CN108211974A - A kind of accurate proportioning and metering air-transport system - Google Patents
A kind of accurate proportioning and metering air-transport system Download PDFInfo
- Publication number
- CN108211974A CN108211974A CN201810117389.6A CN201810117389A CN108211974A CN 108211974 A CN108211974 A CN 108211974A CN 201810117389 A CN201810117389 A CN 201810117389A CN 108211974 A CN108211974 A CN 108211974A
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- China
- Prior art keywords
- solenoid valve
- control unit
- transport system
- concentration detection
- sulfur dioxide
- Prior art date
- 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
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2117—Weight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/30—Controlling by gas-analysis apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/2201—Control or regulation characterised by the type of control technique used
- B01F35/2202—Controlling the mixing process by feed-back, i.e. a measured parameter of the mixture is measured, compared with the set-value and the feed values are corrected
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2218—Weight of at least one component to be mixed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention discloses a kind of accurate proportionings and metering air-transport system,Including stent,Sulfur dioxide concentration detection sensor and control unit,Portion and top cross-bar are hung respectively by weighing sensor in the bracket has hung blending bunker and two caching feed bins,The first solenoid valve is equipped at the top of the caching feed bin,The tremie pipe is equipped with second solenoid valve,In blending bunker end injector is connected with by being oriented to discharge nozzle,The guiding discharge nozzle is from top to bottom equipped with third solenoid valve and blade blanking device successively,The blade blanking device is connected with variable-frequency motor by retarder,The sulfur dioxide concentration detection sensor is located on boiler exit gas pipeline,And sulfur dioxide concentration detection sensor and control unit are electrically connected,And described control unit and the first solenoid valve,Second solenoid valve,Third solenoid valve and weighing sensor are electrically connected；It realizes proportion speed, is uniformly mixed, by the active control of reaction type, best captured sulfur result is realized in accurate measurement.
Description
Technical field
The present invention relates to transport system technical field, specially a kind of accurate proportioning and metering air-transport system.
Background technology
In recent years, using the captured sulfur result that certain material agent generation is sprayed in coal-burning boiler, high sulfur coal combustion can be realized
The environment protecting of low-sulfur discharge has been enter into engineer application implementation phase.The problem of current is that feeding system can't be mating, can
With the in-furnace calcium spraying system continued to use, technical goal is simple, material agent it is single, functional requirement is not high, can not realize active control and
Effec-tive Function.
Itself main drawback is that：Without expecting necessary accurate proportioning in agent use more, uniformly mixing and accurate measurement
Functional device, the active control that feedback control realizes material agent contribution can not be passed through according to process requirements, it is impossible to realize solid
Sulphur effect and the best design object of system operation economic benefit.
Invention content
In order to overcome the shortcomings of prior art, the present invention provides a kind of accurate proportioning and metering air-transport system,
It realizes material agent proportion speed, is uniformly mixed, accurate measurement, by the active control of reaction type, realize best material agent contribution
Controllably, reach best captured sulfur result and system operation economy, can effectively solve the problems, such as that background technology proposes.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of accurate proportioning is with metering air-transport system, the stent including the font of falling "ON", sulfur dioxide concentration detection
Sensor and control unit, portion and top cross-bar hang that have hung blending bunker and two slow by weighing sensor respectively in the bracket
Material stock storehouse, the caching feed bin top are equipped with the first solenoid valve, and the tremie pipe is equipped with second solenoid valve, at blending bunker end
End is connected with injector by being oriented to discharge nozzle, and the guiding discharge nozzle is from top to bottom equipped under third solenoid valve and blade successively
Glassware, the blade blanking device are connected with variable-frequency motor by retarder；
The sulfur dioxide concentration detection sensor is located on the outlet pipe of boiler, and sulfur dioxide concentration detection sensing
Device and control unit are electrically connected, and described control unit is made of PLC hosts and computer peripheral equipment, and described control unit with
First solenoid valve, second solenoid valve, third solenoid valve and weighing sensor are electrically connected, and described control unit receives sulfur dioxide
The transducing signal of concentration detection sensor and weighing sensor, and the first solenoid valve, the are controlled according to transducing signal analysis result
The break-make and aperture of two solenoid valves and third solenoid valve, the instruction works that the variable-frequency motor passes through control unit.
