CN2695098Y - Grinding roller of flour mill - Google Patents
Grinding roller of flour mill Download PDFInfo
- Publication number
- CN2695098Y CN2695098Y CN 200420040221 CN200420040221U CN2695098Y CN 2695098 Y CN2695098 Y CN 2695098Y CN 200420040221 CN200420040221 CN 200420040221 CN 200420040221 U CN200420040221 U CN 200420040221U CN 2695098 Y CN2695098 Y CN 2695098Y
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- Prior art keywords
- grinding roller
- roll flute
- wire drawing
- roller
- grinding
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Abstract
The utility model relates to a grinding roller of flour mill which adapts to the industry of wheat flour producing. In addition, the grinding roller of flour mill is used to crush and produce mill of agricultural and sideline products, such as the wheat, the corn, the soy bean, the coarse cereals, the corn cob, etc, in the industries of the grain, the oil, the foods, the fodder, the brewing, etc. The utility model the utility model comprises a surface of the grinding roller with wiredrawing grinding teeth. The teeth top of the wiredrawing grinding teeth is a working face of an arc structure. In other words, the cross section on the top end of the grinding teeth is arc-shaped. The utility model improves the hardness and abrasion resistance of the surface of the grinding roller, and has the advantages of simple maintenance and management, considerable reduction of the production cost of the grinding roller, and the improvement of the quality of the flour.
Description
Described technical field
The utility model belongs to the agricultrue sideline production processing machinery field, industry such as relates to and a kind ofly be used for grain, oil, food, feed, brewages specifically to agricultural byproducts fragmentation, powder process grinding roller of wheat flour-milling such as wheat, corn, soybean, coarse cereals and corncobs.
Background technology
Grinding roller is the main working parts of flour mill, and the Facing material hardness of grinding roller and surface texture are very big to the productivity effect influence of abrasive dust industry.Advanced at present abrasive dust machinery generally adopts two kinds of grinding rollers, and promptly smooth roll and profile of tooth grinding roller (or claiming the wire drawing grinding roller) in " shelling " stage, are mainly used the profile of tooth grinding roller, mainly use smooth roll in reduction, sizing, tail rolls stage.The surface of profile of tooth grinding roller is through forming the sharp-pointed profile of tooth roll flute in some tops after the wire drawing, it to the granular texture of grain and agricultural byproducts carry out fragmentation and the portion of removing when pulverizing effect fine.When just bringing into use,, make that output is higher, power consumption is lower but because material is broken strong, it is more to produce the bran star, so influence wheat slag, the wheat heart, flour quality because of roll flute is sharp.Yet after new roller used certain hour, along with the roll flute rust, output reduction, power consumption increase, broken dialling were scraped the effect reduction, caused wheat bran to contain the powder increase, flour extraction reduces.The frequent grinding roller of changing, not only increase the wire drawing expense, reduce grinding roller and flour mill service life, increase workload, reduce Homes Using TV, and main be the instability that causes production effect.Quite a few factory still uses the profile of tooth grinding roller in the reduction stage at present, and product quality is made a big impact.In order to prevent the excessive destruction of roll flute to abrasive dust process mediopellis structure, advanced at present gristmill all uses smooth roll to carry out thereafter reduction shelling after, and the advantage that smooth roll grinds is less to cortex destruction contained in the material, helps improving the quality of products; But its shortcoming is that the milled-in path number is many, and power consumption increases greatly, and temperature of charge is raise, and influences quality in the product.
This shows that the planform of roller surface and intensity will directly influence multinomial economic and technical norms such as output, flour extraction, energy consumption, the grinding roller service life, Housing Starts of flour mill.
Summary of the invention
In order to overcome the above deficiency that prior art exists, the utility model is changed into arc-shaped structure with the most advanced and sophisticated tooth on the grinding roller, and is applied in the shelling of agricultural byproducts such as coarse cereals such as wheat, corn, soybean and corncob, feed and reduction, sizing, the tail rolls process.
