CN1287905C - Injector of gas and solid transported through gas - Google Patents
Injector of gas and solid transported through gas Download PDFInfo
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- CN1287905C CN1287905C CN 200410014715 CN200410014715A CN1287905C CN 1287905 C CN1287905 C CN 1287905C CN 200410014715 CN200410014715 CN 200410014715 CN 200410014715 A CN200410014715 A CN 200410014715A CN 1287905 C CN1287905 C CN 1287905C
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- gas
- receiving chamber
- tube
- gas nozzle
- solid
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Abstract
The present invention discloses a gas-solid injector transported through gas, which is composed of a gas nozzle, an accepting chamber and a mixing tube, wherein the gas nozzle is arranged on the receiving chamber and is arranged on the same shaft line with the receiving chamber; the mixing tube is arranged at the outlet of the accepting chamber which is provided with a material dropping tube; the cavity of the receiving chamber is formed by connecting a venturi tube-type cavity and a convergent type conic cavity; the material dropping tube is arranged on the venturi tube-type cavity and the gas nozzle is arranged on the convergent segment of the convergent type conic cavity. Due to the diffusion-convergence structure of the cavity of the receiving chamber of the invention, the invention eliminates the idling space and the material detention zone of the existing gas-solid injector and greatly decreases the energy loss of gas-solid flows at the front part of the receiving chamber. The invention is favorable for mixing the gas-solid flows in the receiving chamber and transferring energy so that most of the processes of mixing the gas-solid flows and transferring the energy are finished in the receiving chamber and the shares of the gas-solid flows in the mixing tube for mixing and exchanging the energy are decreased.
Description
Technical field
The present invention relates to a kind ofly transmit the loader of shot shape solid material, relate in particular to a kind of strength and carry gas-solid injector by gas-powered.
Technical background
Gas-solid injector is as the key equipment of feed in the air-transport system, and advantage such as it has movement-less part, and is easy to maintenance receives much attention.Gas-solid injector is with Compressed Gas (air, nitrogen, water vapour etc.) as working media, shot shape solid is a pumped (conveying) medium, utilize the kinetic energy of the high velocity air of Compressed Gas generation, in injector, carry out energy exchange, make solid particle suspend, quicken and be admitted to conveyance conduit with solid particle.Its common structure is made up of solid material blanking port, gas nozzle, receiving chamber, mixing tube and anemostat (also can not be with anemostat).When gases at high pressure when gas nozzle sprays, flow velocity very high (usually gasflow mach number between 0.5～0.6), the air-flow of gas nozzle ejection is very narrow along the axis direction angle of flare, the turbulence of air-flow height.Because the effect of high velocity air, make that gas nozzle exports the pressure of the pressure of near zone less than material blanking port place in the injector receiving chamber.High velocity air mixes with solid material in receiving chamber, carries out energy exchange between the gas-solid two-phase, and solid particle is accelerated, and gas velocity reduces greatly, and is accompanied by sizable energy loss.Because there is defective in conventional gas-solid injector structural design, as shown at right, it is uneven to make Dual-Phrase Distribution of Gas olid mix in injector receiving chamber, even the process of the mixing of Dual-Phrase Distribution of Gas olid in mixing tube and energy exchange is not also finished, energy loss increases, and this is the conveying capacity of limit injection device greatly; Gas nozzle is exported between the end-plate of receiving chamber and has inactive area, usually causes the long-term delay of material, for some easily powder material of tide can produce the caking of powder, even sporadic conveying phenomenon of blocking takes place; Because unreasonable structure also makes some regional area brinelling of injector aggravate, and then easily cause the local worn out phenomenon of injector.
Technology contents
The invention provides a kind of strength conveying gas-solid injector that can reduce energy consumption, improve conveying capacity.
The present invention takes following technical scheme:
The strength that a kind of feed is used is carried gas-solid injector, form by gas nozzle, receiving chamber and mixing tube, gas nozzle is located in the receiving chamber and gas nozzle and receiving chamber are positioned on the same axis, mixing tube is located at the exit of receiving chamber, in receiving chamber, be provided with material blanking tube, the inner chamber of receiving chamber is connected to form by Venturi tube-type spreader inner chamber and convergence type frustum of a cone cavity, and material blanking tube is positioned on the Venturi tube-type spreader inner chamber, and gas nozzle is positioned on the converging portion of Venturi tube-type spreader inner chamber.
Compared with prior art, the present invention has following advantage:
1. because receiving chamber of the present invention inner chamber is the type of a diffusion back convergence earlier structure, the idle space and the material lagging zone of having eliminated existing gas-solid injector have significantly reduced the energy loss that Dual-Phrase Distribution of Gas olid causes in the receiving chamber front portion.This structural design helps Dual-Phrase Distribution of Gas olid and mixes in receiving chamber and the energy transmission, make the mixing of Dual-Phrase Distribution of Gas olid and the transmission overwhelming majority of energy in receiving chamber, finish, reduced the mixing of Dual-Phrase Distribution of Gas olid in mixing tube and the share of energy exchange, thereby reduced losing that mixing tube internal cause space causes for a short time than macro-energy.
