CN112678449A - Double-screw conveyor - Google Patents
Double-screw conveyor Download PDFInfo
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- CN112678449A CN112678449A CN202011486111.XA CN202011486111A CN112678449A CN 112678449 A CN112678449 A CN 112678449A CN 202011486111 A CN202011486111 A CN 202011486111A CN 112678449 A CN112678449 A CN 112678449A
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- spiral conveying
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- 239000000463 material Substances 0.000 claims abstract description 38
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
A twin screw conveyor comprising: the device comprises a driving device, a shaftless spiral conveying mechanism, a shafted spiral conveying mechanism, a feeding hole and a discharging pipe; shaftless screw conveyor constructs includes: the spiral blade bearing device comprises a cavity, a shaftless spiral blade arranged in the cavity and a lining for bearing the shaftless spiral blade; the shaft-containing spiral conveying mechanism is arranged at the bottom of the shaftless spiral conveying mechanism close to the tail end in parallel, and the length of the shaft-containing spiral conveying mechanism is one part of the shaftless spiral conveying mechanism; the upper part of the shaft-mounted spiral conveying mechanism is communicated with the bottom of the cavity of the shaftless spiral conveying mechanism; the feed inlet is arranged at the head end of the cavity; the driving device is arranged at the tail end of the cavity, the shaftless spiral blade of the shaftless spiral conveying mechanism is close to the central shaft of the shaftless spiral conveying mechanism, and the two spiral blades do not collide with each other when rotating. The invention can simultaneously realize the purposes of sealing the discharge port, preventing the material from being blocked easily and crushing the material and realizing the long-distance transportation.
Description
Technical Field
The invention belongs to the technical field of material conveying equipment, and particularly relates to a double-screw conveyor.
Background
The spiral conveyor is divided into a shaft spiral conveyor and a shaftless spiral conveyor in the conveying form, and is divided into a U-shaped spiral conveyor and a tubular spiral conveyor in the appearance. The working principle of the screw conveyor is that a rotating screw blade pushes materials to convey the materials. The shaftless screw conveyor is suitable for non-viscous dry powder materials and small particle materials (such as cement, fly ash, lime, grains and the like), and the shaftless screw conveyor is suitable for conveying viscous and easy-to-wind materials. When the screw shaft rotates, the materials can only move forwards along the bottom of the conveyor under the pushing of the blades due to the gravity of the materials and the friction force generated between the materials and the wall of the groove body. In order to place the screw shafts in a favorable tension, the drive and discharge openings are generally placed at the same end of the conveyor, with the feed opening being located as close as possible to the end of the other end.
Shaftless screw conveyer possesses long distance transport's ability, but when the material was carried the end, because helical blade's upper end is open, and the center does not have the axle, the material is difficult to block up wherein, but the material also is difficult to hold pressure, and the extrusion force is weak, can only pass through great export at the end, drops through the material dead weight. Therefore, the shaftless screw conveying has the defects that the discharging capacity of the discharging port is weak, the materials are difficult to crush in the discharging port, and the working efficiency is low.
The shaft screw conveyer is provided with a closed pipe sleeved outside the shaft screw conveyer, so that the materials can be stored and extruded out through a smaller outlet through extrusion force to form a closed material seal. However, the phenomenon that the material is blocked in the shaft screw conveyor is easy to occur, and the shaft screw conveyor cannot finish long-distance transportation because the central shaft is processed very long and is easily non-concentric and has great processing difficulty.
Therefore, for the transportation of materials in a long distance, the outlet of the materials is in a sealed state, and the purpose that the materials are not blocked and can be crushed to a certain extent is desired, the above-mentioned screw conveyer with the shaft and the screw conveyer without the shaft can not achieve the purpose.
Disclosure of Invention
The invention aims to solve the technical problem of providing a double-screw conveyor which can simultaneously realize the purposes of sealing a discharge port, preventing materials from being blocked easily, crushing the materials and conveying the materials for a longer distance.