Grinding roller described in the utility model comprises that the surface has the grinding roller face of wire drawing roll flute, and the cross section at wire drawing roll flute tip is a circular arc.The tooth-shape structure on surface is that its original its working face of sharp-pointed toothing only is the facet of 0.02～0.5mm to the obvious improvement of existing sharp-pointed toothing, and roll flute of the present utility model top is the circular arc working face of radius 0.1～2mm.
The structure of the grinding roller that has a circular arc roll flute described in the utility model is as follows: the diameter of described grinding roller is 200～400mm, and the length of grinding roller is 200～1500mm; The tooth depth of described wire drawing roll flute is 0.01～5mm, and the roll flute spacing is 0.5～5mm, and roll flute spiral is 4～16%, and speed roller speed ratio is 1.1: 1～3: 1; The tooth child's hair twisted in a knot-childhood of described wire drawing roll flute is 60～160 °, and wherein the roll flute sharp angle is 15～70 °, and the roll flute obtuse angle is 40～110 °.
The wire drawing roll flute of roller surface described in the utility model is every centimetre of arc 2～16 teeth.Wherein the wire drawing roll flute be every centimetre of arc 2～10 teeth generally be called the coarse thread roll flute; The wire drawing roll flute be every centimetre of arc 10～16 teeth generally be called closely-pitched roll flute or numb tooth.The coarse thread roll flute is applied to the shelling process of material more, and the closely-pitched roll flute is applied to reduction, sizing, tail rolls process more.
On the roll flute surface plasma strengthening wearing layer is arranged.This wearing layer contains chemical elements such as chromium, nickel, silicon, manganese, wherein generally contains chromium 20～50%, nickel 15～40%, silicon 10～40%, manganese 10～30%.This wearing layer can effectively improve roll flute surface strength and wearability.
Grinding roller described in the utility model is applied in the wheat flour milling technology, with coarse thread circular arc discaling roll, replaces traditional pinnacle discaling roll in the break system.Since the increase of tooth top working face, the raising of roller surface hardness, wearability, high-temperature behavior, and the change of roll flute abrasive parameters can obtain following effect: specific discharge improves 20～50%; Improve 2～5 times service life; Power consumption reduces by 10～30%; The bran flakes that grinds the back material is complete, do not have thin bran substantially, and the quantity of wheat slag, the wheat heart is many, quality good, and the quantity of flour is few.
The smooth roll that replaces the reduction system conventional with closely-pitched circular arc discaling roll, because enlarging markedly of surface roughness, the raising of roller surface hardness, wearability, high-temperature behavior, can obtain following effect: specific discharge improves 20～50%, the direct flour extraction rate of flour mill improves 10～30%, during identical flour extraction rate, power consumption reduces by 10～30%, ash content reduces by 0.02～0.1%, elementary whiteness improves 0.5～1.0 whiteness value, grinding roller service life, the Acceptable life than smooth roll improved 1～5 times, and the milled-in path number reduces by 3～6 roads; The devices allocation ratio reduces 10～30%, has saved auxiliary equipment such as wheat flour detacher; The temperature of grinding material reduces by 5～30 ℃, has effectively guaranteed the nutritive value of flour, has improved the edible quality of flour.
For the lower flour mill of precision that is unsuitable for using smooth roll, replace the pinnacle discaling roll of reduction system conventional with closely-pitched circular arc discaling roll.Since the increasing of tooth top working face, the raising of roller surface hardness, wearability, high-temperature behavior, and the change of roll flute abrasive parameters can obtain following effect: specific discharge improves 10～30%; Flour extraction rate improves 10～20%; During identical flour extraction rate, power consumption reduces by 5～15%, and ash content reduces by 0.03～0.1%, and elementary whiteness improves 0.5～1.5 whiteness value; Grinding roller improves 3～10 times service life; The temperature of grinding material reduces by 5～20 ℃.
