CN107010421A - A kind of structure for preventing Geldart-D particle bent wear, apparatus and method - Google Patents
A kind of structure for preventing Geldart-D particle bent wear, apparatus and method Download PDFInfo
- Publication number
- CN107010421A CN107010421A CN201710370229.8A CN201710370229A CN107010421A CN 107010421 A CN107010421 A CN 107010421A CN 201710370229 A CN201710370229 A CN 201710370229A CN 107010421 A CN107010421 A CN 107010421A
- Authority
- CN
- China
- Prior art keywords
- transporting elbow
- geldart
- particle
- protection pipe
- elbow
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
- B65G53/523—Wear protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/042—Granular material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Air Transport Of Granular Materials (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention discloses a kind of structure for preventing Geldart-D particle bent wear, apparatus and method.The structure includes curved transporting elbow, and at least one piece air permeable plate is studded with described transporting elbow；Curved protection pipe is provided with the outer cover of described transporting elbow; it is tightly connected between the two ends of the protection pipe and described transporting elbow; and the internal diameter of the protection pipe is more than the transporting elbow, so as to form sealed tubular cavity between the protection pipe and transporting elbow；The gas tube connected with tubular cavity is additionally provided with described protection pipe.The transporting elbow of Pneumatic conveyer uses said structure.And pneumatic conveying method then uses above-mentioned Pneumatic conveyer, including following operation：The insufflation gas into tubular cavity, pass the gas through air permeable plate and enter in transporting elbow, form the air cushion layer that resistance strength is washed away, and pipeline is directly hit and rub to reduce powder and granule shape material.The present invention has the advantages that no flow dead and intracavitary material stock, not blocked.
Description
Technical field
The invention belongs to bulk material Geldart-D particle field, and in particular to a kind of to prevent the knot of Geldart-D particle bent wear
Structure, apparatus and method.
Background technology
Geldart-D particle is conveying powdered in the duct and particulate solid material the method for energy using gas.In transfer
Shock and friction of the bulk granular material to tube wall are the main causes for causing pipe wear.Powder grain material enters bend pipe, by
The impact wear to tube wall is produced in the change of mobile conveying direction, therefore bend pipe is part most easy to wear, the abrasion of bend pipe
Higher than more than 50 times of straight tube.
The research of abrasion is caused to be sufficiently spread out on material impact or friction inside pipe wall both at home and abroad, Mason bend pipes
Wear test shows that the position of abrasion generally occurs at as shown in Figure 1 22 °（On the outside of A）, 45 °（On the inside of B）With 70 °~80 °（C
Outside）.Learnt, when being hit with 20 °~30 ° of angle, worn and torn the most serious with wear extent experimental relationship according to angle of impingement, and
Vertically（90°）Reduced on the contrary during shock, at the bend pipe 45° angle on the inside of abrasion mainly as produced by the impact of swirl flow.
At present, the measure for reducing bent wear is mainly concentrated in terms of bend pipe selection and two, structure：In bend pipe selection side
Face, such as bent tube section are additional on the outside of the significant elbow that will wear and tear easily to change from high-abrasive material or filling high-abrasive material manufacture
Liner plate or pipe bent position position easy to wear is thickeied etc.；In terms of bend pipe structure, in the flow direction manufacture for needing to turn
One " cavity ", the obstructed T-shaped bend pipe in such as oval elbow, spherical elbow, box body shape corner, one end, it is to avoid Geldart-D particle
Powder-granule material directly impact cause erosion of wall, but there is the deficiencies such as flow dead, intracavitary material stock, blocking in these structures.
The content of the invention
For deficiencies of the prior art, the present invention provide a kind of structure for preventing Geldart-D particle bent wear,
Apparatus and method, it is intended to solve bend pipe and there is the technical problems such as flow dead, intracavitary material stock, blocking.
