CN111617821B - Big belly polishing shaft with self-priming effect - Google Patents
Big belly polishing shaft with self-priming effect Download PDFInfo
- Publication number
- CN111617821B CN111617821B CN202010712195.8A CN202010712195A CN111617821B CN 111617821 B CN111617821 B CN 111617821B CN 202010712195 A CN202010712195 A CN 202010712195A CN 111617821 B CN111617821 B CN 111617821B
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- CN
- China
- Prior art keywords
- section
- discharging
- feeding
- flaring
- polishing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005498 polishing Methods 0.000 title claims abstract description 75
- 230000000694 effects Effects 0.000 title claims abstract description 28
- 210000001015 abdomen Anatomy 0.000 title claims abstract description 24
- 238000007599 discharging Methods 0.000 claims abstract description 51
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 abstract description 22
- 235000009566 rice Nutrition 0.000 abstract description 22
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 241000209094 Oryza Species 0.000 description 21
- 238000005265 energy consumption Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B3/00—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
- B02B3/04—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of rollers
Landscapes
- Adjustment And Processing Of Grains (AREA)
Abstract
The invention provides a large belly polishing shaft with self-priming effect, which is a double-head large belly shaft with a Venturi tube structure, and the device comprises: a feeding assembly section 1, a processing section 2 and a discharging assembly section 3; the feed assembly section 1 comprises: a feeding section air inlet flaring 11, a feeding section straight opening 12 and a feeding section reverse flaring 13; the processing section 2 comprises: a large belly cavity 21 and an air spraying hole 22; the discharge assembly section 3 includes: the air inlet flaring 31 of the discharging section, the straight opening 32 of the discharging section and the inverse flaring 33 of the discharging section; the polishing machine has the advantages of improving the air inlet of the polishing machine, reducing the rice temperature, improving the yield and polishing effect.
Description
Technical Field
The invention relates to the field of rice polishing equipment, in particular to a large-belly polishing shaft with a self-priming effect.
Background
As the prior art, the rice polishing machine is widely applied to the rice processing industry at present and is used for improving the quality and the quality guarantee period of rice.
The core component of the rice polishing machine is a polishing roller, and two main rice polishing rollers in the market at present are: one is a sleeve roller type, namely, a polishing roller and a transmission shaft are respectively manufactured, and then the polishing roller is sleeved on the transmission shaft; the other is to manufacture the polishing roller and the transmission shaft into a whole; the main shaft of the polishing roller is hollow, air is required to be sucked from the main shaft hole, and then the air is sprayed from the air spraying hole on the polishing roller, so that the air flow is utilized to suspend and hold the materials in the polishing chamber, and meanwhile, the ground rice flour in the polishing process is taken away by the air flow; the air flow also brings polishing agent (purified water) for auxiliary polishing into the polishing chamber to mix with the rice.
However, due to limitations of processing means, polishing process requirements, and other factors, the conventional polishing roller or polishing shaft has the following defects:
1. mechanical assembly limitations: namely, the bearing or the driving belt wheel is limited, so that the polishing shaft with the same type has a limit on the size of the shaft hole, and the shaft hole cannot be too large; this results in a limited amount of air flow being drawn into the polishing chamber.
2. During the rice polishing process, a large amount of heat is generated due to mutual friction of rice grains, and the heat needs to be taken away with the assistance of air flow, otherwise, during the processing process, the rice temperature is too high, and the quality of rice finished products is affected; thus, there is a need to increase the flow of gas into the polishing chamber as much as possible; because the size of the shaft hole is limited, the performance of the induced draft fan can only be improved to increase the air quantity when the air flow is to be improved; in this way, the wind speed of the air flow entering the polishing chamber is greatly increased, however, too high wind speed leads to the increase of the wind resistance of the system and the increase of the energy consumption, and on the other hand, high wind speed can increase the loss in the rice processing process, the broken rice rate, the powder yield and the like, which is not beneficial to society and economy.
3. The polishing shaft and the polishing roller are integrated to improve the area of the air inlet, so that the air inlet area of the polishing chamber can be effectively improved, and the trouble of the problems is well reduced; however, there still remains a problem of upper ventilation limit; in addition, this practice requires larger bearings and assembly parts than the sleeve roller polisher for the same type polisher, which undoubtedly increases the cost of the device manufacture.
Venturi effect: when a gas or liquid flows inside the venturi, the dynamic pressure (velocity head) reaches a maximum at the narrowest point of the pipe, the static pressure (resting pressure) reaches a minimum, and the velocity of the gas (liquid) rises due to the reduced cross-sectional area of the through-flow. The entire current is subjected to the conduit deflation process at the same time, and the pressure is reduced at the same time. And thus creates a pressure differential that is used to measure or provide an external suction force to the fluid.
