CN102707762A - Heating power control method for waste high polymer material pyrolysis - Google Patents
Heating power control method for waste high polymer material pyrolysis Download PDFInfo
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Abstract
The invention relates to a heating power control method for waste high polymer material pyrolysis and relates to a heating power process control method used when waste high polymer materials in the environmental temperature are heated till fully pyrolyzed into gasiform products, in particular to a method for controlling the heating power in three stages, namely a material melting stage, a volatile matter precipitation stage and a carbon residue generation stage. The heating power control method provided by the invention is suitable for manufacturing technological processes utilizing pyrolysis of the waste high polymer materials to produce oil and gas, provides appropriate heat quantities required in the pyrolysis process of the waste high polymer materials in all stages through accurately controlling the heat source power in the whole pyrolysis process of the waste high polymer materials, and prevents coking caused by overtemperature heating and incomplete material pyrolysis. The original waste high polymer materials added into a pyrolysis device can be a single type of waste high polymer materials or mixtures of various waste high polymer materials. The applicable heating methods includes electrical heating, hot air heating, hot flue gas heating or heat transfer oil heating.
Description
Technical field
The present invention relates to a kind of solid waste and handle, be specifically related to the spent high molecular material and handle, relate in particular to a kind of spent high molecular material cracking heating power control method.
Background technology
Offal treatment manufacturer can adopt multiple industrial treatment mode that the spent high molecular material is handled, and comprises burning, landfill and cracking etc.Wherein, adopt the heating pyrolyze mode can obtain polytype oil gas product.For increasing economic efficiency, obtain more how required oil gas product, the cracking production technology need adopt the various procedures autocontrol method, comprises heating power control, cracking temperature control, pressure control and actuating mechanism controls etc.In process of production, the heating power control method need satisfy could be the faster material handling of cracking rule of spent high molecular material, obtains more how required product, and the saving heating energy source also prevents the overtemperature coking.For example: 1) when material is the mixing spent high molecular material of multiple the blending ratio PE, PP and the PVC component that are difficult to foresee, can't guarantee the fully cracking of the different component of cracking rule according to preset heating controlling schemes.If can adjust heating power in real time, then can guarantee the fully cracking of all components of material based on material cracking state.And heating power can help improving as required the productive rate of specific product according to the real-time cracking status adjustment of material and practice thrift heating energy source.2) when heating power meets the real-time cracking state of material, also can be according to the crack characteristic treatment by stages of different component.Temperature range can cracking discharge a large amount of CL at first endothermic peak place like PVC component in the spent high molecular material
-1Ion.When the heating power in this stage can be adjusted according to the real-time cracking state of PVC, can keep discharging CL
-1The cracking reaction temperature that ion is the strongest and when this finishes in stage, in time get into the heating power control strategy of next stage.
In order to guarantee the safe and effective operation of spent high molecular material cracking reaction process aborning, need carry out heating power control to the cracking reaction unit.In the prior art, the common method of power control is to carry out heating power control according to certain preset heating curve.Because the spent high molecular material component kind that cracking is handled is complicated; Blending ratio is difficult to prevision; After getting into cracker; According to preset heating curve, the various components that the residence time in preset temperature interval and preset heating rate can't guarantee unknown number in the actual material heating process can both be according to setting the abundant cracking of operating mode.The spent high molecular material that some component may occur is failed in the heat time heating time of setting cracking fully, and the spent high molecular material of other components has heated too fast and coking.For example:, need to design certain default control heating curve according to specific spent high molecular material component ratio 1) in spent high molecular material cracking production technology.Need keep this temperature levels 20 minutes when reaching 380 ℃ when temperature of charge.And the real composition ratio of material and specific component ratio then possibly make certain component fully react in 15 minutes to some extent during deviation, and 20 minutes preset overlong time.But be based on temperature and the control method of heating power is provided, can't adjust flexibly in real time.Can increase the time of production run like this and waste energy.2), when appearance temperature in the cracker heats when inhomogeneous, the spot heating section possibly occur and overheated coking occur, and that heating power is still kept is very big according to the method for preset temperature control curve controlled heating power.Then be easy to worsen cracking reaction situation if untimelyly take measures to reduce coking place heating power this moment, enlarges the coking area.
