CN109625978A - A kind of air film protection type bend pipe - Google Patents
A kind of air film protection type bend pipe Download PDFInfo
- Publication number
- CN109625978A CN109625978A CN201811465492.6A CN201811465492A CN109625978A CN 109625978 A CN109625978 A CN 109625978A CN 201811465492 A CN201811465492 A CN 201811465492A CN 109625978 A CN109625978 A CN 109625978A
- Authority
- CN
- China
- Prior art keywords
- bend pipe
- air film
- porous ceramics
- protection type
- tube shell
- Prior art date
- 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.)
- Pending
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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
- 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
Abstract
The present invention provides a kind of air film protection type bend pipe; including bending tube shell; the inner wall of the bending tube shell is equipped with porous ceramics liner; gap gas chamber is formed between the porous ceramics liner and the bending tube shell; gas tube is additionally provided on the outside of the bending tube shell, the gas tube is connected to the gap gas chamber.Air film protection type bend pipe provided by the invention, the air film protective layer of formation are to be distributed in inner wall of the pipe face, make bolt stream uniform force, and expect that bolt is based on contactless movement with tube wall, can reduce tube wall abrasion, material is crushed and adherency, extension bend pipe service life.The bend pipe radius of curvature that the conveying of bolt stream can also be reduced, facilitates installation.
Description
Technical field
The present invention relates to a kind of air film protection type bend pipe, in particular to a kind of air film protection type suitable for the conveying of bolt stream is curved
Pipe, belongs to Pneumatic Conveying Technology field.
Background technique
Bend pipe can neatly change the conveying direction of material, mention as a kind of important plumbing arrangements of air-transport system
The high flexibility of transportation system.However, under the influence of centrifugal force, the direction of pipe bent position material stream sharply changes, material and pipe
The sharp impacts of wall cause the problems such as Particle Breakage, bent wear, seriously affect the use of quality of material, production efficiency and bend pipe
Service life.
Air film protection type bend pipe, for material in pipe bent position to the impact wear and adhesion of tube wall, in pipe bent position
It is filled with the mode of high-speed flow, reduces contact of the particle with wall surface, achievees the purpose that protect particle and bend pipe anti-attrition.Currently, its
Structure mainly has: (1) occurring first in material and bend pipe or the impact zone of serious wear opens up one along bend pipe wall direction
Ventilation opening reduces material stream under the percussion of air-flow and the collision of tube wall；(2) tangential micro- in the processing of bend pipe second half section
Hole is passed through high pressure draught tangentially and then prevents dien vertex miscarriage life, reduces the abrasion of material and tube wall.However, above-mentioned curved
Pipe surface processes stomata not only complex process, but also reduces the performance of bend pipe.And since the uniformly distributed performance that it is filled with air-flow is poor,
Dense phase cork flow is conveyed, pipe bent position material bolt can be made defeated and dispersed, to influence the stability and efficiency of bolt stream conveying.
Summary of the invention
It is an object of the invention in view of the above shortcomings of the prior art, provide a kind of air film protection type bend pipe, can solve
The problem of the uniformly distributed property difference of certainly existing bend pipe air-flow is conveyed especially suitable for bolt stream.
In order to achieve the above objectives, present invention provide the technical scheme that
The inner wall of a kind of air film protection type bend pipe, including bending tube shell, the bending tube shell is equipped with porous ceramics liner, institute
It states and forms gap gas chamber between porous ceramics liner and the bending tube shell, be additionally provided with gas tube on the outside of the bending tube shell,
The gas tube is connected to the gap gas chamber.
Further, general that the porous ceramics liner is bonded in by the bending tube shell inner wall by binder.
Further, the porous ceramics liner is made of alumina porous ceramic, meets its high intensity, high tenacity, resistance to
The requirement of mill and inner wall smooth.
Further, the aperture of the porous ceramics liner is between 10 μm~600 μm, and the particle for being less than pumped (conveying) medium is straight
Better current balance function is played in diameter, suitable aperture, so that the air film of the porous ceramics liner inner wall is uniform.
