CN105836487A - Immersed type spiral feeder for trace amount of fine powder - Google Patents
Immersed type spiral feeder for trace amount of fine powder Download PDFInfo
- Publication number
- CN105836487A CN105836487A CN201610252266.4A CN201610252266A CN105836487A CN 105836487 A CN105836487 A CN 105836487A CN 201610252266 A CN201610252266 A CN 201610252266A CN 105836487 A CN105836487 A CN 105836487A
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- Prior art keywords
- powder
- powder feeding
- cabin
- feeding equipment
- helix
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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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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
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
- B01F27/906—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms with fixed axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
- B65D88/744—Large containers having means for heating, cooling, aerating or other conditioning of contents heating or cooling through the walls or internal parts of the container, e.g. circulation of fluid inside the walls
-
- 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
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/26—Screws
- B65G33/265—Screws with a continuous helical surface
-
- 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
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
-
- 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
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
-
- 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
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
- B65G2203/0291—Speed of the load carrier
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses an immersed type spiral feeder for a trace amount of fine powder. The immersed type spiral feeder comprises a powder bin (8), a powder discharging pipe (12), a stirrer (7) and a stirring motor (6). The upper end of the stirrer (7) is fixedly connected with a shaft of the stirring motor (6), and the lower end of the stirrer (7) is arranged in the powder bin (8). The powder bin (8) is a barrel with the upper radius and the lower radius being identical, and the powder bin (8) and the powder discharging pipe (12) are arranged side by side. The immersed type spiral feeder further comprises a conveying sleeve (13), a spiral powder feeding rod (11) and a speed reduction mechanism (2), wherein one end of the conveying sleeve (13) communicates with the lower portion of the powder bin (8), the other end of the conveying sleeve (13) communicates with the upper-middle portion of the powder discharging pipe (12), and the conveying sleeve (13) is arranged horizontally; the speed reduction mechanism (2) is fixedly connected with one end of the spiral powder feeding rod (11), and the speed reduction mechanism (2) is connected with a speed adjusting motor (1); and the free end of the spiral powder feeding rod (11) stretches into the conveying sleeve (13) from the lower portion of the powder bin (8), and the front end of the spiral powder feeding rod (11) is located in the powder discharging pipe (12). The immersed type spiral feeder for the trace amount of fine powder feeds powder uniformly, quantitatively and accurately and is good in stability.
Description
Technical field
The invention belongs to coal dust Dynamic Burning assay device technical field, particularly a kind of uniform to powder, the most accurate, steady
Qualitative good immersion trace fine powder helix powder feeding equipment.
Background technology
The Dynamic Burning of coal dust needs most the problem of solution is how to allow coal dust " move ", and can be continuous, stable and longer
" moving " of time.Powder-feeding amount is affected by many factors such as coal particle size, ambient temperature, viscosity.Coal dust in laboratory
Dynamic Burning test is the most considerably less by powder amount.As a example by carrying stream combustion experimental device, required coal dust about exists
0.2-2g/min, and granularity is relatively thin (typically 10～150um), in irregular shape.
The most conventional microdose heparin device is helix powder feeding equipment, and its spiral powder feeding bar is arranged in powder cabin bottommost, powder cabin bottom
It is generally made into tapered changeover portion.As Chinese invention patent application " pressurization trace quantity helix powder feeding equipment " (application number:
200710019896.8, publication date: on August 8th, 2007) and described.Cause the powder in screw rod to powder a period of time
After, top to powder can not or not even in the pipe to powder bar place, cause to powder the most smooth and inaccurate.Due to
Frictional force between irregular fine particle is relatively big, and mobility is poor, especially in narrow space, relies on merely self gravitation
Be difficult to continuous uniform is deposited to screw rod charging aperture by changeover portion, therefore can there is coal dust bridge formation, lower powder smooth the most not even
The problems such as cutout, accuracy uneven to powder and poor stability.Although user takes some corrective measures, such as, exist
Electromagnetic shaker is set outside powder cabin, agitator is set in powder cabin, but effect is limited.
Effect more preferable microdose heparin device such as scraper-type powder feeding equipment price is up to tens thousand of unit the most on the market, and this grinds to laboratory
The Dynamic Burning experimental study studying carefully coal dust brings certain cost pressure and test difficulty.
Therefore, prior art there is the problem that helix powder feeding equipment that price is low is uneven to powder, accuracy and poor stability.
Summary of the invention
It is an object of the invention to provide a kind of immersion trace fine powder helix powder feeding equipment, to powder uniformly, the most accurately, surely
Qualitative good.