Summary of the invention
The object of the present invention is to provide a kind of spent high molecular material cracking heating power control method, the inventive method can be carried out corresponding power adjustments according to each the stage material surface topography parameter changing condition of spent high molecular material cracking process that obtains in real time.Heating power control method of the present invention will solve the technical matters that heating power control in the course control method for use that spent high molecular material cracking in the prior art handles can't be adjusted according to the actual cracking situation of material in real time.
This heating power control method of the present invention is to be applied in the control system of in the cracking heating arrangement, carrying out spent high molecular material cracking overall process.The controlling object of this Process Control System is the spent high molecular material, and controlled target is to realize material cracking process weak point consuming time, and the material cracking is abundant, the productive rate accord with expectation target of pyrolysis product etc.Wherein, heating power control is the necessary component that realizes the The whole control system target.
The spent high molecular material cracking heating power control method that the present invention proposes, concrete steps are following:
(1) on spent high molecular material cracker wall, arranges view window.The physical location of observation window can be set based on the deployment site and the cracker size of concrete cracker;
(2) mounting temperature measurement mechanism and carry out the temperature acquisition in the cracker carries out temperature acquisition with first frequency, and frequency is 1 time/second;
(3) adopt high-speed camera outside view window, to take the color recording of material surface morphology change process in the cracker;
(4) video file that obtains in the step (3) is gathered with the sampling rate of n frame/second, obtained the original sequence of material morphology change process;
(5) every in original sequence image is numbered P1Pk according to the time order and function order, k is the length of sequence, then image sequence is transferred to video memory;
(6) every image in the image sequence on the video memory is carried out Digital Image Processing, comprise that image-region is cut out, image effect strengthens and the image object feature identification;
(7) based on above-mentioned Digital Image Processing result; Carry out the total pixel value in coking zone, BR (Bubble Ratio, bubble rate) and DBR (Differential Bubble Ratio according to second frequency; Bubble rate time-derivative value) parameter value statistics; With time is horizontal ordinate, and parameter value is an ordinate, obtains 2 real-time tendency curves: the BR of spent high molecular material cracking process is change curve and the time dependent curve of DBR in time; Wherein, the implication of BR parameter is: in certain image, total elemental area of bubble accounts for the ratio of whole AP elemental areas, and the implication of DBR parameter is: the variable quantity of BR parameter value, the just time dependent derivative of BR parameter in the unit interval;
(8) BR that obtains according to step (7) is change curve and the time dependent curve of DBR in time; According to temperature T in the cracker less than the relation between the design temperature; Bubble rate BR value reach and setting value between relation; Relation between DBR and the setting value, carry out the heating power control of cracker:
(9) surpass preset alarm value if detect material coking area, then should trigger warning device immediately, and adopt the corresponding fail-safe control measure processing of reporting to the police accordingly; If do not surpass preset alarm value, then finish.
Among the present invention, the heating power control that relates in the step (8) is specially:
(a) in cracker temperature T less than design temperature T
Set1The time, according to 100% heating with full power of cracker.
(b) temperature T reaches T in cracker
Set1After the value, the adjustment heating power, making the programming rate of temperature T in the cracker is preset value DT
1DT
1Scope be 5 ℃/minute-35 ℃/minute.
(c) reach setting value BR when bubble rate BR value
1, and DBR≤DBR
1The time, adjustment heating power value, making the programming rate of temperature T in the cracker is preset value DT
2BR
1Scope be 9%-15%; The scope of DBR1 is 0.001%/second-3%/second; DT
2Scope be 3 ℃/minute-9 ℃/minute.
(d) reach setting value BR when bubble rate BR value
2, and DBR≤DBR
2The time, adjustment heating power value keeps the interior temperature T of current cracker constant.BR
2Scope be 1%-5%; DBR
2Scope be 0.001%/second-0.8%/second.
(e) as BR value>=BR
3, and DBR>=DBR
3The time, adjustment heating power value, making the programming rate of temperature T in the cracker is preset value DT
3BR
3Scope be 12%-30%; DBR
3Scope be 0.5%/second-2.0%/second.DT
3Scope be 5 ℃/minute-15 ℃/minute.
