CN107638819A - A kind of micro continuous feeder of fuel combination - Google Patents
A kind of micro continuous feeder of fuel combination Download PDFInfo
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- CN107638819A CN107638819A CN201710942295.8A CN201710942295A CN107638819A CN 107638819 A CN107638819 A CN 107638819A CN 201710942295 A CN201710942295 A CN 201710942295A CN 107638819 A CN107638819 A CN 107638819A
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- level
- feed bin
- fuel combination
- level feed
- continuous feeder
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Abstract
A kind of micro continuous feeder of fuel combination of the present invention, including feeding system and Component Mixing System.Feeding system includes two-stage feed bin, drive device and control device etc., wherein one-level feed bin volume is larger, material source is provided for two level feed bin, two level feed bin volume is smaller, material is continuously exported in the case where loosening wind action, and continuous-feeding is realized under the collective effect that gravity and Venturi tube high velocity air volume are inhaled.When the position of control valve, height of materials and the distinguished and admirable fast timing of conveying, the blanking amount of two level feed bin is definite value, afterwards by PID control stepper motor rotating speed to maintain constant material level, so as to realize accurate feeding.Two kinds of materials are tangentially sent into hybrid system in the case where conveying wind action, and hybrid system includes two-stage mixing bunker, and mixing twice improves the mixing uniformity of material.The present invention can realize micro continuous accurate feeding, and can realize for a long time uniformly mixing feed for various materials, while also have the advantages of material ratio flexible adjustment in the course of work.
Description
Technical field
The present invention relates to a kind of micro continuous feeder of fuel combination, can be achieved various materials continue accurate supply and
Highly mix, be mainly used in burning and the materials-handling technology field of the solid fuels such as coal dust, gasification char.
Background technology
Enter during the combustion test for carrying out coal dust, gasification char etc. in the lab, it is necessary to carry these materials by gas
Enter in combustion experimental device, and these material particular diameters are smaller, typically at 100 μm or so, and required in combustion test
Delivery rate very little, some are even below 0.2g/min, therefore, how to realize the feed of accurate continuous-stable, to whole experiment
Be smoothed out it is most important.
Existing charging gear has spiral rod type, push type, fluidization formula etc., and Chinese patent 201110134050.5 proposes
A kind of fluidization continuous feeder, it is small material bin volume to be present in the device, can not realize long-time continuous-feeding, and right
Generally had certain limitations in the particle diameter of material, when material particular diameter is larger, will be unable to realize feed, therefore such a device is only applicable
It is fed in the small particle short time.Propelling type feeding device is coordinated using motor and leading screw, and silk is controlled by controlled motor rotating speed
Thick stick displacement, to realize precisely feed, but there is the problems such as coal dust extruding and relatively limited feed bin volume in this device, limit its length
Time Continuous is fed.For spiral rod type charging gear in the lab using at most, spiral rod type charging gear passes through motor driven
Screw rod is rotated, and material is pushed into screw rod end by thread pitch, and material knot encircles, blanking is unstable etc. easily occurs for the device
Shortcoming, and when bin-level changes, also result in the problem of blanking is uneven.
When carrying out combustion experiment in laboratory, often the mixed combustion characteristic of different fuel is studied, can also be studied sometimes
Influence of the additive for fuel combustion characteristics, way before this is by different fuel premix uniformly, then using single
The feed-type of material is fed, and still, premix fuel generally leaves certain allowance, therefore causes the remaining waste of fuel,
In addition also there is the shortcomings that can not adjusting fuel ratio in experimentation in real time in this method.
The content of the invention
In view of the above-mentioned problems, the present invention proposes a kind of micro continuous feeder of fuel combination.The device can be effective
Improve the problem of blanking existing for spiral charging gear is inaccurate, and can realize the accurate mixing of different proportion material to
Material.
