CN201095547Y - Feeding screw for powder air conveying - Google Patents
Feeding screw for powder air conveying Download PDFInfo
- Publication number
- CN201095547Y CN201095547Y CNU2007200767254U CN200720076725U CN201095547Y CN 201095547 Y CN201095547 Y CN 201095547Y CN U2007200767254 U CNU2007200767254 U CN U2007200767254U CN 200720076725 U CN200720076725 U CN 200720076725U CN 201095547 Y CN201095547 Y CN 201095547Y
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- Prior art keywords
- screw rod
- powder
- feed hopper
- carried
- strength
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Abstract
The utility model relates to a powder transportation device, in particular to a powder pneumatic transmission spiral feeder which adopts a spiral groove to delivery power which enters into a pneumatic feed delivery pipe and then is carried by air in the pneumatic delivery pipe and delivered to other places. The powder pneumatic deliver spiral feeder comprises a screw rod, a hopper and a pneumatic feed delivery pipe, wherein, the hopper is positioned above the screw rod and is communicated with a spiral groove of the screw rod, and the pneumatic feed delivery pipe is positioned at the terminal end of the screw rod and communicated with the hopper via the spiral groove. A material container is arranged at the bottom part of the hopper, and the screw rod is positioned in the cavity between the material container and the hopper. Material containing space is remained between the screw rod and the material container. By increasing the material containing space around the spiral groove, the spiral groove can be full of power all the time, so that the powder can be more evenly and stably supplied.
Description
Technical field
The utility model relates to a kind of device of carrying powder, specifically, be the helical screw feeder that a kind of powder strength is carried usefulness, this feed appliance adopts plug helix that powder is carried, make it enter the strength conveying pipeline, carry powder by the gas in the pneumatic carrier then it is delivered to other places.
Background technology
So-called powder strength is carried, and promptly adopts gas as transmitting power, carries powder and carries.Helical screw feeder then is commonly used for powder and supplies with.The helical screw feeder of using has the mono-screw conveying structure at present, and the employing vibration and the spiral that also have are knockdown.The helical screw feeder keystone configuration comprises feed hopper, screw rod and strength feeding device, feed hopper is positioned at the screw rod top, and the strength feeding device is positioned at the screw rod end, and the powder in the feed hopper falls in the plug helix of screw rod, through the screw rod rotation, powder conveying is arrived in the strength feeding device.The bottom has a feed opening but common structure all is feed hopper, the feed opening sectional area is less than the feed hopper bottom section, powder falls in the plug helix by feed opening, cause blanking velocity inhomogeneous like this, powder in the feed hopper more for a long time, by gravity powder blanking velocity is very fast, otherwise then slower; The powder bigger for viscosity often can not in time drop in the plug helix.In addition, feeding speed is influenced by the gaseous tension in the strength conveying pipeline, and greatly then the terminal pressurized of screw rod is big for pressure, and the powder speed of advance is lower, otherwise then very fast.Except feed opening, all match with diameter with screw rod in each position of the outer tube of screw rod, because plug helix space constraint, when carrying the less materials such as coal dust of granularity, because coal dust microparticle surfaces free energy is than higher, suction becomes sticky easily, flowing power is poor, screw rod is easy to make coal dust to form cylinder-like structure in rotary course, and hanging takes place easily, is interrupted phenomenon thereby produce to carry.Therefore these strengths are carried homogeneity and the stability that all is difficult to guarantee feeding with helical screw feeder.
Japanese Patent JP09077255A discloses a kind of powder Pneumatic conveyer, this device screw rod is arranged in the powder conveying pipe, feed hopper is positioned at powder conveying pipe top and links with it, the powder conveying pipe is terminal to link with a strength transfer pot, powder conveying pipe end is provided with boiler check valve, prevents powder gas mixture in the strength transfer pot into powder conveying pipe that flows backwards; In addition, also be provided with the fluidisation plate in strength transfer pot bottom, powder through the carrier gas fluidisation, mix after, blow out from the top exit of strength transfer pot.This device is mainly used in large-scale production load transfer device, and powder granule is bigger, and the powder less for granularity still above-mentioned material suspension phenomenon can occur, thereby causes carrying inhomogeneous.
The utility model content
The purpose of this utility model is to provide a kind of powder strength to carry and use helical screw feeder, and this feed appliance is by increasing the charge space around the plug helix, avoiding material suspension phenomenon described in the prior art, thereby make powder supply with more even, stablize.