(f) as BR value>=BR
4, and DBR≤DBR
4The time, adjustment heating power value keeps the interior temperature T of current cracker constant.BR
4Scope be 16%-30%; DBR
4Scope be 0.001%/second-0.8%/second.
(g) as BR value≤BR
5, and DBR≤DBR
5The time, adjustment heating power value, making the programming rate of temperature T in the cracker is preset value DT
5BR
5Scope be 0%-5%; DBR
5Scope be 0.8%/second-2.0%/second, DT
5Scope be 15 ℃/minute-30 ℃/minute.
(h) as BR value>=BR
6, and DBR≤DBR
6The time, adjustment heating power value keeps the interior temperature T of current cracker constant.BR
6Scope be 16%-30%; DBR
6Scope be 0.8%/second-2.0%/second.
(i) as BR value≤BR
7, and DBR≤DBR
7The time, adjustment heating power value keeps temperature in the cracker>=preset temperature value T
Set2Value.BR
7Scope be 0%-2%; DBR
7Scope be 0.0001%/second-0.1%/second.T
Set2Scope be 450 ℃-490 ℃.
(j) as BR value≤BR
8, and DBR≤DBR
8The time, stop heating.BR
8Scope be 0%-0.2%; DBR
8Scope be 0%/second-0.001%/second.
Among the present invention, said view window can adopt circle, and its opening diameter is preferably opening diameter>=100mm, and observation window also can adopt ellipse to wait other shapes that is beneficial to processing, and is for example oval, square etc.; The position of view window and size should be able to guarantee can be observed this position pairing material surface topography situation; View window adopts pyroceram, and thickness is preferably≤12mm, and heat resisting temperature is preferably>=and 600 ℃; The type of high temp glass can adopt tempered glass, and surfaces externally and internally is bright and clean, and light transmission is good;
Among the present invention, when cracker adopted subregion or segmentation heating, the control strategy that relates in the step (8) was adjusted based on partitioned mode flexibly, only adopted a part of heating power control strategy wherein.
Among the present invention, when adopting 3 sections heating, environment temperature T
Atm(like 20 ℃ of temperature)-260 ℃ is first bringing-up section; 260 ℃-400 ℃ is second bringing-up section; 400 ℃-550 ℃ is the 3rd bringing-up section.
Among the present invention, the control strategy that first bringing-up section adopts is:
(1) the interior temperature T of cracker is less than design temperature T
Set1The time, according to 100% heating with full power of this device.
(2) temperature T reaches T in the cracker
Set1After the value, the adjustment heating power, making the programming rate of temperature T in the cracker is preset value DT
1DT
1Scope be 5 ℃/minute-35 ℃/minute;
(3) reach setting value BR when bubble rate BR value
1, and DBR≤DBR
1The time, adjustment heating power value, making the programming rate of temperature T in the cracker is preset value DT
2BR
1Scope be 9%-15%; The scope of DBR1 is 0.001%/second-3%/second; DT
2Scope be 3 ℃/minute-9 ℃/minute.
The control strategy that second bringing-up section adopts is:
When the BR value reaches setting value BR
2, and DBR≤DBR
2The time, adjustment heating power value keeps the interior temperature T of current cracker constant; BR
2Scope be 1%-5%; DBR
2Scope be 0.001%/second-0.8%/second.
As BR value>=BR
3, and DBR>=DBR
3The time, adjustment heating power value, the programming rate that makes vessel temp T is preset value DT
3BR
3Scope be 12%-30%; DBR
3Scope be 0.5%/second-2.0%/second.
The control strategy that the 3rd bringing-up section adopts is:
As BR value≤BR
5, and DBR≤DBR
5The time, adjustment heating power value, making the programming rate of temperature T in the cracker is preset value DT
5BR
5Scope be 0%-5%; DBR
5Scope be 0.8%/second-2.0%/second, DT
5Scope be 15 ℃/minute-30 ℃/minute.
As BR value>=BR
6, and DBR≤DBR
6The time, adjustment heating power value keeps the interior temperature T of current cracker constant.
