CN103760060B - The online carbon testing device of electrical heating method flying dust of two-dimensional model - Google Patents
The online carbon testing device of electrical heating method flying dust of two-dimensional model Download PDFInfo
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- CN103760060B CN103760060B CN201410012488.XA CN201410012488A CN103760060B CN 103760060 B CN103760060 B CN 103760060B CN 201410012488 A CN201410012488 A CN 201410012488A CN 103760060 B CN103760060 B CN 103760060B
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Abstract
The present invention is the online carbon testing device of electrical heating calcination loss method flying dust of two-dimensional model, be the structural design of integration, comprise isokinetic sampling's equipment, two-dimensional transmission mechanism, ceramic electric heating stove, temperature controller, gas source pipe valve cap, power module cartridge and host computer system etc. and attach together in a rack.Advantage: 1) compared with traditional three dimensional pattern, decrease the platform mechanism of a circumferential movement, also reduce the mechanical hook-up of a set of interlock, working position reduces to 3 points from 12 points, the total distance of transmission decreases more than 70%, avoid common mechanical bite and transmission offside and control the mechanical faults such as malfunctioning.The design of drawer type, more convenient Installation and Debugging and maintenance and manually receive ash, be close to non-maintaining; 2) ceramic electric heating stove calcination heating is adopted, the on-the-spot rugged surroundings of long-term adaptation, long service life; 3) design of integration, both simplified dust removing system, optimized sampling system again, and then optimized complete machine structure, improve measuring accuracy and reliability.
Description
Technical field
What the present invention relates to is a kind of online carbon testing device of electrical heating method flying dust of two-dimensional model, adapt to the carbon testing device of various coal blending, adopt isokinetic sampling and sample the sampling mode combined from odd test, utilize the method calcination that ceramic electric heating stove heats, and by being close to non-maintaining two-dimentional machinery gear train, complete the online carbon testing device of electromagnetism calcination method flying dust of two-dimensional model of the sampling to flying dust, calcination, weighing measurement continuously.
Background technology
In recent years, the calcination loss method flying dust carbon determination researched and developed by continent, former Nanjing Zhong electricity company put into operation in power plant, and calcination method carbon determination can adapt to the change of coal, and measuring accuracy is higher.After Continental AG stops production, technology is lost to the producer that forms a complete production network completely, and the product of the Company that the personnel walked out from Continental AG successively establish is the product purchasing supporting producer mostly.Although improve to some extent to original system design, but mainly to the improvement of materials application aspect, on the whole, new breakthrough is not had at technical elements, especially in physical construction, still the physical construction of " three dimensional pattern " has been followed, its transmission needs the circumferential transmission of rotating disk moving up and down to assist a ruler in governing a country again and crucible could be delivered to corresponding measurement point with the displacement movement of interlock in conjunction with hoistable platform, also need an independently ash discharge pipeline, its measure in mechanical drive complicated and reliability is low, failure rate is high, almost be difficult to ensure to measure failure-free operation 1-2 month at the scene, we can say, calcination carbon testing device online at present, there is no a measuring equipment that can deserve to be called in practical application meaning.
Summary of the invention
What the present invention proposed is the online carbon testing device of a kind of two dimensional surface formula electrical heating method flying dust, and its object is intended to for above-mentioned application present situation, gearing structure is improved to simple and direct reliable " two-dimensional model "; Adopt the mode of ceramic electric heating stove heating; The increase of transformation stopple coupon from taking out system, and devises the receipts ash module port integrated with ash discharge, eliminates independently ash discharge pipeline, utilizes on-the-spot compressed air for instrument, and the method combined with suction ash by blowing ash realizes quick ash discharge.Reliable mechanical transmission and rapid combustion technology and high-accuracy weighing technology, in conjunction with computer disposal, really accomplish detection real-time online.