2. this structural design of receiving chamber of the present invention inner chamber helps in time material being transferred out in gas-solid injector, avoided carry some easily during powder material of tide because of being stranded in the sporadic conveying phenomenon of blocking that the powder that produces in the injector lumps and causes for a long time.
3. the cone angle of the frustum of a cone cavity of receiving chamber of the present invention convergence type is 10～30 °, and the frustum of a cone cavity of receiving chamber's convergence type and the overall structure of mixing tube, it can be made in the smart casting of consubstantiality, form rounding off and be connected between receiving chamber and mixing tube, this just slows down collision severe degree and the collision probability of solid particle to this zone inwall.These technical measures have been saved energy consumption, have reduced the wearing and tearing of Dual-Phrase Distribution of Gas olid to the injector wall, have improved service life (life-span improves more than 3 times than existing common gas-solid injector).
4. the gas nozzle position is adjustable, the outlet that its maximum axial degree of depth is a gas nozzle must not surpass the center line of blanking circular hole, the minimum axial direction degree of depth is not less than d/2 (d is the blanking Circularhole diameter) behind the center line of blanking circular hole, so that different convey materials all can reach the best state of exerting oneself.
5. the conveying capacity of gas-solid injector of the present invention improves a lot, and improves more than 25% than the conveying capacity of existing ordinary injectors.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
The specific embodiment
The strength that 1 one kinds of feed of embodiment are used is carried gas-solid injector, by gas nozzle 1, receiving chamber 2 and mixing tube 3 are formed, gas nozzle 1 is located in the receiving chamber 2 and gas nozzle 1 is positioned on the same axis with receiving chamber 2, mixing tube 3 is located at the exit of receiving chamber 2, in receiving chamber 2, be provided with material blanking tube 21, the inner chamber of receiving chamber 2 is connected to form by Venturi tube-type spreader inner chamber 23 and convergence type frustum of a cone cavity 24, material blanking tube 21 is positioned on the Venturi tube-type spreader inner chamber 23, gas nozzle 1 is positioned on the converging portion of Venturi tube-type spreader inner chamber 23, above-mentioned gas nozzle 1 is dynamically connected for axially-displaceable with receiving chamber 2 and the outlet of gas nozzle 1 is positioned at the aditus laryngis of Venturi tube-type spreader inner chamber 23 to material blanking tube 21 center range, in the present embodiment, in receiving chamber 2, be provided with end-plate 22, between end-plate 22 and the gas nozzle 1 for being used to realize gas nozzle 1 and receiving chamber's 2 axially movable being threaded, the convergence type frustum of a cone cavity part of receiving chamber 2 is coaxial overall structure with mixing tube 3, and the cone angle of the convergence type frustum of a cone cavity (24) of receiving chamber 2 is 10～30 °.
The strength that 2 one kinds of feed of embodiment are used is carried gas-solid injector, by gas nozzle 1, receiving chamber 2 and mixing tube 3 are formed, gas nozzle 1 is located in the receiving chamber 2 and gas nozzle 1 is positioned on the same axis with receiving chamber 2, mixing tube 3 is located at the exit of receiving chamber 2, anemostat 4 and 3 coaxial connections of mixing tube, in receiving chamber 2, be provided with material blanking tube 21, the inner chamber of receiving chamber 2 is connected to form by Venturi tube-type spreader inner chamber 23 and convergence type frustum of a cone cavity 24, material blanking tube 21 is positioned on the Venturi tube-type spreader inner chamber 23, gas nozzle 1 is positioned on the converging portion of Venturi tube-type spreader inner chamber 23, the plane, aditus laryngis place and the material blanking tube 21 of Venturi tube-type spreader inner chamber 23 are tangent, and the Venturi tube-type spreader inner chamber is rendered as to restrain earlier and afterwards spreads shape (referring to Fig. 1).
Claims (6)
1, the strength that a kind of feed is used is carried gas-solid injector, by gas nozzle (1), receiving chamber (2) and mixing tube (3) are formed, gas nozzle (1) is located in the receiving chamber (2) and gas nozzle (1) is positioned on the same axis with receiving chamber (2), mixing tube (3) is located at the exit of receiving chamber (2), in receiving chamber (2), be provided with material blanking tube (21), the inner chamber that it is characterized in that receiving chamber (2) is connected to form by Venturi tube-type spreader inner chamber (23) and convergence type frustum of a cone cavity (24), material blanking tube (21) is positioned on the Venturi tube-type spreader inner chamber (23), and gas nozzle (1) is positioned on the converging portion of Venturi tube-type spreader inner chamber (23).
2, strength according to claim 1 is carried gas-solid injector, it is characterized in that gas nozzle (1) and receiving chamber (2) are dynamically connected for axially-displaceable and the outlet of gas nozzle (1) is positioned at the aditus laryngis of Venturi tube-type spreader inner chamber (23) to material blanking tube (21) center range.
