CN105966921A - Material issuing device for powdered solid and gas conveying - Google Patents

Material issuing device for powdered solid and gas conveying Download PDF

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Publication number
CN105966921A
CN105966921A CN201610573381.1A CN201610573381A CN105966921A CN 105966921 A CN105966921 A CN 105966921A CN 201610573381 A CN201610573381 A CN 201610573381A CN 105966921 A CN105966921 A CN 105966921A
Authority
CN
China
Prior art keywords
solid
gas
pipe
feed opening
high pressure
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
Application number
CN201610573381.1A
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Chinese (zh)
Inventor
陈攻
黄松涛
刘峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU SINOMA CONSTRUCTION CO Ltd
Original Assignee
SUZHOU SINOMA CONSTRUCTION CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SUZHOU SINOMA CONSTRUCTION CO Ltd filed Critical SUZHOU SINOMA CONSTRUCTION CO Ltd
Priority to CN201610573381.1A priority Critical patent/CN105966921A/en
Publication of CN105966921A publication Critical patent/CN105966921A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34Details
    • B65G53/40Feeding or discharging devices
    • B65G53/50Pneumatic devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34Details
    • B65G53/52Adaptations of pipes or tubes
    • B65G53/526Adaptations of pipes or tubes with means for special treatment to facilitate transport
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04Bulk
    • B65G2201/042Granular material

Abstract

A material issuing device for powdered solid and gas conveying comprises a high pressure gas injection pipe, a solid feed opening, a gas-solid mixing chamber and a gas-solid two-phase mixing jetting pipe which are connected into a whole. The high pressure gas injection pipe, the gas-solid mixing chamber and the gas-solid two-phase mixing jetting pipe are located on a same central axis, the gas-solid mixing chamber is formed between the high pressure gas injection pipe and the gas-solid two-phase mixing jetting pipe, the solid feed opening is located above the gas-solid mixing chamber, and the gas-solid mixing chamber is communicated with the high pressure gas injection pipe, the solid feed opening and the gas-solid two-phase mixing jetting pipe. The high pressure gas injection pipe is a gradually necked type injection pipe, and the gas-solid two-phase mixing jetting pipe is a gradually expanding type jetting pipe. The material issuing device for powdered solid and gas conveying effectively improves the conveying capacity.