Technical solution of the present invention: the online carbon testing device of method flying dust is burnt in the electrical heating of two-dimensional model, and its structure is the measurement rack of integrated design; Described measurement rack attaches together in a cabinet box by the mechanical transmission mechanism of isokinetic sampling's equipment, two-dimensional model, electronic balance, ceramic electric heating stove, temperature controller, gas source pipe valve member box, industrial control host and power module cartridge; Measure rack to be arranged on vertical gas pass or horizontal flue on the measurement point selected.
Advantage of the present invention: 1) three dimensional pattern of traditional physical construction " circumferential movement "+" moving up and down " is simplified to two-dimensional model, namely the mechanical drive only in a plane, relative to reference position, such plane transmission, be made up of totally 3 working positions 2 points moved up and down and 1 point that moves to right, compared with the transmission of three dimensional pattern, reduce by a motion platform, also reduce the gearing of a set of interlock, working position reduces to 3 points from 12 points, the total distance of transmission reduces more than 70%, avoid common mechanical bite and transmission offside and control the faults such as malfunctioning, can accomplish that measurement and equipment use are close to non-maintaining reliably, 2) to the improvement of stopple coupon, the basis of isokinetic sampling add from extracting sample, when isokinetic sampling reaches the time (can arrange 5-10 minute) pre-set the time, and ash quantity is lower than when measuring requirement (can arrange 1-5 gram), and system will start from take out system automatically.Utilize on-the-spot compressed air for instrument after reduced pressure treatment, send induction tunnel afterbody from the system of taking out, in order to accelerate the flue gas flow rate in sampling equipment in right amount, reach the effect accelerating to receive ash, avoid insecure measurement of ashless few ash, accelerate sense cycle, wide accommodation; 3) transformed sampling line, successful design receives the ash module ports integrated with ash discharge, and ash discharge pipeline used the grey pipeline of existing receipts, does not need configuration independence and the dust removing system of complexity, further simplify system architecture.Dust removing system directly utilizes on-the-spot compressed air for instrument, synchronously pressurized air sent into induction tunnel afterbody gas source interface, the quick ash discharge of the mode taking pressure-vaccum to combine when opening ash releasing tube and blowing ash.
Accompanying drawing explanation
Accompanying drawing 1 is the structured flowchart of the online carbon testing device of electrical heating method flying dust of two-dimensional model.
Accompanying drawing 2 is mechanical transmission mechanism schematic diagram of two-dimensional model.
Accompanying drawing 3 is slip blade positional structure schematic diagram.
Accompanying drawing 4 is structural representations of isokinetic sampling's equipment.
Accompanying drawing 5 is the scheme of installations measuring rack.
In accompanying drawing 1 is vertical driving motor, 2 is horizontal drive motors, 3 is vertical-transmission screw mandrels, 4 is horizontal conveyor screw mandrels, 5 is vertical-transmission guide rod (guide rod has 4), 5-1 is horizontal conveyor guide rod (guide rod has 2), 6 is crucibles, 7 is slip blades, 8 is motion platforms, 8-1 is extendable platform, 9 is variation push rods, 10 is electronic balances, 11 is drawer rails, 12 is ceramic electric heating stoves, 12-1 is temperature controller, 13 is receive ash discharge base, 14 is stationary barriers, 15 is the U-shaped top boards of drawer, 16 is drawer-bottom boards, 17 is vacuum noz(zle)s, 18 is stopple coupons, 19 cyclone dust collectors, 20 is gas outlets, 21 is adjustable jet tubes, 22 is induction tunnels, 23 is rectangular flanges, 24 is walling of flues, 25 is heat-insulation layers, 26 is outer casings, 27 is rain-proof shelters.