To achieve these goals, the technical solution adopted by the present invention is as follows：
It is a kind of to prevent the structure of Geldart-D particle bent wear, including curved transporting elbow, inlayed on described transporting elbow
There is at least one piece air permeable plate；Described transporting elbow outer cover be provided with curved protection pipe, the two ends of the protection pipe with
It is tightly connected between described transporting elbow, and the internal diameter of the protection pipe is more than the transporting elbow, so that the protection pipe
Sealed tubular cavity is formed between transporting elbow；The inflation connected with tubular cavity is additionally provided with described protection pipe
Pipe, for being inflated into tubular cavity.
Further, micropore, a diameter of 5 μm of the micropore are spread all on described air permeable plate.
Further, described air permeable plate is made up of multilayer metal sintering net.
Further, the transporting elbow is in 90 ° of circular arcs, and described air permeable plate is three pieces, is separately positioned on transporting elbow
20 ° ~ 30 ° regions of outer arc, 40 ° ~ 50 ° regions in 70 ° ~ 80 ° regions of outer arc and inner arc.
Further, described protection pipe include two it is symmetrical and section is semicircular curved on plane where axial line
Pipe, two sections are that semicircular bend pipe is fastened and connected, and sealing flange is provided with fastening.
Further, rabbeted between the two ends of the protection pipe and described transporting elbow by blind plate and sealed.
Further, described gas tube is provided with ventilating control valve, the pressure for controlling insufflation gas.
Further, one end of the transporting elbow is the connectivity part of Geldart-D particle entrance, the air inlet pipe and transporting elbow
Central angle positioned at Geldart-D particle entrance one end is at 15 °.
A kind of Pneumatic conveyer, the transporting elbow of the device prevents the structure of Geldart-D particle bent wear using above-mentioned.
It is a kind of to prevent the pneumatic conveying method of bent wear, conveyed using above-mentioned Pneumatic conveyer bulk powder or
Granular material, including following operation：The insufflation gas into tubular cavity, make the pressure in tubular cavity be more than in transporting elbow
Pressure, passes the gas through air permeable plate and enters in transporting elbow, the air cushion layer that resistance strength is washed away is formed, to reduce powder and granule shape material
Directly hit and the pipeline that rubs.
Compared with prior art, the present invention has the advantages that：
1st, by setting bend pipe set in the strong region of Geldart-D particle bent wear, the shape between Geldart-D particle bend pipe and bend pipe set
Into gas cell, it can be formed by adjusting aeration quantity and Air permenbility and be higher than conveying impact forces maximum 3-5% in transporting elbow
Gasbag pressure, gas unidirectional disperse in air bag is overflow into delivery pipe.
2nd, by inlaying air permeable plate, convey the strong region of impact wear in air-flow and form the air cushion that resistance strength is washed away
Layer, can avoid powder and granule shape material from directly hitting and rub pipeline, the purpose for eliminating Geldart-D particle bent wear be reached, while not
There are problems that prior art flow dead,.
Brief description of the drawings
The abrading section of Fig. 1-tradition bend pipe；
The orthogonal view of Fig. 2-present invention；
The cross-sectional view of Fig. 3-present invention；
In accompanying drawing 2,3：1- transporting elbows；2- protection pipes；3- gas tubes；4- sealing flanges；6- air permeable plates；7- tubular cavities.
Embodiment
The present invention is described in further detail with reference to specific embodiment.
First, it is a kind of to prevent the structure of Geldart-D particle bent wear, as shown in Figure 2,3, including curved transporting elbow 1,
At least one piece air permeable plate 6 is studded with described transporting elbow 1；It is provided with curved in the outer cover of described transporting elbow 1
Protection pipe 2, is tightly connected between the two ends of the protection pipe 2 and described transporting elbow 1, and the internal diameter of the protection pipe 2 is more than
The transporting elbow 1, so as to form sealed tubular cavity 7 between the protection pipe 2 and transporting elbow 1；Described protection pipe 2
On be additionally provided with the gas tube 3 connected with tubular cavity 7, for into tubular cavity 7 inflate.
As optimization, micropore, a diameter of 5 μm of the micropore are spread all on described air permeable plate 6.
