CN103343975B - Feeding machine - Google Patents
Feeding machine Download PDFInfo
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- CN103343975B CN103343975B CN201310316521.3A CN201310316521A CN103343975B CN 103343975 B CN103343975 B CN 103343975B CN 201310316521 A CN201310316521 A CN 201310316521A CN 103343975 B CN103343975 B CN 103343975B
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- feeding machine
- feed pipe
- conveyor screw
- venturi tube
- pipe
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Abstract
The present invention relates to electro-mechanical arts, in particular to a kind of feeding machine.This feeding machine includes: feed pipe.The inside of feed pipe is provided with displacement conveyor screw, and it is from A end to the pitch of B end from large to small；One end of the tube wall of feed pipe is provided with charging aperture, and charging aperture is in the top of the A end of displacement conveyor screw；The other end of feed pipe is provided with plug-type Venturi tube, and this Venturi tube is in the top of the B end of above-mentioned displacement conveyor screw.The feeding machine that the present invention provides when in use, adds the amount of material, the problem solving the null offset returning wind and rotor weigher instrument in conveying pipe.
Description
Technical field
The present invention relates to electro-mechanical arts, in particular to a kind of feeding machine.
Background technology
In coal metering system fed by rotary kiln, often occur returning to charging aperture inside metering system
Wind and coal dust backflow cause the problems such as the null offset of rotor weigher instrument.Relevant settling mode is:
Utilize spiral coal supply pump (such as Fig. 1, shown) to realize lock wind batch mixing, coal chute 201 sets
Put inclined-plane 203 and counterweight pressing plate 202, run up with hexapolar electrode and make material enter mixing
Feed bin 205, then utilizes Venturi tube 204 principle to make material be transported away by high-pressure blast.This
Planting structure and still there is shortcoming, the coal consumption of rotary kiln is significantly smaller than the conveying capacity of coal pump, from
And the coal in coal chute 201 is seldom, the top of the coal chute 201 being provided with conveyor screw exists
Bigger space, thus can not form negative pressuren zone, the wind sending into Venturi tube can be from coal chute 201
Space, top return in the rotor weigher of charging aperture, still cause the null offset of rotor weigher,
And, coal dust also can be return from space.
Summary of the invention
It is an object of the invention to provide a kind of feeding machine, to solve above-mentioned problem.
The feeding machine that the embodiment of the present invention is provided includes: feed pipe, described feed pipe interior
Portion is provided with displacement conveyor screw, described displacement conveyor screw from A end to the pitch of B end by greatly
Diminish；One end of the tube wall of described feed pipe is provided with charging aperture, and described charging aperture is in described
The top of the A end of displacement conveyor screw；The other end of described feed pipe is provided with plug-type literary composition
Venturi, described Venturi tube is in the top of the B end of described displacement conveyor screw.
When in use, material enters the feeding machine that the embodiment of the present invention is provided from charging aperture
After entering, material is fed forward in feed pipe by displacement conveyor screw, owing to displacement carries
Spiral from A end to the pitch of B end from large to small, therefore, material from A end to B end
During conveying, the space of storeroom can be more and more less, and the degree of packing of material increases, thing
Material is progressively compacted in feed pipe, presents stacking states and be fed forward, thus adds defeated
Sending the amount of material in pipe, whole feed pipe can be filled up after increasing by the amount of material, venturi
The negative pressure that the leeward district of pipe produces will not be weakened, and the wind being blown into Venturi tube can be by B end
Material suck in Venturi tube and by the material outlet of Venturi tube, material transferred out
Go, complete conveying.And, once without space in feed pipe, material then cannot pass through
Backflow in space；On the other hand, the wind being passed through in Venturi tube also will not be again from feed pipe
Space pass, thus, the problem solving the null offset returning wind and rotor weigher instrument.
Accompanying drawing explanation
Fig. 1 shows the front view of traditional feeding machine；
Fig. 2 shows the front view of feeding machine in an embodiment；
Fig. 3 shows the sectional view in A-A direction in Fig. 1.