Further, the distance between the bending tube shell inner wall and the porous ceramics liner outer wall are the porous ceramics
0.08~0.12 times of liner internal diameter.Suitable gap is easily formed uniform and stable air film.
Further, it is provided between the porous ceramics liner and the bending tube shell along bending tube shell length direction several
The gap gas chamber is separated into several gas chamber units by reinforcing rib, the reinforcing rib, each gas chamber unit with it is described
Gas tube connection.Reinforcing rib improves bend pipe intensity.
Further, adjustable throttling (5) are additionally provided between the gas tube and each gas chamber unit.Pass through adjusting
The openings of sizes of the throttle valve changes the intake velocity of each gas chamber unit, forms suitable air film.
Compared with prior art, technical solution of the present invention has the advantage that
Air film protection type bend pipe provided by the invention, the air film protective layer of formation are to be distributed in inner wall of the pipe face, make bolt stream
Uniform force, and expect that bolt, based on contactless movement, can reduce tube wall abrasion with tube wall, material is crushed and adherency, extension bend pipe makes
Use the service life.The bend pipe radius of curvature that the conveying of bolt stream can also be reduced, facilitates installation.It is readily delivered the powder feeding body and fine powder easily bonded
Body material and wet, pasty material, semifluid and viscous material.The gap gas surrounded due to porous ceramics liner and bending tube shell
Room needs to bear high pressure, then uses high pressure resistant and wear-resisting alumina porous ceramic, improve the stability of gas chamber.Meanwhile reinforcing
The additional of muscle also improves the intensity of porous ceramics liner.Using adjustable throttling, the charge of easily controllable high pressure draught is real
The adaptivity of existing bend pipe protection.
Detailed description of the invention
Fig. 1 is the organigram of the embodiment of the present invention；
Fig. 2 is the sectional view in Fig. 1 at A-A；
In figure: 1 be bending tube shell, 2 be gap gas chamber, 3 be porous ceramics liner, 4 be reinforcing rib, 5 be adjustable throttling,
6 be gas tube.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is described in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention,
It is not intended to limit the present invention.
Those skilled in the art of the present technique are appreciated that unless otherwise defined all terms used herein include technology art
Language and direction term have meaning identical with the general understanding of those of ordinary skill in fields of the present invention.
It as depicted in figs. 1 and 2, is a kind of air film protection type bend pipe of the invention, including bending tube shell 1, the bend pipe shell
The inner wall of body 1 is equipped with porous ceramics liner 3, and gap gas chamber 2 is formed between the porous ceramics liner 3 and the bending tube shell 1,
The outside of the bending tube shell 1 is additionally provided with the gas tube 6 for being connected to the gap gas chamber 2.
Wherein, the aperture of the porous ceramics liner 3 is between 10 μm~600 μm, and for example aperture can be 10 μm, 100 μ
M or 600 μm.
The porous ceramics liner 3 is made of alumina porous ceramic.
The distance between 1 inner wall of bending tube shell and 3 outer wall of porous ceramics liner, i.e., the described gap are described more
0.08~0.12 times of ceramic-lined 3 internal diameter in hole, if multiple can be 0.08 times, 0.10 times or 0.12 times.
Bending tube shell length direction is provided with several reinforcements between the porous ceramics liner 3 and the bending tube shell 1
The gap gas chamber 2 is separated into several gas chamber units, the gas tube 6 and each gas chamber by muscle 4, the reinforcing rib 4
Adjustable throttling (5) are additionally provided between unit.By adjusting the openings of sizes of the throttle valve, change each gas chamber list
The intake velocity of member, forms suitable air film.
Application method and principle
By in air film protection type bend pipe access pipeline of the invention when use, the gas tube 6 accesses compressed air, and
The aperture of the porous ceramics liner 3 is less than the particle diameter of conveying powder.
