CN1053592A - The feed appliance that is used for particulate material - Google Patents
The feed appliance that is used for particulate material Download PDFInfo
- Publication number
- CN1053592A CN1053592A CN90100474A CN90100474A CN1053592A CN 1053592 A CN1053592 A CN 1053592A CN 90100474 A CN90100474 A CN 90100474A CN 90100474 A CN90100474 A CN 90100474A CN 1053592 A CN1053592 A CN 1053592A
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- China
- Prior art keywords
- funnel
- gas
- mechanical feeding
- feeding attachment
- feed system
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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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-
- 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
- B65G53/40—Feeding or discharging devices
- B65G53/48—Screws or like rotary conveyors
-
- 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
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/16—Gas pressure systems operating with fluidisation of the materials
- B65G53/18—Gas pressure systems operating with fluidisation of the materials through a porous wall
- B65G53/22—Gas pressure systems operating with fluidisation of the materials through a porous wall the systems comprising a reservoir, e.g. a bunker
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Air Transport Of Granular Materials (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
A kind of particle feed appliance in order to connection mechanical feeding attachment and gas transmission pipeline comprises: a funnel of being made by gas permeable material, be installed in the closure of making by gastight material, the wall of funnel and shell are determined a breather chamber together, this breather chamber has the import that is connected on the supply pressure gas, its middle shell or towards the wide end of funnel should with mechanical feeding attachment go out interruption-forming sealed engagement and funnel wherein with on its narrow end, be communicated with gas transmission pipeline.
Description
The present invention relates to a kind of being used for such as powdery or fibrous, thread or must shape the feed appliance of particulate material of form.Particularly, relate to and a kind of mechanical feeding attachment is connected to feed appliance on the gas transfer pipeline.This feed appliance often is called " particle feed appliance ", is used for requirement and changes particulate material when the transmission method of transmission pipeline, and the device of transporting particulate material is become a pneumatics (as fluid bed) from mechanical device (as a helical screw feeder).Many existing particle feed appliances only be used to use a large amount of (at a high speed) delivering gas and/or connect the outlet of feed appliance and the diameter of transfer line very little basically.
Feed appliance of the present invention is useful especially when as controlled feed system a part of, because in the compound process of producing metallic matrix, particulate material is delivered to gas transmission pipeline from funnel can utilize the control of spraying composite deposition method to be used in conjunction with entering intrametallic described particulate material.
The step that a kind of typical case's spraying composite deposition method of manufacturing metal matrix composite comprises flows for the atomizing deposite metal, by making the quite cold gas of this strand metal flow direct contact form the thermometal grain flow, one particulate ceramic material is delivered to the range of atomization in fluidizing gas, particulate material described herein and metallic particles combination and a composite deposition metal and particulate material to a collection surface.Usually, the particulate ceramic material from funnel by gas delivery to the range of atomization.Yet, be variable in the ambient pressure situation of the emission point of particle feed pipe, this is because have high swirled jet in spray area.Because variable pressure is arranged on emission point, it is insecure being used to rely on any powdery pay-off of this method of air-flow control particle feeding speed, particularly more outstanding under the situation of low delivery pressure (as: 0.3 Bark) and low delivery speed (as 80 decimeters/minute).In traditional feed system, the particulate material of bulk storage in the funnel is delivered to the range of atomization use two kinds of air-flows: a kind of being used for enters transfer line to the guiding of loose packed particulate material; Another kind is used for particulate material is delivered to the range of atomization.Two kinds of air-flows of this system requirements a bit converge with identical pressure at certain.If the variation of flowing at certain all gas that clearly can cause comprising particulate material of changing on a bit.Use high velocity air may overcome this problem, but can not adopt owing to a lot of reasons.For example, according to the requirement of spraying composite precipitation method, the used air-flow velocity that particulate material is transported to the range of atomization should be slow as far as possible, so that delivery air can not influence the air-flow that is used for atomizing deposite metal in the range of atomization.In addition, because the high speed of particle can produce wearing and tearing, thereby cause reduce greatly equipment life, this wearing and tearing also can reduce owing to the size of particle itself and/or pollute the minimizing that causes particle itself, and therefore, this high velocity air also is nonconforming.If use high delivery air and big pipeline aperture, so just might keep delivery speed on its initial level.Yet, the geometric configuration of range of atomization and size be make the particle inlet port must be quite little (as, diameter is 7 millimeters) accurately be transported to the atomizing zone to greatest extent to guarantee particulate material.
