CN1228002C - Method and device for material screening and pneumatic lifting - Google Patents
Method and device for material screening and pneumatic lifting Download PDFInfo
- Publication number
- CN1228002C CN1228002C CN 03132156 CN03132156A CN1228002C CN 1228002 C CN1228002 C CN 1228002C CN 03132156 CN03132156 CN 03132156 CN 03132156 A CN03132156 A CN 03132156A CN 1228002 C CN1228002 C CN 1228002C
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- casing
- riser
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Abstract
The present invention discloses a method of separation and airlifting of materials and a device thereof. The device is composed of a vertical lift pipe and a separator box, wherein the separator box is arranged on the upper part of the lift pipe and communicated with the lift pipe. An upward airflow whose wind speed is higher than the floating velocity of lifted materials is kept inside the vertical lift pipe and the separator box. When the materials are lifted into the lift pipe, impurities with high floating velocities fall along through an end opening of the lift pipe, useful materials with low floating velocities are lifted into the separation box by the airflow to fall, namely that the separation and airlifting of the materials are finished simultaneously.
Description
Technical field
The present invention relates to the method for a kind of material airlift and sorting, be particularly useful for tobacco production line is carried out foreign matter sorting and vertical-lift to bulk materials such as tobacco products.
Background technology
On tobacco production line, because the difference of the difference of height of equipment import and export and production floor, tobacco product often needs to carry out the lifting of certain altitude in process of production.In addition, often be mixed with many foreign material in the tobacco product, as metal, stone etc., when some PROCESS FOR TREATMENT, also can produce some foreign matters in addition, separate as leaf stalk and in pipe tobacco, can produce stalk when clean and sign, expanded cut tobacco can produce caking etc. when producing, and these foreign matters can have a negative impact to the production process and the product quality of cigarette, therefore must adopt certain process that these foreign material are sorted out.
Tobacco product method for improving commonly used at present has two kinds: mechanical lifting and strength are carried.
The mechanical lifting equipment investment is big, maintenance capacity is big, and can produce Lou material, makes bad phenomenon such as broken.Though strength is carried and to be had distant fed distance, conveying air velocity is bigger, can produce bigger make broken.
Summary of the invention
The purpose of this invention is to provide a kind of material airlift and method for separating and device, the material that is used for the bulk material production process promotes, and can carry out the foreign matter sorting to material simultaneously.Use technical method provided by the invention, for example be used for the material sorting and the lifting of tobacco product, can reduce the production cost of cigarette effectively, improve the economic benefit of tobacco productive corporation.
The present invention realizes with following technical scheme: the method for this material airlift and sorting, be at the vertical-lifting pipe and be positioned at above the vertical-lifting pipe, carried out with separating in the casing of vertical-lifting pipe top connection the bottom, the cross-sectional area of casing and vertical section are long-pending all greater than the cross-sectional area of riser, in riser, remaining air-flow vertically upward, after the material for the treatment of sorting enters riser, floating velocity falls by the opening below the riser greater than the object of uprush wind speed, floating velocity rises with uprush less than the object of uprush wind speed, when material enter with vertically upward air-flow separate the casing certain altitude after, owing to separate the cross-sectional area of the cross-sectional area of casing greater than riser, separate that wind speed in the casing then reduces and less than the floating velocity of object, enter the object and the flow separation of separating casing and freely fall, the conveying equipment below the separated casing is seen off.The vertical-lifting pipe is 1 with separating casing cross-sectional area ratio: 3.5-6, vertical-lifting pipe cross-sectional area is 1 with the ratio that separates the casing vertical sectional area: 3.5-6, the wind speed in the vertical-lifting pipe is slightly larger than the floating velocity that is raised object.
In lifting process, because of the wind speed in the riser is slightly larger than the floating velocity that is raised object, is raised object and is actually in the separation casing that wafts, therefore can not produce and make broken phenomenon.By regulating the wind speed of uprush in the riser, can finish the purpose that different objects is separated.
A kind of device that is used for material airlift and method for separating, by a riser that vertically is provided with and be positioned at the riser top, the bottom is formed with the casing that separates of riser top connection, one side of riser has charging aperture, is connected with apparatus for feeding, and the bottom is uncovered with blanking; The top of separating casing has exhaust outlet, and the equipment of air-flow is connected exhaust outlet with providing vertically upward by exhaust duct.
Advantage of the present invention and effect:
1, owing to lifting and the sorting finished simultaneously material, equipment has than higher service efficiency.
2, owing to adopted lower lifting wind speed, little to the material injury, do not produce make broken.
3, because wind speed is low, and the air quantity of demand is little, energy consumption is low.
4, device structure is simple, and is reliable, and fault is few, and maintenance is simple, and cost is low.
5, floor space is little, and flexibility is good, can be used for the multiple occasion on the multiple production line more easily.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail.
Fig. 1 is a schematic diagram of the present invention;
Fig. 2 is an equipment schematic diagram of the present invention.
Among the figure, 1. apparatus for feeding, 2. the vertical-lifting pipe 3. separates casing, 4. discharging equipment, 5. exhaust duct, 6. deduster, 7. blower fan, 8. observation window, arrow is depicted as airflow direction.