As optimization, described air permeable plate 6 is made up of multilayer metal sintering net.
As optimization, the transporting elbow 1 is in 90 ° of circular arcs, and described air permeable plate 6 is three pieces, is separately positioned on conveying curved
20 ° ~ 30 ° regions of outer arc, 40 ° ~ 50 ° regions in 70 ° ~ 80 ° regions of outer arc and inner arc of pipe 1.
As optimization, described protection pipe 2 include two it is symmetrical and section is semicircular on plane where axial line
Bend pipe, two sections are that semicircular bend pipe is fastened and connected, and sealing flange 4 is provided with fastening.
As optimization, rabbeted between the two ends of the protection pipe 2 and described transporting elbow 1 by blind plate and sealed.
As optimization, described gas tube 3 is provided with ventilating control valve, the pressure for controlling insufflation gas.
As optimization, one end of the transporting elbow 1 is Geldart-D particle entrance, the air inlet pipe and the company of transporting elbow 1
Central angle of the logical place positioned at Geldart-D particle entrance one end is at 15 °.
2nd, a kind of Pneumatic conveyer, the transporting elbow 1 of the device prevents Geldart-D particle bend pipe 1 from wearing and tearing using above-mentioned
Structure.
3rd, it is a kind of to prevent the pneumatic conveying method of bent wear, bulk powder is conveyed using above-mentioned Pneumatic conveyer
Material or granular material, including following operation：The insufflation gas into tubular cavity 7, make the pressure in tubular cavity 7 be more than conveying curved
Pressure in pipe 1, passes the gas through air permeable plate 6 and enters in transporting elbow 1, forms the air cushion layer that resistance strength is washed away, to reduce
Powder and granule shape material directly hits and rubbed pipeline.
4th, embodiment
As shown in Figure 2 and Figure 3, including the air permeable plate 6 that is embedded on the wall of transporting elbow 1, wherein the radius of curvature of two pieces of air permeable plates 6
It is suitable with the outer arc radius of transporting elbow 1,20 ° ~ 30 ° regions of outer arc and 70 ° ~ 80 ° regions of transporting elbow 1 are embedded in respectively, it is another
The radius of curvature of block air permeable plate 6 is suitable with the interior arc radius of transporting elbow 1, is embedded in 40 ° ~ 50 ° regions of inner arc of transporting elbow 1；
Protection pipe 2 is connected to two semicircle bend pipes of sealing flange 4 by inside and outside arc-welding, is sleeved on transporting elbow 1, interior outer arc side is used
Sealing flange 4 locks tight bolt seal, the two ends blind plate interlocking sealing being welded on the outside of transporting elbow 1；In protection pipe 2
An air inlet pipe is welded with, it is at 15 ° that the air inlet pipe, which is located at Geldart-D particle arrival end central angle,.So in transporting elbow 1 and guarantor
A tubular cavity 7 that can be inflated is formed between pillar 2, can be by adjusting the inflation entered from air inlet pipe in tubular cavity 7
The Air permenbility of air permeable plate 6 in amount and the wall of transporting elbow 1, forms the gasbag pressure higher than conveying impact forces maximum 3 ~ 5%,
Gas unidirectional disperse in tubular cavity 7 is overflow into delivery pipe, form the air cushion layer that resistance strength is washed away, be prevented effectively from granular
Material directly hits and rubbed pipeline, reaches the purpose for eliminating the abrasion of Geldart-D particle bend pipe 1.
Designed present invention is specifically directed to convey bulk powder or granular material using gas, can effectively prevent feeding pipe network
The abrasion of bend pipe is turned in system.The present invention's prevents the structure of abrasion, apparatus and method to be applied to other classes
As in system.
The above embodiment of the present invention is only example to illustrate the invention, and is not the implementation to the present invention
The restriction of mode.For those of ordinary skill in the field, other can also be made not on the basis of the above description
With the change and variation of form.Here all embodiments can not be exhaustive.It is every to belong to technical scheme
Row of the obvious changes or variations amplified out still in protection scope of the present invention.
