CN102167219A - Screw conveyor - Google Patents
Screw conveyor Download PDFInfo
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- CN102167219A CN102167219A CN 201010115019 CN201010115019A CN102167219A CN 102167219 A CN102167219 A CN 102167219A CN 201010115019 CN201010115019 CN 201010115019 CN 201010115019 A CN201010115019 A CN 201010115019A CN 102167219 A CN102167219 A CN 102167219A
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- Prior art keywords
- helicallobe
- transporting device
- helix transporting
- pitch
- housing
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Abstract
The invention discloses a screw conveyor which comprises a shell (1) and a screw propeller (2) placed in the shell (1); a material inlet (3) and a material outlet (4) are formed at two ends of the shell (1) respectively; the screw propeller (2) comprises a shaft and at least three screw blades; and clearances are reserved between the outer edges of the screw blades and the inner wall of the shell (1). The screw blade comprises a first part and a second part, the screw blades of the first part are the screw blades close to the material inlet (3), the screw blades of the second part are the screw blades close to the material outlet (4), and the screw pitch of the screw blades of the second part is larger than that of the screw blades of the first part. The screw conveyor disclosed by the utility model can be used for remarkably overcoming the problem of material blockage in the shell, greatly reducing the time of shut down for cleaning, and further remarkably improving the production efficiency.
Description
Technical field
The present invention relates to a kind of helix transporting device.
Background technology
Helix transporting device is widely used in the mass transport of every field.Existing helix transporting device generally includes housing, worm propeller, inlet point and discharging opening; Worm propeller is positioned at housing, and inlet point and discharging opening are positioned at the two ends of housing; Worm propeller comprises axle and position helicallobe thereon, has the gap between the outer of helicallobe and the inwall of housing; And the pitch that all helicallobes form equates.Existing helix transporting device is owing to exist the gap between the inwall of the outer of helicallobe and housing, therefore, when convey materials, along with helicallobe is pushed ahead, the material by gravity drops on the inner walls, and only some is exported by discharging opening thereby cause the material that enters from inlet point; Along with material constantly enters housing from inlet point; material residual in the housing is cumulative, and causes the material accumulation between the helicallobe at the position nearer apart from discharging opening serious, finally causes worm propeller not work; must shut down and clear up, thereby reduce production efficiency widely.
Summary of the invention
The defective that material stops up takes place in order to overcome existing helix transporting device in the present invention easily in operational process, a kind of helix transporting device that material stops up that is not easy to take place is provided.
The invention provides a kind of helix transporting device, this helix transporting device comprises housing and worm propeller, described worm propeller is positioned at described housing, the two ends of described housing have inlet point and discharging opening, described worm propeller comprises axle and at least three helicallobes, there is the gap between the outer of described helicallobe and the inwall of described housing, wherein, described helicallobe comprises first and second portion, the helicallobe of described first is the helicallobe near described inlet point, the helicallobe of described second portion is the helicallobe near described discharging opening, and the pitch of the helicallobe of described second portion is greater than the pitch of the helicallobe of described first.
Helix transporting device provided by the invention since the pitch of discharge end helicallobe greater than the pitch of feed end helicallobe; improved the traffic capacity of helix transporting device at discharge end; therefore; described helix transporting device can obviously improve the material blockage problem in the described housing; significantly reduced and shut down the number of times of cleaning, and then significantly improved production efficiency.
Description of drawings
Fig. 1 represents the structural representation according to helix transporting device of the present invention;
Fig. 2 represents the structural representation of the helix transporting device of a preferred embodiment of the invention.
