CN101712525A - Variable-frequency combustion system for conveying petroleum coke powder - Google Patents
Variable-frequency combustion system for conveying petroleum coke powder Download PDFInfo
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- CN101712525A CN101712525A CN200910258788A CN200910258788A CN101712525A CN 101712525 A CN101712525 A CN 101712525A CN 200910258788 A CN200910258788 A CN 200910258788A CN 200910258788 A CN200910258788 A CN 200910258788A CN 101712525 A CN101712525 A CN 101712525A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 239000002006 petroleum coke Substances 0.000 title claims abstract description 71
- 238000002485 combustion reaction Methods 0.000 title abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 89
- 238000003860 storage Methods 0.000 claims abstract description 39
- 239000011521 glass Substances 0.000 claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000010304 firing Methods 0.000 claims description 29
- 238000000889 atomisation Methods 0.000 claims description 12
- 230000004087 circulation Effects 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 5
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- 238000010168 coupling process Methods 0.000 claims description 4
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- 230000008018 melting Effects 0.000 abstract description 4
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- 239000000446 fuel Substances 0.000 description 20
- 239000000295 fuel oil Substances 0.000 description 16
- 239000003921 oil Substances 0.000 description 8
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- 230000006872 improvement Effects 0.000 description 6
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- 239000010881 fly ash Substances 0.000 description 1
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Abstract
The invention relates to a combustion system for conveying petroleum coke powder in a frequency conversion mode, which comprises a compressed air gas storage part, a coke powder storage bin, a frequency conversion conveying gas-powder mixer for mixing air sent by the gas storage part and coke powder in the coke powder storage bin into fluidized gas powder, at least one pair of burner groups distributed on two opposite sides of a glass melting furnace for oppositely burning and a conveyor for conveying the fluidized gas powder to one of the burner groups. The method is realized by mixing the coke powder generated in the processing process of petroleum with compressed air to form fluidized gas powder in a solid and gas state and then igniting and burning the fluidized gas powder.
Description
[technical field]
The present invention relates to a kind of firing system, referring in particular in the glass production field with the petroleum coke powder is the firing system of fuel.
[background technology]
Glass industry is a high energy consumption industry, and fuel cost accounts for 30～50% in the glass cost, and glass melter is the maximum equipment of energy consumption in the glass production line.Current; at the used fuel of glass art all is fuel heavy oil such as oil basically; we know that the energy of our earth is limited; along with expanding economy; the demand of the energy can be increasing; people are but grown to even greater heights to environmental protection consciousness on the other hand, and human general way is to wish to make a breakthrough aspect renewable energy source, and improves rate of energy.Oil is as the current most important fuel of the mankind, can produce various intermediate products in extractive process, if these products can be turned waste into wealth a kind of as the energy, this has this good.
And petroleum coke powder is the least significant end product in the petroleum refinery process, and the physical properties of existing oil has the thermal property of oil again, if a kind of utilization ratio that improves petroleum-based energy that petroleum coke powder can be acted as a fuel, this also is energy-conservation essential step.Present global refinery coke output is more than 7,000 ten thousand tons, along with international crude oil heaviness, inferiorization ratio increase, and the progress of crude oil deep processing, the output of refinery coke can constantly increase, and will reach 100,000,000 tons/year the coming years.China has entered the heavy chemical industry epoch, continuous increase along with energy demand, about 3.5 hundred million tons of the self-produced crude oil of imported crude oil and China, can calculate by output refinery coke 3～5% when pressing the crude oil refinement, China every year is with the refinery coke of more than 1,000 ten thousand tons of outputs, up to the present, petroleum coke powder still excludes the national energy sequence, and national energy consumption statistic aspect does not count energy consumption index yet.The applicant's purpose is exactly to develop a kind of firing system that is specifically designed to petroleum coke powder, to improve the utilization ratio of petroleum-based energy.
[summary of the invention]
The objective of the invention is to be to overcome the deficiencies in the prior art, provide a kind of rational in infrastructure, be the firing system of fuel with the petroleum coke powder, continuously, the incendiary Controllable Temperature is good, flame stabilization by the low-pressure air delivery safety for the petroleum coke powder in it.