Description

For the issuance of materials device that granular solid is air conveying
Technical field
The present invention relates to a kind of issuance of materials device, especially a kind of for granular solid strength The issuance of materials device of conveying.
Background technology
Issuance of materials device is the key equipment that in air-transport system, feed uses, owing to it has Advantage is widely used to have structure relatively easy, easy to maintenance etc..Air conveying transmitter It it is the key utilizing compressed gas as transferring working medium to carry granular solid particle Equipment.It is to utilize compressed-air actuated static energy, by having a special construction Tract, static energy is changed into dynamic pressure energy, the gas dynamic pressure energy that will convert in issuance of materials device Pass to solid particle, make solid particle suspend, accelerate, be brought into conveying mother simultaneously Pipe.Conventional issuance of materials device be all by solid material feeding mouth, gas nozzle, receiving chamber, Mixing tube and anemostat (also can be without) composition.When the higher gas of static pressure is by spraying Mouth sprays through narrow and small tract, and gas flow rate is very big, and (Mach number is left up to 0.5 Right), after then gas enters the tract of less expansion angle, gas turbulence effect is high Degree development, produces negative pressure in pipeline throat.Solid particle is sucked under suction function Enter blanking chamber, and then realize gas-particle two-phase mixing, energy exchange occurs therebetween, Solid is accelerated, and gas is decelerated, and the two sliding velocity is greatly reduced, but can simultaneously Cause a large amount of energy loss.Owing to conventional blanking device exists the defect of design aspect, make Become gas-particle two-phase mixing uneven, greatly reduce the transmitting capacity of issuance of materials device.Simultaneously Owing to mixing chamber design exists drawback, there is a large amount of flow dead in often making it, make Becoming solid material prolonged stay, the solid stronger for water absorption easily lumps, and causes The internal blocking of issuance of materials device.Some issuance of materials device can make flowing not due to design unreasonable structure Uniformly, the phenomenons such as some regional area abrasion increase are caused.
Summary of the invention
In order to overcome drawbacks described above, the present invention provides a kind of for granular solid strength The issuance of materials device of conveying, the described issuance of materials device air conveying for granular solid promotes to be sent out Send ability, stable, energy consumption is relatively low.
The present invention is to solve that its technical problem be the technical scheme is that a kind of use In the issuance of materials device that granular solid is air conveying, including the gases at high pressure connected as one Spray into pipe, solid feed opening, gas-solid mixing room and gas-particle two-phase mixing bleed pipe, institute State gases at high pressure spray into pipe, gas-solid mixing room and gas-particle two-phase bleed pipe be in same in On mandrel line, gas-solid mixing room is formed at gases at high pressure and sprays into pipe and gas-particle two-phase ejection Between pipe, solid feed opening is positioned at the top of gas-solid mixing room, and gas-solid mixing room is respectively Spray into pipe, solid feed opening and gas-particle two-phase bleed pipe to communicate with gases at high pressure, described It is tapering type that gases at high pressure spray into pipe, and described gas-particle two-phase mixing bleed pipe is flaring Formula.
As a further improvement on the present invention, the central axis of described solid feed opening with Gases at high pressure spray into the central shaft residing for pipe, gas-solid mixing room, gas-particle two-phase bleed pipe Line is in a certain angle, and this angle is more than the internal friction angle of solid powder.
As a further improvement on the present invention, described gases at high pressure spray into pipe include conveying Trachea connects pipeline, Flange joint dish and traction therapy that reducing pipe, described conveying trachea Connecting pipeline to weld between Flange joint dish, described conveying trachea connects pipeline and draws Between Fa Er reducing pipe coaxial and be threaded.
As a further improvement on the present invention, the taper angle of described traction therapy that reducing pipe is 8-15°。
As a further improvement on the present invention, the outlet of described traction therapy that reducing pipe is positioned at The center of gas-solid mixing room.
As a further improvement on the present invention, described gas-solid mixing room and solid feed opening Between be tangential round and smooth be connected.
As a further improvement on the present invention, described solid feed opening includes being connected as one The feed opening flange of body and feed opening inwall, described feed opening Flange joint is in blanking bin With between feed opening inwall, described feed opening inwall is tangentially connected with gas-solid mixing room.
As a further improvement on the present invention, described gas-solid mixing room is sprayed with gas-particle two-phase Go out between pipe for tangential round and smooth connected.
As a further improvement on the present invention, described gas-particle two-phase bleed pipe includes connecting Straight portion, flaring part and the end flange being integrated, described straight portion and gas Gu mixing chamber is tangentially connected, described end flange pipe female with conveying is connected.
As a further improvement on the present invention, the flaring angle of described flaring part is 8-15°。
The invention has the beneficial effects as follows: the present invention is air conveying for granular solid Issuance of materials device, inner chamber, for first to reduce rear diffused structure, effectively eliminates current existing confession The suction of glassware is not enough, there is Dead space and the drawback in material lagging district, effectively carries Rise conveying capacity.Meanwhile, the negative pressure that gas-solid mixing room produces due to la farr pipe is more Easily make solid powder flow, so reduce Dual-Phrase Distribution of Gas olid mixing in mixing chamber and The share of energy exchange.