As BR value≤BR
7, and DBR≤DBR
7The time, adjustment heating power value keeps temperature in the cracker>=preset temperature value T
Set2Value.BR
7Scope be 0%-2%; DBR
7Scope be 0.0001%/second-0.1%/second.T
Set2Scope be 450 ℃-490 ℃.
As BR value≤BR
8, and DBR≤DBR
8The time, stop heating.BR
8Scope be 0%-0.2%; DBR
8Scope be 0%/second-0.001%/second.
The present invention compares with prior art, and its effect is actively with tangible.The present invention is directed to spent high molecular material cracking system oil gas technological process, comprise that initial material begins to the overall process heating power autocontrol method of cracking process end from getting into cracker.Particularly material be multiple ratio be difficult to foresee mixing spent high molecular material the time, still can guarantee each fully cracking of component plastics.Simultaneously can also effectively prevent not occur in the cracker overtemperature coking.In addition, this method is compared with heating power control method commonly used, can carry out according to the setting stage by more effective control cracking process, reduces the consuming time of production run, practices thrift heat energy.
Description of drawings
Fig. 1 is the implementation step synoptic diagram among the present invention's " a kind of spent high molecular material cracking heating power control method ".
Fig. 2 is the real-time tendency curve adjustment step synoptic diagram among the present invention's " a kind of spent high molecular material cracking heating power control method ".
Embodiment
Further specify the present invention through embodiment below.
Embodiment 1:
As depicted in figs. 1 and 2, the present invention relates to a kind of spent high molecular material cracking heating power control method, may further comprise the steps;
In described the 1st step, view window is installed in position; Generally offer view window at the top of cracker, opening shape is circular, and the recommendation diameter is 150mm.
In said the 2nd step, satisfactory high temp glass is installed; Can select tempered glass for use, heatproof >=800 ℃, the recommendation glass diameter is 180mm, recommends thickness 10mm.
In said the 3rd step, outside view window, make a video recording; Video camera adopts infrared high-speed camera, and video camera CCD resolution adopts 720 lines, 24 frame/seconds of frame speed.
In said the 4th step, video file is gathered with the sampling rate of 10 frame/seconds, obtained the original sequence of material morphology change process.
In said the 5th step, every image is numbered according to the time order and function order, like time first picture number YS00000001 the earliest, second picture number YS00000002, it is YS0000000k that K opens picture number; Then this image sequence is transferred to special-purpose video memory, like certain specific image storer of special image process computer; Also can be transferred to specific Flame Image Process storage space, for example under certain specific image storage directory of computing machine.
In said the 6th step, the every two field picture in the image sequence is carried out Digital Image Processing.The Digital Image Processing process comprises that image-region distinguishes, and generally is that image to certain numbering carries out the zone and cuts out, and obtains the AP part; Then AP is carried out the effect enhancement process, as carry out image RBG equalization and handle, can the three-channel gray scale of RGB be distributed according to 255 rank equalization; Then this image object is carried out the characteristic feature identification and handle, concrete is or/and coking zone identification etc. to the identification of material object, bubble identification;
In said the 7th step, carry out the parameter value statistics, specifically comprise the value to bubble rate BR, the total pixel value of bubble rate time-derivative DBR value and coking zone carries out statistical computation.According to above-mentioned numerical imaging result, be horizontal ordinate with time t (second), obtain 2 real-time tendency curves with B parameter R (%) and parameter DBR (%/second).In the specific implementation, preferably adopt 1 time/second frequency detecting bubble rate B parameter R value and bubble rate time-derivative parameter DBR value.This frequency values can carry out accommodation according to the computing power of the automatic control system in the computing machine, as adjusts to 10 times/second.
In said the 8th step, carry out heating power according to control strategy flow process shown in Figure 2 and regulate, each bar strategy is specially.
Concrete, in step 1.1, temperature T is less than certain preset temperature of fusion T in cracker
Set1When (as 138 ℃), heat, make the interior temperature T of container reach temperature T as early as possible according to heating source 100% total power
Set1Value.
In the step 1.2, temperature T reaches T in the cracker
Set1After the value, can adopt general PID mode to adjust heating power, the programming rate that makes vessel temp T is preset value DT
1, as 10 ℃/minute.