In order to solve the technical problem of above-mentioned existence, the present invention adopts following technical proposals:
A kind of firing system of conveying petroleum coke powder by frequency conversion, its include press wind gas storage partly, storage coke powder storehouse, air and the coke powder in the storage coke powder storehouse that gas storage is partly sent here be mixed into the fluidized gas powder variable-frequency delivery pump for petroleum coke powders, at least one pair of is distributed in the relative both sides of glass melter to the sets of burners of burning and the forwarder that the fluidized gas powder is sent to a sets of burners wherein.
In the improvement project to the firing system of above-mentioned conveying petroleum coke powder by frequency conversion, described forwarder includes back powder pneumavalve and corresponding to sets of burners burning the pipe pneumavalve, described time powder pneumavalve and the passage that burns the pipe pneumavalve assumed diamond in shape.
In improvement project to the firing system of above-mentioned conveying petroleum coke powder by frequency conversion, described variable-frequency delivery pump for petroleum coke powders includes the pump box that is connected bottom, storage coke powder storehouse, mixing section, and the variable-frequency motor that connects successively, shaft coupling, plumer block and screw reamer, wherein screw reamer is inserted in the spiral shell that is located at pump box one side after passing pump box, being provided with one in the exit of spiral shell can be around the powder lid that is positioned at rotating shaft 38 swings above the shell, described mixing section includes the funnel of top seal and is located at the horizontal air channel of funnel bottom, described powder lid is arranged in this funnel top, is provided with respectively with pressing wind gas storage one fen gas port and the inlet of the forwarder inlet mouth and the fluidized gas powder that are connected partly to export on described air channel.
In improvement project to the firing system of above-mentioned conveying petroleum coke powder by frequency conversion, described sets of burners includes several burner unit, each burner unit includes the long strip shape burning gun barrel with inside and outside passage, be respectively equipped with and this inside and outside channel attached fluidized gas powder import and atomization gas import in this burning gun barrel one side, be respectively installed with the atomization gas nozzle and the rifle cap of taper in the inside and outside channel end that is positioned at burning gun barrel opposite side.
In improvement project, between the gas powder outlet of this variable-frequency delivery pump for petroleum coke powders and storage top, coke powder storehouse, be provided with one by looping back the partial circulating pipeline that the powder valve is controlled to the firing system of above-mentioned conveying petroleum coke powder by frequency conversion; When exporting toward forwarder, the gas powder of variable-frequency delivery pump for petroleum coke powders is equipped with a circulation powder feeding valve.
In the improvement project to the firing system of above-mentioned conveying petroleum coke powder by frequency conversion, described variable-frequency delivery pump for petroleum coke powders has two, is respectively main pump and stand-by pump.
In improvement project, be provided with and the storehouse float valve of pressing wind gas storage partly to communicate in the bottom in described storage coke powder storehouse to the firing system of above-mentioned conveying petroleum coke powder by frequency conversion.
Prior art is compared, the invention has the beneficial effects as follows: it is that oil is realized by ignition combustion after coke powder that product in the last reign of a dynasty-----refinery coke that produces after the extractive process is worn into and pressurized air are mixed into fluidized gas powder under solid, the gaseity, because the heat and the heavy oil of petroleum coke powder are suitable, product after the burning is basic identical, its incendiary Controllable Temperature is good, and flame stabilization can improve the utilization ratio of petroleum-based energy like this, be that State Council specifies the energy substitution product, have energy-saving advantages.
The present invention is described in further detail below in conjunction with accompanying drawing and embodiment:
[description of drawings]
Fig. 1 is a schematic diagram of the present invention;
Fig. 2 is a flow diagram of the present invention;
Fig. 3 is the process flow sheet of the embodiment of the invention;
Fig. 4 is the structural representation of the variable-frequency delivery pump for petroleum coke powders of the embodiment of the invention;
Fig. 5 is the structural representation of the burner unit of the embodiment of the invention.