The utility model is achieved in that a kind of powder strength conveying helical screw feeder, include screw rod, feed hopper, strength conveying pipeline, feed hopper is positioned at screw rod top and links with the plug helix of screw rod, the strength conveying pipeline is positioned at the screw rod end, and is connected with feed hopper by plug helix; The feed hopper bottom is provided with a charge body, in the cavity of screw rod between charge body and feed hopper, leaves the charge space between screw rod and the charge body.
Described feed hopper top is provided with seal cover cap, seal cover cap is provided with the pressurization hole, pressurization hole internal pressure is identical with strength conveying pipeline internal pressure, and the suffered atmospheric pressure of powder promptly reaches balance like this, thereby the feed speed of powder is not subjected to the influence of strength conveying pipeline internal gas pressure pressure.
Described feed hopper and charge body limit portion are provided with the flange that matches with screw rod, are provided with seal ring in the flange, avoid the gas in the strength conveying pipeline to enter plug helix like this, also avoid powder refluence flow direction motor one side in the plug helix.
Described charge body is the part cylindrical shape coaxial with screw rod, and the charge space around the plug helix is identical like this, and the powder in the plug helix just can not push along with the rotation of screw rod or loose.
Described screw rod is a double-spiral structure.
Described screw rod is driven by buncher, according to different feeding speed demands, adjusts the rotating speed of screw rod.
The utility model is provided with the charge body below feed hopper, increase plug helix charge space on every side, increases the flowable of powder, thereby make powder not be subjected to viscosity influence, can be full of plug helix always, avoid material suspension phenomenon of the prior art, thereby it is more uniform and stable that powder is supplied with.Further pressurizeed in the feed hopper top, make the suffered air pressure of powder reach balance, thereby further stablized the conveying of powder.The utility model is simple in structure, realizes easily, is specially adapted to the supply of the following powder of 100 orders.
Description of drawings
Fig. 1 is the utility model powder strength conveying helical screw feeder structural representation;
Fig. 2 is a schematic side view of the present utility model.
Among the figure: 1 screw rod, 2 feed hoppers, 3 strength conveying pipelines, 4 charge bodies, 5 bunchers, 6 seal cover caps, 7 packing seals, 8 pressurization holes, 9 flanges.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2, a kind of powder strength is carried and is used helical screw feeder, includes screw rod 1, feed hopper 2, strength conveying pipeline 3, charge body 4, and screw rod 1 is a double-spiral structure, and feed hopper 2 is back taper, and charge body 4 is the part cylindrical shape.Charge body 4 is fixed in feed hopper 2 bottoms, can fix by welding manner, in the cavity of screw rod 1 between charge body 4 and feed hopper 2, and with charge body 4 coaxial (referring to Fig. 2), leave the charge space between screw rod 1 and the charge body 4, powder is full of the charge space, because increased the charge space, but the increasing of the powder flowing space, thus reduced by viscosity influence, just can not produce material suspension phenomenon takes place described in the background technology, thereby make feed stable.Feed hopper 2 is positioned at screw rod 1 top, and its bottom is open-minded fully, and the plug helix of bottom and screw rod links, powder just can more unimpededly fall in the plug helix like this, no matter to particle still is the little powder of particle greatly, all can in time be full of plug helix, make blanking velocity can not be subjected to gravity effect.Strength conveying pipeline 3 is positioned at screw rod 1 end, and be connected with feed hopper 2 by plug helix, screw rod 1 is driven by buncher 5, under buncher 5 drives, screw rod 1 rotation is promoting powder and is advancing, powder enters strength conveying pipeline 3 after arriving screw rod 1 end, is carried by the gas in the strength conveying pipeline 3 and is transported to other places.Buncher 5 can carry out the rotating speed adjustment to screw rod 1 on demand, thereby finishes the adjustment of feeding speed.
Described feed hopper 2 tops are provided with seal cover cap 6, and seal cover cap 6 belows also are provided with packing seal 7, and feed hopper 2 is just isolated with outside atmosphere like this; Seal cover cap 6 is provided with pressurization hole 8, pressurization hole 8 communicates with feed hopper 2, pressurization hole 8 internal pressures are identical with strength conveying pipeline 3 internal pressures, can will carry the gas of usefulness to be incorporated in the pressurization hole 8 by a pipeline, thereby the gaseous tension that guarantees to be transported to feed hopper 2 tops be identical with pressure in the strength conveying pipeline 3 in real time.Total system has just realized equilibrium of pressure like this, and delivery speed can not be subjected to the influence of strength conveying pipeline 3 internal pressures.