Accompanying drawing explanation
Fig. 1 is the present invention for the combination of the air conveying issuance of materials device of granular solid Figure.
Comparison the figures above, is supplemented as follows explanation:
1---gases at high pressure spray into pipe 2---solid feed opening
3---gas-solid mixing room 4---gas-particle two-phase mixing bleed pipe
11---conveying trachea connects pipeline 12---Flange joint dish
13---traction therapy that reducing pipe 21---feed opening flange
22---feed opening inwall 41---straight portion
42---flaring part 43---end flange
Detailed description of the invention
A kind of issuance of materials device air conveying for granular solid, including connecting as one Gases at high pressure spray into pipe 1, solid feed opening 2, gas-solid mixing room 3 and gas-solid two Mixing bleed pipe 4 mutually.Described gases at high pressure spray into pipe 1, gas-solid mixing room 3 and gas Gu biphase bleed pipe 4 is on same central axis, gas-solid mixing room 3 is formed at height Body of calming the anger sprays between pipe 1 and gas-particle two-phase bleed pipe 4, and solid feed opening 2 is positioned at The top of gas-solid mixing room 3, gas-solid mixing room 3 spray into gases at high pressure respectively pipe 1, Solid feed opening 2 and gas-particle two-phase bleed pipe 4 communicate.Described gases at high pressure spray into pipe 1 is tapering type, and described gas-particle two-phase mixing bleed pipe 4 is gradual-enlargement type.
Laval nozzle is to be made up of two conical pipes, before the first stage for shrink Pipe, after second stage for expansion pipe.In the first stage, gasmovement is followed " flows When body moves in pipe, little place, cross section flow velocity is big, and cross section general goal flow velocity is little " principle, Therefore air-flow constantly accelerates.When arriving narrow larynx, flow velocity has been over velocity of sound.And Transonic fluid is the most no longer followed when motion, and " greatly, cross section is big for little place, cross section flow velocity Place's flow velocity is little " principle, but on the contrary, cross section is the biggest, flow velocity is the fastest, therefore, In second stage, the speed of combustion gas stream is further accelerated, for 2-3 kilometer per second, Be equivalent to 7-8 times of velocity of sound, this creates the terminal huge thrust.Laval nozzle Actually serve the effect of " flow velocity enhancer ".
The central axis of described solid feed opening 2 and gases at high pressure spray into pipe 1, gas-solid Central axis residing for mixing chamber 3, gas-particle two-phase bleed pipe 4 is in a certain angle, should Angle is more than the internal friction angle of solid powder.That is, tangent binding pattern is used, can Flow into rapidly in issuance of materials device with beneficially solid particle, transferred out rapidly simultaneously. Avoiding problems in granule of some easy caking is present in issuance of materials device for a long time cause stifled Plug phenomenon.
Described gases at high pressure spray into pipe 1 and include that carrying trachea connects pipeline 11, flange Connection dish 12 and traction therapy that reducing pipe 13, described conveying trachea connects pipeline 11 Welding with between Flange joint dish 12, described conveying trachea connects pipeline 11 and traction therapy Between your reducing pipe 13 coaxial and be threaded.Flange joint dish 12 for High-pressure delivery gas tube (not shown) is connected.Described traction therapy that reducing pipe 13 Taper angle is 8-15 °.The outlet of described traction therapy that reducing pipe 13 is positioned at gas-solid mixing The center of room 3.
Round and smooth it is connected for tangential between described gas-solid mixing room 3 and solid feed opening 2.
Feed opening flange 21 that described solid feed opening 2 includes connecting as one and under Material mouth inwall 22, described feed opening flange 21 be connected to blanking bin (not shown) and Between feed opening inwall 22, described feed opening inwall 22 is tangential with gas-solid mixing room 3 Connect.
It it is tangential round and smooth phase between described gas-solid mixing room 3 and gas-particle two-phase bleed pipe 4 Even.
Straight portion 41 that described gas-particle two-phase bleed pipe 4 includes connecting as one, Flaring part 42 and end flange 43, described straight portion 41 and gas-solid mixing room 3 Tangentially connected, described end flange 43 is connected with conveying mother's pipe (not shown).Institute The flaring angle stating flaring part 42 is 8-15 °.
Issuance of materials device inner chamber of the present invention is for first to reduce rear diffused structure, therefore, and the present invention Issuance of materials device is la farr pipe formula issuance of materials device, thus effectively eliminates current existing loader Suction not enough, there is Dead space and the drawback in material lagging district.Meanwhile, gas-solid Mixing chamber 3 is more easy to make solid powder flow due to the negative pressure that la farr pipe produces, and then Reduce Dual-Phrase Distribution of Gas olid mixing in mixing chamber and the share of energy exchange.The present invention For granular solid air conveying la farr pipe formula issuance of materials device, conveying capacity has bigger Improve, improve more than 20% than the most common injecting type blanking device conveying capacity.Whole Issuance of materials device is easy to cast molding, and the most tapering type gases at high pressure spray into pipe 1, gas-solid mixes Close and between room 3, solid feed opening 2, gradual-enlargement type gas-particle two-phase bleed pipe 4, use circle Slipping over and cross connection, these slow down the solid particle violent journey of collision to this intra-zone Degree and the degree of wear, not only save energy consumption but also improve the service life of issuance of materials device.