Embodiment
Contrast accompanying drawing 1, the online carbon testing device of electrical heating method flying dust of two-dimensional model, its structure comprises isokinetic sampling's equipment, two-dimensional transmission mechanism, temperature controller, ceramic electric heating stove, electronic balance, display, gas source pipe valve cap, power module cartridge and industrial control host.Wherein the first signal input part of isokinetic sampling's equipment connects with the output terminal of the A solenoid valve in gas source pipe valve cap, and the secondary signal input end of isokinetic sampling's equipment connects with the output terminal of the reduction valve in gas source pipe valve cap; The input end of reduction valve connects with the signal output part of B solenoid valve, and the input end of B solenoid valve and the input end of A solenoid valve introduce pressurized air; The control end of A solenoid valve and B solenoid valve connects with the first signal output part of industrial control host and secondary signal output terminal respectively; 3rd, the 4th, the 5th signal output part of industrial control host is connected with vertical driving motor, horizontal drive motor, the control end that changes push rod respectively; 6th signal input part of industrial control host is connected with the signal output part of electronic balance; The output terminal of the 7th signal of industrial control host connects with the signal input part of display; 8th, the 9th signal input part of industrial control host respectively with boiler start/ stop, throw that oily signal output part is corresponding to connect;
Tenth signal output part of industrial control host and the signal input part communication of DCS, complete the functions such as corresponding setting, display (comprising alarm indication), storage, printing.
The work of electric furnace is independently, and heating-up temperature gives temperature controller by thermocouple induction, sets heating-up temperature (can select setting 700 DEG C-850 DEG C) by temperature controller 12-1, realizes thermostatic control heating.
Gas source pipe valve cap introduces on-the-spot compressed air for instrument, has two way outlets, one tunnel supply if desired certainly take out grey use, another road after filtration under diminished pressure for ash discharge.
Contrast accompanying drawing 2,3, the mechanical transmission mechanism of two-dimensional model is contained in be measured in rack, the design of this gear train is in the case of a drawer structure, top board and the base plate of drawer are all " U " shapes, and drawer top board 15, drawer-bottom board 16 are inserted into the bottom and scales/electronic balance weighing pipe upper end of receiving ash discharge base 13 respectively; Drawer box is fixed on drawer rail 11; Vertical driving motor 1 and vertical-transmission screw mandrel 3 connect, and vertical-transmission screw mandrel 3 connects with motion platform 8, and vertical-transmission guide rod 5 has 4, and its two ends are separately fixed on the U-shaped top board 15 of drawer, drawer-bottom board 16; Horizontal drive motor 2 is connected with horizontal conveyor screw mandrel 4 one end and is fixed on motion platform 8, the other end of horizontal conveyor silk screw mandrel 4 is fixed on extendable platform 8-1, be that bolt is connected between extendable platform with motion platform, horizontal conveyor screw mandrel 4 is connected with slip blade 7; Slip blade 7 is connected with tangential movement guide rod 5-1, and tangential movement guide rod 5-1 has 2, is fixed on motion platform and extendable platform and leads; Crucible 6 is placed in the circular hole at slip blade center; Variation push rod 9 is fixed on the organization soleplate below drawer, and is positioned at immediately below electric furnace, when slip holder pull be shifted to the right to below electric furnace time, can guarantee that crucible can push in electric furnace by variation push rod.
During work, vertical-transmission screw mandrel 3 brought into motion platform 8 moves up and down, and then drive slip blade 7 to corresponding surveying work point, crucible 6 is placed in the circular hole at slip blade center, the up drive crucible 6 of motion platform is combined closely with receipts ash discharge base 13, receive ash or ash discharge operation to complete, the descending pipe of weighing allowing crucible 6 drop on electronic balance 10 completely completes operation of weighing, then turns back to initial, set position; Horizontal conveyor screw mandrel 4 drives slip blade 7 to do the motion of horizontal direction on the moving platform, and the below of electric furnace 12 delivered to by crucible by it, then crucible is headed into heating in electric furnace 12, to complete calcination operation by variation push rod 9.
In slip blade, devise 4 cylindrical holes, elastic pressuring spring being installed, having made, when receiving ash discharge point working position, can produce the enough snap-in forces of crucible, the seal request meeting the crucible when receiving ash discharge and receive between ash discharge base, in addition, receiving ash discharge base also has corresponding stage clip to design, and can guarantee that crucible is after harvesting ash, the suction of flue negative pressure can be overcome, fall back on slip blade.