As a kind of preferred technical solution of the present invention, the fixed peace in both sides of the caching feed bin both sides and blending bunker
Equipped with triangle load-bearing ear block, the triangle load-bearing ear block is equipped with the screw lifting device promoted for feed bin small range, the title
Sensor is retransmitted to be located between triangle load-bearing ear block and the crossbeam of stent.
As a kind of preferred technical solution of the present invention, the screw lifting device includes being fixedly mounted on triangle load-bearing ear
The screw shell of block bottom and the smooth sleeve being fixedly mounted at the top of rack beam, in the screw shell peace sliding sleeve
Equipped with same root screw rod.
As a kind of preferred technical solution of the present invention, the cross section of the tremie pipe is rectangular section, and short side is gradual
Reduce, exit end face is in long and narrow rectangle, and two tremie pipe downlinks gradually transfer, and to when exporting in small-angle skew,
And the outlet of two tremie pipes is not in the same horizontal position.
As a kind of preferred technical solution of the present invention, pass through tremie pipe and blending bunker in the bottom of the caching feed bin
Flexible connection, is tightly connected between the blade blanking device and the injector by pipeline flexible.
As a kind of preferred technical solution of the present invention, the injector passes through pressure line and the wind for being located at stent outer
Machine connects, and the pressure line is connected with being oriented to the end of discharge nozzle.Compared with prior art, the beneficial effects of the invention are as follows：
The accurate proportioning of the mating more material agent of the present invention, can realize uniform mixing, can by the active control of reaction type
Accurate measurement controls the appropriate throwing amount of mixture, realizes best captured sulfur result and system operation economy.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is screw lifting schematic device of the present invention；
Fig. 3 is present system block diagram；
Figure label：1- stents；2- sulfur dioxide concentration detection sensors；3- control units；4- weighing sensors；5- is mixed
Close feed bin；6- caches feed bin；The first solenoid valves of 7-；8- tremie pipes；9- second solenoid valves；10- is oriented to discharge nozzle；11- injectors；
12- third solenoid valves；13- blade blanking devices；14- retarders；15- variable-frequency motors；16- triangle load-bearing ear blocks；17- pressure pipes
Road；18- wind turbines；19- screw lifting devices；20- screw shells；The smooth sleeves of 21-；22- screw rods.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1 to Figure 3, the present invention provides a kind of accurate proportioning and metering air-transport system, including falling "ON"
Stent 1, sulfur dioxide concentration detection sensor 2 and the control unit 3 of font, at 1 middle part of stent and top cross-bar by weighing
Sensor 4 hang respectively has hung blending bunker 5 and two caching feed bins 6, it is described caching feed bin 6 bottom by tremie pipe 8 with
Blending bunker 5 is flexibly connected.
It should be noted that caching 6 both sides of feed bin and the both sides of blending bunker 5 are installed with triangle load-bearing ear
Block 16, the triangle load-bearing ear block 16 are equipped with the screw lifting device (19) promoted for feed bin small range, the weighing and sensing
Device 4 is located between triangle load-bearing ear block 16 and the crossbeam of stent 1, and caching 6 He of feed bin can be measured in real time by weighing sensor 4
The material agent weight of blending bunker 5, and weighing and sensing signal is sent to control unit 3 in time, and then pass through control unit knot
The signal for closing sulfur dioxide concentration detection sensor 2 is handled it, the control of timely adjustment material agent contribution.
In addition, the screw lifting device 19 includes the screw shell 20 for being fixedly mounted on triangle load-bearing ear block bottom and consolidates
Dingan County is mounted in the smooth sleeve 21 of 1 cross rail top of stent, and same root spiral shell is equipped in the peaceful sliding sleeve 21 of screw shell 20
Bar 22 by turning screw rod 22, promotes feed bin, weighing sensor 4 is facilitated to be placed in or take out.
6 top of caching feed bin is equipped with the first solenoid valve 7, and the tremie pipe 8 is equipped with second solenoid valve 9, is mixing
5 end of feed bin is connected with injector 11 by being oriented to discharge nozzle 10, and the guiding discharge nozzle 10 is from top to bottom equipped with third successively
Solenoid valve 12 and blade blanking device 13 are sealed by pipeline flexible between the blade blanking device 13 and the injector 11 and connected
It connects, the aperture of second solenoid valve 9 is coordinated by control unit 3, and the lower discharge of two caching feed bins 6 is made to keep equal or a certain at any time
It is required that certainty ratio, the lower discharge for caching feed bin 6 is perceived and real-time by the time history of the sum of 4 output signal of weighing sensor
Display and record.