Use grinding roller of wheat flour-milling of the present utility model, changed the system's setting and the devices allocation ratio of wheat flour milling process.Under equal appointed condition, output improves 20～50%, thereby the output investment ratio conventional art of founding the factory saves 15～30%.Because seldom produce the bran star in the pulverizing process, not only milling method becomes simply, product quality also has significantly raising simultaneously, and is identical as flour extraction when flour extraction changes within the specific limits, and the flour ash content reduces by 0.05～0.1%; When ash content was identical, flour extraction improved 2～5%.Total flour extraction is high more, and effect is obvious more.
When improving the quality of products, because stripping is scraped thoroughly and the mitigation of shear action, make wheat bran contain powder and drop to minimumly, the granularity of wheat bran increases to maximum, does not have thin bran substantially, has improved the quality of byproduct wheat bran.
Use the utility model, the maintenance management of equipment is simple.Because technology is short, total class of equipment and quantity reduce, and service life of equipment increases, and equipment operation rate improves greatly, and maintenance of equipment expense and personnel significantly reduce.
Because generation of the present utility model and use make the prescription change and the process modification of grinding roller casting become possibility, thereby are expected to reduce significantly the production cost of grinding roller.
The concrete effect contrast in the wheat flour milling process of the utility model grinding roller and conventional grinding roller is as follows:
Use the utility model and the conventional pointed tooth grinding roller of equal specification to contrast in the effect of a dermal system:
| One dermal system | Flow (kg/cm.d) | Power consumption (degree/ton wheat) | Break release (%) | Flour extraction rate (%) | The material temperature rise (℃) | Grinding roller service life (my god) |
| The utility model | 1000～1800 | 2～8 | 25～45 | 2～10 | 10～30 | 60～240 |
| Routine techniques | 600～1200 | 3～12 | 30～50 | 5～15 | 15～50 | 15～90 |
Use the utility model and the effect contrast of conventional grinding roller in the processing of reduction system of equal specification:
| Flour extraction rate (%) | Power consumption (degree/ton powder) | Output (kg/cm.d) | Flour ash content (%) | Whiteness | Processing road number | Devices allocation ratio (%) | |
| The utility model | 40～70 | 20～60 | 150～700 | 0.4～0.8 | 70～ 85 | 4～7 | 30～50 |
| Conventional smooth roll | 20～50 | 30～80 | 100～350 | 0.45～0.9 | 70～ 82 | 6～12 | 45～65 |
| The pinnacle discaling roll | 30～60 | 15～70 | 150～600 | 0.6～1.2 | 65～ 80 | 3～6 | 25～50 |
Use the utility model of equal specification and the contrast of the main production target of conventional grinding roller:
| Flour extraction rate (%) | Power consumption (degree/ton powder) | Flour mill total flow (kg/cm.d) | Flour ash content (%) | Elementary whiteness | The material temperature rise (℃) | |
| The utility model | 70～ 85 | 50～80 | 150～350 | 0.4～0.8 | 70～85 | 10～40 |
| Conventional smooth roll | 70～ 80 | 70～110 | 70～180 | 0.45～0.9 | 70～82 | 30～50 |
| The pinnacle discaling roll | 60～ 80 | 50～85 | 100～300 | 0.6～1.2 | 65～80 | 20～50 |
Description of drawings
Fig. 1 is the schematic diagram of the utility model grinding roller;
Fig. 2 is that the A-A of Fig. 1 is to schematic diagram;
Fig. 3 is the utility model roll flute partial enlarged drawing.
Among the figure: 1. grinding roller, 2. roll flute.
The specific embodiment
Embodiment one
The diameter of selecting grinding roller for use is that the number of teeth of 500mm wire drawing roll flute is 3.15 teeth/cm for 220mm length, tooth depth is 0.85mm, the roll flute spacing is 3.17mm, the sharp angle of wire drawing roll flute is 22 °, the obtuse angle is 68 °, roll flute spiral is 6%, and the tooth top plane is 0.2mm, and speed roller speed ratio is 2.5: 1 a conventional wire drawing grinding roller.