Can be clear that from above, be necessary producing in the metal matrix composite process particulate material is improved from the system that funnel is transported to the gas transportation machine by the spraying composite deposition.This system allows than the aforementioned feeding speed of controlling particulate material preferably.
According to an aspect of the present invention, the present invention proposes a particle feed appliance, be used for a mechanical feeding attachment is connected to a gas transfer pipeline, it comprises a funnel of being made by gas permeable material, be contained in the sealing shell of making by gas impermeable material, the wall of funnel and shell be in conjunction with forming a breather chamber, this chamber provide one with the import of positive delivery air-flow bonded assembly, shell or on the wide end of funnel, form sealed engagement with the outlet of mechanical feeding attachment.And funnel or on its narrow end, be communicated with airflow pipeline.
According to a further aspect in the invention, the invention provides a feed system, be used for producing the metal matrix composite process in spraying composite deposition method, particulate material is transported to a gas delivery pipeline from funnel, this feed system comprises:
(1) mechanical feeding attachment is used for the loose packed particulate material is transported to an outlet from material-storing box,
(2) funnels of making by gas permeable material, be contained in the sealing shell of making by gas impermeable material, the wall of funnel and shell are in conjunction with forming a breather chamber, this chamber provides one and the import of positive delivery air-flow bonded assembly, above-mentioned shell or on the wide end of funnel, form airtight joint with the outlet of mechanical feeding attachment, and funnel or on its narrow end, lead to logical with air delivery tube.
Therefore, feed system of the present invention use mechanical feeding attachment to make particulate material be transported to the particle feed appliance from material-storing box in bulk, and particulate material is entered the gas transport pipeline by the fluidify guiding.The use of mechanical feeding attachment has overcome above-mentioned owing to use air-flow to transport the problem that particulate material produces from material-storing box, this be because, under the situation of using mechanical feeding attachment, the feeding speed of the particulate matter that comes out from material-storing box and other processing conditions are irrelevant, and only relevant with the motor rotary speed of driving device pay-off basically.
Certainly, mechanical feeding attachment is known, and it comprises helical screw feeder vibrating transportation feed appliance and rotovalve feed appliance.We obtain good result of the present invention with helical screw feeder.Have under the ideal conditions of free flowing powder, the solid feeding speed that is transported by mechanical feeding attachment is directly proportional with the CD-ROM drive motor rotating speed.Yet under usual conditions, the mobility status of particulate material and manipulative capability are not desirable, particularly when particulate material very small dimensionally, more outstanding under the out-of-shape, moist and situation about being clamminess.Usually these parameters are relevant with the variation of " bulk density " of powdery.When mechanical feeding attachment was worked with fixed rotating speed, the fluctuation of the mass flow rate of the particulate material that is transported by mechanical feeding attachment may take place.Therefore, the present invention is preferably controlled the particle transportation speed of mechanical feeding attachment by sent back system.In order to reach this point, mechanical feeding attachment is draped or (for example is contained in a weighting apparatus, a force transducer) on, at work, pay-off weight is measured and automatically compare with the changes in weight under the particle feeding speed that expectation requires as the variation of the function of time.If the actual weight changing down in the detected system greater than desired, will correspondingly reduce pay-off speed so and compensate.Conversely, if the actual speed rate that weight reduces less than desired, system will correspondingly improve the speed of mechanical feeding attachment automatically so.The pay-off of this mode is commonly called " loss in weight " feed appliance.In the feeding process, the sampling of test feed appliance weight, calculate final feeding speed and realize that suitable motor speed control action almost carries out continuously, data sampling and micro controller system program are calculated desired finite time and are allowed, from the angle of system's (motor) response, these times are negligible (common every circulation are several milliseconds).Use this " loss in weight " feed appliance, use same pay-off can carry different particulate materials easily, rapidly and exactly, and can be transported to of the conversion of a kind of particulate material of pay-off rapidly and easily to another kind of variable grain material.