The blade blanking device 13 is connected with variable-frequency motor 15 by retarder 14, and wherein blade blanking device 13 is in discharging
In the process by the driving of variable-frequency motor 15, mixed effect is improved, and the mutual cooperation of retarder 14 and variable-frequency motor 15 can be with
Realize that blade blanking device rotating speed expects that agent contribution is controllable, the rotating speed of blade blanking device 13 is according to a certain in boiler exhaust gas component
A index amount such as SO2Signal returns feedback, and control is performed by variable-frequency motor 15 and retarder 14, reaches and saves materials and best results
Target.
In above-mentioned, the cross section of the tremie pipe 8 is rectangular section, and short side is gradually reduced, and exit end face is in long and narrow
Rectangle, two 8 downlinks of tremie pipe gradually transfer, and to when exporting in small-angle skew, and two tremie pipes 8
Outlet not in the same horizontal position, the caching feed bins 6 of two different material agent pass through the special of tremie pipe 8 in discharge process
Structure can be realized as curtain shape cross-mixing, make it more uniform.
Further, as the preferred of present embodiment, a kind of accurate proportioning according to claim 1 and metering gas
Power transport system, it is characterised in that：The injector 11 is connect by pressure line 17 with being located at the wind turbine 18 in 1 outside of stent,
The pressure line 17 is connected with being oriented to the end of discharge nozzle 10.
The sulfur dioxide concentration detection sensor 2 is located on the outlet pipe of boiler, and sulfur dioxide concentration detection passes
Sensor 2 and control unit 3 are electrically connected, and described control unit 3 is made of PLC hosts and computer peripheral equipment, and the control
Unit 3 is electrically connected with the first solenoid valve 7, second solenoid valve 9, third solenoid valve 12 and weighing sensor 4, described control unit
3 receive the transducing signal of sulfur dioxide concentration detection sensor 2 and weighing sensor 4, and according to transducing signal analysis result control
The break-make and aperture of the first solenoid valve 7, second solenoid valve 9 and third solenoid valve 12 are made, the variable-frequency motor 15 is single by controlling
The instruction works of member 3.
The specific work process of the present invention：
Step 1: closing second solenoid valve 9, the first solenoid valve 7 is opened, A material is delivered respectively to caching feed bin 6 and B expects,
Caching feed bin 6 closes the first solenoid valve 7 when reaching setting weight value such as 2000kg at full capacity；
Step 2: closing third solenoid valve 12, second solenoid valve 9 is opened, A material and B material mix in blending bunker 5, root
The A material weight signals and B material weight signals not provided according to 4 the output phase bonus point of weighing sensor, coordinate opening for second solenoid valve 9
Degree, coordinates A material and B expects blanking rate；
Step 3: close second solenoid valve 9 when A+B mixtures reach design upper design limit gravimetric value such as 100kg；
Step 4: opening third solenoid valve 12, system starts friction feeding process；Sulfur dioxide concentration in boiler export
Detection sensor 2 feeds back to control unit 3, and control variable-frequency motor 15 by signal is detected, the rotating speed of regulation blade blanking device 13,
The appropriate throwing amount of A+B mixtures is controlled, realizes best captured sulfur result；
Step 5: constantly declining in A+B material positions, such as 20kg when reaching lower limit design gravimetric value, second solenoid valve is opened
9, it is fed to blending bunker 5, and the opening times of second solenoid valve 9 enter counter；
Step 6: when caching 6 weight of feed bin arrival design lower limiting value, open the first solenoid valve 7 and thrown toward caching feed bin 6
Material starts new round cycle.
In conclusion the accurate proportioning of the mating more material agent of the present invention, can realize uniform mixing, pass through the active of reaction type
Control, can accurate measurement, control the appropriate throwing amount of mixture, realize best captured sulfur result.