Vertical-transmission guide rod 5 for fixed guide has 4, and two ends are separately fixed on drawer top board and drawer-bottom board, adopts flange to be connected with motion platform without oily lining and leads.Horizontal conveyor guide rod 5-1 has 2, is fixed on motion platform 8 and 8-1, and employing flange is pulled to be connected without oily lining and slip holder and led.
The gear train of two-dimensional model, without complicated parts, stable transmission and not bite, control simple, dependable performance, can be competent at site environment requirement, accomplishes to be close to non-maintaining.Its key element is connected effective between slip blade with motion platform, corresponding vertical, horizontal conveyor screw mandrel is driven respectively by 2 motors, complete the vertical movement of platform and the tangential movement of slip blade, the transmission of such two-dimensional model, can accomplish to carry out vertical and tangential movement simultaneously, but application is simple in the present system, and when tangential movement, motion platform will be in the stationary state of setting.Measuring process only has 3 working points, relative to the position of initial set, and the ultimate range < 25cm of motion platform horizontal conveyor, the ultimate range < 8cm of vertical-transmission, the distance 16cm of push rod vertical-transmission.Simple and direct integral structure reliability is high.
Contrast accompanying drawing 4, the structure of isokinetic sampling's equipment, comprise vacuum noz(zle) 17, stopple coupon 18, cyclone dust collector 19, gas outlet 20, adjustable pipe 21, induction tunnel 22, rectangular flange 23, receive ash discharge base 13, stationary barrier 14, wherein cyclone dust collector 19 one end is connected by gas outlet 20 one end with adjustable pipe 21, the other end of adjustable pipe 21 connects with induction tunnel 22, the other end of cyclone dust collector 19 connects with receipts ash discharge base 13, valve 17 is contained on one end of stopple coupon 18, the other end of stopple coupon 18 connects with cyclone dust collector 19, sampling equipment is connected with rectangular flange one end by stationary barrier 14, the other end and the walling of flue of rectangular flange are welded and fixed, this is fixing is also to measuring the fixing of rack.
Source of the gas port is devised unlike (1) gas outlet increase with conventional constant velocity's sampling equipment, for connecting pressurized air, provide the source of the gas from taking out system, (2) are the designs of receiving ash discharge base, can meet and receive grey requirement, on-the-spot pressurized air after filtration under diminished pressure can be provided when ash discharge again.
Flue gas due to heat flows fast and defines negative pressure with extraneous air, and the negative pressure of induction tunnel afterbody will much larger than the negative pressure of stopple coupon 18 afterbody, the afterbody of above-mentioned two pipes regulates air-flow to dock distance by adjustable pipe 21, flue gas is made to create by vacuum noz(zle) 17, through stopple coupon to induction tunnel afterbody, flow back into the flue gas stream in flue by induction tunnel.When flue gas flows through cyclone dust collector 19, cause rotational flow to rise, flying dust drops at the impact several times with cyclone dust collector 19 inwall and receives ash discharge base 13 again.
Unique system of certainly taking out and dust removing system, when got ash sample during time pre-set (3-10 minute) lower than the ash quantity preset (1-5 gram) time, system will start oneself automatically take out system.Utilize on-the-spot compressed air for instrument to send induction tunnel 22 afterbody, in order to accelerate sample rate from the system of taking out.Ash discharge utilizes the on-the-spot compressed air for instrument after filtration under diminished pressure, and synchronously pressurized air is sent into induction tunnel afterbody gas source interface when ash discharge, and the quick ash discharge of the mode taking pressure-vaccum to combine, further simplify system architecture.