The invention is realized by the following steps:
a twin screw conveyor comprising: the device comprises a driving device, a shaftless spiral conveying mechanism, a shafted spiral conveying mechanism, a feeding hole and a discharging pipe;
the shaftless screw conveying mechanism comprises: the spiral blade bearing device comprises a cavity, a shaftless spiral blade arranged in the cavity and a lining for bearing the shaftless spiral blade;
the shaftless spiral conveying mechanism is arranged at the bottom close to the tail end of the shaftless spiral conveying mechanism in parallel, and the length of the shaftless spiral conveying mechanism is one part of the shaftless spiral conveying mechanism;
the upper part of the shaft-mounted spiral conveying mechanism is communicated with the bottom of the cavity of the shaftless spiral conveying mechanism;
the feed inlet is arranged at the head end of the cavity; the driving device is arranged at the tail end of the cavity,
a shaftless spiral blade of the shaftless spiral conveying mechanism is close to a central shaft of the shafted spiral conveying mechanism; the shaftless spiral blade of the shaftless spiral conveying mechanism and the spiral blade of the shaftless spiral conveying mechanism have the same outer diameter and shape and are mutually staggered, and the two spiral blades do not collide with each other when rotating;
the tail end of the shaft-mounted spiral conveying mechanism is connected with the discharge pipe, and materials are extruded through the discharge pipe.
Furthermore, the cavity of the part of the shaftless screw mechanism, which is close to the tail end of the screw blade and is vertically arranged with the screw blade of the shafted screw conveying mechanism, is in a shape of 8, and the two screw blades are wrapped.
Further, at least 1 helical blade at the end of the shaftless helical blade has a central shaft and is connected with the driving device through the central shaft, thereby driving the other shaftless helical blades connected with the central shaft to rotate.
Furthermore, the tail end of the discharge pipe is connected to a feed port of drying equipment, so that the feed port is kept sealed and airtight during feeding.
Further, the driving device includes: a drive motor and a gear box; the rotary motion of the shaftless spiral conveying mechanism and the rotary motion of the shafted spiral conveying mechanism are driven by the driving motor and the gear box, so that the rotating speeds of the spiral shafts are ensured to be consistent.
The invention has the advantages that:
1. the long-distance conveying of materials can be realized.
2. The material can be crushed and stirred moderately.
3. The material is not easy to block.
4. Forming a sealed material seal.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a sectional view a-a in fig. 1.
Fig. 3 is a sectional view B-B in fig. 1.
Fig. 4 is a cross-sectional view taken along line C-C of fig. 1.
Fig. 5 is a schematic view of the rotation of the gears in the present invention.
Detailed Description
As shown in fig. 1 to 4, a double-screw conveyor includes: a shaftless screw conveying mechanism 1 and a shafted screw conveying mechanism 2.
the shaftless spiral conveying mechanism 2 is arranged at the bottom of the shaftless spiral conveying mechanism 1 close to the tail end in parallel, and the length of the shaftless spiral conveying mechanism 2 is one part of the shaftless spiral conveying mechanism 1;
the upper part of the shaft-mounted spiral conveying mechanism 2 is communicated with the bottom of the cavity of the shaftless spiral conveying mechanism 1;
the feed inlet 3 is arranged at the head end of the cavity 11, and the discharge pipe 4 is arranged at the tail end of the cavity 11.
The shafted spiral conveying mechanism 2 is arranged at a position below a section of shaftless spiral blade 12 close to the outlet pipe mouth 4; the helical blade 12 of the shaftless helical conveying mechanism 1 is close to the central shaft of the shafted helical conveying mechanism 2; the shaftless screw blade 12 of the shaftless screw conveying mechanism 1 is consistent with the screw blade of the shaftless screw conveying mechanism 2 in external diameter and shape. The driving device 5 is arranged at the tail end of the cavity 11. The driving device 5 includes: a drive motor 51 and a gear box 52; the rotary motion of the shaftless screw conveyor 1 and the shafted screw conveyor 2 is driven by a drive motor 51 and a gear box 52. An upper gear 521 and a lower gear 522 are arranged in the gear box 52, the upper gear 521 and the lower gear 522 respectively drive the two types of helical rotating blades to rotate, the two types of helical rotating blades rotate in opposite directions (as shown in fig. 5), and are staggered with each other, and the two types of helical blades cannot collide with each other when rotating.
The 1-3 helical blades at the tail end of the shaftless helical blade 12 are provided with a central shaft 121 and are connected with the driving device 5 through the central shaft 121, so that other shaftless helical blades connected with the central shaft are driven to rotate.
The cavity 11 outside the shaftless helical blade 12 is U-shaped, and a cavity cover plate 14 is arranged on the cavity. (in particular practice, the cavity 11 outside the shaftless helical blade 12 may also be O-shaped). The cavity of the part of the shaftless screw mechanism 1 close to the screw blade at the tail end and the part of the screw blade of the shafted screw conveying mechanism 2 which are arranged up and down are in a 8 shape, and the two screw blades are wrapped.
The tail end of the shaft-mounted spiral conveying mechanism 2 is connected with a discharge pipe 4, and materials are extruded through the discharge pipe 4.
