CN103552817B - A kind of special-shaped tube wall conveyor screw - Google Patents
A kind of special-shaped tube wall conveyor screw Download PDFInfo
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- CN103552817B CN103552817B CN201310524478.XA CN201310524478A CN103552817B CN 103552817 B CN103552817 B CN 103552817B CN 201310524478 A CN201310524478 A CN 201310524478A CN 103552817 B CN103552817 B CN 103552817B
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- conveying pipeline
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- helicallobe
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- 238000007599 discharging Methods 0.000 claims abstract description 18
- 230000007704 transition Effects 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Screw Conveyors (AREA)
Abstract
The present invention relates to a kind of special-shaped tube wall conveyor screw, it comprises horizontal feed conveyor pipe, level is coaxially arranged on the spiral propeller in conveying pipeline cavity, be communicated with the feeding mouth on top, conveying pipeline one end, be communicated with the discharging opening of conveying pipeline other end bottom, and power is connected to the motor of conveying pipeline near feeding mouth one end.Wherein, conveying pipeline comprises three sections and to be linked in sequence and internal diameter becomes large reduced diameter section cavity, transition phase cavity and enlarged diameter section cavity by feeding mouth gradually to discharging opening, reduced diameter section cavity cross-section shape is cylindric, transition phase cavity cross-section shape is large coniform of young tripe, the first half cross sectional shape of enlarged diameter section cavity is semicircle, and lower part cross sectional shape is half elliptic.Spiral propeller comprises S. A. and helicallobe, and helicallobe adopts constant pitch variable diameters form, leaves gap between helicallobe and reduced diameter section cavity, enlarged diameter section cavity inner wall.The present invention can realize continuous pulse free feed, weaken the impact of discharging impact on feed.
Description
Technical field
The present invention relates to a kind of conveyer, particularly about a kind of special-shaped tube wall conveyor screw for conveying powder body.
Background technology
Body of powder typically refers to the complex that particle diameter is less than 1mm discrete particle.Raw material and the fuel of manufacture of cement, metallurgy, firepower electrical plant and industrial coal powder boiler industry are body of powder.Conveyer should ensure that in conveying powder body process feed is stablized, and there is certain lock wind effect, therefore often adopt conveyor screw, because it not only has rational screw shaft structure, good sealing property, stable transfer rate, and hanging can also be reduced and reduce overshoot.
The structure of the conveyor screw used at present is mainly following two kinds of forms: 1) equal diameter, variable pitch; 2) constant pitch, variable diameters.The conveyor screw of these two kinds of versions is all the version by changing spiral, thus artificial raising body of powder is at the fullness coefficient of volute wall, to obtain the body of powder of higher volumes and density in single helical pitch, realizes downstream strength concentrated phase feed.In addition, the conveyor screw of these two kinds of versions reduces the gap between helicallobe and tube wall all as much as possible, thus the impact on Feed system and combustion systems is impacted in reduction discharging.But the conveyor screw of above two kinds of versions exists following two kinds of shortcomings: 1) cannot pulse free feed continuously, showing as in actual applications often rotates a circle realizes the feed of a helical pitch, i.e. discontinuous feed; 2) after Long-Time Service, tube wall and the skimming wear between helicallobe and body of powder cause the gap between tube wall and helicallobe to become large, thus affect discharging and lock wind.
Summary of the invention
For the problems referred to above, the object of this invention is to provide the special-shaped tube wall conveyor screw that a kind of continuous pulse free, low wearing and tearing and reduction discharging are impacted.