[embodiment]
The present invention is a kind of firing system of conveying petroleum coke powder by frequency conversion, its include successively the pressure wind gas storage that connects partly 1, storage coke powder storehouse 2, pressurized air and the coke powder in the storage coke powder storehouse 2 that gas storage is partly sent here be mixed into the fluidized gas powder variable-frequency delivery pump for petroleum coke powders 3, at least one pair of is distributed in glass melter 4 relative both sides to the sets of burners 5 of burning and the forwarder 6 that the fluidized gas powder is sent to a sets of burners 5 wherein.Press wind gas storage partly 1, storage coke powder storehouse 2 is used for storing compressed air and petroleum coke powder respectively, when firing system will be worked, sequence control system makes the variable-frequency motor work of variable-frequency delivery pump for petroleum coke powders 3 and opens the valve that the coke powder storehouse is partly led in gas storage, so just coke powder and pressurized air can be mixed into the fluidized gas powder is lighted after forwarder 6 is sent to corresponding a certain sets of burners again, flame A heats to glass melter, thereby realizes the burning of coke powder.The present invention is that coke powder that oil is produced and pressurized air are mixed in the course of processing solid, realized by ignition combustion behind the fluidized gas powder under the gaseity, because the heat and the heavy oil of petroleum coke powder are suitable, product after the burning is basic identical, can improve oil-fired utilization ratio like this, have energy-saving advantages.
Float glass furnace with a 200t/d is an example, consumes 10,000 tons of meters of heavy oil per year, use petroleum coke powder as fuel after this firing system burning, 1500 yuan of conservation of fuels per ton at least, but line fuel saving in an every year expense is about 1,500 ten thousand yuan so.Substitute traditional energy with novel energy, can satisfy the glass competitive power fully, saved valuable petroleum resources for country again simultaneously.
Petroleum coke powder is that refinery coke reaches the pulverulent solids that certain particle is prepared from by the specific equipment extra-fine grinding, and composition is that C content is about 89%, and H, O account for 5%, and other element accounts for 5%, petroleum coke powder and industrial heavy oil main characteristic relatively:
| Fuel names | Calorific value (Kcal/kg) | Fugitive constituent | Ash content | ??C | ??H | ??0 |
| Petroleum coke powder | ??8500 | ??8-12％ | ??0.18 | ??89 | ??3.9 | ??1.1 |
| Industry heavy oil | ??9600 | ??99.5 | ??0.2 | ??86 | ??10 | ??0 |
As can be seen, petroleum coke powder and heavy oil C, H constituent content are suitable, and calorific value is approaching, ash content is low, and the combustion efficacy of thermal value and flame degree of cleaning and heavy oil is close, satisfies the glass furnace processing requirement, and be basic the same with heavy oil to the influence of glass quality.The hydrocarbon constituent content of petroleum coke powder and heavy oil is suitable, and calorific value is approaching, ash content is low, and the degree of cleaning of thermal value and flame are close with the heavy oil combustion effect, can satisfy the processing requirement of glass furnace, and is the same substantially with heavy oil to the influence of glass quality.Petroleum coke powder flame radiation ability is stronger than heavy oil, is applied in the thermal radiation that improves flame space in the glass furnace to a certain extent, and has the complicated heat exchanging process between flame-glass metal, flame-furnace wall, the furnace wall-glass metal that catches fire in the flame space.These heat exchanges comprise thermal radiation and two kinds of heat transfer types of thermal convection, and wherein 90% heat transmission is a radiative transfer, so petroleum coke powder actual volume of consumption per unit product amount is lacked than the consumption with calorific value calculation.
Through test, two kinds of fuel at the actual measurement unit consumption ratio of same glass furnace are:
Petroleum coke powder: heavy oil 1: 0.925
The unit consumption ratio that calculates two kinds of fuel by theory is:
Petroleum coke powder: heavy oil 1: 0.885
The present invention is to be fuel with the least significant end product petroleum coke powder in the petroleum refinery process, the physical properties of existing oil, the thermal property that oil is arranged again, it is with a kind of utilization ratio that improves petroleum-based energy that petroleum coke powder acts as a fuel, and this also is energy-conservation essential step.As can be seen, petroleum coke powder incendiary temperature is high and stable.