The particle feed appliance that mechanical feeding attachment is connected to the pneumatic conveying pipeline of the present invention generally includes: a funnel that has aerated materials to make, it can see through the gas of carrying, when feed appliance is worked, the gas of carrying is fed to the breather chamber between this funnel and exterior air-tight casing, and funnel is installed on this shell.For the speed that makes relevant mechanical feeding attachment is acceptable to relevant particulate material, the discharging of mechanical feeder part is usually than the big order of magnitude of diameter of air shooter.Therefore, the funnel in this particle feed appliance must be realized from inlet diameter.For example be 100 millimeters to outlet diameter, for example 10 millimeters conversion, when producing very little retention volume, do not produce conversion so rapidly, thereby make the pneumatic conveying pipeline cause the obstruction of particulate material.The funnel of particle feed appliance is preferably conical hopper among the present invention.Yet non-conical hopper also can be used for the present invention towards the bowl-type of the narrow end bending that is communicated with the pneumatic conveying pipeline inwardly such as sidewall.In this case, the side that bowl-shaped funnel is crooked inwardly had better not be greatly to the surface that presents a packed particle material when the particle feeder is worked.We have found that best conversion effect is to adopt conical hopper, the angle of its vertical axis and sidewall is 30 °-60 °.Though the shape of shell is undemanding, preferably can be even as big as the uniform breather chamber that provides to encase funnel.The funnel that the present invention uses is made with a kind of material that sees through delivering gas, and when the particle feed appliance was worked, pressure gas was fed to breather chamber.Successfully be used in during funnel of the present invention makes such as the gauze of plastics, filter cotton and the braiding of clinkering.Yet when work, because delivering gas offers venting cavity under pressure, the wall of funnel should have enough mechanical stiffnesses, thereby makes ventilative funnel have enough dimensional stabilitys to stand this pressure.Therefore, we use the metal of sintering metal or punching to make funnel used in this invention.At funnel is under the situation about making with the metal sheet of punching, makes metal sheet carry out favourable distortion from the metal sheet plane all around in the hole, thereby makes particulate material (when feed appliance is worked) avoid perforate.The inside face of funnel is preferably enough smooth, thereby does not allow any particulate material to pile up on it.At work, when particulate material when mechanical feeding attachment freely falls into funnel, rush in funnel and enter gas transmission pipeline by this pea from the delivering gas of breather chamber.
In the accompanying drawings:
Fig. 1 is the section-drawing of enforcement preferred granular materials feed appliance of the present invention,
The service condition of the general diagrammatic sketch 1 particle feed appliance of Fig. 2,
Fig. 3 generally shows feed system of the present invention.
In Fig. 1, the shell 1 that gastight material such as corrosion-resistant steel or aluminium are made has cylindrical side wall 2 and last radial flange 3.Shell has matrix 4, is entered the outlet pipe 5 of directional later exhaust delivery pipe (not shown) by an opening.Should the recline matrix of mechanical feeding attachment outlet of flange 3, and fix on it with the bolt class A of geometric unitA that passes the hole 6 on the flange.Wrapping in the shell 1 is truncated cone shape funnel 7, and it is made with gas permeable material, and its limit becomes miter angle with vertical line.This funnel is placed to the wide end 8 opened near the shell top from placing of it to the narrow end 9 that links to each other with outlet pipe 5 rounding off dimensionally in shell.Ventilating chamber 10 is determined by the sidewall 2 of shell and the sidewall of matrix 4 and conical hopper 7.Has import 11 on the shell, in order to when the particle feed appliance is worked, to introduce positive delivery gas.From Fig. 2 as seen, during operation, particulate material freely falls into this particle feed appliance from the mechanical feeding attachment (not shown).Positive delivery gas enters ventilating chamber 10 from shell upper inlet 11, enters conical hopper 7 from the ventilating chamber.The particulate material 12 that falls into conical hopper or run into delivering gas near the hopper walls place, they were carried by air-flow and entered in the funnel downwards and pour in the outlet pipe 5 of linking the gas transmission pipeline (not shown) this moment.