In the step 1.3, when the BR value reaches setting value BR
1(as 12%), and DBR≤DBR
1When (like 2%/second), adjustment heating power value, the programming rate that makes vessel temp T is preset value DT2, as 6 ℃/minute.
In the step 1.4, when the BR value reaches setting value BR
2(as 3%), and DBR≤DBR
2When (like 0.5%/second), adjustment heating power value keeps current vessel temp T (as 216 ℃) constant.
In the step 1.5, as BR value>=BR
3(as 16%), and DBR>=DBR
3When (like 1%/second), adjustment heating power value, the programming rate that makes vessel temp T is preset value DT
3, as 12 ℃/minute.
In the step 1.6, as BR value>=BR
4(as 20%), and DBR≤DBR
4When (like 0.5%/second), adjustment heating power value keeps current vessel temp T (as 330 ℃) constant.
In the step 1.7, as BR value≤BR
5(as 3%), and DBR≤DBR
5When (like 1.2%/second), adjustment heating power value, the programming rate that makes vessel temp T is preset value DT
5, as 18 ℃/minute.
In the step 1.8, as BR value>=BR
6(as 22%), and DBR≤DBR
6When (like 2%/second), adjustment heating power value keeps current vessel temp T (as 510 ℃) constant.
In the step 1.9, as BR value≤BR
7(as 2%), and DBR≤DBR
7When (like 0.1%/second), adjustment heating power value keeps vessel temp>=preset temperature value T
Set2(as 480 ℃) value.Reaction is basic to be finished.
In the step 1.10, as BR value≤BR
8(as 0.1%), and DBR≤DBR
8When (like 0.01%/second), stop heating.
In the described step 9, detect according to the Digital Image Processing result whether material coking area surpasses early warning value in the cracker.Then should carry out actuation of an alarm immediately if surpass early warning value,, and keep watch on information on the screen like the field by using sound and light alarm.The fail-safe control measure can be the heating that suspends the coking zone.
Can adopt the part heating power control strategy among the 1.1-1.10 according to the arrangement form of cracker flexibly; As adopt segmentation when heating, can adopt environment temperature T
Atm-260 ℃ is first bringing-up section; 260 ℃-400 ℃ is second bringing-up section; 400 ℃-550 ℃ is the 3rd bringing-up section.Possibly can adopt the control strategy of 1.1-1.3 during practical implementation in first bringing-up section; Adopt the control strategy of 1.4-1.5 in second bringing-up section; Adopt the control strategy of 1.6-1.9 in the 3rd bringing-up section.Can carry out the part adjustment to the concrete parameter of above-mentioned control strategy according to different targets such as the kind of required product and productive rates.
Claims (6)
1. spent high molecular material cracking heating power control method is characterized in that concrete steps are following:
(1) on spent high molecular material cracker wall, arranges view window; The physical location of view window can be set according to the deployment site and the cracker size of concrete cracker;
(2) mounting temperature measurement mechanism and carry out the temperature acquisition in the cracker carries out temperature acquisition with first frequency, and frequency is 1 time/second;
(3) adopt high-speed camera outside view window, to take the color recording of material surface morphology change process in the cracker;
(4) video file that obtains in the step (3) is gathered with the sampling rate of n frame/second, obtained the original sequence of material morphology change process;
(5) every in original sequence image is numbered P1Pk according to the time order and function order, k is the length of sequence, then image sequence is transferred to video memory;
(6) every image in the image sequence on the video memory is carried out Digital Image Processing, comprise that image-region is cut out, image effect strengthens and the image object feature identification;
(7) based on above-mentioned Digital Image Processing result; Carry out the total pixel value in coking zone according to second frequency; Bubble rate BR and bubble rate time-derivative value DBR parameter value statistics; With time is horizontal ordinate, and parameter value is an ordinate, obtains 2 real-time tendency curves: the BR of spent high molecular material cracking process is change curve and the time dependent curve of DBR in time;
(8) BR that obtains according to step (7) is change curve and the time dependent curve of DBR in time; According to temperature T in the cracker less than the relation between the design temperature; Bubble rate BR value reach and setting value between relation; Relation between DBR and the setting value, carry out the heating power control of cracker:
(9) surpass preset alarm value if detect material coking area, then should trigger warning device immediately, and adopt the corresponding fail-safe control measure processing of reporting to the police accordingly; If do not surpass preset alarm value, then finish.
