench-type pore structure sketch map;
Fig. 4 is the pressure roller external surface shape sketch map of 6mm for diameter;
Fig. 5 is the pressure roller external surface shape sketch map of 8mm for diameter;
Fig. 6 is the pressure roller external surface shape sketch map of 10mm for diameter;
Fig. 7 is the pressure roller external surface shape sketch map of 12mm for diameter.
The specific embodiment:
Like Fig. 1, shown in 2: 1 is that pressure roller shaft, 2 is the ring mould for pressure roller assembly, 11 for seal cover, 10 for circlip, 9 for bearing gland, 8 for taper roll bearing, 7 for bearing spacer, 6 for pressure roller overcoat, 5 for cover in the pressure roller, 4 for adjusting nut, 3.
A kind of biomass solid fuel molding machine pressure roller of the utility model; Roller structure comprises overcoat and interior cover; Overcoat adopts interference fit to be connected with interior cover, and the overcoat of pressure roller is a rounding bench-type pore structure, and material is 45 steel; Adopting the supersonic speed plasma spraying equipment is that surperficial coating thickness is 0.2-0.5mm less than 40 purpose ceramic hard alloy powders in the surface heat spraying raw material.This structure and method can guarantee the Forming Quality of biomass solid fuel, have prolonged the service life of pressure roller, and the back of pressure roller wearing and tearing simultaneously only needs to change or repair overcoat, has increased the reused number of times of pressure roller.
Further the utility model is described below in conjunction with accompanying drawing:
Like Fig. 1, shown in 2, pressure roller assembly 10 structures are that adjusting nut 2, taper roll bearing 6, seal cover 9 are installed on the pressure roller shaft 1, and position of bearings one side is fixed with the pressure roller shaft shaft shoulder; Opposite side is with adjusting nut 2 adjusting bearing clearancees, and the two bearings outer ring separates with bearing spacer 5, both sides installation shaft pressure cap 7; And adopt circlip 8 fixing; Interior cover 3 is installed on the bearing, and on the cover 3, interior cover 3 was an interference fit with overcoat 4 in overcoat 4 was directly installed on; Adopt interference cold charge fit to fix, guaranteed that outer being enclosed within can not skid or come off after receiving ring mould driving force.
As shown in Figure 2; Pressure roller assembly 10 is installed in ring mould 11 inner rings, and material is transported to pressure roller assembly 10 and encircles in mould 11 cavitys, receives the two squeezing action; Material is pressed against in ring mould 11 holes; Be extruded from ring mould cycle hole then, form columned particle, accomplish the forming process of whole biomass solid formed fuel.
Like Fig. 3,4,5,6, shown in 7, the hole of overcoat 4 is a rounding bench-type pore structure, and the inclination angle of rounding platform is 87 °; Pitch of holes is consistent with the pitch of holes of ring mould 11; The arrangement mode of axial hole and quantity are consistent with the hole of ring mould 11, and the diameter of going to the bottom of overcoat 4 round platforms is just the same with the pore size that encircles mould 11 holes, are divided into four types of 6mm, 8mm, 10mm, 12mm; When overcoat 4 thickness were 10mm, the upper base diameter of round platform was respectively 4.95mm, 6.95mm, 8.95mm, 10.95mm.Adopting rounding bench-type hole purpose is to make pressure roller in the different wearing and tearing phases, the stressed unanimity of roller surface.The pressure roller overcoat is along with wearing-in period increases, and external diameter diminishes gradually, and pressure roller increases with the gap of ring mould; Need regularly adjust, the adjustment back diminishes because of the pressure roller diameter, and the angle of seizing between pressure roller and the ring mould increases; The material of seizing increases, and causes the pressure roller force of periphery to increase, and makes the wearing and tearing aggravation of outer surface.Adopt rounding bench-type hole, can effectively reduce wearing and tearing, along with wearing and tearing increase pressure roller; The aperture in rounding bench-type hole reduces gradually; Material contained in the hole reduces, and overall coefficient of friction diminishes between pressure roller and material, the ring mould because the coefficient of friction of material and storeroom greater than the coefficient of friction between material and the metal, makes; Alleviated pressure roller owing to the increase of seizing the angle increase stressed, service life of having strengthened overcoat 4 greatly.