The specific embodiment
With reference to Fig. 1, when material after the charging aperture of vertical-lifting pipe (2) enters the riser, material falls after being floated upwardly in the separator box with vertically upward air-flow, and heavy foreign material then fall in the under shed of riser (2), have finished the lifting and the sorting of material simultaneously.
Be to improve gas material separating effect, the horizontal cross-sectional area that separates casing (3) is controlled to be 3.5～6 times of cross-sectional area of vertical-lifting pipe (2), separate the long-pending cross-sectional area for vertical-lifting pipe (2) of the vertical vertical section of casing (3) 3.5～6 times.
With reference to Fig. 2, this device comprises a vertical-lifting pipe (2), side at riser (2) has a charging aperture to be communicated with apparatus for feeding (1), the upper shed of riser (2) is communicated with the bottom of separating casing (3), the top of separating casing (3) is connected with deduster (6) with blower fan (7) with exhaust duct (5), blower fan (7) is opened the back and is provided negative pressure for lifting means, i.e. air-flow vertically upward.The bottom device that separates casing (3) has the conveying device (4) of convey materials, for material situation in the convenient observation casing, also is provided with observation window (8) in the present embodiment.Blower fan (7), exhaust duct (5) are that riser (2), separation casing (3) provide air-flow upwards, and its wind speed can be regulated as required.
Exhaust duct (5) is connected dedusting with deduster (6) on the production line.Blower fan (7) can be taked frequency control, to adjust wind speed and the interior wind speed of vertical-lifting pipe (2) that separates in the casing (3).Also can on exhaust duct (5), install the method for a damper additional, to adjust wind speed and the interior wind speed of vertical-lifting pipe (2) that separates in the casing (3).
Its course of work promotes to divide with tobacco elects example as, stalk is signed and the pipe tobacco of other foreign material is sent in the vertical-lifting pipe (2) by apparatus for feeding (1) when containing, under the effect of uprush, at first carry out sorting, because floating velocities such as stalk label, foreign material are greater than the object of uprush wind speed, therefore can overcome the influence of uprush, the opening by vertical-lifting pipe (2) bottom falls; The floating velocity of pipe tobacco is slightly less than the uprush wind speed, therefore taken away by uprush, be thus lifted to a predetermined altitude along vertical-lifting pipe (2) and enter separation casing (3), owing to divide the cross section of the cross section of high casing (3) much larger than vertical-lifting pipe (2), wind speed in the separation casing (3) is less than the floating velocity of pipe tobacco, enter the object and the flow separation of separating casing (3), freely fall, sent by discharging equipment (4) and separate casing (3).
Claims (3)
1, the method of a kind of material airlift and sorting, it is characterized in that at the vertical-lifting pipe and be positioned at above the vertical-lifting pipe, carried out with separating in the casing of vertical-lifting pipe top connection the bottom, the long-pending cross-sectional area of the cross-sectional area of casing and vertical section greater than riser, in riser, remaining air-flow vertically upward, after the material for the treatment of sorting enters riser, floating velocity falls by the opening below the riser greater than the material of uprush wind speed, floating velocity rises with uprush less than the object of uprush wind speed, when material enter with vertically upward air-flow separate the casing certain altitude after, owing to separate the cross-sectional area of the cross-sectional area of casing greater than riser, wind speed in the separation casing reduces to be lower than the floating velocity of material, the material and the flow separation that enter casing freely fall, and the conveying equipment below the separated casing is seen off.
2, a kind of material airlift according to claim 1 and method for separating is characterized in that the vertical-lifting pipe is 1 with separating casing cross-sectional area ratio: 3.5-6, the vertical-lifting pipe cross-sectional area ratio long-pending with separating the casing vertical section is 1: 3.5-6.
3, a kind of device that is used for described material airlift of claim 1 and separation method, it is characterized in that by a riser (2) that vertically is provided with and be positioned at riser (2) top, the bottom is formed with the casing (3) that separates of riser top connection, one side of riser (2) has charging aperture, charging aperture is communicated with apparatus for feeding (1), and the bottom is uncovered to be blanking port; The top of separating casing (3) has exhaust outlet, and gas flow equipment is connected exhaust outlet with providing vertically upward by exhaust duct (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132156 CN1228002C (en) | 2003-06-30 | 2003-06-30 | Method and device for material screening and pneumatic lifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132156 CN1228002C (en) | 2003-06-30 | 2003-06-30 | Method and device for material screening and pneumatic lifting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1478430A CN1478430A (en) | 2004-03-03 |
| CN1228002C true CN1228002C (en) | 2005-11-23 |
Family
ID=34154012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03132156 Expired - Lifetime CN1228002C (en) | 2003-06-30 | 2003-06-30 | Method and device for material screening and pneumatic lifting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1228002C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016121B (en) * | 2007-02-08 | 2011-01-26 | 卓卫民 | Flexible pneumatic conveying production line for tobacco materials |
| CN108160524B (en) * | 2017-12-15 | 2024-01-09 | 常熟市百联自动机械有限公司 | Automatic removing device for different-color velvet |
-
2003
- 2003-06-30 CN CN 03132156 patent/CN1228002C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1478430A (en) | 2004-03-03 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20051123 |
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| CX01 | Expiry of patent term |