2. method according to claim 1 is characterized in that the heating power control that relates in the step (8) is specially:
(a) in cracker temperature T less than design temperature T
Set1The time, according to 100% heating with full power of cracker;
(b) temperature T reaches T in cracker
Set1After the value, the adjustment heating power, making the programming rate of temperature T in the cracker is preset value DT
1DT
1Scope be 5 ℃/minute-35 ℃/minute;
(c) reach setting value BR when bubble rate BR value
1, and DBR≤DBR
1The time, adjustment heating power value, making the programming rate of temperature T in the cracker is preset value DT
2BR
1Scope be 9%-15%; DBR
1Scope be 0.001%/second-3%/second; DT
2Scope be 3 ℃/minute-9 ℃/minute;
(d) reach setting value BR when bubble rate BR value
2, and DBR≤DBR
2The time, adjustment heating power value keeps the interior temperature T of current cracker constant; BR
2Scope be 1%-5%; DBR
2Scope be 0.001%/second-0.8%/second;
(e) as BR value>=BR
3, and DBR>=DBR
3The time, adjustment heating power value, making the programming rate of temperature T in the cracker is preset value DT
3BR
3Scope be 12%-30%; DBR
3Scope be 0.5%/second-2.0%/second; DT
3Scope be 5 ℃/minute-15 ℃/minute;
(f) as BR value>=BR
4, and DBR≤DBR
4The time, adjustment heating power value keeps the interior temperature T of current cracker constant; BR
4Scope be 16%-30%; DBR
4Scope be 0.001%/second-0.8%/second;
(g) as BR value≤BR
5, and DBR≤DBR
5The time, adjustment heating power value, making the programming rate of temperature T in the cracker is preset value DT
5BR
5Scope be 0%-5%; DBR
5Scope be 0.8%/second-2.0%/second, DT
5Scope be 15 ℃/minute-30 ℃/minute;
(h) as BR value>=BR
6, and DBR≤DBR
6The time, adjustment heating power value keeps the interior temperature T of current cracker constant; BR
6Scope be 16%-30%; DBR
6Scope be 0.8%/second-2.0%/second;
(i) as BR value≤BR
7, and DBR≤DBR
7The time, adjustment heating power value keeps temperature in the cracker>=preset temperature value T
Set2Value; BR
7Scope be 0%-2%; DBR
7Scope be 0.0001%/second-0.1%/second; T
Set2Scope be 450 ℃-490 ℃
(j) as BR value≤BR
8, and DBR≤DBR
8The time, stop heating; BR
8Scope be 0%-0.2%; DBR
8Scope be 0%/second-0.001%/second.
3. method according to claim 1, it is characterized in that said view window adopt circular, oval or square in any; View window adopts pyroceram, and thickness is≤12mm that heat resisting temperature is>=600 ℃; High temp glass adopts tempered glass.
4. method according to claim 1 is characterized in that the control strategy that relates in the step (8) is adjusted according to partitioned mode flexibly when cracker adopts subregion or segmentation heating, only adopts a part of heating power control strategy wherein.
5. method according to claim 4 is characterized in that when adopting 3 sections heating environment temperature T
Atm20 ℃-260 ℃ is first bringing-up section; 260 ℃-400 ℃ is second bringing-up section; 400 ℃-550 ℃ is the 3rd bringing-up section.