Contrast accompanying drawing 5, measure rack to be arranged on vertical gas pass or horizontal flue on the measurement point selected; Measure in rack and comprise induction tunnel 22, rectangular flange 23, walling of flue 24, heat-insulation layer 25, outer casing 26, rain-proof shelter 27, wherein induction tunnel 22 one end is connected with cyclone dust collector 19 by adjustable pipe, gas outlet, the other end of induction tunnel 22 is connected with walling of flue 24 by rectangular flange 23, walling of flue 24 is provided with heat-insulation layer 25, heat-insulation layer 25 being outer casings 26, rain-proof shelter 27 is on outer casing 26; Rain-proof shelter 27 one end and walling of flue 24 are welded and fixed; One end and the walling of flue of mounting bracket are welded and fixed, the other end fixation measuring rack of mounting bracket, and electronic balance 10 is connected with the rack dividing plate below drawer by after four rubber isolator dampings, and have corresponding counterweight to regulate damping effect.Stationary barrier that the is described and connection of rectangular flange 23, its upper end is used for fixing sampling equipment, and lower end is used for being connected and fixed drawer outrigger.
In addition, the installation site of other parts of appliance is, gas source pipe valve member box is arranged on outside rack, temperature controller is arranged on above electric furnace, power module cartridge is fixed on measures rack lower left, touch-screen colour display screen is arranged on the door inwall of rack, and industrial computer is arranged on the lower left measuring rack, is arranged in juxtaposition with power module cartridge.
The control signal of industrial control host has the start stop signal of 2 drive motor and variation push rod in the on-off model of 2 solenoid valves in gas source pipe clack box, gear train.The radiator fan of rack is independent control, and temperature controller is also independent control, and power pack is the transit ports of power supply and signal cable.
Described industrial control host adopts Taiwan to grind the D2500 microcomputer of China's production.
During complete machine work, 1) introduce the female pipe source of the gas of source of the gas, through gas source pipe clack box, send 2 road sources of the gas to sampling equipment.2) power supply general supply is introduced, for industrial computer, colour display screen, electric furnace, temperature controller, exhaust fan, drive motor and variation push rod.3) introducing boiler start/ stop signal and boiler throw oily signal, for Control protection sampling equipment; 4) in real time display measurement data comprise high-carbon and report to the police and device failure alert communication DCS system.
Workflow
1) empty crucible is weighed;
2) ash sample in collecting flue is in crucible;
3) detect ash quantity heating, drying again high temperature sintering weigh;
4) calculate carbon containing value at the scene switch board show and be transported to DCS;
5) ash discharge is in flue;
6) enter and measure next time.
As unburned carbon in flue dust > 15%, system sends high-carbon in time and reports to the police, and now trend curve is the horizontal line of 15%, but still has real-time carbon content data record in data store.Fault alarm has stifled ash to report to the police.
Practical function
Comprising 1) real time value and curve show; 2) mean values and excellent figure show; 3) history carbon content curve is recollected; 4) with DCS system communication function; 5) carbon content off-line data is browsed; 6) there is the function manually staying ash; 7) high-carbon is reported to the police and fault alarm.
Performance parameter
1) measurement range: 0 ~ 30%(carbon content)
2) measuring error: during ± 0.3%-0.4%(carbon content≤8%)
During ± 0.4%-0.6%(8% < carbon content≤15%)
During ± 0.6%-1.0%(15% < carbon content)
3) sense cycle: 8-12 minute (fixed depending on grey flow)
4) signal exports:
Analog quantity---4 ~ 20m carbon content signal of-2 tunnel isolation
Switching value----2 tunnel warning dry contact signals (high-carbon is reported to the police and fault alarm)
Digital quantity----digital signal is to DCS system (RS485)
5) signal input:
Switching value----accept boiler to throw oil and start stop signal
6) data store > 12 months
7) working power 220VAC, peak power 2000W
This device leading technology is mainly: instead of the transmission under traditional three dimensional pattern by the mechanical drive under two-dimensional model, and the design of two-dimension moving platform is the key element simplifying gear train, belongs to pioneering at home.Its transmission is simple and direct, controls simple and reliable, completely avoid common and frequently mechanical bite, transmission out-of-limit, control the mechanical faults such as malfunctioning, reliably can work in rugged surroundings for a long time, accomplish to be close to non-maintaining.In addition, original to the Curve guide impeller receiving ash discharge pipeline, make to receive grey pipeline and orderly the coordinating of ash discharge pipeline energy, further simplify physical construction.It is applied in and domesticly belongs to technological precedence.