It is obvious to a person skilled in the art that the present invention is not limited to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
Claims (6)
1. a kind of accurate proportioning and metering air-transport system, it is characterised in that：Stent (1), dioxy including the font of falling "ON"
Change sulphur concentration detection sensor (2) and control unit (3), in the middle part of stent (1) and top cross-bar passes through weighing sensor (4) point
Blending bunker (5) and two caching feed bins (6) Gua have not been hung, the first solenoid valve (7), institute are equipped at the top of the caching feed bin (6)
Tremie pipe (8) is stated equipped with second solenoid valve (9), injection is connected with by being oriented to discharge nozzle (10) in blending bunker (5) end
Device (11), the guiding discharge nozzle (10) is from top to bottom equipped with third solenoid valve (12) and blade blanking device (13) successively, described
Blade blanking device (13) is connected with variable-frequency motor (15) by retarder (14)；
The sulfur dioxide concentration detection sensor (2) is located on the outlet pipe of boiler, and sulfur dioxide concentration detection sensing
Device (2) and control unit (3) are electrically connected, and described control unit (3) is made of, and described PLC hosts and computer peripheral equipment
Control unit (3) electrically connects with the first solenoid valve (7), second solenoid valve (9), third solenoid valve (12) and weighing sensor (4)
It connects, described control unit (3) receives the transducing signal of sulfur dioxide concentration detection sensor (2) and weighing sensor (4), and root
The break-make of the first solenoid valve (7), second solenoid valve (9) and third solenoid valve (12) is controlled with opening according to transducing signal analysis result
Degree, the instruction works that the variable-frequency motor (15) passes through control unit (3).
2. a kind of accurate proportioning according to claim 1 and metering air-transport system, it is characterised in that：The caching material
Storehouse (6) both sides and the both sides of blending bunker (5) are installed with triangle load-bearing ear block (16), the triangle load-bearing ear block (16)
Equipped with the screw lifting device (19) promoted for feed bin small range, the weighing sensor (4) is located at triangle load-bearing ear block
(16) between the crossbeam of stent (1).
3. a kind of accurate proportioning according to claim 2 and metering air-transport system, it is characterised in that：The spiral carries
Device (19) is risen including being fixedly mounted on the screw shell (20) of triangle load-bearing ear block bottom and being fixedly mounted on stent (1) crossbeam
The smooth sleeve (21) at top, the peaceful sliding sleeve (21) of the screw shell (20) is interior to be equipped with same root screw rod (22).
4. a kind of accurate proportioning according to claim 1 and metering air-transport system, it is characterised in that：The tremie pipe
(8) cross section is rectangular section, and short side is gradually reduced, and exit end face is in long and narrow rectangle, under two tremie pipes (8)
It is in small-angle skew, and the outlet of two tremie pipes (8) is not in same level position when going and gradually transfer, and extremely exporting
It puts.
5. a kind of accurate proportioning according to claim 1 and metering air-transport system, it is characterised in that：In the caching
The bottom of feed bin (6) is flexibly connected by tremie pipe (8) and blending bunker (5), the blade blanking device (13) and the injection
Device is tightly connected between (11) by pipeline flexible.
6. a kind of accurate proportioning according to claim 1 and metering air-transport system, it is characterised in that：The injector
(11) it is connect by pressure line (17) with the wind turbine (18) being located on the outside of stent (1), the pressure line (17) is with being oriented to out
The end connection of expects pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810117389.6A CN108211974A (en) | 2018-02-06 | 2018-02-06 | A kind of accurate proportioning and metering air-transport system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810117389.6A CN108211974A (en) | 2018-02-06 | 2018-02-06 | A kind of accurate proportioning and metering air-transport system |
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| Publication Number | Publication Date |
|---|---|
| CN108211974A true CN108211974A (en) | 2018-06-29 |
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ID=62669784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810117389.6A Pending CN108211974A (en) | 2018-02-06 | 2018-02-06 | A kind of accurate proportioning and metering air-transport system |
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| Country | Link |
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| CN (1) | CN108211974A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871527A (en) * | 2018-07-20 | 2018-11-23 | 芜湖佩林郁松计量科技有限公司 | A kind of accurate charging measuring equipment of feed mixing |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871527A (en) * | 2018-07-20 | 2018-11-23 | 芜湖佩林郁松计量科技有限公司 | A kind of accurate charging measuring equipment of feed mixing |
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