During operation, the end of the discharge pipe 4 can be connected to a feed inlet of a drying device, so that the feed inlet is kept sealed and airtight during feeding.
The working process is as follows: the material is put into through feed inlet 3 of shaftless screw conveyor 1, and drive arrangement 5 drives shaftless screw conveyor 1 and has a screw conveyor 2 to rotate, lets the material from the feed end toward the end to carry, and when the material reached the end, shaftless screw conveyor 1 and the shaftless screw conveyor 2 that has below it were interactive, can carry out certain stirring and breakage with the material on the one hand, can pass through scraping each other of helical blade again, has guaranteed that the center pin of lower extreme does not block up. After a certain pressure is built up in the discharge pipe 4, the pipe end of the discharge pipe 4 is extruded.
The invention can simultaneously realize the purposes of sealing the discharge port, preventing the material from being blocked easily and crushing the material and realizing the long-distance transportation.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.
Claims (5)
1. A double-screw conveyor is characterized in that: the method comprises the following steps: the device comprises a driving device, a shaftless spiral conveying mechanism, a shafted spiral conveying mechanism, a feeding hole and a discharging pipe;
the shaftless screw conveying mechanism comprises: the spiral blade bearing device comprises a cavity, a shaftless spiral blade arranged in the cavity and a lining for bearing the shaftless spiral blade;
the shaftless spiral conveying mechanism is arranged at the bottom close to the tail end of the shaftless spiral conveying mechanism in parallel, and the length of the shaftless spiral conveying mechanism is one part of the shaftless spiral conveying mechanism;
the upper part of the shaft-mounted spiral conveying mechanism is communicated with the bottom of the cavity of the shaftless spiral conveying mechanism;
the feed inlet is arranged at the head end of the cavity; the driving device is arranged at the tail end of the cavity,
a shaftless spiral blade of the shaftless spiral conveying mechanism is close to a central shaft of the shafted spiral conveying mechanism; the shaftless spiral blade of the shaftless spiral conveying mechanism and the spiral blade of the shaftless spiral conveying mechanism have the same outer diameter and shape and are mutually staggered, and the two spiral blades do not collide with each other when rotating;
the tail end of the shaft-mounted spiral conveying mechanism is connected with the discharge pipe, and materials are extruded through the discharge pipe.
2. A twin screw conveyor as in claim 1 wherein: the cavity of the part of the shaftless screw mechanism, which is close to the screw blade at the tail end and is vertically arranged with the screw blade of the shafted screw conveying mechanism, is in a shape of 8, and the two screw blades are wrapped.
3. A twin screw conveyor as in claim 1 wherein: at least 1 helical blade at the tail end of the shaftless helical blade is provided with a central shaft and is connected with the driving device through the central shaft, so that other shaftless helical blades connected with the central shaft are driven to rotate.
4. A twin screw conveyor as in claim 1 wherein: the tail end of the discharge pipe is connected to a feed port of drying equipment, so that the feed port is kept sealed and airtight during feeding.
5. A twin screw conveyor as defined in claim 1 or 2 wherein: the driving device includes: a drive motor and a gear box; the rotary motion of the shaftless spiral conveying mechanism and the rotary motion of the shafted spiral conveying mechanism are driven by the driving motor and the gear box, so that the rotating speeds of the spiral shafts are ensured to be consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011486111.XA CN112678449A (en) | 2020-12-16 | 2020-12-16 | Double-screw conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011486111.XA CN112678449A (en) | 2020-12-16 | 2020-12-16 | Double-screw conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112678449A true CN112678449A (en) | 2021-04-20 |
Family