Also do not adopt the equipment of " calcination loss method " realization to the online carbon determination of flying dust at present abroad, and the calcination carbon testing device of domestic use is all the gear train adopting electric company designs " three dimensional pattern " in former continent, from practical effect, operation cannot avoid mechanism's bite, transmission out-of-limit, control the frequent faults such as malfunctioning, be even difficult to accomplish failure-free operation 1 month.Therefore, the gear train of two-dimensional model of our invention, to calcination loss method on-line measurement unburned carbon in flue dust, has very important practical value, and it allows traditional calcination carbon testing device rise to on-line measurement device truly, can accomplish to be close to non-maintaining.Thering is provided reliable carbon content data online, is the important evidence that fuel-burning power plant Optimizing Combustion is saved energy and reduce the cost, and its generally application will bring very huge safety economy benefit and corresponding social benefit.
Claims (7)
1. the online carbon testing device of electrical heating calcination method flying dust of two-dimensional model, is characterized in that the measurement rack of integrated design; Described measurement rack attaches together in a cabinet box by the mechanical transmission mechanism of isokinetic sampling's equipment, two-dimensional model, electronic balance, ceramic electric heating stove, temperature controller, industrial control host and power module cartridge;
Wherein the first signal input part of isokinetic sampling's equipment connects with the output terminal of the A solenoid valve in gas source pipe valve cap, and the secondary signal input end of isokinetic sampling's equipment connects with the output terminal of the reduction valve in gas source pipe valve cap; The input end of reduction valve connects with the signal output part of B solenoid valve, and the input end of B solenoid valve and the input end of A solenoid valve introduce pressurized air; The control end of A solenoid valve and B solenoid valve connects with the first signal output part of industrial control host and secondary signal output terminal respectively; 3rd, the 4th, the 5th signal output part of industrial control host is connected with vertical driving motor, horizontal drive motor, the control end that changes push rod respectively; 6th signal input part of industrial control host is connected with the signal output part of electronic balance; The output terminal of the 7th signal of industrial control host connects with the signal input part of display; 8th, the 9th signal input part of industrial control host respectively with boiler start/ stop, throw that oily signal output part is corresponding to connect; Tenth signal output part of industrial control host and the signal input part communication of DCS, complete corresponding setting, display, storage, printing function;
Measure rack to be arranged on vertical gas pass or horizontal flue on the measurement point selected;
The mechanical transmission mechanism of described two-dimensional model, design is contained in the case of a drawer structure, top board and the base plate of drawer are all " U " shapes, and the U-shaped top board of drawer, drawer-bottom board are inserted into bottom and the scales/electronic balance weighing pipe upper end of the receipts ash discharge base in isokinetic sampling's equipment respectively; Drawer casing is fixed on drawer rail; Vertical driving motor and vertical-transmission screw mandrel connect, and vertical-transmission screw mandrel connects with motion platform, and vertical-transmission screw mandrel, vertical-transmission guide rod have 4, and the two ends of vertical-transmission guide rod are separately fixed on the U-shaped top board of drawer, drawer-bottom board; Horizontal drive motor is connected with one end of horizontal conveyor screw mandrel and fixes on the moving platform, and the other end of horizontal conveyor screw mandrel is fixed on extendable platform, and horizontal conveyor screw mandrel is connected with slip blade, and crucible is placed in the circular hole at slip blade center; Slip blade motion is led by horizontal conveyor guide rod, and horizontal conveyor guide rod has 2, is fixed on motion platform and extendable platform; Variation push rod is fixed on the organization soleplate below drawer, and is positioned at immediately below electric furnace, when slip holder pull be shifted to the right to below electric furnace time, can guarantee that crucible can be pushed into middle part in electric furnace by variation push rod;
During work, vertical-transmission screw mandrel brought into motion platform moves up and down, and then drive slip blade to corresponding surveying work point, crucible is placed in the circular hole at slip blade center, the up drive crucible of motion platform is combined closely with receipts ash discharge base, receive ash or ash discharge operation to complete, the descending pipe of weighing allowing crucible drop on electronic balance completely completes operation of weighing, and turns back to initial, set position; Horizontal conveyor screw mandrel drives slip blade to do the motion of horizontal direction on the moving platform, and the below of electric furnace delivered to by crucible by it, then to be headed in electric furnace by crucible by variation push rod and heats, to complete calcination operation.