In summary, how to provide a polishing chamber of a polishing machine that is economical and inexpensive and can supply sufficient air volume without increasing energy consumption is a technical problem in the rice polishing machine industry.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a large-belly polishing shaft with a self-priming effect; the device utilizes venturi effect, designs the polishing shaft into the big belly axle of double bandeau venturi tube structure.
The invention is realized by the following modes:
a large belly polishing shaft with self-priming effect, the device comprising: a feeding assembly section 1, a processing section 2 and a discharging assembly section 3; the feed assembly section 1 comprises: a feeding section air inlet flaring 11, a feeding section straight opening 12 and a feeding section reverse flaring 13; the processing section 2 comprises: a large belly cavity 21 and an air spraying hole 22; the discharge assembly section 3 includes: the discharging section is provided with an air inlet flaring 31, a discharging section straight opening 32 and a discharging section reverse flaring 33.
Preferably, the aperture of the large-belly cavity 21 is larger than that of the straight inlet 12 of the feeding section or the straight inlet 32 of the discharging section.
Preferably, the feeding assembly section 1 is characterized in that the air inlet flaring 11 of the feeding section is a gradually shrinking taper pipe, the air flow is gradually compressed and accelerated after entering and passes through the straight inlet 12 of the feeding section, the reverse flaring 13 of the feeding section is a gradually enlarging taper pipe, so that the air flow entering at high speed is rapidly diffused and enters the large belly cavity 21, and then passes through the air spraying hole 22 and enters the polishing chamber.
Preferably, the discharging assembly section 3 is characterized in that the air inlet flaring 31 of the discharging section is a gradually shrinking taper pipe, the air flow is gradually compressed and accelerated after entering and passes through the straight opening 32 of the discharging section, the reverse flaring 33 of the discharging section is a gradually enlarging taper pipe, so that the air flow entering at high speed is rapidly diffused and enters the large belly cavity 21, and then passes through the air spraying hole 22 and enters the polishing chamber.
Preferably, as the air flow draws in air from the inlet fitting section 1 and the outlet fitting section 3, a venturi effect is created, providing an external suction to the air flow, thereby drawing in more air without increasing resistance and energy consumption.
Preferably, when air passes through the feeding assembly section 1 and the discharging assembly section 3 and enters the large belly cavity 21, the air speed is reduced due to the expansion effect of the air, and the expansion absorbs heat; on one hand, excessive wind speed is prevented from entering the polishing chamber through the air spraying holes 22, so that polishing loss is improved; on the other hand, the air expands to absorb heat, and the heat generated by rice polishing is absorbed in an auxiliary way, so that the rice temperature is reduced.
Preferably, the outer ring diameter of the processing section 2 is larger than that of a common polishing shaft, so that the outer surface area of the polishing shaft is increased, a larger space is provided for installing polishing ribs for the same-level polishing rollers, a larger outer ring space is provided for material circulation, and therefore the output and polishing effect of the polishing machine can be improved, and the whole energy consumption is reduced.
In summary, the present invention provides a large-belly polishing shaft with self-priming effect, and the device includes: a feeding assembly section 1, a processing section 2 and a discharging assembly section 3; the feed assembly section 1 comprises: a feeding section air inlet flaring 11, a feeding section straight opening 12 and a feeding section reverse flaring 13; the processing section 2 comprises: a large belly cavity 21 and an air spraying hole 22; the discharge assembly section 3 includes: the air inlet flaring 31 of the discharging section, the straight opening 32 of the discharging section and the inverse flaring 33 of the discharging section; the polishing machine has the advantages of improving the air inlet of the polishing machine, reducing the rice temperature, improving the yield and polishing effect.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of the present invention.
Detailed Description
Specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings:
as shown in fig. 1, a large belly polishing shaft with self-priming effect, the device comprises: a feeding assembly section 1, a processing section 2 and a discharging assembly section 3; the feed assembly section 1 comprises: a feeding section air inlet flaring 11, a feeding section straight opening 12 and a feeding section reverse flaring 13; the processing section 2 comprises: a large belly cavity 21 and an air spraying hole 22; the discharge assembly section 3 includes: the discharging section is provided with an air inlet flaring 31, a discharging section straight opening 32 and a discharging section reverse flaring 33.
As shown in fig. 1 and 2, the feeding assembly section 1 is characterized in that the air inlet flaring 11 of the feeding section is a gradually contracted taper pipe, the air flow is gradually compressed and accelerated after entering, and passes through the straight inlet 12 of the feeding section, the reverse flaring 13 of the feeding section is a gradually enlarged taper pipe, so that the air flow entering at high speed is rapidly diffused and enters the large belly cavity 21, and then passes through the air spraying hole 22 and enters the polishing chamber; the structure enables the feeding assembly section 1 to form a venturi tube structure, so that a venturi effect is generated when air flow enters the polishing shaft from the feeding assembly section 1, and external suction force is provided for the air flow, therefore, the structure can improve the air inlet quantity of the polishing shaft on the premise of not improving the power of the induced draft fan.