For achieving the above object, the present invention takes following technical scheme: a kind of special-shaped tube wall conveyor screw, it is characterized in that, it comprises: a horizontally disposed conveying pipeline, one level is coaxially arranged on the spiral propeller in described conveying pipeline cavity, the feeding mouth on one connection top, described conveying pipeline one end, the discharging opening of a described conveying pipeline other end bottom of connection, and a power is connected to the motor of described conveying pipeline near described feeding mouth one end; Wherein, described conveying pipeline comprises three sections and to be linked in sequence and internal diameter becomes large reduced diameter section cavity, transition phase cavity and enlarged diameter section cavity by described feeding mouth gradually to discharging opening, described reduced diameter section cavity cross-section shape is cylindric, described transition phase cavity cross-section shape is large coniform of young tripe, the first half cross sectional shape of described enlarged diameter section cavity is semicircle, and lower part cross sectional shape is half elliptic; Described spiral propeller comprises a S. A. and a helicallobe, and described helicallobe adopts constant pitch variable diameters form, leaves gap between described helicallobe and described reduced diameter section cavity, enlarged diameter section cavity inner wall.
Described conveying pipeline comprises a upper shell and a lower house, and described upper shell and lower house are bolted connection, and the upper portion of described enlarged diameter section cavity is in described upper shell, and the lower portion of described enlarged diameter section cavity is in described lower house.
Described conveying pipeline inwall arranges one for the wadding of the described conveying pipeline inwall that prevents from wearing and tearing.
Gap between described helicallobe and reduced diameter section cavity inner wall is 0.8 ~ 1.2mm, and the gap between described helicallobe and the enlarged diameter section cavity inner wall first half is the gap between 0.8 ~ 1.2mm and lower part is 5 ~ 20mm.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, because the present invention is under the prerequisite not changing helicallobe pitch, special-shaped tube wall spiral transferring material pipe is formed by the caliber that changes conveying pipeline and the diameter of helicallobe that coordinates with conveying pipeline, therefore fullness coefficient can not only be reduced, thus body of powder is moved to discharging opening continuously at the lower part of whole conveying pipeline, to realize continuous pulse free feed, and the discharging increased suddenly can be stopped, thus weaken the impact of discharging impact on feed.2, because conveying pipeline of the present invention adopts split manufacture, bolt connects, and is therefore easy for installation and maintenance.3, because the present invention arranges wear-resisting wadding at upper and lower conveying pipeline inwall, therefore only wear-resisting wadding need be changed after wearing and tearing.
Accompanying drawing explanation
Fig. 1 is integral structure schematic front view of the present invention
Fig. 2 is the A-A cross-sectional schematic of Fig. 1
Detailed description of the invention
Be described in detail of the present invention below in conjunction with drawings and Examples.
As shown in Figure 1 and Figure 2, the present invention includes conveying pipeline 1, spiral propeller 2, feeding mouth 3, discharging opening 4 and a motor 6.Conveying pipeline 1 is for being horizontally disposed with, and its top, one end is communicated with feeding mouth 3, and other end bottom is communicated with discharging opening 4.Conveying pipeline 1 comprises three sections and to be linked in sequence and internal diameter becomes large reduced diameter section cavity 11, transition phase cavity 12 and enlarged diameter section cavity 13 by feeding mouth 3 gradually to discharging opening 4, wherein reduced diameter section cavity 11 cross sectional shape is cylindric, transition phase cavity 12 cross sectional shape is large coniform of young tripe, the first half cross sectional shape of enlarged diameter section cavity 13 is semicircle, and lower part cross sectional shape is half elliptic.Spiral propeller 2 level is arranged in the cavity of conveying pipeline 1 coaxially, and it comprises S. A. 21 and a helicallobe 22, and helicallobe 22 adopts constant pitch variable diameters form, and namely the external diameter of helicallobe 22 changes along with the cavity internal diameter change of conveying pipeline 1.Motor 6 is fastenedly connected in conveying pipeline 1 one end near feeding mouth 3, and its output shaft rotation connects the S. A. 21 of spiral propeller 2.
In a preferred embodiment, one is arranged for preventing the wadding 5 of wearing and tearing conveying pipeline 1 inwall at conveying pipeline 1 inwall.
In a preferred embodiment, conveying pipeline 1 is combined by a upper shell 14 and a lower house 15, upper shell 14 and lower house 15 are bolted connection, and the upper portion of enlarged diameter section cavity 13 is in upper shell 14, and the lower portion of enlarged diameter section cavity 13 is in lower house 15.