The specific embodiment
As shown in Figure 1, described helix transporting device provided by the invention comprises housing 1 and worm propeller 2, described worm propeller 2 is positioned at described housing 1, the two ends of described housing 1 have inlet point 3 and discharging opening 4, described worm propeller 2 comprises axle and at least three helicallobes, there is the gap between the inwall of the outer of described helicallobe and described housing 1, wherein, described helicallobe comprises first and second portion, the helicallobe of described first is the helicallobe near described inlet point 3, the helicallobe of described second portion is the helicallobe near described discharging opening 4, and the pitch of the helicallobe of described second portion is greater than the pitch of the helicallobe of described first.In the present invention, described pitch is meant the distance between the outer of two adjacent helicallobes.In helix transporting device of the present invention as shown in Figure 1, the pitch d of the helicallobe of close described discharging opening 4
2Obviously greater than pitch d near the helicallobe of described inlet point 3
1
In the present invention, as long as the pitch of the helicallobe of described second portion just can realize purpose of the present invention greater than the pitch of the helicallobe of described first, but in order further to reduce the generation probability of material latch up phenomenon in the described housing, can be optimized for the ratio of the pitch between the helicallobe of the pitch of the helicallobe of described second portion and described first.Pitch between the helicallobe of described first equates that perhaps the helicallobe of described first only forms a pitch; When pitch changes, along the direction of propulsion of material in described helix transporting device, the helicallobe that this pitch changes with and subsequent remaining helicallobe all belong to the helicallobe of described second portion.
A kind of preferred embodiment in, make the ratio of pitch of the helicallobe of the pitch of helicallobe of described first and each described second portion respectively do for oneself 1: 1.1-2, more preferably 1: 1.2-1.8.
In the present invention, the pitch of the helicallobe of described second portion can be identical or different, needs only the pitch greater than the helicallobe of described first.Yet, in actual production process, because along the direction of propulsion of material in described helix transporting device, approaching more described discharging opening, the material accumulation is serious more, therefore, as preferred embodiment a kind of, along the direction of propulsion of material in described helix transporting device, the pitch between the helicallobe of adjacent two described second portions increases progressively, and perhaps the pitch between the helicallobe of adjacent two described second portions of the part of close at least discharging opening increases progressively.The described amplification that increases progressively is not particularly limited, but in order more to help improving the problem of solid accumulation, as preferred embodiment a kind of,, the amplification that described pitch increases progressively is 0.1-40%, more preferably 1-20%, more preferably 2-10%.
In the present invention, the diameter of the helicallobe outer of described second portion usually with the equal diameters of the helicallobe outer of described first, but in order further to improve the problem of solid accumulation, as preferred embodiment a kind of, as shown in Figure 2, the diameter of the helicallobe outer of described second portion is greater than the diameter of the helicallobe outer of described first.Under further preferred situation, along the direction of propulsion of material in described helix transporting device, the diameter of described helicallobe outer increases progressively.There is no particular limitation for the described amplification that increases progressively, and is preferably 0.1-10%, more preferably 1-8%, more preferably 1.5-6%.
According to described helix transporting device provided by the invention, all there is no particular limitation for the size of the diameter of the size of the pitch of described helicallobe and described helicallobe outer, can suitably adjust according to the size of the helix transporting device of reality.In the preferred case, in order further to reduce material the probability stopped up takes place in described housing 1, the ratio of the diameter of described helicallobe outer and the pitch of described helicallobe is set at 1: 0.2-3, more preferably 1: 0.5-2.
According to described helix transporting device provided by the invention, the gap between the outer of described helicallobe and the inwall of described housing has no particular limits, and can suitably adjust according to the size of the helix transporting device of reality.Generally, the gap between the inwall of the outer of described helicallobe and described housing 1 can be preferably 0.5-4% for the 0.1-5% of the internal diameter of described housing 1.When the gap between the inwall of the outer of described helicallobe and described housing 1 less than the internal diameter of described housing 1 0.1% the time, because described worm propeller can produce certain skew in the process of operation, therefore, described helicallobe might produce with the inwall of described housing 1 and contact, thereby described housing is produced damage; When the gap between the inwall of the outer of described helicallobe and described housing 1 greater than the internal diameter of described housing 1 5% the time, this excessive clearance, to cause easier residual a large amount of material in the described housing, and then can improve the probability that obstruction takes place material greatly in described housing.