ID=75448128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011486111.XA Pending CN112678449A (en) | 2020-12-16 | 2020-12-16 | Double-screw conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112678449A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113428586A (en) * | 2021-06-18 | 2021-09-24 | 长兴悍将环保机械制造有限公司 | High-temperature wear-resistant shaftless screw conveyor |
| CN114852605A (en) * | 2022-03-02 | 2022-08-05 | 安尼康（福建）环保设备有限公司 | Many discharge gates screw conveyer |
| CN115539979A (en) * | 2022-09-22 | 2022-12-30 | 国能龙源环保有限公司 | Coal-fired boiler synergistic solid waste resource utilization uniform mixing coupling co-combustion system and method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5368153A (en) * | 1987-05-19 | 1994-11-29 | Spirac Engineering Ab | Transportation device having a driven shaftless spiral freely fitted in a casing and resting thereon |
| AT5458U1 (en) * | 2001-08-06 | 2002-07-25 | Kalkgruber Solar Und Umwelttec | DEVICE FOR DISCHARGING WOOD PELLETS FROM A WAREHOUSE |
| JP2005008393A (en) * | 2003-06-20 | 2005-01-13 | Taihei Kiko:Kk | Screw conveyor without shaft and its manufacturing method |
| CN202508584U (en) * | 2012-04-20 | 2012-10-31 | 成都玉龙化工有限公司 | Double-layer screw conveying device |
| CN203306628U (en) * | 2013-06-15 | 2013-11-27 | 山东恒远利废技术发展有限公司 | Paste screw elevator |
| CN204197876U (en) * | 2014-10-30 | 2015-03-11 | 湖州核宏机械有限公司 | Shaftless screw conveyor structure after improvement |
| CN204384298U (en) * | 2014-12-05 | 2015-06-10 | 徐州三原环境工程有限公司 | Draining double-shaft spiral conveyer |
| CN105366296A (en) * | 2014-08-08 | 2016-03-02 | 谭宏伟 | Shaftless two-screw conveyer |
| CN205397296U (en) * | 2016-02-22 | 2016-07-27 | 郑州纽路普科技有限公司 | Area is broken encircles and front end confined shaftless double helix material conveyer |
| CN207078761U (en) * | 2017-03-14 | 2018-03-09 | 四川天农农资有限公司 | A kind of high efficient anti-blocking helix transporting device |
| CN207932497U (en) * | 2017-12-25 | 2018-10-02 | 北矿磁材科技有限公司 | A kind of double helix conveying device |
| CN214568503U (en) * | 2020-12-16 | 2021-11-02 | 安尼康（福建）环保设备有限公司 | Double-screw conveyor |
-
2020
- 2020-12-16 CN CN202011486111.XA patent/CN112678449A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5368153A (en) * | 1987-05-19 | 1994-11-29 | Spirac Engineering Ab | Transportation device having a driven shaftless spiral freely fitted in a casing and resting thereon |
| AT5458U1 (en) * | 2001-08-06 | 2002-07-25 | Kalkgruber Solar Und Umwelttec | DEVICE FOR DISCHARGING WOOD PELLETS FROM A WAREHOUSE |
| JP2005008393A (en) * | 2003-06-20 | 2005-01-13 | Taihei Kiko:Kk | Screw conveyor without shaft and its manufacturing method |
| CN202508584U (en) * | 2012-04-20 | 2012-10-31 | 成都玉龙化工有限公司 | Double-layer screw conveying device |
| CN203306628U (en) * | 2013-06-15 | 2013-11-27 | 山东恒远利废技术发展有限公司 | Paste screw elevator |
| CN105366296A (en) * | 2014-08-08 | 2016-03-02 | 谭宏伟 | Shaftless two-screw conveyer |
| CN204197876U (en) * | 2014-10-30 | 2015-03-11 | 湖州核宏机械有限公司 | Shaftless screw conveyor structure after improvement |
| CN204384298U (en) * | 2014-12-05 | 2015-06-10 | 徐州三原环境工程有限公司 | Draining double-shaft spiral conveyer |
| CN205397296U (en) * | 2016-02-22 | 2016-07-27 | 郑州纽路普科技有限公司 | Area is broken encircles and front end confined shaftless double helix material conveyer |
| CN207078761U (en) * | 2017-03-14 | 2018-03-09 | 四川天农农资有限公司 | A kind of high efficient anti-blocking helix transporting device |
| CN207932497U (en) * | 2017-12-25 | 2018-10-02 | 北矿磁材科技有限公司 | A kind of double helix conveying device |
| CN214568503U (en) * | 2020-12-16 | 2021-11-02 | 安尼康（福建）环保设备有限公司 | Double-screw conveyor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113428586A (en) * | 2021-06-18 | 2021-09-24 | 长兴悍将环保机械制造有限公司 | High-temperature wear-resistant shaftless screw conveyor |
| CN113428586B (en) * | 2021-06-18 | 2022-09-27 | 长兴悍将环保机械制造有限公司 | High-temperature wear-resistant shaftless screw conveyor |
| CN114852605A (en) * | 2022-03-02 | 2022-08-05 | 安尼康（福建）环保设备有限公司 | Many discharge gates screw conveyer |
| CN115539979A (en) * | 2022-09-22 | 2022-12-30 | 国能龙源环保有限公司 | Coal-fired boiler synergistic solid waste resource utilization uniform mixing coupling co-combustion system and method |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210420 |
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| RJ01 | Rejection of invention patent application after publication |