In a preferred embodiment, helicallobe 22 in reduced diameter section cavity 11 and leave the gap of 0.8 ~ 1.2mm between the inwall of upper shell 14 and lower house 15, helicallobe 22 in enlarged diameter section cavity 13 and leave the gap of 0.8 ~ 1.2mm between the inwall of upper shell 14, and between the inwall of lower house 15, leave the gap of 5 ~ 20mm.
The following detailed description of use flow process of the present invention:
First feeding mouth 3 is passed through to conveying powder body in delivery pipe 1, body of powder flows under the influence of gravity between the helicallobe 22 in feeding mouth 3 lower small diameter section cavity 11, spiral propeller 2 rotates under the drive of motor 6, body of powder the propelling thrust of helicallobe 22, friction force and and delivery pipe 1 tube wall frictional force effect under move to the enlarged diameter section cavity 13 of helicallobe 22, arrive in enlarged diameter section cavity 13 helicallobe 22 after, move to discharging opening 4, until flow out from discharging opening 4 under it promotes further.After body of powder material enters cavity, at the gravity of material and with under the effect of conveying pipeline inwall friction force, the material being deposited in housing does not rotate with helicallobe 22, and only moves forward under helicallobe 22 promotes.
The various embodiments described above are only for illustration of the present invention; wherein the structure of each parts, connection mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (5)
1. a special-shaped tube wall conveyor screw, it comprises:
One horizontally disposed conveying pipeline,
One level is coaxially arranged on the spiral propeller in described conveying pipeline cavity,
The feeding mouth on one connection top, described conveying pipeline one end,
The discharging opening of the one described conveying pipeline other end bottom of connection,
And one power be connected to the motor of described conveying pipeline near described feeding mouth one end, it is characterized in that,
Wherein, described conveying pipeline comprises three sections and to be linked in sequence and internal diameter becomes large reduced diameter section cavity, transition phase cavity and enlarged diameter section cavity by described feeding mouth gradually to discharging opening, described reduced diameter section cavity cross-section shape is cylindric, described transition phase cavity cross-section shape is large coniform of young tripe, the first half cross sectional shape of described enlarged diameter section cavity is semicircle, and lower part cross sectional shape is half elliptic; Described spiral propeller comprises a S. A. and a helicallobe, and described helicallobe adopts constant pitch variable diameters form, leaves gap between described helicallobe and described reduced diameter section cavity, enlarged diameter section cavity inner wall.
2. a kind of special-shaped tube wall conveyor screw as claimed in claim 1, it is characterized in that, described conveying pipeline comprises a upper shell and a lower house, described upper shell and lower house are bolted connection, and the upper portion of described enlarged diameter section cavity is in described upper shell, and the lower portion of described enlarged diameter section cavity is in described lower house.
3. a kind of special-shaped tube wall conveyor screw as claimed in claim 1, is characterized in that, described conveying pipeline inwall arranges one for the wadding of the described conveying pipeline inwall that prevents from wearing and tearing.
4. a kind of special-shaped tube wall conveyor screw as claimed in claim 2, is characterized in that, described conveying pipeline inwall arranges one for the wadding of the described conveying pipeline inwall that prevents from wearing and tearing.