In described helix transporting device provided by the invention, described inlet point 3 and described discharging opening 4 are as long as guarantee to be arranged on the two ends of described housing 1, there is no particular limitation for concrete set-up mode, for example, described inlet point 3 and described discharging opening 4 can be set as the mode of Fig. 1, it is the feed end that described inlet point 3 is arranged on described helix transporting device, and the opening of described inlet point 3 up, described discharging opening 4 is arranged on the discharge end of described helix transporting device, and the opening of described discharging opening 4 down; Described inlet point 3 and described discharging opening 4 also can be set as the mode of Fig. 2, it is the feed end that described inlet point 3 is arranged on described helix transporting device, and the opening of described inlet point 3 up, described discharging opening 4 is arranged on the discharge end of described helix transporting device, and described discharging opening 4 is provided with opening along the mass transport direction in the described helix transporting device.
In described helix transporting device provided by the invention, there is no particular limitation for the quantity of described helicallobe, can suitably adjust according to demand of practical production, and generally, described helicallobe can be 5-40.
In the present invention, described worm propeller the axle shape be not particularly limited, can for this area worm propeller the axle Any shape, be preferably cylinder, perhaps helix.
The material of described housing 1 has no particular limits, and can suitably select at the material that is used for making housing of routine.For example, described housing can be formed from steel.
Also there is no particular limitation for the material of described worm propeller 2, can suitably select at the material that is used for making worm propeller of routine, and, the axle and the helicallobe of described worm propeller 1 can be made by identical or different material, for example, form the axle of described worm propeller and the material of helicallobe and can be 1Cr18Ni9Ti respectively separately.
The operation scheme of described helix transporting device provided by the invention is identical with existing helix transporting device, concrete, by described inlet point 3 material is added in the described housing 1, by actuating device the axle of described worm propeller 2 is rotated, described helicallobe is accompanied by described axle rotation, and with described mass transport to described discharging opening 4, and enter in the following process operation by described discharging opening 4.
In described helix transporting device provided by the invention, the pitch of discharge end helicallobe is greater than the pitch of feed end helicallobe, thereby improved the traffic capacity (the also amount of the maximum of the material that promptly can carry) of helix transporting device at discharge end.Therefore, though operation along with described helix transporting device, described material can have certain residual in described housing, but because the ability of the convey materials of discharge end helicallobe is greater than the ability of the convey materials of feed end helicallobe, thereby the helicallobe of described discharge end not only can go out the mass transport from the helicallobe of described feed end, but also have residual material transferred to ability in the helicallobe of back.Therefore, described helix transporting device provided by the invention can improve material phenomenon of blocking in the housing.
In the preferred case; when the pitch of the helicallobe in the described helix transporting device increases progressively along the direction of propulsion of material in described helix transporting device; along the direction of propulsion of material in described helix transporting device; the ability of the convey materials of described helicallobe also increases progressively; thereby can further reduce the generation probability of the interior material latch up phenomenon of housing of described helix transporting device; reduced and shut down the number of times of cleaning, and then enhanced productivity.
In further preferred embodiment, when the diameter of the helicallobe outer in the described helix transporting device and pitch all increase progressively along the direction of propulsion of material in described helix transporting device, the ability of the convey materials at the discharging opening place of feasible close described helix transporting device is bigger relatively, it is very low that the probability that obstruction thereby material in the housing of described helix transporting device can be taken place be reduced to, even can avoid material to stop up.
The following examples will the present invention is described further.
Embodiment 1
Present embodiment is used to illustrate helix transporting device provided by the invention.
The LS500 type helix transporting device that steps special cement machinery Co., Ltd available from Botou City is improved, and this helix transporting device comprises housing, worm propeller, actuating device, inlet point and discharging opening.In through the helix transporting device after improving, described worm propeller is made up of center shaft and 7 helicallobes, the axial length of described center shaft is 3.07 meters, the diameter of the helicallobe outer of described worm propeller is 500 millimeters, the outer of helicallobe and the spacing of described housing are 20 millimeters, along the direction of propulsion of material in described helix transporting device, pitch between first helicallobe and second helicallobe is 400 millimeters, and the pitch between the helicallobe of back increases progressively 35 millimeters successively.
Use the helix transporting device after the above-mentioned improvement to carry coal, concrete method comprises: the inlet point that coal is added to described helix transporting device with 12 tons/hour charging rates, the confession power of described actuating device is 4.0kW, and the rotating speed of described worm propeller is 40r/min.Operated in 1 hour, 12 hours, 24 hours, 48 hours and detected afterwards in 96 hours the discharging speed of the discharging opening of this helix transporting device respectively continuously, its result of a measurement is shown in Table 1.
Embodiment 2
Present embodiment is used to illustrate helix transporting device provided by the invention.
The LS500 type helix transporting device that steps special cement machinery Co., Ltd available from Botou City is improved, and this helix transporting device comprises housing, worm propeller, actuating device, inlet point and discharging opening.In through the helix transporting device after improving, described worm propeller is made up of center shaft and 7 helicallobes, the axial length of described center shaft is 3.07 meters, the diameter of described inner walls is 550 millimeters, along the direction of propulsion of material in described helix transporting device, the diameter of the described first helicallobe outer is 450 millimeters, and the diameter of the helicallobe outer of back increases progressively 10 millimeters successively; Pitch between first helicallobe and second helicallobe is 400 millimeters, and the pitch between the helicallobe of back increases progressively 35 millimeters successively.
Use the helix transporting device after the above-mentioned improvement to carry coal, concrete method comprises: the inlet point that coal is added to described helix transporting device with 12 tons/hour charging rates, the confession power of described actuating device is 4.0kW, and the rotating speed of described worm propeller is 40r/min.Operated in 1 hour, 12 hours, 24 hours, 48 hours and detected afterwards in 96 hours the discharging speed of the discharging opening of this helix transporting device respectively continuously, its result of a measurement is shown in Table 1.
Comparative Examples 1
Direct employing is carried coal available from the LS500 type helix transporting device of Botou City special cement machinery Co., Ltd advanced in years, and (pitch between the helicallobe equates and is 500 millimeters, the equal diameters of helicallobe outer and be 500 millimeters), concrete method comprises: the inlet point that coal is added to described helix transporting device with 12 tons/hour charging rates, the confession power of described actuating device is 4.0kW, and the rotating speed of described worm propeller is 40r/min.Operated in 1 hour, 12 hours, 24 hours, 48 hours and detected afterwards in 96 hours the discharging speed of the discharging opening of this helix transporting device respectively continuously, its result of a measurement is shown in Table 1.
Table 1
Annotate: discharging speed is that 0t/h represents that inner obstruction of described helix transporting device causes equipment out of service.
By table 1 as seen, obviously improved material blockage problem in the described helix transporting device middle shell according to helix transporting device of the present invention.
Claims (10)
1. helix transporting device, this helix transporting device comprises housing (1) and worm propeller (2), described worm propeller (2) is positioned at described housing (1), the two ends of described housing (1) have inlet point (3) and discharging opening (4), described worm propeller (2) comprises axle and at least three helicallobes, there is the gap between the inwall of the outer of described helicallobe and described housing (1), it is characterized in that, described helicallobe comprises first and second portion, the helicallobe of described first is the helicallobe near described inlet point (3), the helicallobe of described second portion is the helicallobe near described discharging opening (4), and the pitch of the helicallobe of described second portion is greater than the pitch of the helicallobe of described first.
2. helix transporting device according to claim 1, wherein, pitch between the helicallobe of each described first equates or the helicallobe of described first only forms a pitch, and the ratio of the pitch of the pitch of the helicallobe of described first and the helicallobe of each described second portion respectively does for oneself 1: 1.1-2.
3. helix transporting device according to claim 1 and 2, wherein, along the direction of propulsion of material in described helix transporting device, the pitch of described helicallobe increases progressively.
4. helix transporting device according to claim 3, wherein, the amplification that described pitch increases progressively is 0.1-40%.
5. helix transporting device according to claim 1 and 2, wherein, the diameter of the helicallobe outer of described second portion is greater than the diameter of the helicallobe outer of described first.
6. helix transporting device according to claim 5, wherein, along the direction of propulsion of material in described helix transporting device, the diameter of described helicallobe outer increases progressively.
7. helix transporting device according to claim 6, wherein, the amplification that the diameter of described helicallobe outer increases progressively is 0.1-10%.
8. helix transporting device according to claim 1, wherein, the diameter of described helicallobe outer is 1 with the ratio of the pitch of described helicallobe: 0.2-3.
9. helix transporting device according to claim 1, wherein, the gap between the inwall of the diameter of described helicallobe outer and described housing (1) is the 0.1-5% of the internal diameter of described housing (1).
10. helix transporting device according to claim 1, wherein, described helicallobe is 5-40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010115019 CN102167219A (en) | 2010-02-25 | 2010-02-25 | Screw conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010115019 CN102167219A (en) | 2010-02-25 | 2010-02-25 | Screw conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102167219A true CN102167219A (en) | 2011-08-31 |
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ID=44488580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010115019 Pending CN102167219A (en) | 2010-02-25 | 2010-02-25 | Screw conveyor |
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| Country | Link |
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| CN (1) | CN102167219A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111002A (en) * | 2016-08-24 | 2016-11-16 | 高佳太阳能股份有限公司 | A kind of feeding device of silicon carbide mortar blender |
| CN106879311A (en) * | 2017-02-10 | 2017-06-23 | 山西省农业科学院农产品加工研究所 | Small-sized flax thresher |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2356972Y (en) * | 1998-06-17 | 2000-01-05 | 董连伦 | Non-blocking screw conveyer |
| CN2380543Y (en) * | 1999-06-24 | 2000-05-31 | 山东日东造纸机械(集团)厂 | Screw shaft |
| CN201372106Y (en) * | 2009-03-12 | 2009-12-30 | 合加资源发展股份有限公司 | Helical conveyer using dual-pitch helix |
| CN101654185A (en) * | 2008-08-21 | 2010-02-24 | 钱尧翎 | Non-axis spiral blade |
| CN201793225U (en) * | 2010-02-25 | 2011-04-13 | 中粮集团有限公司 | Screw conveying device |
-
2010
- 2010-02-25 CN CN 201010115019 patent/CN102167219A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2356972Y (en) * | 1998-06-17 | 2000-01-05 | 董连伦 | Non-blocking screw conveyer |
| CN2380543Y (en) * | 1999-06-24 | 2000-05-31 | 山东日东造纸机械(集团)厂 | Screw shaft |
| CN101654185A (en) * | 2008-08-21 | 2010-02-24 | 钱尧翎 | Non-axis spiral blade |
| CN201372106Y (en) * | 2009-03-12 | 2009-12-30 | 合加资源发展股份有限公司 | Helical conveyer using dual-pitch helix |
| CN201793225U (en) * | 2010-02-25 | 2011-04-13 | 中粮集团有限公司 | Screw conveying device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111002A (en) * | 2016-08-24 | 2016-11-16 | 高佳太阳能股份有限公司 | A kind of feeding device of silicon carbide mortar blender |
| CN106879311A (en) * | 2017-02-10 | 2017-06-23 | 山西省农业科学院农产品加工研究所 | Small-sized flax thresher |
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Application publication date: 20110831 |
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