The present invention adopts the following technical scheme that：
A kind of micro continuous feeder of fuel combination, including feeding system and Component Mixing System, feeding system include
One-level feed bin, rotating mechanism, two level feed bin, Venturi tube, piezoelectric type level sensor and PID controller；Component Mixing System
Including one-level mixing bunker and two level mixing bunker；Wherein,
Charging aperture of the discharging opening of one-level feed bin by pipeline communication to two level feed bin, rotating mechanism are arranged on the pipeline
Interior, the coal dust for promoting one-level feed bin to fall enters two level feed bin；The discharging opening of two level feed bin is communicated to the larynx of Venturi tube
Portion, and one end of the Venturi tube is air inlet, the other end is communicated to the charging aperture of one-level mixing bunker, piezoelectric type level sensor
It is arranged in above two level feed bin, for exporting level signals into carrying out bias adjustment in PID regulator, and passes through output speed
Signal controls the fltting speed of rotating mechanism；
The discharging opening of one-level mixing bunker is communicated to the charging aperture of two level mixing bunker.
Further improve of the invention is that rotating mechanism includes the discharging opening and two level feed bin for being arranged on one-level feed bin
Helical spring between charging aperture in pipeline, and be arranged on and be used for the stepper motor for driving helical spring outside the pipeline, and PID
Adjuster output speed signal controling stepping motor adjusts rotating speed, and then adjusts the inventory into two level feed bin to keep material position
It is constant.
Further improve of the invention is that feeding system also includes vibrating motor and one-level loosens airduct, vibrating motor
It is arranged on the outer wall of one-level feed bin, is offered in the side wall of one-level feed bin and loosen air port, one-level loosens airduct and is arranged on the pine
At dynamic air port, to ensure that coal dust smoothly exports feed bin.
Further improve of the invention is that feeding system also includes two level and loosens airduct, is opened in the side wall of two level feed bin
Provided with air port is loosened, two level loosens airduct and is arranged at the loosening air port, to ensure that coal dust smoothly exports feed bin.
Further improve of the invention is that feeding system is additionally included in two level feed bin and is provided with the regulating valve for running through conveying pipeline
Door.
Further improve of the invention is that the bottom of control valve is furnished with scale, for entering for controlling opening of valve
Rower is determined.
Further improve of the invention is that the other end of Venturi tube is communicated on the charging aperture pipeline of one-level mixing bunker
It is provided with ball valve.
Further improve of the invention is that Component Mixing System also includes the bluff body being arranged in two level mixing bunker, uses
In realizing material diversion.
Further improve of the invention is, the gaseous mixture that opening tilts upward is additionally provided with the side wall of two level mixing bunker
Pipe, the conjunction gas entrance of mixture pipe is below bluff body.
Further improve of the invention is that feeding system is provided with two sets.
The present invention has the advantage that：
The micro continuous feeder of fuel combination provided by the invention, including feeding system and Component Mixing System, feed
System includes two-stage feed bin, stepper motor, vibrating motor, Venturi tube, helical spring and control valve etc..Coal dust is in one-level
Fallen in feed bin, the rotating mechanism being made up of stepper motor and helical spring promotes coal dust to enter two level feed bin, and coal dust is loosening
The volume of high velocity, low pressure air-flow is inhaled in wind, gravity and Venturi tube enters conveying pipeline under collective effect, and controlling opening of valve is to control
Material discharge rate processed.To ensure that coal dust does not tie arch, one-level feed bin is equiped with vibrating motor and loosens air port, and two level feed bin is provided with
Air port is loosened, to ensure that coal dust smoothly exports feed bin.Conveying pipeline is designed to Venturi tube at two level bin outlet so that conveying
Distinguished and admirable speed increase, pressure reduce, and are advantageous to coal dust and enter in conveying pipeline.
The rotating speed of stepper motor and helical spring is controlled by feedback control system, and two level feed bin is equiped with piezoelectric type material position biography
Sensor, monitor level signals and pass to PID regulator, further adjust stepper motor rotating speed.In controlling opening of valve, material
When height and conveying air velocity are all constant, the inventory of output two level feed bin is in definite value in the unit interval, when two level feed bin material
When output speed is more than input rate, controlling level will decline, and now Material Sensor receives level signals and passes to PID
Adjuster, adjuster, which sends signal, makes stepper motor improve rotating speed, now the material input rate increase of two level feed bin, until material
Bit recovery is to setting value.
Each branch road material enters hybrid system afterwards, and hybrid system includes two-stage mixing bunker, and warehouse arranges that one-level is mixed up and down
Close for cylindrical shape above storehouse, two charging apertures and cylinder two side walls are tangent, form rotational flow field and realize strong mixing, lower section is
Material is sent into two level mixing bunker by turbination outlet.Two level mixing bunker is square cavity, built-in conical bluff body, to realize thing
Material shunting, gaseous mixture entrance is parallel with the flaring exit wall of bottom below bluff body, and the air inlet that liquidates realizes that material is exporting
The secondary mixing at place.