As shown in Figure 1; The thickness of overcoat 4 should be more than the eccentric throw 5mm greater than pressure roller shaft 1; Pressure roller 10 courses of work need be regulated overcoat 4 and the best clearance of encircling mould 11 according to different material, need adjust the best clearance that pressure roller keeps the mould roller according to different wear extenies simultaneously, therefore; Overcoat 4 thickness are greater than admissible wear extent; The thickness that should guarantee the pressure roller overcoat simultaneously should be greater than the adjustment amount limit of wearing and tearing later stage pressure roller with the ring die clearance, and this limiting quantity is the eccentric throw of pressure roller shaft 1, and cover 3 is not worn in can guaranteeing like this.
Like Fig. 1, shown in 2; For satisfying biomass solid fuel molding machine different series product; The outside dimension of pressure roller assembly 10 also needs corresponding change, and a kind of biomass solid fuel molding machine pressure roller of this utility model axially adopts two circlips 8 fixing; Simple in structure; Need not to design again respective accessory such as pressure roller shaft 1, bearing 6, bearing gland 7, circlip 8, seal cover 9, satisfy the requirement of seriation make-up machine in can changing within the specific limits after the size of the thickness of cover 3 and overcoat 4, effectively reduce the design and the processing charges of pressure roller.
Overcoat 4 surface by utilizing supersonic speed plasma thermal sprayed principles, spraying is less than 40 purpose ceramic hard alloy powders, coating layer thickness 0.2-0.5mm.Spray power is 22-28Kw, and argon gas is as carrier gas, and hydrogen is auxiliary gas, and gas pressure is 0.5MPa, argon flow amount 4m during spraying
3/ h, hydrogen flowing quantity are 0.1m
3/ h, spray distance are 150mm.This method can make the powder smelting of spraying, fully sprawl and be embedded in substrate material surface, and coating is fine and close.Pressure roller after the spraying has high strength, high-wearing feature; Effectively strengthen the wearability of outer surface; The hard particles things such as sandstone, silicide and iron filings that contain in can the adapted biomass raw material have alleviated the wearing and tearing of roller surface and the erosion of hard particles, have improved the service life of pressure roller overcoat.Can repair after the pressure roller wearing and tearing, sclerosis and wearability handle, and can make the pressure roller performance after the reparation reach new pressure roller, rehabilitation cost is well below the cost that more renews pressure roller.
Specific embodiment is following:
It is the 8mm aperture that the pressure roller overcoat adopts diameter, selects for use 45 steel to carry out, and spraying is less than 30 purpose ceramic hard alloy powders; Coating layer thickness 0.3mm is a raw material with the maize straw, pressure roller is installed in carries out wear test on the make-up machine; After the 50h test, the basic no change of roller surface, wear extent is minimum; Behind the 200h, wear extent is about 0.16mm; Behind the 300h, wear extent is about 0.22mm; Behind the 400h, wear extent is about 0.32mm.Be 300h Design Theory service life of pressure roller, adopts this scheme can satisfy the Design Theory requirement of pressure roller, is more than 2 times of present most of pressure roller service life, and this pressure roller can also repair, and also can continue to use after adopting above-mentioned thermal spraying.
What should explain at last is; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the spirit and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. biomass solid fuel molding machine pressure roller; Comprise overcoat (4), interior cover (3); It is characterized in that overcoat (4) and interior cover (3) constitute split type pressure roller through interference fit, overcoat (4) is a rounding bench-type pore structure, and the plasma sprayed ceramic Hardmetal materials is adopted on the surface.