In Fig. 3, particle feed appliance illustrated in figures 1 and 2 is connected on the helical screw feeder 14 of motor driven by flange 3.This helical screw feeder is delivered to outlet 13 with particulate material 12 from osed top material-storing box 15 in bulk when work, freely fall into the conical hopper 7 of particle feed appliance at outlet 13 place's particulate materials.For making the delivering gas of introducing the breather chamber 10 between shell 1 and the funnel 7 by desired direction and flow rate, the most handy pipe 16 comes the space 18 of connecting bolt device output area 17 and material-storing box particulate material top.So when delivering gas flows, the air pressure at 17 and 18 places will equate, carry particle can not be subjected to adverse influence like this by any pressure that forms in the system.In general, pipe 16 comprises or restriction granular material materials flow and the delivery air device by this pipe is housed, but it still allows the equalization of pressure between material-storing box and the particle feed appliance.For example, pipe 16 can contain or install a pressure equalisation valve, and it only need periodically open any pressure to form in the delivery system, and this feature is favourable under low flow velocity.In addition, if do not adopt the muffler 16 that has or do not have control cock to connect the head room 18 of funnel inlet 17 and material-storing box, the material-storing box head room can connect an independent air inlet system (not shown), it is automatic guidance, makes the pressure at material-storing box top be numerically equal to the air pressure at 17 places.Under the situation that gas volume is bigger in material-storing box, in the system with independent air inlet system be material-storing box supply gas with than in system with muffler 16 better, this is because in using the system of muffler, equalization of pressure will cause the gas flow of changing in the funnel, thereby destroy the even transmission of solid in the delivery duct.
Just preceding noted earlier, spraying composite deposition method requires the gas that carries of the particulate material of maximum and minimum.Its ratio is referred to as sliding " phase density " (phase density), code name be μ wherein
μ=(solid mass flow rate)/(gas mass velocity)
Some powder intensive phase, μ=50-200 when about 1 meter per second of speed carries., be absolutely necessary near blocking in the pipeline condition following time in service conditions with the experience of this these powder of mode treatment.Yet, in order to ensure the accurate operation of " loss in weight " feed appliance, need be at the opposite end of phase density scope (being μ=1-10, the V=20-40 meter per second) operation delivery duct, condition at this moment is similar to the condition of open tube.Another advantage of this operating mode is, even the relatively normally low pipe pressure of powder stream has minor swing (pressing fluctuation to cause by pipe) easily to measure in the delivery duct.In intensive conveying mutually, the big fluctuation in the efflux of solids may be left in the basket, and this is because they press institute to cover by desired normal senior executive.
Feed appliance of the present invention system can be 10 meter per seconds in speed.When being 20-50, phase density works quite satisfactorily.Yet this transmission (promptly moving/slide bed and heap) pattern can not provide the result of hope with regard to the metal matrix composite product structure.The present invention has been successfully used to carry SiC powder (F230 fine sand, F600 fine sand and F1000 fine sand), transmits air-flow from 45 * 10
-3To 85 * 10
-3Newton meter
3/ minute, the scope of delivery speed is from the 0.5-3.5 kg/minute.Term " F230,600 and 1000 sand grains " FEPA standard 42-GB-1984 and USSt ANSI B.74.12-1976 in existing narration.
In case the conveyer motor cuts out, clean delivery duct rapidly and do not adopt the way that gradually reduces powder concn in the delivery duct.