Forwarder 6 has the effect of ventilation, by the next sets of burners transportation flow gasification powder of giving wherein of computer control, it can also send the fluidized gas powder back to the effect in storage coke powder storehouse in the present embodiment, so it includes back powder pneumavalve 61 and corresponding to sets of burners 5 burning pipe pneumavalve 62, as shown in Figure 3, at this because a pair of sets of burners 5 to burning is arranged, so have two pairs totally 4 to burning pipe pneumavalve 62, return powder pneumavalve 61 and the passage that burns pipe pneumavalve 62 places is assumed diamond in shape, can make each valve can bypass and standby each other like this, the flowability of fluidized gas powder, and unaffected.
As shown in Figure 4, variable-frequency delivery pump for petroleum coke powders 3 includes the pump box 31 that is connected storage 2 bottoms, coke powder storehouse, mixing section 32, and the variable-frequency motor 33 that connects successively, shaft coupling 34, plumer block 35 and screw reamer 36, wherein screw reamer 36 is inserted in the spiral shell 37 that is located at pump box 31 1 sides, being provided with one in the exit 371 of spiral shell 37 can be around the powder lid 39 that is positioned at rotating shaft 38 swings above the shell, described mixing section 32 includes the funnel 321 of top seal and is located at the horizontal air channel 322 of funnel 321 bottoms, described powder lid 39 is arranged in these funnel 321 tops, on described air channel 322, be provided with respectively with press wind gas storage partly the inlet mouth 323 and the fluidized gas powder that are connected of the inlet of one fen gas port of 1 and forwarder 6 export 324, gas powder outlet 324 is acclivitous openings, and its angle of inclination is generally about 45 degree.Variable-frequency delivery pump for petroleum coke powders is covered by powder lid 39 when not working, the coke powder amount that screw reamer under the openings of sizes of gas powder outlet is driven by variable-frequency motor is carried is decided, this depends primarily on rotating speed of motor, can realize even, stable fluidized gas powder like this.Variable-frequency delivery pump for petroleum coke powders is when work, variable-frequency motor is adjusted rotating speed according to the control of system program, it drives screw reamer 36 by shaft coupling 34 and plumer block 35 and rotates, so the coke powder in the pump box 31 is transported to the exit 371 of spiral shell 37, coke powder is pushed powder lid 39 open back and is fallen along funnel 321, then blown down and form the fluidized gas powder that mixes and flow to forwarder 6 from gas powder outlet 324, realization coke powder and compressed-air actuated mixing process by the pressurized air of coming in from the inlet mouth 323 of interconnection 322.
In the present embodiment, sets of burners 5 has two pairs, every pair of sets of burners 5 includes several burner unit 50 (at Fig. 1, in 3, three burner unit are arranged), each burner unit 50 includes in the band, exterior passage way 501,502 long strip shape burning gun barrel 503, in these burning gun barrel 503 1 sides are respectively equipped with and are somebody's turn to do, exterior passage way 501,502 fluidized gas powder import 504 and the atomization gas imports 505 that connect, be positioned at burning gun barrel 503 opposite sides, exterior passage way 501,502 ends are respectively installed with the atomization gas nozzle 506 and the rifle cap 507 of taper, nozzle is corresponding on profile taper with the rifle cap, same group burner unit 50 is connected with divider 52 through burner control valve 51 separately, the automatization control burning of being more convenient for like this realizes that the temperature condition of glass melter 4 is the same with the firing system that with heavy oil is fuel.Atomization gas also has the adsorption that forms negative pressure and gives the provide protection of gun barrel refrigerative except combustion-supporting.Burner unit 50 is when work, inside and outside passage 501,502 inlet flow gasification powder and atomization gas from burning gun barrel 503, atomization air flow forms negative pressure (generally can produce the air-flow about 6 kilograms) through the back of producing by boasting from the space between atomization gas nozzle 506 and the rifle cap 507 behind the narrow exterior passage way 502, negative pressure adsorbs the back atomization gas with the fluidized gas powder in the interior passageway 501 and mixes the back by ignition combustion, thereby realizes giving melting furnaces 4 heating.The conical jet angle of burner can make fluidized gas combustion flame length longer, even the wide melting furnaces of 5-20 rice also can obtain the comparison uniform heating.