Described feed hopper 2 and charge body 4 limit portions are provided with the flange 9 that matches with screw rod 1, be provided with seal ring in the flange 9, like this screw rod 1 is played sealing function, guarantee that the not past buncher side 5 of powder is to flowing, guarantee that the powder gas mixture in the strength conveying pipeline 3 does not flow in plug helix, thereby screw rod is normally rotated.
Claims (6)
1. a powder strength is carried and is used helical screw feeder, include screw rod, feed hopper, strength conveying pipeline, feed hopper is positioned at screw rod top and links with the plug helix of screw rod, the strength conveying pipeline is positioned at the screw rod end, and be connected with feed hopper by plug helix, it is characterized in that: the feed hopper bottom is provided with a charge body, in the cavity of screw rod between charge body and feed hopper, leaves the charge space between screw rod and the charge body.
2. powder strength according to claim 1 is carried and used helical screw feeder, it is characterized in that: described feed hopper top is provided with seal cover cap, and seal cover cap is provided with the pressurization hole, and pressurization hole internal pressure is identical with strength conveying pipeline internal pressure.
3. powder strength according to claim 1 and 2 is carried and is used helical screw feeder, and it is characterized in that: described feed hopper and charge body limit portion are provided with the flange that matches with screw rod, are provided with seal ring in the flange.
4. powder strength according to claim 1 and 2 is carried and used helical screw feeder, it is characterized in that: described charge body is the part cylindrical shape coaxial with screw rod.
5. powder strength according to claim 1 and 2 is carried and is used helical screw feeder, and it is characterized in that: described screw rod is a double-spiral structure.
6. powder strength according to claim 1 and 2 is carried and is used helical screw feeder, and it is characterized in that: described screw rod is driven by buncher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200767254U CN201095547Y (en) | 2007-10-26 | 2007-10-26 | Feeding screw for powder air conveying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200767254U CN201095547Y (en) | 2007-10-26 | 2007-10-26 | Feeding screw for powder air conveying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201095547Y true CN201095547Y (en) | 2008-08-06 |
Family
ID=39922604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200767254U Expired - Lifetime CN201095547Y (en) | 2007-10-26 | 2007-10-26 | Feeding screw for powder air conveying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201095547Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082587A (en) * | 2016-06-14 | 2016-11-09 | 广东健诚高科玻璃制品股份有限公司 | A kind of pneumatic defeated feeding system of domestic glass pottery cold top smelting furnace |
| CN106610367A (en) * | 2016-12-26 | 2017-05-03 | 厦门三维丝环保股份有限公司 | Device and method for detecting performance of filter bag or cartridge |
| CN107381098A (en) * | 2017-05-27 | 2017-11-24 | 杨朴 | The lower charging Pneumatic conveying pump of one kind |
| CN107826274A (en) * | 2017-11-20 | 2018-03-23 | 广东至富实业有限公司 | A kind of spiral strength combined type conveys powder charging apparatus |
| CN110340580A (en) * | 2019-07-30 | 2019-10-18 | 郑州机械研究所有限公司 | A kind of hardfacing powder adding device |
-
2007
- 2007-10-26 CN CNU2007200767254U patent/CN201095547Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082587A (en) * | 2016-06-14 | 2016-11-09 | 广东健诚高科玻璃制品股份有限公司 | A kind of pneumatic defeated feeding system of domestic glass pottery cold top smelting furnace |
| CN106610367A (en) * | 2016-12-26 | 2017-05-03 | 厦门三维丝环保股份有限公司 | Device and method for detecting performance of filter bag or cartridge |
| CN107381098A (en) * | 2017-05-27 | 2017-11-24 | 杨朴 | The lower charging Pneumatic conveying pump of one kind |
| CN107826274A (en) * | 2017-11-20 | 2018-03-23 | 广东至富实业有限公司 | A kind of spiral strength combined type conveys powder charging apparatus |
| CN110340580A (en) * | 2019-07-30 | 2019-10-18 | 郑州机械研究所有限公司 | A kind of hardfacing powder adding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAOGANG GROUP CO., LTD. Free format text: FORMER OWNER: BAOSHAN IRON + STEEL CO., LTD. Effective date: 20130108 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201900 BAOSHAN, SHANGHAI TO: 200122 PUDONG NEW AREA, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130108 Address after: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee after: Baosteel Group Corporation Address before: 201900 Fujin Road, Shanghai, orchard, Baoshan District Patentee before: Baoshan Iron & Steel Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080806 |
|
| CX01 | Expiry of patent term |