Example:
Above-mentioned feed system has been used for carrying multiple particulate material under various flow velocitys.Found that this system still keeps even flow when working under high solid density.Following table is represented working result:
Table 1
Grain type grade/close the delivery duct of 50% flow velocity air-flow solid
Size (1)
（kg/min） （NdM
3/min） （kg/Nm
3）
SiC F600 0.5 45 11.1 3m×8mm
(10 μ m) diameter
SiC ″ 1.0 65 15.4 12m×10mm
Diameter
″ （3） ″ 2.0 95 21.1 3m×8mm
Diameter
″ ″ 3.0 125 24.0 ″
″ （4） ″ 3.5 140 25.0 ″
″ ″ 3.0 88 34.1 ″
BC ″ 1.0 80 12.5 2m×10mm
Diameter
″ ″ 1.5 87.5 17.1 ″
SiC F230 1.5 87.5 17.1 ″
（53μm）
″ F400 ″ ″ ″ ″
（17μm）
″ F600 ″ ″ ″ ″
″ F800 ″ ″ ″ ″
（6μm）
″ F1000 ″ ″ ″
（4μm）
Table 1(is continuous)
Grain type grade/close the delivery duct of 50% flow velocity air-flow solid
Size (1)
（kg/min） （NdM
3/min） （kg/Nm
3）
″ F230/ ″ ″ ″ ″
F1000（2）
″ F600 3.0 200 15.0 ″
ZrO（5） 12μm 1.0 80 12.5 ″
SiN 3μm 1.0 80 12.5 ″
″ ″ 1.5 87.5 17.1 ″
MgO 12μm 1.5 87.5 17.1 ″
AlO 18μm 1.5 87.5 17.1 ″
TiB 10μm 2.0 95 21.1 ″
Table is annotated:
(1) the density of solid value is by air-flow * 10
3Removing flow velocity draws
(2) 50: 50% percentage by weights mix
(3) helical screw feeder pressure is 1.0 bar g α 2kg/min
(4) helical screw feeder pressure is 3.0bar g α 3.5kg/min
(5) helical screw feeder pressure is 2.5 bar g
As 0.5,2.0,3.0 and the table of the SiC of 3.5kg/min in preceding 6 show and can obtain high density of solid.Other shows in the table, the ability of the scope of feed appliance processing material of the present invention and the size of particle.In all cases, all obtained gratifying uniform flowing.
Claims (11)
1, a kind of particle feed appliance in order to connection mechanical feeding attachment and gas transmission pipeline comprises:
A funnel of making by gas permeable material, be installed in the closure of making by gastight material, the wall of funnel and shell are determined a breather chamber together, this breather chamber has the import that is connected on the supply pressure gas, its middle shell or towards the wide end of funnel should with mechanical feeding attachment go out interruption-forming sealed engagement and funnel wherein with on its narrow end, be communicated with gas transmission pipeline.
2, according to the feed appliance of claim 1, wherein funnel is a conical hopper.
3, according to the feed appliance of claim 2, wherein the angle of the sidewall of conical hopper and vertical axis is 30 °-60 °.
4, a kind of feed system is used in the spraying composite deposition method of producing metal matrix composite particulate material being transported to gas transmission pipeline from material-storing box, and this feed system comprises:
(1) with particulate material from material-storing box in bulk deliver to outlet mechanical feeding attachment and
Make and be installed in funnel on the shell of making by gastight material by gas permeable material for (2) one, the wall of this funnel and shell is determined a breather chamber together, this breather chamber has the import that is connected to the supply pressure gas, above-mentioned housing or be connected with mechanical feeding attachment forming gas tight seal towards the wide end of funnel, above-mentioned funnel or be communicated with gas transmission pipeline towards its narrow end.
5, according to the feed system of claim 4, wherein mechanical feeding attachment is the helical screw feeder of motor driven.
6, according to the feed system of claim 4 or 5, wherein the operation of mechanical feeding attachment is regulated by automatic control device, has constant normal mass velocity to guarantee particulate material.
7, according to the feed system of arbitrary claim of claim 4-6, wherein funnel is bevelled.
8, according to the feed system of claim 7, wherein the angle of the sidewall of conical hopper and vertical axis is 30 °-60 °.
9, according to the feed system of arbitrary claim of claim 4-8, wherein the diameter of mechanical feeding attachment outlet is about 100 millimeters, and wherein feed system is to about 10 millimeters of the diameter of gas transmission pipeline outlet.
10, according to the feed system of the arbitrary claim of claim 4-9, wherein the outlet area of mechanical feeding attachment is suitable for employing connecting tube class A of geometric unitA to be connected with the space of material-storing box endoparticle material top.