3, strength according to claim 1 and 2 is carried gas-solid injector, it is characterized in that in receiving chamber (2), being provided with end-plate (22), between end-plate (22) and the gas nozzle (1) for being used to realize gas nozzle (1) and axially movable being threaded of receiving chamber (2).
4, strength according to claim 1 and 2 is carried gas-solid injector, it is characterized in that the plane, aditus laryngis place of Venturi tube-type spreader inner chamber (23) and material blanking tube (21) are tangent.
5, strength according to claim 1 is carried gas-solid injector, it is characterized in that the convergence type frustum of a cone cavity part of receiving chamber (2) and mixing tube (3) are coaxial overall structure.
6, strength according to claim 1 is carried gas-solid injector, it is characterized in that the cone angle of the convergence type frustum of a cone cavity (24) of receiving chamber (2) is 10～30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014715 CN1287905C (en) | 2004-04-22 | 2004-04-22 | Injector of gas and solid transported through gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014715 CN1287905C (en) | 2004-04-22 | 2004-04-22 | Injector of gas and solid transported through gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1562499A CN1562499A (en) | 2005-01-12 |
| CN1287905C true CN1287905C (en) | 2006-12-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410014715 Expired - Fee Related CN1287905C (en) | 2004-04-22 | 2004-04-22 | Injector of gas and solid transported through gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1287905C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817622A (en) * | 2012-10-08 | 2012-12-12 | 江苏中机矿山设备有限公司 | Negative pressure type concrete wet-spray machine set |
| CN101941594B (en) * | 2009-07-09 | 2013-04-10 | 中国石油化工股份有限公司 | Conveying equipment for solid particles |
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| CN101992159B (en) * | 2009-08-18 | 2012-10-24 | 和纶企业股份有限公司 | Two-fluid nozzle |
| CN102556669B (en) * | 2012-01-10 | 2015-06-10 | 厦门美甘齐动物料输送工程股份有限公司 | Gas-solid mixing accelerating chamber |
| CN104058255A (en) * | 2013-03-22 | 2014-09-24 | 合肥固泰自动化有限公司 | Annular air-locking flow-aiding device |
| CN104014441A (en) * | 2014-06-13 | 2014-09-03 | 苏州市金翔钛设备有限公司 | Thread screwing-in type medium ejector |
| CN104226515B (en) * | 2014-06-13 | 2016-05-25 | 苏州市金翔钛设备有限公司 | Draw a mouthful adjustable type medium injection device |
| CN104401741A (en) * | 2014-11-11 | 2015-03-11 | 宁夏嘉翔自控技术有限公司 | Spray nozzle of material seal pump of slag skimming loading system of metallurgy industry |
| CN104772241B (en) * | 2015-04-24 | 2017-01-18 | 浙江大学宁波理工学院 | Ejector with convergent-divergent nozzle type receiving chamber |
| CN105197600A (en) * | 2015-10-20 | 2015-12-30 | 四川大学 | Venturi device with adjustable material conveying effect |
| CN105214441A (en) * | 2015-10-30 | 2016-01-06 | 上海核工程研究设计院 | A kind of Geldart-D particle injector of Wind Volume III type iodine adsorber |
| CN105737188B (en) * | 2016-04-22 | 2018-09-14 | 中冶华天南京工程技术有限公司 | Fluidisation state powder manifold is rationed and stablizes injection system |
| CN105775751A (en) * | 2016-05-11 | 2016-07-20 | 东南大学 | Adjustable gas-solid injector |
| CN110313292A (en) * | 2018-03-30 | 2019-10-11 | 京蓝沐禾节水装备有限公司 | Venturi tube fertilizer apparatus |
| CN111785405A (en) * | 2020-06-16 | 2020-10-16 | 中国辐射防护研究院 | Remote pneumatic transport filling type shielding device based on Venturi tube |
| CN112023740B (en) * | 2020-07-10 | 2022-03-01 | 湘潭大学 | Gas-solid mixer for particle crushing |
| CN112058526B (en) * | 2020-09-09 | 2021-06-22 | 中国空气动力研究与发展中心高速空气动力研究所 | Distributed circumferential seam ejector device |
| CN112138557A (en) * | 2020-10-21 | 2020-12-29 | 大庆德美特尔能源科技有限公司 | Solid-liquid mixing ejector |
| CN112973331B (en) * | 2021-02-09 | 2022-10-21 | 北京航化节能环保技术有限公司 | Vertical venturi scrubber |
-
2004
- 2004-04-22 CN CN 200410014715 patent/CN1287905C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941594B (en) * | 2009-07-09 | 2013-04-10 | 中国石油化工股份有限公司 | Conveying equipment for solid particles |
| CN102817622A (en) * | 2012-10-08 | 2012-12-12 | 江苏中机矿山设备有限公司 | Negative pressure type concrete wet-spray machine set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1562499A (en) | 2005-01-12 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061206 Termination date: 20110422 |