The technical solution realizing the object of the invention is:
A kind of immersion trace fine powder helix powder feeding equipment, including powder cabin, lower tube cell, agitator and stirring motor, described in stir
Mixing device upper end connected with the axle of stirring motor, lower end is placed in powder cabin, and described powder cabin is the drum that upper and lower radius is equal, powder
Storehouse is placed side by side with lower tube cell, also includes that one end communicates with powder cabin bottom, and the other end communicates with lower tube cell middle and upper part, level
The delivery cannula arranged, also includes helix powder feeding bar and the reducing gear being connected with its one end, described reducing gear and speed governing
Motor is connected, and the free end of described helix powder feeding bar stretches into delivery cannula from powder cabin bottom, front end and in lower tube cell, described
The upper end of lower tube cell is communicated with powder cabin upper end by a pressure-equalizing pipe, is provided with air inlet at described pressure-equalizing pipe sidewall.
Compared with prior art, its remarkable advantage is the present invention:
Uniform to powder, the most accurate, good stability.
The above-mentioned advantage of the present invention is realized by following approach:
1, powder cabin designs for straight barrel type, and " sinks " at the bottom of cylinder below helix powder feeding bar, makes helix powder feeding bar be totally submerged
In powder cabin.
2, arranging a heating tape outside powder cabin, heating temperature range is 40 DEG C-200 DEG C, for keeping being dried of material
To improve the mobility of material.
3, helix powder feeding bar uses the steel of rigidity to be processed into spiral type, and surface makes smooth surface, spiral shell through polishing
Revolve more slightly longer than matched delivery cannula to powder pole length.
4, it is provided with multiple layers of vanes formula agitator in powder cabin, mixed material can be played, destroy fine powder bridging, enhancing flow of fines
The effect of dynamic property.
The present invention is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of immersion trace fine powder helix powder feeding equipment of the present invention.
Fig. 2 is the three-dimensional view of immersion trace fine powder helix powder feeding equipment of the present invention.
In figure, label and the effect of each several part are as follows:
1, frequency control motor: drive helix powder feeding bar to rotate；
2, reducing gear: reduce motor output speeds；
3, visualization speed setting controller: coordinate with motor, regulates powder delivery speed, and speed adjustable range is 5r/min-2200r/min；
4, powder cabin heating tape: for the coal dust being dried in powder cabin, reduces coal dust viscosity so that powder delivery is more uniformly, surely
Fixed；
5, temperature controller: control heating tape heating-up temperature 40-100 DEG C of scope；
6, stirring motor: at the uniform velocity, uniformly drive agitator；
7, multiple layers of vanes formula agitator: stirring coal dust, makes coal dust mix homogeneously, prevents blocking, destroy and put up a bridge, strengthen
Coal dust mobility；
8, powder cabin: contain the warehouse of coal dust；
9, pressure-equalizing pipe: keep pressure stability in powder cabin, it is to avoid material reduces makes powder cabin negative pressure occur, under being conducive to
Powder is smooth；
10, air inlet: the First air import needed for burning；
11, helix powder feeding bar: coal dust is carried to powder mouth from Pulverized Coal Bin, is 1cm to powder shank diameter；
12, lower tube cell: for powder delivery；
13, delivery cannula: match with helix powder feeding bar, connects to powder cabin and lower tube cell.
Detailed description of the invention
As shown in Figure 1, 2, immersion trace fine powder helix powder feeding equipment of the present invention, including powder cabin 8, lower tube cell 12, stirring
Device 7 and stirring motor 6, described agitator 7 upper end is connected with the axle of stirring motor 6, and lower end is placed in powder cabin 8, its
Being characterised by: described powder cabin 8 is the drum that upper and lower radius is equal, powder cabin 8 is placed side by side with lower tube cell 12, also includes
One end communicates with powder cabin 8 bottom, and the other end communicates with lower tube cell 12 middle and upper part, horizontally disposed delivery cannula 13, also
Including helix powder feeding bar 11 and the reducing gear 2 connected with its one end, described reducing gear 2 is connected with buncher 1,
The free end of described helix powder feeding bar 11 stretches into delivery cannula 13 from powder cabin 8 bottom, front end and in lower tube cell 12, described
The upper end of lower tube cell 12 is communicated with powder cabin 8 upper end by a pressure-equalizing pipe 9, sets at described pressure-equalizing pipe 9 sidewall
There is air inlet 10.
In addition to lower tube cell 12, the remainder of the present invention can be fixed on bearing.
Powder cabin designs for straight barrel type, and bottom does not has narrow space (for relative coal bunker maximum passage section), does not has inclined-plane yet
" lift " coal dust, decrease blocking and the probability built bridge, can as much as possible utilize the gravity of coal dust as motive force；
Furthermore, the helix powder feeding bar in powder cabin is completely submerged in material, is fully contacted to during to powder powder bar with material,
Material in powder bar and distributed about uniformly, provide good initial condition to the helical feed of coal dust.
For making the viscosity between coal dust less, mobility is more preferable, and coal dust is less susceptible to be attached on helix powder feeding bar so that
More smooth and easy to powder, the coal dust heat drying in powder cabin need to be provided with heating tape 4 outside described powder cabin 8, described in add
The torrid zone 4 electrically connects with a temperature controller 5.
Great many of experiments finds, the temperature control scope of described temperature controller 5 be 40～100 DEG C preferably.
For convenience of speed governing and search out the quantitative relationship between rotating speed and powder outlet quantity, described reducing gear 2 and a visualization tune
Speed controller 3 electrically connects.
Experiment shows, the speed adjustable range of described visualization speed setting controller 3 is 5～2200r/min preferable.
For making coal dust mix homogeneously, preventing blocking, destroy and put up a bridge, strengthen coal dust mobility, described agitator 7 is preferably adopted
With multiple layers of vanes formula agitator.
For ensureing the fewest attachment coal dust, reduce tube wall face and the friction of material, described helix powder feeding bar 11 simultaneously
Using steel to be processed into spiral type, surface is through polishing.
The operating process of the present invention is described below.
Its normal use step is: clean-> test-> charging-> demarcation-> operation.
Before application apparatus of the present invention, the devices such as the helix powder feeding bar of this device, powder cabin inner surface, lower tube cell are carried out clearly
Wash, with anti-pollution feed, experimental precision is produced impact.Afterwards, the frequency control motor of device for opening and stirring motor
Carry out trail run, test device can properly functioning after, closing switch, add test requirements document fineness coal dust, unlatching adds
Torrid zone power supply heats to powder cabin wall, and wall is heated thus heats coal dust in powder cabin, opens blender after building powder cabin lid,
Allowing coal dust thermally equivalent, powder feeding equipment rotating speed is adjusted to relatively big from little, allows the very fast powder delivery of powder mouth under machine supplying powder, and packed with collection
Powder.The powder-feeding amount that debugging needs, needs by scales/electronic balance weighing and manual time-keeping.Powder feeding equipment is adjusted to middling speed powder delivery one
After minute, start to collect the timing powder outlet quantity of 1 minute, through test, the rotating speed of material helix powder feeding bar of the same race and give powder
Change before and after amount has the linear relationship of approximation, with one minute statistics of timing, rotating speed X1Under powder-feeding amount be M1, turn
Speed X2Under powder-feeding amount be M2, then there is M1/X1≈M2/X2, can comparatively fast draw electricity under target powder-feeding amount with this formula
The substantially rotating speed of machine.It is adjusted to the rotating speed calculated, powder delivery one minute, tests about five times, powder outlet quantity of weighing, higher than (low
In) desired value turns down (heightening) rotating speed, final debugging is to suitable rotating speed.
Claims (7)
1. an immersion trace fine powder helix powder feeding equipment, including powder cabin (8), lower tube cell (12), agitator (7) and
Stirring motor (6), described agitator (7) upper end is connected with the axle of stirring motor (6), and lower end is placed in powder cabin (8)
In, it is characterised in that: described powder cabin (8) is the drum that upper and lower radius is equal, powder cabin (8) and lower tube cell (12) and
Discharge is put, and also includes that one end communicates with powder cabin (8) bottom, and the other end communicates with lower tube cell (12) middle and upper part, level
The delivery cannula (13) arranged, also includes helix powder feeding bar (11) and the reducing gear (2) being connected with its one end, institute
Stating reducing gear (2) to be connected with buncher (1), the free end of described helix powder feeding bar (11) is from powder cabin (8)
Delivery cannula (13) is stretched in bottom, front end and in lower tube cell (12), and a pressure is passed through in the upper end of described lower tube cell (12)
Balance pipe (9) communicates with powder cabin (8) upper end, is provided with air inlet (10) at described pressure-equalizing pipe (9) sidewall.
Powder feeding equipment the most according to claim 1, it is characterised in that: it is provided with heating tape in described powder cabin (8) outside
(4), described heating tape (4) electrically connect with a temperature controller (5).
Powder feeding equipment the most according to claim 2, it is characterised in that: the temperature control scope of described temperature controller (5) be 40～
100℃。
4. according to the powder feeding equipment one of claims 1 to 3 Suo Shu, it is characterised in that: described reducing gear (2) and
Visualization speed setting controller (3) electrical connection.
Powder feeding equipment the most according to claim 4, it is characterised in that: the tune of described visualization speed setting controller (3)
Speed scope is 5～2200r/min.
Powder feeding equipment the most according to claim 1, it is characterised in that: described agitator (7) is that multiple layers of vanes formula is stirred
Mix device.
Powder feeding equipment the most according to claim 1, it is characterised in that: described helix powder feeding bar (11) uses steel to add
Work spirality, surface is through polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610252266.4A CN105836487A (en) | 2016-04-21 | 2016-04-21 | Immersed type spiral feeder for trace amount of fine powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610252266.4A CN105836487A (en) | 2016-04-21 | 2016-04-21 | Immersed type spiral feeder for trace amount of fine powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105836487A true CN105836487A (en) | 2016-08-10 |
Family
ID=56588709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610252266.4A Pending CN105836487A (en) | 2016-04-21 | 2016-04-21 | Immersed type spiral feeder for trace amount of fine powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105836487A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112777156A (en) * | 2021-02-02 | 2021-05-11 | 万根河 | Synthetic PU resin constant temperature holding vessel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2720423Y (en) * | 2004-07-27 | 2005-08-24 | 杨上雄 | Coal-powder sampling device |
| CN1721511A (en) * | 2005-07-01 | 2006-01-18 | 煤炭科学研究总院北京煤化工研究分院 | Process for pressurized gasification of dry coal fines |
| CN201442769U (en) * | 2009-05-30 | 2010-04-28 | 潍坊世华化工有限公司 | Multipoint-positioning charging device for powdery material |
| EP2564920A1 (en) * | 2009-08-27 | 2013-03-06 | Inbicon A/S | Particle pump methods and devices. |
| CN203158847U (en) * | 2013-04-19 | 2013-08-28 | 大庆华力机械制造有限公司 | Dry powder blanker |
| CN103482316A (en) * | 2013-08-28 | 2014-01-01 | 苏州国衡机电有限公司 | Spiral pusher |
| CN203602078U (en) * | 2013-12-12 | 2014-05-21 | 北京中矿环保科技股份有限公司 | Feeding buffering bin |
| CN104235857A (en) * | 2014-07-11 | 2014-12-24 | 浙江三联环保机械设备有限公司 | Feeding device of incinerator |
| CN104355139A (en) * | 2014-10-14 | 2015-02-18 | 浙江华彩化工有限公司 | Powdery aid adding machine |
| CN204688826U (en) * | 2015-06-24 | 2015-10-07 | 华润水泥技术研发有限公司 | A kind of Pulverized Coal Bin |
| CN204964250U (en) * | 2015-09-14 | 2016-01-13 | 南京电力设备质量性能检验中心 | Buggy sampling gun |
-
2016
- 2016-04-21 CN CN201610252266.4A patent/CN105836487A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2720423Y (en) * | 2004-07-27 | 2005-08-24 | 杨上雄 | Coal-powder sampling device |
| CN1721511A (en) * | 2005-07-01 | 2006-01-18 | 煤炭科学研究总院北京煤化工研究分院 | Process for pressurized gasification of dry coal fines |
| CN201442769U (en) * | 2009-05-30 | 2010-04-28 | 潍坊世华化工有限公司 | Multipoint-positioning charging device for powdery material |
| EP2564920A1 (en) * | 2009-08-27 | 2013-03-06 | Inbicon A/S | Particle pump methods and devices. |
| CN203158847U (en) * | 2013-04-19 | 2013-08-28 | 大庆华力机械制造有限公司 | Dry powder blanker |
| CN103482316A (en) * | 2013-08-28 | 2014-01-01 | 苏州国衡机电有限公司 | Spiral pusher |
| CN203602078U (en) * | 2013-12-12 | 2014-05-21 | 北京中矿环保科技股份有限公司 | Feeding buffering bin |
| CN104235857A (en) * | 2014-07-11 | 2014-12-24 | 浙江三联环保机械设备有限公司 | Feeding device of incinerator |
| CN104355139A (en) * | 2014-10-14 | 2015-02-18 | 浙江华彩化工有限公司 | Powdery aid adding machine |
| CN204688826U (en) * | 2015-06-24 | 2015-10-07 | 华润水泥技术研发有限公司 | A kind of Pulverized Coal Bin |
| CN204964250U (en) * | 2015-09-14 | 2016-01-13 | 南京电力设备质量性能检验中心 | Buggy sampling gun |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112777156A (en) * | 2021-02-02 | 2021-05-11 | 万根河 | Synthetic PU resin constant temperature holding vessel |
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Application publication date: 20160810 |
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