11, according to the feed system of the arbitrary claim of claim 4-9, wherein link on the forced gas supply device in the space of material-storing box endoparticle material top, this device is controlled, and is numerically equal to the pressure of mechanical feeding attachment outlet area with the pressure that keeps this space.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8901580.4 | 1989-01-25 | ||
| GB898901580A GB8901580D0 (en) | 1989-01-25 | 1989-01-25 | Feeder for particulate material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1053592A true CN1053592A (en) | 1991-08-07 |
Family
ID=10650559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90100474A Pending CN1053592A (en) | 1989-01-25 | 1990-01-25 | The feed appliance that is used for particulate material |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0455686A1 (en) |
| JP (1) | JPH04503348A (en) |
| KR (1) | KR910700186A (en) |
| CN (1) | CN1053592A (en) |
| AU (1) | AU624220B2 (en) |
| CA (1) | CA2045638A1 (en) |
| GB (1) | GB8901580D0 (en) |
| WO (1) | WO1990008723A1 (en) |
| ZA (1) | ZA90513B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101454206B (en) * | 2006-05-31 | 2011-10-12 | 菲利普莫里斯生产公司 | Applicator wheel for filling cavities with metered amounts of particulate material |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4105663A1 (en) * | 1991-02-22 | 1992-09-03 | Metri Airfluid Ag | DEVICE FOR SUPPLYING AN ELECTROSTATIC POWDER COATING DEVICE WITH A POWDER AIR FLOW |
| WO2004087331A1 (en) * | 2002-10-14 | 2004-10-14 | H. Börger & Co. GmbH | Method and device for transporting pulverulent material |
| DE102009057380A1 (en) * | 2009-12-09 | 2011-06-16 | Uhde Gmbh | Device for feeding a fluid into a solids conveying line |
| RU2671464C1 (en) * | 2017-12-05 | 2018-10-31 | Федеральное государственное бюджетное образовательное учреждение высшего образования Костромская государственная сельскохозяйственная академия | Device for ventilation and transportation of grain heaps |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1616547A (en) * | 1926-04-03 | 1927-02-08 | Smidth & Co As F L | Handling dry pulverulent materials |
| US2793914A (en) * | 1953-01-02 | 1957-05-28 | Stamicarbon | Apparatus for transporting finely divided solid materials in carrier gas streams |
| DE1197384B (en) * | 1956-06-25 | 1965-07-22 | Frantisek Tikal | Device for conveying powdery or fine-grained goods |
| DE1262900B (en) * | 1962-08-17 | 1968-03-07 | Siderurgie Fse Inst Rech | Pneumatic emptying device for powdery or granular substances in a distribution container |
| US3432208A (en) * | 1967-11-07 | 1969-03-11 | Us Air Force | Fluidized particle dispenser |
| FR2373469A1 (en) * | 1976-12-10 | 1978-07-07 | Colmant Cuvelier | STORAGE AND EXTRACTION DEVICE FOR PULVERULENT PRODUCTS |
| AU550269B2 (en) * | 1981-04-06 | 1986-03-13 | Kockums Industries (Aust.) Pty. Ltd. | Handling particulate material |
| DE3721258A1 (en) * | 1987-06-27 | 1988-04-28 | Krupp Gmbh | Method for the production of dispersion materials |
-
1989
- 1989-01-25 GB GB898901580A patent/GB8901580D0/en active Pending
-
1990
- 1990-01-24 ZA ZA90513A patent/ZA90513B/en unknown
- 1990-01-25 WO PCT/GB1990/000105 patent/WO1990008723A1/en not_active Application Discontinuation
- 1990-01-25 EP EP90902334A patent/EP0455686A1/en not_active Withdrawn
- 1990-01-25 AU AU49637/90A patent/AU624220B2/en not_active Ceased
- 1990-01-25 CN CN90100474A patent/CN1053592A/en active Pending
- 1990-01-25 CA CA002045638A patent/CA2045638A1/en not_active Abandoned
- 1990-01-25 JP JP2502670A patent/JPH04503348A/en active Pending
- 1990-01-25 KR KR1019900702151A patent/KR910700186A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101454206B (en) * | 2006-05-31 | 2011-10-12 | 菲利普莫里斯生产公司 | Applicator wheel for filling cavities with metered amounts of particulate material |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2045638A1 (en) | 1990-07-26 |
| GB8901580D0 (en) | 1989-03-15 |
| EP0455686A1 (en) | 1991-11-13 |
| AU624220B2 (en) | 1992-06-04 |
| WO1990008723A1 (en) | 1990-08-09 |
| JPH04503348A (en) | 1992-06-18 |
| AU4963790A (en) | 1990-08-24 |
| ZA90513B (en) | 1990-10-31 |
| KR910700186A (en) | 1991-03-14 |
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