Further, using loosening wind material is continuously exported at a two level bin outlet, one-level feed bin volume is larger,
Further to avoid material knot from encircleing, vibrating motor is installed additional to ensure that material smoothly exports feed bin.
Further, accurate control two level feed bin height of materials is adjusted using PID so that two level bin outlet material output speed
Degree keeps constant, while also achieves the input of two level feed bin and the dynamic equilibrium of outputting material.
Further, each branch road feeding system includes two-stage feed bin, and one-level feed bin volume is larger, has material storage work(
Can, the coarse adjustment of feeding coal is realized, two level feed bin volume is smaller, certain in controlling level, controlling opening of valve and conveying air velocity
When, accurate feeding can be achieved.
Further, each feed branch road is equipped with ball valve before one-level mixing bunker is accessed, to realize that branch road feed is logical
The opening and closing in road, it is easy to the independent demarcation of branch road and the quantity control that puts into operation.
Further, there are two sets of parallel feeding systems in the device, and the mixing feed of material of different nature can be achieved, lead to
The controlling opening of valve of different branch is overregulated, controls the delivery rate of different branch respectively, so as to realize that different material blends
The accurate control of ratio.
In short, the present invention is by the way of two-stage feed hopper, feedback control and two-stage mixing bunker are combined, Ke Yishi
The accurate supply of existing single material and the uniform mixing of various materials, compared with existing dispenser, have advantages below：
1st, feed bin volume is big, and uninterrupted continuous-feeding for a long time can be achieved, avoid disassembly system packing belt in experimentation
The trouble come.
2nd, it is fed using two-stage feed bin, two level feed bin can improve the problem of screw feeder blanking is inaccurate, in regulating valve
Accurate feeding is realized under the collective effect of door, loosening wind and PID control material position.
3rd, using the effect of vibration of vibrating motor, powder granule can be avoided to tie arch in feed bin.
4th, different material can be arbitrarily matched as needed and carry out mixing feed, material can be adjusted in experimentation and matched somebody with somebody
Than avoiding material from premixing in advance and excessively causing to waste.
5th, using two-stage mixing bunker, material can be mixed twice, improves the mixing uniformity of material as far as possible.
6th, using driving stepper motor, stabilization of speed, speed adjustable range is big, can stable operation at the low rotational speed, ensure that to
The accuracy of material.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the micro continuous feeder of fuel combination proposed by the present invention.In figure：1 is one
Level feed bin, 2 be vibrating motor, and 3 be that one-level loosens airduct, and 4 be stepper motor, and 5 be helical spring, and 6 be adpting flange, and 7 be PID
Adjuster, 8 be two level feed bin, and 9 be that two level loosens airduct, and 10 be Venturi tube, and 11 be piezoelectric type level sensor, and 12 be ball
Valve, 13 be one-level mixing bunker, and 14 be control valve, and 15 be scale, and 16 be mixture pipe, and 17 be two level mixing bunker, and 18 be bluff body.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in figure 1, the micro continuous feeder of a kind of fuel combination provided by the invention, including by one-level feed bin 1, shake
Dynamic motor 2, one-level loosen airduct 3, stepper motor 4, helical spring 5, two level feed bin 8, two level loosen airduct 9, Venturi tube 10,
The feeding system that control valve 14, the piezoelectric type level sensor 11 of scale 15, PID controller 7 and ball valve 12 form；And by
The Component Mixing System that one-level mixing bunker 13, two level mixing bunker 17, mixture pipe 16 and bluff body 18 form.