It is installed on FMFQ5 * 2 type flour mills, and contrast is used in a dermal system, and its grinding effect contrast is as follows:
| Flow (kg/cm.d) | Power (kw) | Electric current (A) | Break release (%) | Flour extraction rate (%) | Temperature of charge (℃) | Grinding roller service life (my god) | |
| The circular arc discaling roll | 1680 | 15 | 25 | 34 | 4 | 32 | 118 |
| The pinnacle discaling roll | 1120 | 15 | 24 | 36 | 6.5 | 41 | 45 |
Embodiment two
The diameter of selecting grinding roller for use is that the number of teeth of 1000mm wire drawing roll flute is 8.7 teeth/cm for 250mm length, tooth depth is 0.061mm, the roll flute spacing is 1.155mm, the sharp angle of wire drawing roll flute is 30 °, the obtuse angle is 80 °, roll flute spiral is 6%, and the tooth top plane is 0.1mm, and speed roller speed ratio is 2.0: 1 a conventional wire drawing grinding roller.
It is installed on FMFQ5 * 2 type flour mills, and contrast is used in system wholeheartedly, and its grinding effect contrast is as follows:
| Flow (kg/cm.d) | Power (kw) | Electric current (A) | Flour extraction rate (%) | Ash content (%) | Elementary whiteness | Temperature of charge (℃) | Grinding roller service life (my god) | |
| The circular arc discaling roll | 520 | 18.5 | 25 | 51 | 0.48 | 80.6 | 42 | 190 |
| The tradition smooth roll | 460 | 18.5 | 32 | 38 | 0.51 | 79.7 | 56 | 150 |
Embodiment three
The diameter of selecting grinding roller for use is 215mm, length is 350mm, the number of teeth of wire drawing roll flute is 5.5 teeth/cm, tooth depth is 0.5mm, and the roll flute spacing is 1.82mm, and the sharp angle of wire drawing roll flute is 28 °, the obtuse angle is 62 °, roll flute spiral is 15%, and the tooth top plane is 0.15mm, and speed roller speed ratio is 2.5: 1 a conventional wire drawing grinding roller.
It is installed on the MF35 type flour mill, and contrast is used in corncob the 3rd road system, and its grinding effect contrast is as follows:
| Flow (kg/cm.d) | Power (kw) | Electric current (A) | Flour extraction rate (%) | Temperature of charge (℃) | Grinding roller service life (my god) | |
| The circular arc discaling roll | 350 | 5.5 | 7 | 35 | 35 | 64 |
| The pinnacle smooth roll | 200 | 5.5 | 10 | 26 | 46 | 13 |
Embodiment four
The diameter of selecting grinding roller for use is 220mm, length is 500mm, the number of teeth of wire drawing roll flute is 9.5 teeth/cm, tooth depth is 0.115mm, and the roll flute spacing is 1.08mm, and the sharp angle of wire drawing roll flute is 35 °, the obtuse angle is 75 °, roll flute spiral is 8%, and the tooth top plane is 0.1mm, and speed roller speed ratio is 2.5: 1 a conventional wire drawing grinding roller.
It is installed on FMFQ5 * 2 type flour mills, and contrast is used in system wholeheartedly, and its grinding effect contrast is as follows:
| Flow (kg/cm.d) | Power (kw) | Electric current (A) | Flour extraction rate (%) | Ash content (%) | Elementary whiteness | Temperature of charge (℃) | Grinding roller service life (my god) | |
| The circular arc discaling roll | 520 | 11 | 17 | 62 | 0.58 | 80.1 | 45 | 152 |
| The pinnacle discaling roll | 480 | 11 | 19 | 55 | 0.62 | 78.5 | 56 | 56 |
Embodiment five
The diameter of selecting grinding roller for use is 215mm, length is 500mm, the number of teeth of wire drawing roll flute is 2.4 teeth/cm, tooth depth is 2.15mm, and the roll flute spacing is 4.15mm, and the sharp angle of wire drawing roll flute is 25 °, the obtuse angle is 65 °, roll flute spiral is 14%, and the tooth top plane is 0.3mm, and speed roller speed ratio is 2.8: 1 a conventional wire drawing grinding roller.