Preferably, the discharging assembly section 3 is characterized in that the air inlet flaring 31 of the discharging section is a gradually shrinking taper pipe, the air flow is gradually compressed and accelerated after entering and passes through the straight opening 32 of the discharging section, the reverse flaring 33 of the discharging section is a gradually enlarging taper pipe, so that the air flow entering at high speed is rapidly diffused and enters the large belly cavity 21, and then passes through the air spraying hole 22 and enters the polishing chamber; the structure enables the discharging assembly section 3 to form a venturi tube structure, so that a venturi effect is generated when air flow enters the polishing shaft from the discharging assembly section 3, and external suction force is provided for the air flow, therefore, the structure can improve the air inlet quantity of the polishing shaft on the premise of not improving the power of the induced draft fan.
As shown in fig. 2, as the air flow draws in air from the infeed and outfeed mounting sections 1, 3, a venturi effect is created that provides an external suction to the air flow, thereby drawing in more air without increasing drag and energy consumption.
Preferably, when air passes through the feeding assembly section 1 and the discharging assembly section 3 and enters the large belly cavity 21, the air speed is reduced due to the expansion effect of the air, and the expansion absorbs heat; on one hand, excessive wind speed is prevented from entering the polishing chamber through the air spraying holes 22, so that polishing loss is improved; on the other hand, the air expands to absorb heat, and the heat generated by rice polishing is absorbed in an auxiliary way, so that the rice temperature is reduced.
As shown in FIG. 1, due to the structural design of the large-belly cavity 21, the outer ring diameter of the processing section 2 is larger than that of a common polishing shaft, so that the outer surface area of the polishing shaft is increased, a larger space is provided for installing polishing ribs for the same-level polishing roller, a larger outer ring space is provided for material circulation, and therefore the output and polishing effect of the polishing machine can be improved, and the overall energy consumption is reduced.
Preferably, the aperture of the large-belly cavity 21 is larger than that of the straight inlet 12 of the feeding section or the straight inlet 32 of the discharging section.
Preferably, the aperture of the large-belly cavity 21 is 1.1-1.7 times of the aperture of the straight inlet 12 of the feeding section or the straight outlet 32 of the discharging section.
Preferably, the aperture of the large-belly cavity 21 is 1.7-2.5 times of the aperture of the straight inlet 12 of the feeding section or the straight outlet 32 of the discharging section.
Preferably, the aperture of the large belly cavity 21 is 2.5-3.2 times of the aperture of the straight inlet 12 of the feeding section or the straight outlet 32 of the discharging section.
In summary, the present invention provides a large-belly polishing shaft with self-priming effect, and the device includes: a feeding assembly section 1, a processing section 2 and a discharging assembly section 3; the feed assembly section 1 comprises: a feeding section air inlet flaring 11, a feeding section straight opening 12 and a feeding section reverse flaring 13; the processing section 2 comprises: a large belly cavity 21 and an air spraying hole 22; the discharge assembly section 3 includes: the air inlet flaring 31 of the discharging section, the straight opening 32 of the discharging section and the inverse flaring 33 of the discharging section; the polishing machine has the advantages of improving the air inlet of the polishing machine, reducing the rice temperature, improving the yield and polishing effect.
Claims (4)
1. A large belly polishing shaft with self-priming effect, the device comprising: a feeding assembly section (1), a processing section (2) and a discharging assembly section (3); the feed assembly section (1) comprises: the feeding section is provided with an air inlet flaring (11), a feeding section straight opening (12) and a feeding section reverse flaring (13); the processing section (2) comprises: a big belly cavity (21) and an air spraying hole (22); the discharge assembly section (3) comprises: the air inlet flaring (31) of the discharging section, the straight opening (32) of the discharging section and the inverse flaring (33) of the discharging section; the method is characterized in that: the feeding assembly section (1) and the discharging assembly section (3) are venturi tube structures, and the aperture of the large-belly cavity (21) is larger than that of the straight port (12) of the feeding section or the straight port (32) of the discharging section; the air inlet flaring (11) of the feeding section is a section of gradually contracted taper pipe, the counter flaring (13) of the feeding section is a section of gradually enlarged taper pipe, so that the feeding assembly section (1) forms a venturi structure, and when air flow enters the feeding assembly section (1), venturi effect is generated, and external suction force is provided for the air flow; the air inlet flaring (31) of the discharging section is a gradually contracted taper pipe, the counter flaring (33) of the discharging section is a gradually enlarged taper pipe, so that the discharging assembly section (3) forms a venturi structure, and when air flow enters the discharging assembly section (3), a venturi effect is generated, and an external suction force is provided for the air flow; when air passes through the feeding assembly section (1) and the discharging assembly section (3) and enters the large-belly cavity (21), the air expands, the wind speed is reduced, and the expansion absorbs heat.