Claims (10)
1. a kind of prevent the structure of Geldart-D particle bent wear, including curved transporting elbow, it is characterised in that described
At least one piece air permeable plate is studded with transporting elbow；Curved protection pipe, the guarantor are provided with the outer cover of described transporting elbow
It is tightly connected between the two ends of pillar and described transporting elbow, and the internal diameter of the protection pipe is more than the transporting elbow, with
Make to form sealed tubular cavity between the protection pipe and transporting elbow；It is additionally provided with described protection pipe and tubular cavity
The gas tube of connection, for being inflated into tubular cavity.
2. according to claim 1 prevent the structure of Geldart-D particle bent wear, it is characterised in that on described air permeable plate
Spread all over micropore, a diameter of 5 μm of the micropore.
3. according to claim 2 prevent the structure of Geldart-D particle bent wear, it is characterised in that described air permeable plate is
Multilayer metal sintering net is made.
4. according to claim 1 prevent the structure of Geldart-D particle bent wear, it is characterised in that the transporting elbow is in
90 ° of circular arcs, described air permeable plate is three pieces, is separately positioned on 20 ° ~ 30 ° regions of outer arc, 70 ° ~ 80 ° areas of outer arc of transporting elbow
40 ° ~ 50 ° regions in domain and inner arc.
5. according to claim 1 prevent the structure of Geldart-D particle bent wear, it is characterised in that described protection pipe bag
Include two it is symmetrical and section is semicircular bend pipe on plane where axial line, two sections are semicircular bend pipe button
Connection is closed, sealing flange is provided with fastening.
6. according to claim 1 prevent the structure of Geldart-D particle bent wear, it is characterised in that the two of the protection pipe
Rabbeted between end and described transporting elbow by blind plate and sealed.
7. according to claim 1 prevent the structure of Geldart-D particle bent wear, it is characterised in that described gas tube is set
Ventilating control valve is equipped with, the pressure for controlling insufflation gas.
8. according to claim 1 prevent the structure of Geldart-D particle bent wear, it is characterised in that the transporting elbow
One end is Geldart-D particle entrance, and the central angle that the connectivity part of the air inlet pipe and transporting elbow is located at Geldart-D particle entrance one end is
At 15 °.
9. a kind of Pneumatic conveyer, it is characterised in that the transporting elbow of the device is prevented using claim 1-8 is any described
The only structure of Geldart-D particle bent wear.
10. a kind of prevent the pneumatic conveying method of bent wear, it is characterised in that using the Geldart-D particle described in claim 9
Device conveys bulk powder or granular material, including following operation：The insufflation gas into tubular cavity, make in tubular cavity
Pressure is more than the pressure in transporting elbow, passes the gas through air permeable plate and enters in transporting elbow, forms the gas that resistance strength is washed away
Bed course, is directly hit and friction pipeline with reducing powder and granule shape material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710370229.8A CN107010421A (en) | 2017-05-23 | 2017-05-23 | A kind of structure for preventing Geldart-D particle bent wear, apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710370229.8A CN107010421A (en) | 2017-05-23 | 2017-05-23 | A kind of structure for preventing Geldart-D particle bent wear, apparatus and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107010421A true CN107010421A (en) | 2017-08-04 |
Family