6. method according to claim 5 is characterized in that:
The control strategy that first bringing-up section adopts is:
(1) the interior temperature T of cracker is less than design temperature T
Set1The time, according to 100% heating with full power of this device;
(2) temperature T reaches T in the cracker
Set1After the value, the adjustment heating power, making the programming rate of temperature T in the cracker is preset value DT
1DT
1Scope be 5 ℃/minute-35 ℃/minute;
(3) reach setting value BR when bubble rate BR value
1, and DBR≤DBR
1The time, adjustment heating power value, making the programming rate of temperature T in the cracker is preset value DT
2BR
1Scope be 9%-15%; The scope of DBR1 is 0.001%/second-3%/second; DT
2Scope be 3 ℃/minute-9 ℃/minute;
The control strategy that second bringing-up section adopts is:
(1) reaches setting value BR when the BR value
2, and DBR≤DBR
2The time, adjustment heating power value keeps the interior temperature T of current cracker constant; BR
2Scope be 1%-5%; DBR
2Scope be 0.001%/second-0.8%/second;
(2) as BR value>=BR
3, and DBR>=DBR
3The time, adjustment heating power value, the programming rate that makes vessel temp T is preset value DT
3BR
3Scope be 12%-30%; DBR
3Scope be 0.5%/second-2.0%/second;
The control strategy that the 3rd bringing-up section adopts is:
(1) as BR value≤BR
5, and DBR≤DBR
5The time, adjustment heating power value, making the programming rate of temperature T in the cracker is preset value DT
5BR
5Scope be 0%-5%; DBR
5Scope be 0.8%/second-2.0%/second, DT
5Scope be 15 ℃/minute-30 ℃/minute;
(2) as BR value>=BR
6, and DBR≤DBR
6The time, adjustment heating power value keeps the interior temperature T of current cracker constant;
(3) as BR value≤BR
7, and DBR≤DBR
7The time, adjustment heating power value keeps temperature in the cracker>=preset temperature value T
Set2Value; BR
7Scope be 0%-2%; DBR
7Scope be 0.0001%/second-0.1%/second; T
Set2Scope be 450 ℃-490 ℃
(4) as BR value≤BR
8, and DBR≤DBR
8The time, stop heating; BR
8Scope be 0%-0.2%; DBR
8Scope be 0%/second-0.001%/second.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210179210.2A CN102707762B (en) | 2012-06-04 | 2012-06-04 | Heating power control method for waste high polymer material pyrolysis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210179210.2A CN102707762B (en) | 2012-06-04 | 2012-06-04 | Heating power control method for waste high polymer material pyrolysis |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112410051A (en) * | 2020-11-05 | 2021-02-26 | 福建三宝钢铁有限公司 | Coke oven external baking process |
| CN113344909A (en) * | 2021-07-01 | 2021-09-03 | 中国石油大学(北京) | Method and device for identifying and displaying coking of flame-permeable high-temperature filter of thermal power boiler |
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| CN101070262A (en) * | 2007-06-06 | 2007-11-14 | 江苏克胜集团股份有限公司 | Dicyclopentadiene continuous cracking novel process |
| CN101709224A (en) * | 2009-11-06 | 2010-05-19 | 中国科学技术大学 | Biomass spiral pyrolysis device and pyrolysis process |
| CN201587926U (en) * | 2009-12-11 | 2010-09-22 | 深圳市兖能投资管理有限公司 | Vertical continuous microwave heating low-temperature cracking furnace for waste |
| CN102042601A (en) * | 2009-10-20 | 2011-05-04 | 杨显志 | Small efficient medicinal rubbish pyrolysis incinerator |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070262A (en) * | 2007-06-06 | 2007-11-14 | 江苏克胜集团股份有限公司 | Dicyclopentadiene continuous cracking novel process |
| CN102042601A (en) * | 2009-10-20 | 2011-05-04 | 杨显志 | Small efficient medicinal rubbish pyrolysis incinerator |
| CN101709224A (en) * | 2009-11-06 | 2010-05-19 | 中国科学技术大学 | Biomass spiral pyrolysis device and pyrolysis process |
| CN201587926U (en) * | 2009-12-11 | 2010-09-22 | 深圳市兖能投资管理有限公司 | Vertical continuous microwave heating low-temperature cracking furnace for waste |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112410051A (en) * | 2020-11-05 | 2021-02-26 | 福建三宝钢铁有限公司 | Coke oven external baking process |
| CN113344909A (en) * | 2021-07-01 | 2021-09-03 | 中国石油大学(北京) | Method and device for identifying and displaying coking of flame-permeable high-temperature filter of thermal power boiler |
| CN113344909B (en) * | 2021-07-01 | 2023-12-08 | 中国石油大学(北京) | Method and device for identifying and displaying flame penetration height Wen Lvjing coking of thermal power boiler |
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| CN102707762B (en) | 2014-04-02 |
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