Claims (10)

1. for the issuance of materials device that granular solid is air conveying, including being connected as one It is mixed that the gases at high pressure of body spray into pipe, solid feed opening, gas-solid mixing room and gas-particle two-phase Closing bleed pipe, described gases at high pressure spray into pipe, gas-solid mixing room sprays with gas-particle two-phase Pipe is on same central axis, gas-solid mixing room be formed at gases at high pressure spray into pipe and Between gas-particle two-phase bleed pipe, solid feed opening is positioned at the top of gas-solid mixing room, gas Gu mixing chamber sprays into pipe, solid feed opening and gas-particle two-phase ejection respectively with gases at high pressure Pipe communicates, and it is characterized in that: it is tapering type that described gases at high pressure spray into pipe, described gas-solid Two-phase mixtures bleed pipe is gradual-enlargement type.
The most according to claim 1 for air conveying the sending out of granular solid Glassware, is characterized in that: the central axis of described solid feed opening sprays into gases at high pressure Central axis residing for pipe, gas-solid mixing room, gas-particle two-phase bleed pipe is in a certain angle, This angle is more than the internal friction angle of solid powder.
The most according to claim 1 for air conveying the sending out of granular solid Glassware, is characterized in that: described gases at high pressure spray into pipe include carry trachea connect pipeline, Flange joint dish and traction therapy that reducing pipe, described conveying trachea connects pipeline and flange Welding between connection dish, described conveying trachea connects between pipeline and your reducing pipe of traction therapy Coaxial and be threaded.
The most according to claim 3 for air conveying the sending out of granular solid Glassware, is characterized in that: the taper angle of described traction therapy that reducing pipe is 8-15 °.
The most according to claim 3 for air conveying the sending out of granular solid Glassware, is characterized in that: the outlet of described traction therapy that reducing pipe is positioned at gas-solid mixing room Center.
The most according to claim 1 for air conveying the sending out of granular solid Glassware, is characterized in that: for tangent circle between described gas-solid mixing room and solid feed opening Sliding connected.
The most according to claim 6 for air conveying the sending out of granular solid Glassware, is characterized in that: described solid feed opening includes the feed opening method connected as one Orchid and feed opening inwall, described feed opening Flange joint is in blanking bin and feed opening inwall Between, described feed opening inwall is tangentially connected with gas-solid mixing room.
The most according to claim 1 for air conveying the sending out of granular solid Glassware, is characterized in that: for cutting between described gas-solid mixing room and gas-particle two-phase bleed pipe It is connected to round and smooth.
The most according to claim 8 for air conveying the sending out of granular solid Glassware, is characterized in that: it is straight that described gas-particle two-phase bleed pipe includes connecting as one Partly, flaring part and end flange, described straight portion is tangential with gas-solid mixing room Connecting, described end flange pipe female with conveying is connected.
The most according to claim 9 for air conveying the sending out of granular solid Glassware, is characterized in that: the flaring angle of described flaring part is 8-15 °.
CN201610573381.1A 2016-07-20 2016-07-20 Material issuing device for powdered solid and gas conveying Pending CN105966921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610573381.1A CN105966921A (en) 2016-07-20 2016-07-20 Material issuing device for powdered solid and gas conveying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610573381.1A CN105966921A (en) 2016-07-20 2016-07-20 Material issuing device for powdered solid and gas conveying