ID=59450930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710370229.8A Pending CN107010421A (en) | 2017-05-23 | 2017-05-23 | A kind of structure for preventing Geldart-D particle bent wear, apparatus and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107010421A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109230549A (en) * | 2018-10-11 | 2019-01-18 | 中国矿业大学 | A kind of compound pneumatic conveying eddy flow bend pipe |
| CN109625978A (en) * | 2018-12-03 | 2019-04-16 | 江苏科技大学 | A kind of air film protection type bend pipe |
| CN110056330A (en) * | 2019-03-13 | 2019-07-26 | 中国电建集团河南工程有限公司 | Geothermal well down-hole pipe medicine system and descaling method |
| CN113307037A (en) * | 2021-04-17 | 2021-08-27 | 华北水利水电大学 | Dilute phase pneumatic conveying cyclone antifriction elbow |
| CN113404962A (en) * | 2021-07-12 | 2021-09-17 | 华北水利水电大学 | Elastic air cushion antifriction elbow |
| CN114811242A (en) * | 2022-06-30 | 2022-07-29 | 山西申沪物资贸易有限公司 | Corrosion-resistant non-metal lining pipeline joint and manufacturing method thereof |
| CN114988123A (en) * | 2022-07-19 | 2022-09-02 | 江苏寅胜环保能源工程有限公司 | Pneumatic ash conveying system and method with non-wearing dense-phase ash groove |
| CN115140558A (en) * | 2022-08-25 | 2022-10-04 | 湖南核三力技术工程有限公司 | Low-fragmentation air force conveying method and device based on wind flow layer exchange in pipeline |
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| US20090084457A1 (en) * | 2007-09-28 | 2009-04-02 | Pan Pacific Copper Co., Ltd. | Transfer pipe of dried concentrate and breakage detecting method of transfer pipe |
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| CN206156362U (en) * | 2016-11-16 | 2017-05-10 | 江苏光辉包装材料有限公司 | Raw materials conveying system abrasionproof decreases aerifys return bend |
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| US6227768B1 (en) * | 1999-09-30 | 2001-05-08 | Xerox Corporation | Particulate conveyor device and apparatus |
| CA2401058A1 (en) * | 2001-09-04 | 2003-03-04 | Esser-Werke Kg | Arcuate double-layer pipe, and method of assembling an arcuate double-layer pipe |
| US20090084457A1 (en) * | 2007-09-28 | 2009-04-02 | Pan Pacific Copper Co., Ltd. | Transfer pipe of dried concentrate and breakage detecting method of transfer pipe |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109230549A (en) * | 2018-10-11 | 2019-01-18 | 中国矿业大学 | A kind of compound pneumatic conveying eddy flow bend pipe |
| CN109230549B (en) * | 2018-10-11 | 2020-08-11 | 中国矿业大学 | Compound pneumatic conveying rotational flow elbow |
| CN109625978A (en) * | 2018-12-03 | 2019-04-16 | 江苏科技大学 | A kind of air film protection type bend pipe |
| CN110056330A (en) * | 2019-03-13 | 2019-07-26 | 中国电建集团河南工程有限公司 | Geothermal well down-hole pipe medicine system and descaling method |
| CN113307037A (en) * | 2021-04-17 | 2021-08-27 | 华北水利水电大学 | Dilute phase pneumatic conveying cyclone antifriction elbow |
| CN113404962A (en) * | 2021-07-12 | 2021-09-17 | 华北水利水电大学 | Elastic air cushion antifriction elbow |
| CN113404962B (en) * | 2021-07-12 | 2023-02-24 | 华北水利水电大学 | Elastic air cushion antifriction elbow |
| CN114811242A (en) * | 2022-06-30 | 2022-07-29 | 山西申沪物资贸易有限公司 | Corrosion-resistant non-metal lining pipeline joint and manufacturing method thereof |
| CN114988123A (en) * | 2022-07-19 | 2022-09-02 | 江苏寅胜环保能源工程有限公司 | Pneumatic ash conveying system and method with non-wearing dense-phase ash groove |
| CN114988123B (en) * | 2022-07-19 | 2023-06-30 | 江苏寅胜环保能源工程有限公司 | Pneumatic ash conveying system and method with dense-phase ash grooves difficult to abrade |
| CN115140558A (en) * | 2022-08-25 | 2022-10-04 | 湖南核三力技术工程有限公司 | Low-fragmentation air force conveying method and device based on wind flow layer exchange in pipeline |
| CN115140558B (en) * | 2022-08-25 | 2024-05-03 | 湖南核三力技术工程有限公司 | Low-breakage pneumatic conveying method and device based on wind power flow layer exchange in pipeline |
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Application publication date: 20170804 |
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