2. A large belly polishing shaft with self-priming effect as in claim 1 wherein: the aperture of the large-belly cavity (21) is 1.1-1.7 times of that of the straight port (12) of the feeding section or the straight port (32) of the discharging section.
3. A large belly polishing shaft with self-priming effect as in claim 1 wherein: the aperture of the large-belly cavity (21) is 1.7-2.5 times of that of the straight port (12) of the feeding section or the straight port (32) of the discharging section.
4. A large belly polishing shaft with self-priming effect as in claim 1 wherein: the aperture of the large-belly cavity (21) is 2.5-3.2 times of that of the straight port (12) of the feeding section or the straight port (32) of the discharging section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010712195.8A CN111617821B (en) | 2020-07-22 | 2020-07-22 | Big belly polishing shaft with self-priming effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010712195.8A CN111617821B (en) | 2020-07-22 | 2020-07-22 | Big belly polishing shaft with self-priming effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111617821A CN111617821A (en) | 2020-09-04 |
| CN111617821B true CN111617821B (en) | 2024-03-29 |
Family
ID=72256813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010712195.8A Active CN111617821B (en) | 2020-07-22 | 2020-07-22 | Big belly polishing shaft with self-priming effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111617821B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138522Y (en) * | 1992-09-30 | 1993-07-21 | 湖南省农业机械研究所 | Rice husking and whiting device |
| CN2320322Y (en) * | 1998-03-03 | 1999-05-26 | 浙江绍兴天力实业总公司 | Fan blowing rice polishing machine |
| DE10124113A1 (en) * | 2001-05-17 | 2002-12-05 | Valentin Meltser | Procedure for cereal heat treatment entails heating and cracking cereals in opposed heat transfer medium streams with defined heating speed and with through-flow in opposed streams maintained at defined rate |
| CN103495447A (en) * | 2013-10-17 | 2014-01-08 | 西安鑫谷玉米制品有限公司 | Automatic feedback adjusting system of corn peeling and degerming machine |
| CN207628470U (en) * | 2017-11-28 | 2018-07-20 | 赤壁市永祥粮食机械有限公司 | A kind of efficient cold wind rice mill |
| CN110773253A (en) * | 2019-10-30 | 2020-02-11 | 内蒙古农业大学 | Pneumatic buckwheat hulling device and hulling method thereof |
| CN212263341U (en) * | 2020-07-22 | 2021-01-01 | 福建众毅制造有限公司 | Big tripe polishing shaft of area self-priming effect |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9819398D0 (en) * | 1998-09-04 | 1998-10-28 | Garfield Int Invest Ltd | Pulveriser and method of pulverising |
-
2020
- 2020-07-22 CN CN202010712195.8A patent/CN111617821B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138522Y (en) * | 1992-09-30 | 1993-07-21 | 湖南省农业机械研究所 | Rice husking and whiting device |
| CN2320322Y (en) * | 1998-03-03 | 1999-05-26 | 浙江绍兴天力实业总公司 | Fan blowing rice polishing machine |
| DE10124113A1 (en) * | 2001-05-17 | 2002-12-05 | Valentin Meltser | Procedure for cereal heat treatment entails heating and cracking cereals in opposed heat transfer medium streams with defined heating speed and with through-flow in opposed streams maintained at defined rate |
| CN103495447A (en) * | 2013-10-17 | 2014-01-08 | 西安鑫谷玉米制品有限公司 | Automatic feedback adjusting system of corn peeling and degerming machine |
| CN207628470U (en) * | 2017-11-28 | 2018-07-20 | 赤壁市永祥粮食机械有限公司 | A kind of efficient cold wind rice mill |
| CN110773253A (en) * | 2019-10-30 | 2020-02-11 | 内蒙古农业大学 | Pneumatic buckwheat hulling device and hulling method thereof |
| CN212263341U (en) * | 2020-07-22 | 2021-01-01 | 福建众毅制造有限公司 | Big tripe polishing shaft of area self-priming effect |
Non-Patent Citations (1)
| Title |
|---|
| 康宁.能源时代新动力丛书 无限的原始能源 风能.北京工业大学出版社,2015,第236-237页. * |
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| CN111617821A (en) | 2020-09-04 |
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Effective date of registration: 20240226 Address after: 353000, No. 473 Gongye Road, Yanping District, Nanping City, Fujian Province Applicant after: FUJIAN ZHONGYI MANUFACTURING Co.,Ltd. Country or region after: China Address before: 350202 304, No. 16-1, Xinming East Road, Shouzhan village, Shouzhan Town, Changle District, Fuzhou City, Fujian Province Applicant before: Fuzhou Weiyou Technology Co.,Ltd. Country or region before: China |
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