Compressed gas enters the gap gas chamber 2 by the gas tube 6, and the compressed gas of elevated pressures is described porous
Under ceramic-lined 3 current balance function, its inner wall is slowly penetrated into, one layer of equally distributed air film protective layer is formed, to realize material bolt
In " contactless " conveying of pipe bent position.It protects bend pipe and improves conveying quality and efficiency.
By adjusting the openings of sizes of the adjustable throttling 5, change the intake velocity of the gas chamber unit, it is suitable to be formed
Air film.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (6)
1. a kind of air film protection type bend pipe, it is characterised in that: including bending tube shell (1), the inner wall of the bending tube shell (1) is equipped with
Porous ceramics liner (3) forms gap gas chamber (2) between the porous ceramics liner (3) and the bending tube shell (1), described
It is additionally provided on the outside of bending tube shell (1) gas tube (6), the gas tube (6) is connected to the gap gas chamber (2).
2. a kind of air film protection type bend pipe according to claim 1, it is characterised in that: the porous ceramics liner (3)
Aperture is between 10 μm~600 μm, and the aperture of the porous ceramics liner 3 is less than the particle diameter of conveying powder,.
3. a kind of air film protection type bend pipe according to claim 1, it is characterised in that: the porous ceramics liner (3) is adopted
It is made of alumina porous ceramic.
4. a kind of air film protection type bend pipe according to claim 1, it is characterised in that: bending tube shell (1) inner wall with
The distance between described porous ceramics liner (3) outer wall is 0.08~0.12 times of porous ceramics liner (3) internal diameter.
5. a kind of air film protection type bend pipe according to claim 1, it is characterised in that: the porous ceramics liner (3) with
It is provided with several reinforcing ribs (4) between the bending tube shell (1) along bending tube shell (1) length direction, the reinforcing rib (4) is by institute
It states gap gas chamber (2) and is separated into several gas chamber units, each gas chamber unit is connected to the gas tube (6).
6. a kind of air film protection type bend pipe according to claim 5, it is characterised in that: the gas tube (6) and each institute
It states and is additionally provided with adjustable throttling (5) between gas chamber unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811465492.6A CN109625978A (en) | 2018-12-03 | 2018-12-03 | A kind of air film protection type bend pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811465492.6A CN109625978A (en) | 2018-12-03 | 2018-12-03 | A kind of air film protection type bend pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109625978A true CN109625978A (en) | 2019-04-16 |
Family
ID=66070530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811465492.6A Pending CN109625978A (en) | 2018-12-03 | 2018-12-03 | A kind of air film protection type bend pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109625978A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6227768B1 (en) * | 1999-09-30 | 2001-05-08 | Xerox Corporation | Particulate conveyor device and apparatus |
| US20040037658A1 (en) * | 2002-08-20 | 2004-02-26 | Pfeiffer John W. | System for pneumatically conveying bulk particulate materials |
| CN205892159U (en) * | 2016-08-17 | 2017-01-18 | 大峘集团有限公司 | Pipeline tonifying qi ware |
| CN107010421A (en) * | 2017-05-23 | 2017-08-04 | 重庆大学 | A kind of structure for preventing Geldart-D particle bent wear, apparatus and method |
-
2018
- 2018-12-03 CN CN201811465492.6A patent/CN109625978A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6227768B1 (en) * | 1999-09-30 | 2001-05-08 | Xerox Corporation | Particulate conveyor device and apparatus |
| US20040037658A1 (en) * | 2002-08-20 | 2004-02-26 | Pfeiffer John W. | System for pneumatically conveying bulk particulate materials |
| CN205892159U (en) * | 2016-08-17 | 2017-01-18 | 大峘集团有限公司 | Pipeline tonifying qi ware |
| CN107010421A (en) * | 2017-05-23 | 2017-08-04 | 重庆大学 | A kind of structure for preventing Geldart-D particle bent wear, apparatus and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20190416 |