2. the online carbon testing device of electrical heating calcination method flying dust of two-dimensional model according to claim 1, in slip blade in the mechanical transmission mechanism of the two-dimensional model described in its feature, devise 4 cylindrical holes, elastic pressuring spring has been installed, make when receiving ash discharge point working position, can produce the enough snap-in forces of crucible, the seal request meeting the crucible when receiving ash discharge and receive between ash discharge base, in addition, receiving ash discharge base also has corresponding stage clip to design, can guarantee that crucible is after harvesting ash, can overcome the suction of flue negative pressure, fall back on slip blade.
3. the online carbon testing device of electrical heating calcination method flying dust of two-dimensional model according to claim 1, the structure of the isokinetic sampling's equipment described in its feature, comprise vacuum noz(zle), stopple coupon, cyclone dust collector, gas outlet, adjustable pipe, induction tunnel, rectangular flange, receive ash discharge base, stationary barrier, wherein cyclone dust collector one end is connected with one end of adjustable pipe by gas outlet, the other end of adjustable pipe connects with induction tunnel, the other end of cyclone dust collector connects with receipts ash discharge base, valve is contained on one end of stopple coupon, the other end of stopple coupon connects with cyclone dust collector, sampling equipment is connected with rectangular flange one end by stationary barrier, the other end and the walling of flue of rectangular flange are welded and fixed, when flue gas flows through cyclone dust collector, cause rotational flow to rise, flying dust drops at the impact several times with cyclone dust collector inwall and receives ash discharge base again.
4. the online carbon testing device of electrical heating calcination method flying dust of two-dimensional model according to claim 3, stopple coupon described in its feature adds from extracting sample on the basis of isokinetic sampling, from extracting the startup of sample by software control, after isokinetic sampling reaches regulation setup times the time, when the flying dust received requires lower than specifying measurement, to automatically start from extracting sample, from extraction sample be utilize on-the-spot compressed air for instrument after reduced pressure treatment, send induction tunnel afterbody, in order to accelerate the flue gas flow rate in sampling equipment, reach the effect accelerating to receive ash, avoid insecure measurement during ashless few ash, start after extracting sample, if ash quantity does not still reach and receives grey requirement in 15 clocks, system receives the abnormal failure alarm signal communication DCS system of ash by providing, prompting operations staff process in time.
5. the online carbon testing device of electrical heating calcination method flying dust of two-dimensional model according to claim 3, induction tunnel one end described in its feature is connected with cyclone dust collector by adjustable pipe, gas outlet, the other end of induction tunnel is connected with walling of flue by rectangular flange, walling of flue is provided with heat-insulation layer, heat-insulation layer is outer casing, rain-proof shelter is on outer casing; Rain-proof shelter one end and walling of flue are welded and fixed; Walling of flue is welded and fixed one end of mounting bracket, the other end fixation measuring rack of mounting bracket.
6. the online carbon testing device of electrical heating calcination method flying dust of two-dimensional model according to claim 1, the electronic balance described in its feature is connected with the rack dividing plate below drawer by after four rubber isolator dampings, and has corresponding counterweight to regulate damping effect.
7. the online carbon testing device of electrical heating calcination method flying dust of two-dimensional model according to claim 1, the ultimate range < 25cm of the motion platform horizontal conveyor described in its feature, the ultimate range < 8cm of vertical-transmission, the distance 16cm of push rod vertical-transmission.
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