2. a kind of biomass solid fuel molding machine pressure roller according to claim 1 is characterized in that pressure roller adopts split-type structural, and interior cover (3) is directly installed on the overcoat (4), and the two adopts interference cold charge fit to fix.
3. a kind of biomass solid fuel molding machine pressure roller according to claim 1 and 2; It is characterized in that overcoat (4) is rounding bench-type pore structure; The inclination angle of rounding platform is 87 °, and pitch of holes is consistent with the pitch of holes of ring mould (11), and the arrangement mode of axial hole is consistent with the hole of ring mould (11) with quantity; The aperture of going to the bottom in overcoat (4) round platform hole is just the same with the pore size in ring mould (11) hole, is divided into four types of 6mm, 8mm, 10mm, 12mm.
4. a kind of biomass solid fuel molding machine pressure roller according to claim 1 and 2 is characterized in that overcoat (4) thickness should be greater than pressure roller shaft (1) more than the eccentric throw 5mm.
5. a kind of biomass solid fuel molding machine pressure roller according to claim 1 is characterized in that overcoat (4) surface by utilizing supersonic speed plasma thermal sprayed principle carries out intensive treatment.
6. according to claim 1 or 5 described a kind of biomass solid fuel molding machine pressure rollers, it is characterized in that the spraying of overcoat (4) surface less than 40 purpose ceramic hard alloy powders, coating layer thickness 0.2-0.5mm, hardness reaches 56-62HRC.
7. according to claim 1 or 5 described a kind of biomass solid fuel molding machine pressure rollers, it is characterized in that spray power is 22-28Kw, argon gas is as carrier gas, and hydrogen is auxiliary gas, and gas pressure is 0.5MPa, argon flow amount 4m during spraying
3/ h, hydrogen flowing quantity are 0.1m
3/ h, spray distance are 150mm.
8. a kind of biomass solid fuel molding machine pressure roller according to claim 1; It is characterized in that interior cover (3) adopts fixedly axial location of two circlips (8); So that adjust diameter, adapt to the pressure roller external diameter of the different series size in the certain limit through the thickness of cover (3) in changing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200104562U CN202608092U (en) | 2012-01-11 | 2012-01-11 | Press roll of forming machine for biomass solid fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200104562U CN202608092U (en) | 2012-01-11 | 2012-01-11 | Press roll of forming machine for biomass solid fuel |
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| Publication Number | Publication Date |
|---|---|
| CN202608092U true CN202608092U (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200104562U Expired - Fee Related CN202608092U (en) | 2012-01-11 | 2012-01-11 | Press roll of forming machine for biomass solid fuel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499025A (en) * | 2014-12-03 | 2015-04-08 | 哈尔滨工业大学 | Compression roller for flat-die biomass molding machine and ceramic layer growth method of compression roller |
| CN105268371A (en) * | 2015-09-28 | 2016-01-27 | 溧阳市正翔精密机械有限公司 | Separated pressure roller |
| CN107185457A (en) * | 2017-06-21 | 2017-09-22 | 哈尔滨理工大学 | Biomass granule forming machine nip automatic regulating apparatus |
-
2012
- 2012-01-11 CN CN2012200104562U patent/CN202608092U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499025A (en) * | 2014-12-03 | 2015-04-08 | 哈尔滨工业大学 | Compression roller for flat-die biomass molding machine and ceramic layer growth method of compression roller |
| CN104499025B (en) * | 2014-12-03 | 2017-11-03 | 哈尔滨工业大学 | A kind of ceramic layer growing method of flat-die biomass forming machine pressure roller |
| CN105268371A (en) * | 2015-09-28 | 2016-01-27 | 溧阳市正翔精密机械有限公司 | Separated pressure roller |
| CN107185457A (en) * | 2017-06-21 | 2017-09-22 | 哈尔滨理工大学 | Biomass granule forming machine nip automatic regulating apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20121219 Termination date: 20140111 |