Publications (1)

Publication Number Publication Date
CN105966921A true CN105966921A (en) 2016-09-28

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Application Number Title Priority Date Filing Date
CN201610573381.1A Pending CN105966921A (en) 2016-07-20 2016-07-20 Material issuing device for powdered solid and gas conveying

Country Status (1)

Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107352274A (en) * 2017-08-25 2017-11-17 天津商业大学 A kind of regulatable new induction Pneumatic conveyer of particle concentration
CN107416529A (en) * 2017-09-08 2017-12-01 中国华能集团清洁能源技术研究院有限公司 A kind of Contiuum type air conveyor
CN114148759A (en) * 2021-12-30 2022-03-08 南京翔瑞智能装备技术有限公司 Gas-powder conveying device without returning charge

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB903102A (en) * 1959-06-23 1962-08-09 Acme Ventilating Ltd Improvements relating to pneumatic conveyors for loose materials
JPH08113369A (en) * 1994-10-17 1996-05-07 Shohei Senda Granule supplying device
CN2353940Y (en) * 1998-09-15 1999-12-15 郑德明 Low-pressure pneumatic continuous delivery pump
CN201367259Y (en) * 2009-02-25 2009-12-23 大连森雅能源环保设备有限公司 Jet type material feeder,
CN201785043U (en) * 2010-06-11 2011-04-06 西安交通大学 Grain conveying device
CN202670742U (en) * 2012-06-29 2013-01-16 爱思开实业(汕头)聚苯树脂有限公司 Device for delivering solid powdery material
CN104132006A (en) * 2014-08-07 2014-11-05 苏州淮通电气有限公司 Ejector for jet pump
CN205855391U (en) * 2016-07-20 2017-01-04 苏州中材建设有限公司 For the issuance of materials device that granular solid is air conveying

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB903102A (en) * 1959-06-23 1962-08-09 Acme Ventilating Ltd Improvements relating to pneumatic conveyors for loose materials
JPH08113369A (en) * 1994-10-17 1996-05-07 Shohei Senda Granule supplying device
CN2353940Y (en) * 1998-09-15 1999-12-15 郑德明 Low-pressure pneumatic continuous delivery pump
CN201367259Y (en) * 2009-02-25 2009-12-23 大连森雅能源环保设备有限公司 Jet type material feeder,
CN201785043U (en) * 2010-06-11 2011-04-06 西安交通大学 Grain conveying device
CN202670742U (en) * 2012-06-29 2013-01-16 爱思开实业(汕头)聚苯树脂有限公司 Device for delivering solid powdery material
CN104132006A (en) * 2014-08-07 2014-11-05 苏州淮通电气有限公司 Ejector for jet pump
CN205855391U (en) * 2016-07-20 2017-01-04 苏州中材建设有限公司 For the issuance of materials device that granular solid is air conveying

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107352274A (en) * 2017-08-25 2017-11-17 天津商业大学 A kind of regulatable new induction Pneumatic conveyer of particle concentration
CN107416529A (en) * 2017-09-08 2017-12-01 中国华能集团清洁能源技术研究院有限公司 A kind of Contiuum type air conveyor
CN114148759A (en) * 2021-12-30 2022-03-08 南京翔瑞智能装备技术有限公司 Gas-powder conveying device without returning charge

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Application publication date: 20160928