One-level loosens airduct 3 and is divided into two layers along feed bin, and every layer circumferential uniform four along one-level feed bin 1；Stepper motor 4 is driving
Rotated in the presence of dynamic device and controller, output end connection helical spring 5, helical spring 5 and the output end of stepper motor 4 are welding
It is fixed, it is attached between a two level feed bin with adpting flange 6, facilitates disassembly, cleaning；Piezoelectric type level sensor 11 is placed in two
The level inwall of feed bin 8, two level, which loosens airduct 9 and one-level and loosens airduct 3, arranges identical, is divided into two layers, and every layer along the circumference of two level feed bin 8
Uniform four, the outlet of two level feed bin 8 connects with the throat of Venturi tube 10, and control valve 14 is with the junction of Venturi tube 10 using close
Envelope processing；Disconnected between Venturi tube 10 and one-level mixing bunker 13 with ball valve 12, realize the independence of branch road；Into one-level mixing bunker
13 pipeline and bulkhead are tangent, and for a two level mixing bunker using being welded and fixed, bluff body 18 is in triangular shape, is fixed on two level mixing bunker 17
Interior, the angle mixed between airduct 16 and the bulkhead of two level mixing bunker 17 is identical with the cone angle of the conical outlet of two level mixing bunker 17.
Specifically, the feeding system includes stepper motor 4 and helical spring 5 forms rotating mechanism, and it is used to push away
The coal dust that dynamic one-level feed bin 1 falls enters two level feed bin 8, is connected between the two level feed bin by flange 6, clear in order to dismount
Wash, and two-stage feed bin is equipped with and loosens air port, avoids material knot from encircleing；The two level feed bin 8 is provided with the regulation through conveying pipeline
Valve 14, can be with controlling opening of valve, so as to adjust feeding coal, control valve by the moving up and down for adjusting rod of relative set
14 bottoms are furnished with scale 15, to be demarcated for valve opening；The top of two level feed bin 8 is disposed with piezoelectric type material position biography
Sensor 11, output level signals, which enter in PID regulator 7, carries out bias adjustment, and output speed signal controling stepping motor 4 adjusts
Rotating speed, and then the inventory into two level feed bin 8 is adjusted to keep constant material level；Conveying pipeline designs at two level bin blanking mouth
Into Venturi tube 10, to realize that high flow rate, low pressure air blast volume inhale material；
The mixing bunker of the hybrid system is divided into two-stage, and two-stage mixing bunker is arranged up and down, and the top of one-level mixing bunker 13 is circle
Tubular, two charging apertures and cylinder two side walls are tangent, form rotational flow field and realize strong mixing, lower section exports for turbination
Material is sent into two level mixing bunker 17；Two level mixing bunker is square cavity, built-in conical bluff body 18, to realize material diversion,
Gaseous mixture entrance is parallel with the flaring exit wall of bottom below bluff body, and the air inlet that liquidates realizes material the two of exit
Secondary mixing.
The present invention controls controlling level by PID controller 7, adjusts the upper-lower position control valve aperture of control valve 14,
In controlling level, controlling opening of valve and the timing of conveying air velocity one, it is possible to achieve accurate feeding.
There are two sets of parallel feeding systems in the device, the mixing feed of heterogeneity material can be achieved, by adjusting not
With the delivery rate of the aperture of control valve 14 of branch road, respectively control different branch, so as to realize different material mixing proportion
Accurate control.
Each feed branch road is equipped with ball valve 12 before one-level mixing bunker 13 is accessed, to realize the branch road feeder channel
Open and close, be easy to the independent demarcation of branch road and the quantity control that puts into operation.
Each branch road feeding system includes two-stage feed bin, and the volume of one-level feed bin 1 is larger, has material store function, real
The coarse adjustment of existing feeding coal, the volume of two level feed bin 8 is smaller, in controlling level, the aperture of control valve 14 and conveying air velocity one regularly,
Accurate feeding can be achieved.To realize that the outlet of two level feed bin 8 blanking is uniform, airduct 9 is loosened equipped with two level in feed bin bottom, ensures thing
The continuous output feed bin of material.