It is installed on FMFQ5 * 2 type flour mills, and contrast is used in the soybean shattering process, and its grinding effect contrast is as follows:
| Flow (kg/cm.d) | Power (kw) | Electric current (A) | -/12w | 18w/- | Temperature of charge (degree centigrade) | Grinding roller service life (my god) | |
| The circular arc discaling roll | 600 | 15 | 18 | 22 | 8 | 38 | 438 |
| The pinnacle discaling roll | 580 | 15 | 22 | 26 | 12 | 42 | 45 |
Claims (8)
1. a grinding roller of wheat flour-milling comprises that the surface has the grinding roller face of wire drawing roll flute, it is characterized in that the cross section at described wire drawing roll flute tip is a circular arc.
2. grinding roller of wheat flour-milling as claimed in claim 1 is characterized in that: the tooth top working face of described wire drawing roll flute is the circular arc of radius 0.1mm～2mm.
3. grinding roller of wheat flour-milling as claimed in claim 2 is characterized in that: the wire drawing roll flute of described roller surface is every centimetre of arc 2～16 teeth.
4. grinding roller of wheat flour-milling as claimed in claim 3 is characterized in that: the wire drawing roll flute of described roller surface is every centimetre of arc 2～10 teeth.
5. grinding roller of wheat flour-milling as claimed in claim 3 is characterized in that: the wire drawing roll flute of described roller surface is every centimetre of arc 10～16 teeth.
6. as claim 1 or 2 or 3 or 4 or 5 described grinding roller of wheat flour-milling, it is characterized in that:, the diameter of described grinding roller is 200～400mm, the length of grinding roller is 200～1500mm; The tooth depth of described wire drawing roll flute is 0.01～5mm, and the roll flute spacing is 0.5～5mm, and roll flute spiral is 4～16%, and speed roller speed ratio is 1.1: 1～3: 1; The tooth child's hair twisted in a knot-childhood of described wire drawing roll flute is 60～160 °, and wherein the roll flute sharp angle is 15～70 °, and the roll flute obtuse angle is 40～110 °.
7. grinding roller of wheat flour-milling as claimed in claim 6 is characterized in that: there is wearing layer on the surface of described wire drawing roll flute.
8. grinding roller of wheat flour-milling as claimed in claim 7 is characterized in that: described wearing layer is the plasma strengthening wearing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040221 CN2695098Y (en) | 2004-04-27 | 2004-04-27 | Grinding roller of flour mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040221 CN2695098Y (en) | 2004-04-27 | 2004-04-27 | Grinding roller of flour mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2695098Y true CN2695098Y (en) | 2005-04-27 |
Family
ID=34774227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420040221 Expired - Lifetime CN2695098Y (en) | 2004-04-27 | 2004-04-27 | Grinding roller of flour mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2695098Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301797C (en) * | 2004-04-27 | 2007-02-28 | 任光利 | Milling roller of flour mill, method for machining milling teeth on milling roller surface and use of milling roller |
| CN106362830A (en) * | 2016-09-07 | 2017-02-01 | 郑州正旺科贸有限公司 | Stone grinding process |
| CN110124788A (en) * | 2019-05-10 | 2019-08-16 | 罗直宝 | A kind of bean product processing soybean milling equipment |
-
2004
- 2004-04-27 CN CN 200420040221 patent/CN2695098Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301797C (en) * | 2004-04-27 | 2007-02-28 | 任光利 | Milling roller of flour mill, method for machining milling teeth on milling roller surface and use of milling roller |
| CN106362830A (en) * | 2016-09-07 | 2017-02-01 | 郑州正旺科贸有限公司 | Stone grinding process |
| CN110124788A (en) * | 2019-05-10 | 2019-08-16 | 罗直宝 | A kind of bean product processing soybean milling equipment |
| CN110124788B (en) * | 2019-05-10 | 2021-05-04 | 赣州统茂塑胶五金有限公司 | Soybean grinding equipment is used in soyfood processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20040427 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |