CN103043444B - Rotary feeder with air seal device and air seal method for rotary feeder - Google Patents
Rotary feeder with air seal device and air seal method for rotary feeder Download PDFInfo
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- CN103043444B CN103043444B CN201310023845.8A CN201310023845A CN103043444B CN 103043444 B CN103043444 B CN 103043444B CN 201310023845 A CN201310023845 A CN 201310023845A CN 103043444 B CN103043444 B CN 103043444B
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- rotary feeder
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- air
- sealing mechanism
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Abstract
The invention discloses a rotary feeder with an air seal device. The rotary feeder comprises a casing and a rotor which is arranged in the casing. An annular gap is formed between the outer circumferential face on the end portion of the rotor and the inner circumferential face of the casing, and a seal cavity is formed between the end face of the rotor and the inner circumferential face of the casing and the inner face of an end cover. An air inlet joint communicated to the seal cavity is arranged on the casing or the end cover, an annular air groove is opened on the outer circumferential face on the end portion of the rotor, and a pore channel communicated with the seal cavity and the annular air groove is arranged on the rotor. The invention further discloses an air seal method for the rotary feeder. Air is fed into the seal cavity and enters the annular air groove through the pore channel, so that air flows distributed evenly along the circumferential face of the rotor are generated in the annular gap, and the directions of the air flows face toward the middle of the rotor. According to the rotary feeder with the air seal device and an air seal method for the rotary feeder, powder in materials can be effectively prevented from penetrating into the gaps between the rotor and the casing and between the rotor and the end cover, and accordingly, the service life of the feeder is increased.
Description
Technical field
The invention belongs to the technical field of pneumatic transport equipment, relate to a kind of rotary feeder, specifically refer to a kind of rotary feeder with gas sealing mechanism, the invention still further relates to a kind of vapor seal method of rotary feeder.
Background technology
In prior art, rotary feeder is as a kind of feeding device that can evenly, quantitatively carry, be used widely in the batching delivery system of all conglomeraties such as building materials, metallurgy, chemical industry, electric power at present, it also can use as the ash-discharging device of dust exhaustor, air preheater simultaneously.Rotary feeder is generally made up of housing, rotor, end cap; in use often there will be machine phenomenon stuck suddenly; not only reduce the service life of rotary feeder like this, the more important thing is the continuity, homogeneity and the stability that have impact on delivery system.Rotary feeder why can unexpected abnormality, mainly because of machine in the running, its housing is dynamic mated condition with rotor, coordinating between rotor with end cap, rubbing to ensure that dynamic and static part is unlikely, requiring the gap that the end face of the end face of the periphery of rotor and the internal face of stationary housings and rotor and static end cap keeps suitable.Just because of there are these gaps in rotary feeder, when powder material enters from inlet point, dust tiny in material just easily penetrates in these gaps, even penetrates into Bearing inner by these gaps, has had a strong impact on safety and the persistence of bearing use.Along with the powder extruded in gap increases, rotary feeder occurs suddenly that in operational process stuck problem just becomes regular event.
For the sealing problem of rotary feeder, people have done a large amount of technology explorations, and wherein a kind of measure is exactly reduce housing and rotor, gap between rotor and end cap.Although the powder that this method can stop a part of granularity larger infiltrates, but easily cause strong friction when powder that is minimum and hard enters into gap, be more prone on the contrary cause rotary feeder stuck, and along with the prolongation of time, gap also can be worn increasing and can not get repairing, and is difficult to the effect reaching anticipation.A kind of measure is separately had to be install seal ring additional, although this mode to solve sealing problem, it is short-term, because seal ring is easily worn along with the operation of rotary feeder, need often to change, also still had a strong impact on continuation, reliability that rotary feeder runs.
Above-mentioned discussion content object be to reader introduce may to below by the various aspects of technology relevant for the various aspects of the present invention be described and/or advocate, believe that this discussion content contributes to for reader with background's information, to be conducive to understanding various aspects of the present invention better, therefore, should be appreciated that it is discuss to read these with this angle, instead of admit prior art.
Summary of the invention
The object of the invention is to avoid deficiency of the prior art and a kind of rotary feeder with gas sealing mechanism is provided, it can stop the powder in material to penetrate in rotor and housing, gap between rotor and end cap effectively, improves the service life of loader.Present invention also offers a kind of vapor seal method of above-mentioned rotary feeder.
Object of the present invention is achieved through the following technical solutions:
A kind of rotary feeder with gas sealing mechanism is provided, the rotor comprising housing and arrange in the housing, housing upper is provided with inlet point, bottom is provided with discharging opening, the outer peripheral face of rotor is provided with circumferentially well-distributed blade, the material the rotor recesses being transported to discharging opening that receive inlet point is formed between blade and blade, the end of rotor is provided with transmission shaft, transmission shaft is arranged in the end cap of housing rotationally, the outer peripheral face of described rotor tip and the inner peripheral surface of housing form the gap of annular, the end face of described rotor and the inner peripheral surface of housing, sealed chamber is formed between the inner face of end cap, housing or end cap are provided with the inlet suction port being communicated to sealed chamber, the outer peripheral face of described rotor tip offers annular gas tank, rotor is provided with the air vent channel of communication seals chamber and annular gas tank.
Wherein, described rotor comprises Seal end plate, and described annular gas tank and air vent channel are arranged on Seal end plate.
Wherein, described air vent channel is at least two, is along the circumferential direction arranged on Seal end plate equably.
Wherein, the two ends of described rotor are provided with transmission shaft.
Wherein, the bottom of described housing is provided with the cleaning door be communicated with sealed chamber, and cleaning door is connected with plug.
Wherein, bearing is provided with between described transmission shaft and end cap.
Wherein, the angle of the axial line of described air vent channel and the axial line of rotor is less than 90 °.
Wherein, described blade is parallel side blade, tiltedly blade or arc line shaped blade.
A kind of encapsulating method of rotary feeder is provided, described rotary feeder is rotary feeder as above, by injecting gas in sealed chamber, gas enters into annular gas tank from air vent channel, thus produce in the gap of described annular along rotor circumference face well-distributed air-flow, and the direction of air-flow is towards the middle part of rotor.
Wherein, the tolerance of injecting gas is 0.4-40 cubic meter per hour.
Beneficial effect of the present invention: owing to have employed above-mentioned structure, the present invention in use, the gas with certain pressure is passed in sealed chamber, gas enters into annular gas tank from air vent channel, produce along rotor circumference face well-distributed air-flow in the gap of described annular, and air flow line is contrary with the direction that powder infiltrates gap, in the gap utilizing the recoil effect of air-flow can effectively stop powder to penetrate between housing rotor, thus play good sealing function.
Accompanying drawing explanation
The invention will be further described to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any limitation of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to the following drawings.
Fig. 1 is the structural representation of the rotary feeder with gas sealing mechanism.
Fig. 2 is the cutaway view of the rotary feeder with gas sealing mechanism.
Fig. 3 is the structural representation of Seal end plate.
Detailed description of the invention
Technical scheme of the present invention is understood better in order to make those skilled in the art, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, it should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Core of the present invention is a kind of vapor seal method providing rotary feeder with gas sealing mechanism and rotary feeder, it can stop the powder in material to penetrate in rotor and housing, gap between rotor and end cap effectively, improves the service life of loader.
As shown in Figure 1 to Figure 3, the rotary feeder with gas sealing mechanism of the present invention, the rotor 2 comprising housing 1 and arrange within the case 1.Housing 1 top is provided with inlet point 3, and bottom is provided with discharging opening 4.The outer peripheral face of rotor 2 is provided with circumferentially well-distributed blade 5, forms rotor recesses 6 between blade and blade, and when rotor rotates in housing, rotor recesses 6 receives the material of inlet point 3 and is transported to discharging opening 4, realizes evenly, quantitatively carrying.Described blade can be parallel side blade or tiltedly blade or arc line shaped blade.Rotor 2 two ends are provided with transmission shaft 7, and certainly, also only rotor 2 one end can be provided with transmission shaft 7, transmission shaft 7 is arranged in the end cap 8 of housing 1 rotationally, is provided with bearing 15 between described transmission shaft 7 and end cap 8.The described outer peripheral face of rotor 2 end and the inner peripheral surface of housing 1 form the gap of annular, form sealed chamber 9 between the inner face of the end face of described rotor 2 and the inner peripheral surface of housing 1, end cap 8, and sealed chamber 9 is cylindrical structure substantially.Housing 1 or end cap 8 are provided with the inlet suction port 10 being communicated to sealed chamber 9, the outer peripheral face of described rotor 2 end offer annular gas tank 11, rotor 2 is provided with the air vent channel 12 of communication seals chamber 9 and annular gas tank 11.The angle of the axial line of described air vent channel 12 and the axial line of rotor 2 is less than 90 °, and as being chosen as 45 degree, the air-flow entering into annular gas tank 11 from air vent channel 12 like this can form eddy flow, make distribution of gas in annular gas tank 11 evenly.Concrete, described rotor 2 comprises Seal end plate 13, and Seal end plate 13 is arranged on the two ends of rotor 2, and described annular gas tank 11 and air vent channel 12 are arranged on Seal end plate 13, and Seal end plate 13 is connected with rotor 2 by bolt.Every block Seal end plate 13 is provided with at least two described air vent channels 12, concrete, the quantity of air vent channel 12 can be three, five or other numbers, and each air vent channel 12 is along the circumferential direction arranged on Seal end plate 13 equably.
The bottom of described housing 1 is provided with the cleaning door 14 be communicated with sealed chamber 9, and cleaning door 14 is connected with plug.Even if there is a small amount of powder to enter into sealed chamber in operational process, powder can be cleared up in time by opening plug.
The present invention in use, before the electric motor starting of rotary feeder, first the gas with certain pressure and tolerance is switched in the sealed chamber of rotary feeder by the gas joint in sealed chamber, the compressed gas entered in sealed chamber enters into air drain by the air vent channel on Seal end plate, because air drain is arranged on the periphery of Seal end plate, wholely uniform air pressure is circumferentially had to exist at it, when passing through in the annular gap formed by rotary feeder housing and rotor, well-distributed air-flow can be produced along the periphery of rotor, direction is penetrated along the generatrix direction in rotor circumference face to two ends, direction is towards the blanking center of loader, another direction is towards sealed chamber, but the annular gap that housing is formed with rotor is communicated with sealed chamber, the compressed gas entering sealed chamber also can enter in this gap, thus air-flow out can be stoped in air drain to sealed chamber's end flowing, therefore final air flow line is all the time towards blanking center, can effectively prevent powder material from penetrating in bearing space, thus play good sealing effectiveness.In addition, although constantly run along with rotary feeder, annular gap can strengthen gradually because of wearing and tearing, and too large change can not occur for the distribution of air-flow and direction, and therefore the sealing property of rotary feeder can not be affected.
In sealed chamber during injecting gas, as tolerance is too little, can not form one deck and stop that powder infiltrates air film layer, sealing effectiveness is poor; As tolerance is too large, loader powder outlet quantity can be had a strong impact on again.Therefore, the tolerance of preferred injecting gas is 0.4-40 normal cubic meter per hour, so both can ensure sealing effectiveness, also can not cause having a strong impact on to loader powder outlet quantity.
Set forth a lot of detail in description above so that fully understand the present invention, but the present invention can also adopt other to be different from other modes described here and implement, and therefore, can not be interpreted as limiting the scope of the invention.
In a word; those skilled in the art although the present invention illustrates above-mentioned preferred implementation, should illustrate, although can carry out various change and remodeling; unless such change and remodeling deviate from scope of the present invention, otherwise all should be included in protection scope of the present invention.
Claims (10)
1. the rotary feeder with gas sealing mechanism, comprise housing (1) and be arranged on the rotor (2) in housing (1), housing (1) top is provided with inlet point (3), bottom is provided with discharging opening (4), the outer peripheral face of rotor (2) is provided with circumferentially well-distributed blade (5), the material the rotor recesses (6) being transported to discharging opening (4) that receive inlet point (3) is formed between blade and blade, the end of rotor (2) is provided with transmission shaft (7), transmission shaft (7) is arranged in the end cap (8) of housing (1) rotationally, it is characterized in that: the outer peripheral face of described rotor (2) end and the inner peripheral surface of housing (1) form the gap of annular, the end face of described rotor (2) and the inner peripheral surface of housing (1), sealed chamber (9) is formed between the inner face of end cap (8), housing (1) or end cap (8) are provided with the inlet suction port (10) being communicated to sealed chamber (9), the outer peripheral face of described rotor (2) end offers annular gas tank (11), rotor (2) is provided with the air vent channel (12) of communication seals chamber (9) and annular gas tank (11).
2. the rotary feeder with gas sealing mechanism according to claim 1, is characterized in that: described rotor (2) comprises Seal end plate (13), and described annular gas tank (11) and air vent channel (12) are arranged on Seal end plate (13).
3. the rotary feeder with gas sealing mechanism according to claim 2, is characterized in that: described air vent channel (12) is at least two, is along the circumferential direction arranged on equably on Seal end plate (13).
4. the rotary feeder with gas sealing mechanism according to claim 1 or 2 or 3, is characterized in that: the two ends of described rotor (2) are provided with transmission shaft (7).
5. the rotary feeder with gas sealing mechanism according to claim 1 or 2 or 3, is characterized in that: the bottom of described housing (1) is provided with the cleaning door (14) be communicated with sealed chamber (9), and (14) are connected with plug to cleaning door.
6. the rotary feeder with gas sealing mechanism according to claim 1 or 2 or 3, is characterized in that: be provided with bearing (15) between described transmission shaft (7) and end cap (8).
7. the rotary feeder with gas sealing mechanism according to claim 1 or 2 or 3, is characterized in that: the angle of the axial line of described air vent channel (12) and the axial line of rotor (2) is less than 90 °.
8. the rotary feeder with gas sealing mechanism according to claim 1 or 2 or 3, is characterized in that: described blade (5) is parallel side blade, tiltedly blade or arc line shaped blade.
9. the encapsulating method of a rotary feeder, described rotary feeder is the rotary feeder such as according to any one of claim 1 to 6, it is characterized in that: by injecting gas in sealed chamber (9), gas enters into annular gas tank (11) from air vent channel (12), thus produce in the gap of described annular along rotor circumference face well-distributed air-flow, and the direction of air-flow is towards the middle part of rotor (2).
10. encapsulating method according to claim 9, is characterized in that: the tolerance of injecting gas is 0.4-40 cubic meter per hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310023845.8A CN103043444B (en) | 2013-01-23 | 2013-01-23 | Rotary feeder with air seal device and air seal method for rotary feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310023845.8A CN103043444B (en) | 2013-01-23 | 2013-01-23 | Rotary feeder with air seal device and air seal method for rotary feeder |
Publications (2)
| Publication Number | Publication Date |
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| CN103043444A CN103043444A (en) | 2013-04-17 |
| CN103043444B true CN103043444B (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310023845.8A Active CN103043444B (en) | 2013-01-23 | 2013-01-23 | Rotary feeder with air seal device and air seal method for rotary feeder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516215A (en) * | 2018-12-03 | 2019-03-26 | 江苏科技大学 | A kind of high pressure air sealed bulk material rotary feeder and its application method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059942B (en) * | 2015-07-10 | 2017-09-15 | 新奥科技发展有限公司 | A kind of high pressure star feeding system |
| CN105173743B (en) * | 2015-10-27 | 2018-08-03 | 哈尔滨电站设备成套设计研究所有限公司 | Drum-type batcher, work and encapsulating method |
| CN107010366A (en) * | 2016-12-10 | 2017-08-04 | 瑞安市阀门厂 | Do not give fat Novel rotary sealing valve |
| CN113734488B (en) * | 2021-09-10 | 2023-02-03 | 章丘华明水泥新型建材有限公司 | Discharging mechanism for mortar packaging machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB775910A (en) * | 1955-01-26 | 1957-05-29 | Simon Ltd Henry | Improvements relating to rotary air seals |
| GB2246753B (en) * | 1990-07-06 | 1994-03-09 | Waeschle Maschf Gmbh | Rotary bulk material feeder |
| JP3354643B2 (en) * | 1993-07-20 | 2002-12-09 | 三菱重工業株式会社 | Rotary valve |
| CN2729411Y (en) * | 2004-09-12 | 2005-09-28 | 徐希才 | Air curtain sealed bearing block |
| CN2885414Y (en) * | 2006-04-26 | 2007-04-04 | 陈增春 | Air curtain type annular seal for tubular type tube mill |
| CN203064814U (en) * | 2013-01-23 | 2013-07-17 | 广东海洋大学 | Rotary feeder with airtight device |
-
2013
- 2013-01-23 CN CN201310023845.8A patent/CN103043444B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516215A (en) * | 2018-12-03 | 2019-03-26 | 江苏科技大学 | A kind of high pressure air sealed bulk material rotary feeder and its application method |
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| CN103043444A (en) | 2013-04-17 |
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