Specific work process (by taking coal dust and semicoke as an example)：
Before starter, device each several part stable connection is first ensured.Test to before powder, device is demarcated first, only
The ball valve for opening independent branch road carries out demarcating to powder to branch roads system, and record is different to give corresponding scale label under powder speed, mark
It is required for purging system before and after fixed, to avoid salvage stores from impacting experimental calibration result.Will after the completion of demarcation
Control valve is adjusted to closed mode, adds coal dust and semicoke in branch road feed bin respectively, determines the mixed proportion of coal dust and semicoke, beat
Stepper motor and feedback control system are driven, adjuster is adjusted using PID, takes into account and accurately and quickly adjust, and is reduced during adjusting
Fluctuation, Vibration on Start-up motor is simultaneously passed through gas into system, control valve is slowly adjusted to corresponding scale, you can realize coal
Powder and semicoke different mixing proportion give powder, when screw(-type) feeder is not punctual to powder, two level bin-level can be caused to change, now
PID regulator will change screw(-type) feeder to powder speed, regulation material position to initial value, to realize precisely feed.To powder
During, each wind speed should be caused to keep constant, should also pay close attention to stepper motor rotation speed change, when stepper motor rotating speed exceedes necessarily
Stepper motor should be turned off during limit value, check whether one-level feed bin occurs knot arch and chute blockage phenomenon.After feed terminates, PID is closed
Adjuster and stepper motor can be achieved to stop feed, should now close each ball valve, reclaim independent material, avoid causing wave
Take.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The embodiment of the present invention is only limitted to this, for general technical staff of the technical field of the invention, is not taking off
On the premise of from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention by institute
Claims of submission determine scope of patent protection.
Claims (10)
1. a kind of micro continuous feeder of fuel combination, it is characterised in that including feeding system and Component Mixing System, feed
System include one-level feed bin (1), rotating mechanism, two level feed bin (8), Venturi tube (10), piezoelectric type level sensor (11) and
PID controller (7)；Component Mixing System includes one-level mixing bunker (13) and two level mixing bunker (17)；Wherein,
Charging aperture of the discharging opening of one-level feed bin (1) by pipeline communication to two level feed bin (8), rotating mechanism are arranged on the pipeline
Interior, the coal dust for promoting one-level feed bin (1) to fall enters two level feed bin (8)；The discharging opening of two level feed bin (8) is communicated to literary mound
In manage the throat of (10), and one end of the Venturi tube (10) is air inlet, and the other end is communicated to entering for one-level mixing bunker (13)
Material mouth, piezoelectric type level sensor (11) are arranged in above two level feed bin (8), enter PID regulator for exporting level signals
(7) bias adjustment is carried out in, and the fltting speed of rotating mechanism is controlled by output speed signal；
The discharging opening of one-level mixing bunker (13) is communicated to the charging aperture of two level mixing bunker (17).
2. the micro continuous feeder of a kind of fuel combination according to claim 1, it is characterised in that rotating mechanism includes
It is arranged on the helical spring (5) in pipeline, Yi Jishe between the discharging opening of one-level feed bin (1) and the charging aperture of two level feed bin (8)
Put and be used for the stepper motor (4) for driving helical spring (5) outside the pipeline, and PID regulator (7) output speed signal control step
Stepper motor (4) adjusts rotating speed, and then adjusts the inventory into two level feed bin (8) to keep constant material level.
3. the micro continuous feeder of a kind of fuel combination according to claim 1, it is characterised in that feeding system also wraps
Include vibrating motor (2) and one-level loosens airduct (3), vibrating motor (2) is arranged on the outer wall of one-level feed bin (1), one-level feed bin
(1) offered in side wall and loosen air port, one-level loosens airduct (3) and is arranged at the loosening air port, to ensure that coal dust is smoothly defeated
Discharging bin.
4. the micro continuous feeder of a kind of fuel combination according to claim 3, it is characterised in that feeding system also wraps
Include two level and loosen airduct (9), offered in the side wall of two level feed bin (8) and loosen air port, two level loosens airduct (9) and is arranged on the pine
At dynamic air port, to ensure that coal dust smoothly exports feed bin.
5. the micro continuous feeder of a kind of fuel combination according to claim 1, it is characterised in that feeding system also wraps
Include and be provided with the control valve (14) through conveying pipeline in two level feed bin (8).
A kind of 6. micro continuous feeder of fuel combination according to claim 5, it is characterised in that control valve (14)
Bottom be furnished with scale (15), for being demarcated for control valve (14) aperture.
A kind of 7. micro continuous feeder of fuel combination according to claim 1, it is characterised in that Venturi tube (10)
The other end be communicated on the charging aperture pipeline of one-level mixing bunker (13) and be provided with ball valve (12).
A kind of 8. micro continuous feeder of fuel combination according to claim 1, it is characterised in that Component Mixing System
Also include the bluff body (18) being arranged in two level mixing bunker (17), for realizing material diversion.