5. one abnormity tube wall conveyor screw as claimed in claim 1 or 2 or 3 or 4, it is characterized in that, gap between described helicallobe and reduced diameter section cavity inner wall is 0.8 ~ 1.2mm, and the gap between described helicallobe and the enlarged diameter section cavity inner wall first half is the gap between 0.8 ~ 1.2mm and lower part is 5 ~ 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310524478.XA CN103552817B (en) | 2013-10-30 | 2013-10-30 | A kind of special-shaped tube wall conveyor screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310524478.XA CN103552817B (en) | 2013-10-30 | 2013-10-30 | A kind of special-shaped tube wall conveyor screw |
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| Publication Number | Publication Date |
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| CN103552817A CN103552817A (en) | 2014-02-05 |
| CN103552817B true CN103552817B (en) | 2016-04-13 |
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| CN201310524478.XA Active CN103552817B (en) | 2013-10-30 | 2013-10-30 | A kind of special-shaped tube wall conveyor screw |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532727A (en) * | 2014-12-22 | 2015-04-22 | 无锡锡通工程机械有限公司 | Vertical hot material lifting device for road hot regeneration |
| CN105318574A (en) * | 2015-02-07 | 2016-02-10 | 成都奥能普科技有限公司 | Solid particle line-focusing solar light-heat converter |
| CN106522976A (en) * | 2016-12-16 | 2017-03-22 | 徐工集团凯宫重工南京有限公司 | Reducing spiral conveying device for shield tunneling machine |
| CN108861665B (en) * | 2018-07-09 | 2024-03-29 | 宜昌新宜运机械有限公司 | Anti-blocking cavity conveying device |
| CN110817297B (en) * | 2018-08-14 | 2021-11-30 | 上海宇源机械有限公司 | Anti-sticking screw conveyer |
| CN111303924B (en) * | 2019-12-13 | 2024-11-05 | 张勇 | Automatic aggregate type pyrolysis and carbonization device and pyrolysis and carbonization automatic aggregate method |
| CN114052497A (en) * | 2021-11-13 | 2022-02-18 | 上海宝霆智能科技有限公司 | Solid particle feeding device of beverage machine and beverage machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1320169C (en) * | 1989-02-20 | 1993-07-13 | Gavin Semple | Auger |
| CN2883266Y (en) * | 2006-02-23 | 2007-03-28 | 西安蓝鑫建材新技术有限公司 | Tapered spiral feeder |
| CN103159012A (en) * | 2011-12-09 | 2013-06-19 | 中粮营养健康研究院有限公司 | Screw feeder |
| CN203558460U (en) * | 2013-10-30 | 2014-04-23 | 煤炭科学研究总院 | Special pipe wall screw conveyor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04298409A (en) * | 1991-03-28 | 1992-10-22 | Kubota Corp | Screw feeder |
| JP2005138919A (en) * | 2003-11-04 | 2005-06-02 | Plibrico Japan Co Ltd | Continuously blending and mixing volumetric feeder for refractory material |
-
2013
- 2013-10-30 CN CN201310524478.XA patent/CN103552817B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1320169C (en) * | 1989-02-20 | 1993-07-13 | Gavin Semple | Auger |
| CN2883266Y (en) * | 2006-02-23 | 2007-03-28 | 西安蓝鑫建材新技术有限公司 | Tapered spiral feeder |
| CN103159012A (en) * | 2011-12-09 | 2013-06-19 | 中粮营养健康研究院有限公司 | Screw feeder |
| CN203558460U (en) * | 2013-10-30 | 2014-04-23 | 煤炭科学研究总院 | Special pipe wall screw conveyor |
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| CN103552817A (en) | 2014-02-05 |
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Effective date of registration: 20170122 Address after: Beijing Caiyu Economic Development Zone 102606 Beijing city Daxing District Long Yu Caiyu Town Street No. 5 Patentee after: CHINA COAL RESEARCH INSTITUTE (CCRI) ENERGY SAVING TECHNOLOGY CO.,LTD. Address before: 100013 Chaoyang District, Hepingli Youth Ditch Road, No. 5, No. Patentee before: CCTEG CHINA COAL Research Institute |
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Address after: 102606 No.5, Yulong Street, Caiyu Economic Development Zone, Caiyu Town, Daxing District, Beijing Patentee after: Beijing Tiandi Sunac Technology Co.,Ltd. Address before: 102606 No.5, Yulong Street, Caiyu Economic Development Zone, Caiyu Town, Daxing District, Beijing Patentee before: CHINA COAL RESEARCH INSTITUTE (CCRI) ENERGY SAVING TECHNOLOGY CO.,LTD. |