Detailed description of the invention
Below by specific embodiment and combine accompanying drawing and the present invention is done further in detail
Describe.
A kind of feeding machine, including: feed pipe, the inside of described feed pipe is provided with displacement conveying
Spiral, described displacement conveyor screw is from A end to the pitch of B end from large to small；Described feeding
One end of the tube wall of pipe is provided with charging aperture, and described charging aperture is in described displacement conveyor screw
The top of A end；The other end of described feed pipe is provided with plug-type Venturi tube, venturi
The bearing of trend of pipe is perpendicular with feed pipe, and described Venturi tube is in described displacement conveying spiral shell
The top of the B end of rotation.
Material from charging aperture enter after, material by displacement conveyor screw in feed pipe forward
Conveying, due to displacement conveyor screw from A end to the pitch of B end from large to small, therefore, thing
Expect from A end to B end carry during, the space of storeroom can be more and more less, material
The degree of packing increase, material is progressively compacted in feed pipe, it is the most defeated to present stacking states
Sending, thus add the amount of material in conveying pipe, the amount of material can be sent whole after increasing
Material pipe fills up, and the negative pressure that the leeward district of Venturi tube produces will not be weakened, and is blown into venturi
Go out in material at B end can be sucked Venturi tube by the wind of pipe and by the material of Venturi tube
Material is transferred out by mouth, completes conveying.And, once without space in feed pipe,
Material then cannot be backflowed by space；On the other hand, the wind being passed through in Venturi tube is also
Will not pass from the space of feed pipe again, thus, solve and return wind and the zero of rotor weigher instrument
The problem of point drift.
It follows that describe this feeding machine in detail by some specific embodiments, such as Fig. 2,3
Shown in:
A kind of feeding machine, including: feed pipe 101, one end of the tube wall of feed pipe 101 sets
Having charging aperture, the inside of this feed pipe 101 is provided with displacement conveyor screw 104, and this displacement is defeated
From the pitch of A end 110 to B end 111 from large to small, charging aperture is in change to square auger 104
Away from the top of conveyor screw 104, displacement can be deposited directly on from the material of charging aperture entrance defeated
The top of square auger 104, is fed forward by displacement conveyor screw 104, and material meeting
Because the consolidation that pitch becomes from large to small and gradually, the thing of conveying in displacement conveyor screw 104
Material increases, and is gradually filled with whole feed pipe 101, in the blending bunker 112 of B end 111,
Material consolidation；Plug-type Venturi tube 108 is arranged at the other end of feed pipe 101,
It is in the top of the B end 111 of displacement conveyor screw 104, owing to feed pipe 101 is full of thing
Material, the wind to Venturi tube 108 conveying will not pass from feed pipe 101 and (i.e. will not produce
Return wind phenomenon), utilize Venturi tube principle (in Venturi tube, when blowing air over obstacle,
Above the lee face of obstacle, near ports air pressure is relatively low, thus produces adsorption
And cause the flowing of air.The principle of Venturi tube is the simplest, it be exactly air-flow by
Slightly attenuate, to accelerate gas flow rate, make gas form one " very at the rear side of venturi outlet
Empty " district), the bigger negative pressure formed in the leeward district of Venturi tube 108.
In order to strengthen the mixed effect of material in feed pipe 101, can be in Venturi tube 108
Undergauge at inside spiral wind line is set, make high-pressure blast rotate, thus strengthen compounding effect,
By pipeline, (this is high-pressure blast blower fan to the air inlet 102 of Venturi tube 108, logical with blower fan
It is frequently referred to roots blower) it is connected, high-pressure rotary wind comes in and goes out in Venturi tube 108, by
In negative pressure, material can be sucked literary composition at the displacement conveyor screw 104 of B end 111 by high-pressure blast
In venturi 108, and discharged by the discharging opening of Venturi tube 108, complete feeding.
In order to preferably control the full state of the material in feed pipe 101, can be as lowered
Perfect square formula: mode one, the rotary speed of adjustment displacement conveyor screw 104；Mode two, logical
Cross adjustment charging rate；
In certain embodiments, for aforesaid way one, displacement conveyor screw 104 can use
Rotary power drives assembly to be driven, and this rotary power driving assembly includes is furnished with frequency conversion
The electromotor of speed governing, by the output frequency of frequency control electromotor, it is possible to drive parameter defeated
The rotary speed of square auger.
In certain embodiments, for aforesaid way two, at the charging aperture of feed pipe 101
Being provided with feed pipe 109, this feed pipe 109 is provided with plural level-sensing device 106, by adjusting
The level-sensing device 106 of whole correspondence position, it is possible to the speed of the pan feeding of difference doses is adjusted
Whole, it is achieved feed pipe 101 is in full material state.
In order to accurately material be sucked Venturi tube 108 from displacement conveyor screw 104, because of
This, in certain embodiments, the material inlet of Venturi tube 108 is in displacement conveyor screw
The top of the B end 111 of 104, it is ensured that form negative pressuren zone, can inhale the material of consolidation the most
Enter in Venturi tube 108, accelerate the conveying of material.
The flow velocity of high-pressure blast, when coming in and going out Venturi tube 108, can be controlled by high-pressure blast,
The mode controlled can use high-pressure blast row's speed of the air outlet controlling roots blower.At Wen Qiu
In pipe 108 air inlet 102 and blower fan between connection pipeline on the first control valve is set
103。
This feeding machine also includes paying airduct 105, one end of this pair of airduct 105 and Venturi tube
The discharge port end of 108 is connected, and the other end is connected with air inlet 102 end of Venturi tube 108.
It is provided with the second control valve 107 on airduct 105 paying.Second controls valve 107 and first
Controlling valve 103 compounding practice, when material is less than blanking, first controls valve 103 and closes,
Second control valve 107 is opened simultaneously.So high-pressure blast has walked a pair pipeline, it is ensured that without return
Phenomenon.After having processed scarce material phenomenon, first controls valve 103 opens, the second control simultaneously
Valve 107 processed is closed, and starts normally to carry material.
Material from charging aperture enter after, material by displacement conveyor screw in feed pipe forward
Conveying, due to displacement conveyor screw from the diameter of A end 110 to B end 111 and pitch by greatly
Diminish, therefore, material from A end 110 to B end 111 carry during, storeroom
Space can be more and more less, the degree of packing of material increases, and material is progressively pressed in feed pipe
Real, present stacking states and be fed forward, thus add the amount of material, material in conveying pipe
Amount increase after whole feed pipe can be filled up, the negative pressure that the leeward district of Venturi tube produces
Will not be weakened, the wind being blown into Venturi tube can be by blending bunker 112 at B end 111
In material sucks Venturi tube and by the material outlet of Venturi tube, material is transferred out,
Complete metering.And, once without space in feed pipe, material then cannot pass through space
Backflow；On the other hand, the wind being passed through in Venturi tube also will not be again from the sky of feed pipe
Gap passes, thus, the problem solving the null offset returning wind and rotor weigher instrument.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention,
For a person skilled in the art, the present invention can have various modifications and variations.All
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made,
Should be included within the scope of the present invention.
Claims (9)
1. a feeding machine, it is characterised in that including: feed pipe, the inside of described feed pipe is provided with
Displacement conveyor screw, described displacement conveyor screw is from A end to the pitch of B end from large to small；Described send
One end of the tube wall of material pipe is provided with charging aperture, and described charging aperture is in the A end of described displacement conveyor screw
Top；The other end of described feed pipe is provided with plug-type Venturi tube, and described Venturi tube is in
The top of the B end of described displacement conveyor screw, the inwall at the undergauge of described Venturi tube is provided with spiral
Wind line.
Feeding machine the most according to claim 1, it is characterised in that also include that rotary power drives
Assembly, to drive described displacement conveyor screw to rotate；
Described rotary power drives assembly to include: be furnished with the electromotor of frequency control.
Feeding machine the most according to claim 1, it is characterised in that be provided with at described charging aperture into
Material pipe, described feed pipe is provided with plural level-sensing device.
Feeding machine the most according to claim 1, it is characterised in that the material of described Venturi tube
Import is in the top of the B end of described displacement conveyor screw.
5. according to the feeding machine described in any one of claim 1-4, it is characterised in that described venturi
The air inlet of pipe passes through pipeline connecting fan.
Feeding machine the most according to claim 5, it is characterised in that described pipeline is provided with the first control
Valve processed.
7. according to the feeding machine described in any one of claim 1-4, it is characterised in that also include paying wind
Pipe, one end of described pair of airduct is connected with the discharge port end of described Venturi tube；The other end and described literary composition
The air inlet end of venturi is connected.
Feeding machine the most according to claim 7, it is characterised in that described pair of airduct is provided with second
Control valve.
9. according to the feeding machine described in any one of claim 1-4, it is characterised in that described venturi
The bearing of trend of pipe is perpendicular with described feed pipe；Described displacement conveyor screw and the axle of described feed pipe
To being parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310316521.3A CN103343975B (en) | 2013-07-25 | 2013-07-25 | Feeding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310316521.3A CN103343975B (en) | 2013-07-25 | 2013-07-25 | Feeding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103343975A CN103343975A (en) | 2013-10-09 |
| CN103343975B true CN103343975B (en) | 2016-08-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310316521.3A Active CN103343975B (en) | 2013-07-25 | 2013-07-25 | Feeding machine |
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| Country | Link |
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| CN (1) | CN103343975B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457224B (en) * | 2014-12-25 | 2016-02-24 | 潍坊天晟电子科技有限公司 | A kind of quantitative feed system of dry method cement rotary kiln raw material of improvement and manufacturing technique method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB519973A (en) * | 1938-07-27 | 1940-04-10 | Harold Julius Ness | Improvements in or relating to apparatus for supplying pulverulent material, and in particular for supplying the same to a furnace |
| WO2001076992A1 (en) * | 2000-04-11 | 2001-10-18 | Väderstad-Verken Ab | Agricultural machine |
| CN2771668Y (en) * | 2005-02-07 | 2006-04-12 | 煤炭科学研究总院北京煤化工研究分院 | Uniformly coal-ash feeding apparatus |
| CN201458346U (en) * | 2009-06-10 | 2010-05-12 | 煤炭科学研究总院 | Pulseless coal powder feeding device |
| CN203413658U (en) * | 2013-07-25 | 2014-01-29 | 高伦 | Feeding machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2319424C2 (en) * | 2006-03-27 | 2008-03-20 | Федеральное государственное образовательное учреждение высшего профессионального образования Ставропольский государственный аграрный университет | Extruding press for preparing of mixed feeds |
| CN102072482B (en) * | 2010-07-14 | 2012-12-19 | 杜克镛 | Biomass energy combustor |
| CN202953463U (en) * | 2012-11-28 | 2013-05-29 | 佛山市沛沣科技有限公司 | Powder material conveyer |
-
2013
- 2013-07-25 CN CN201310316521.3A patent/CN103343975B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB519973A (en) * | 1938-07-27 | 1940-04-10 | Harold Julius Ness | Improvements in or relating to apparatus for supplying pulverulent material, and in particular for supplying the same to a furnace |
| WO2001076992A1 (en) * | 2000-04-11 | 2001-10-18 | Väderstad-Verken Ab | Agricultural machine |
| CN2771668Y (en) * | 2005-02-07 | 2006-04-12 | 煤炭科学研究总院北京煤化工研究分院 | Uniformly coal-ash feeding apparatus |
| CN201458346U (en) * | 2009-06-10 | 2010-05-12 | 煤炭科学研究总院 | Pulseless coal powder feeding device |
| CN203413658U (en) * | 2013-07-25 | 2014-01-29 | 高伦 | Feeding machine |
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| CN103343975A (en) | 2013-10-09 |
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