A kind of 9. micro continuous feeder of fuel combination according to claim 8, it is characterised in that two level mixing bunker
(17) mixture pipe (16) that opening tilts upward is additionally provided with side wall, the conjunction gas entrance of mixture pipe (16) is in bluff body
(18) lower section.
10. the micro continuous feeder of a kind of fuel combination according to claim 1, it is characterised in that feeding system is set
It is equipped with two sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710942295.8A CN107638819B (en) | 2017-10-11 | 2017-10-11 | Micro-continuous feeding device for mixed fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710942295.8A CN107638819B (en) | 2017-10-11 | 2017-10-11 | Micro-continuous feeding device for mixed fuel |
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| Publication Number | Publication Date |
|---|---|
| CN107638819A true CN107638819A (en) | 2018-01-30 |
| CN107638819B CN107638819B (en) | 2020-10-27 |
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ID=61113702
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710942295.8A Active CN107638819B (en) | 2017-10-11 | 2017-10-11 | Micro-continuous feeding device for mixed fuel |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109012322A (en) * | 2018-08-21 | 2018-12-18 | 王维春 | A kind of animal husbandry thimerosal device for formulating |
| CN109305564A (en) * | 2018-07-20 | 2019-02-05 | 北京林业大学 | A kind of continuous pneumatic conveying feed system of the pressure stabilizing-for biomass through pyrolysis |
| CN109847653A (en) * | 2019-01-21 | 2019-06-07 | 西安交通大学 | A kind of fuel combination pressurization continuous feeding system and method |
| CN110817480A (en) * | 2019-09-25 | 2020-02-21 | 西安交通大学 | Accurate feeding device suitable for long period operation test |
| CN112325308A (en) * | 2020-11-20 | 2021-02-05 | 浙江蓝太能源工程有限公司 | Stokehole fine feeding control method for melting device |
| CN113713709A (en) * | 2021-09-17 | 2021-11-30 | 西安交通大学 | Device for realizing continuous mixing and feeding of powdery and fibrous materials |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB406233A (en) * | 1932-10-14 | 1934-02-22 | Georg Ornstein | Apparatus for introducing gases or liquids into flowing gases or liquids |
| CN1053755A (en) * | 1990-02-02 | 1991-08-14 | 比勒股份公司 | The device of continuous mixing and homogenising |
| CN2618662Y (en) * | 2003-05-29 | 2004-06-02 | 中国农业大学 | Microcomponent coating machine for granular fodder |
| CN101575053A (en) * | 2009-06-10 | 2009-11-11 | 煤炭科学研究总院 | Pulse-free coal powder supply device |
-
2017
- 2017-10-11 CN CN201710942295.8A patent/CN107638819B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB406233A (en) * | 1932-10-14 | 1934-02-22 | Georg Ornstein | Apparatus for introducing gases or liquids into flowing gases or liquids |
| CN1053755A (en) * | 1990-02-02 | 1991-08-14 | 比勒股份公司 | The device of continuous mixing and homogenising |
| CN2618662Y (en) * | 2003-05-29 | 2004-06-02 | 中国农业大学 | Microcomponent coating machine for granular fodder |
| CN101575053A (en) * | 2009-06-10 | 2009-11-11 | 煤炭科学研究总院 | Pulse-free coal powder supply device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305564A (en) * | 2018-07-20 | 2019-02-05 | 北京林业大学 | A kind of continuous pneumatic conveying feed system of the pressure stabilizing-for biomass through pyrolysis |
| CN109012322A (en) * | 2018-08-21 | 2018-12-18 | 王维春 | A kind of animal husbandry thimerosal device for formulating |
| CN109847653A (en) * | 2019-01-21 | 2019-06-07 | 西安交通大学 | A kind of fuel combination pressurization continuous feeding system and method |
| CN110817480A (en) * | 2019-09-25 | 2020-02-21 | 西安交通大学 | Accurate feeding device suitable for long period operation test |
| CN112325308A (en) * | 2020-11-20 | 2021-02-05 | 浙江蓝太能源工程有限公司 | Stokehole fine feeding control method for melting device |
| CN113713709A (en) * | 2021-09-17 | 2021-11-30 | 西安交通大学 | Device for realizing continuous mixing and feeding of powdery and fibrous materials |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107638819B (en) | 2020-10-27 |
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