As preferred implementation, variable-frequency delivery pump for petroleum coke powders 3 has two (being called main pump and stand-by pump) at as shown in Figure 3 process flow sheet, and one of them is being safeguarded, just can enable another pump when maintaining one of them pump like this as standby.Between the gas powder of pump outlet 324 and storage 2 tops, coke powder storehouse, be provided with one by looping back the partial circulating pipeline that powder valve 100 is controlled, the fluidized gas powder returns in the storage coke powder storehouse by this pipe-line transportation when firing system is tested, and when not working or closing forwarder 6 in system, the systemic circulation powder retrieving pipe that variable-frequency delivery pump for petroleum coke powders 3 composite gas powder still can pass through back 61 controls of powder pneumavalve flows circularly, this mobile incessantly, not only can prevent the coke powder conglomeration, and it is stable that the fluidized gas powder is in all the time, uniform flow state, thus make the temperature of combustion of burner, heat keeps evenly.Be equipped with a circulation powder feeding valve 200 when forwarder is led in the outlet of the gas powder of variable-frequency delivery pump for petroleum coke powders, variable-frequency delivery pump for petroleum coke powders is opened looping back the powder valve, closing the circulation powder feeding valve of main pump again of main pump earlier when switching; Then open close stand-by pump behind the circulation powder feeding valve of stand-by pump again loop back the powder valve, whole handoff procedure is to be finished by the procedure auto-control of firing system.In addition, in order to make coke powder more smooth, enter into equably in the pump box of variable-frequency delivery pump for petroleum coke powders, be provided with and press the wind gas storage part 1 storehouse float valve 300 that communicates in the bottom in storage coke powder storehouse 2, control by the storehouse float valve enters in the powder-storage bin a part of pressurized air, coke powder is mixed with air, be called fluidisation one time at this, when entering into variable-frequency delivery pump for petroleum coke powders, the primary mixture after the fluidisation carries out the secondary fluidisation once more, more even through the primary mixture of delivering to sets of burners 5 after twice fluidisation, rationally, more help environment after so abundant burning.
Press wind gas storage partly 1 to mainly include air compressor (not drawing among the figure), blast dryer 11, gas storage buffer tank 12 and sub-cylinder 13, the pressurized air that compressor is sent here is sent to gas storage buffer tank 12 after handling via blast dryer 11 again, at last being diverted to firing system by sub-cylinder 13 again need use on the device of air, as can be seen from Figure 3, the inlet mouth of variable-frequency delivery pump for petroleum coke powders, storehouse float valve, and the fly-ash separator 400 etc. on storage 2 tops, coke powder storehouse all is connected, controls with stopping valve on the sub-cylinder.
As shown in Figure 3, the present invention has adopted polytype butterfly valve, ball valve, stopping valve, and intellectual measuring apparatus, critical magnetic valve or pneumavalve are controlled automatically by system, and whole system carries out system integration control by siemens DCS or PLC programmable logic controller.
In sum, the burning of petroleum coke powder and control: a, burning mixes heat absorption, volatilization burning, carbon dust through orientation atomizing, coke powder and burns, burns five stages and finish with high temperature air in glass furnace, and its combustibility, temperature of combustion are controlled, flame properties is controlled is petroleum coke powder key technologies for application on glass furnace.Variable-frequency delivery pump for petroleum coke powders of the present invention, burner special group and atomization technique have solved these difficult problems, prove that through experiment and successful case many times the petroleum coke powder rate of combustion reaches 99.8% and can satisfy the requirement of glass production to the length of flame and rigidity; B, temperature of combustion control: glass furnace is extremely important to be exactly temperature-stable in the stove, causing the unstable temperature reason mainly is fuel feed, fuel mass, this 4 point of the stability of fuel delivery and atomizing effect. for ensureing that Controllable Temperature is with stable in the stove, in the practice at the operating mode of kiln, to handling equipment and operating parameter, piping system is repeatedly improved, developed the variable handling equipment of glass kiln special use, fluidizer and burner special, through the textual criticism of the practicality on glass furnace, having formed a cover fuel can evenly carry continuously, the firing system of flame stabilization, ensure Controllable Temperature in petroleum coke powder firing system steady running and the stove, key equipment is carried out the using and the reserved system in the firing system design; C, flame properties control: the quality of flame directly has influence on the refining quality and the melting rate of glass, so in the glass furnace, it is far from being enough that petroleum coke powder only can burn, and requires flame that certain length, rigidity and brightness must be arranged.We are at different kilns, and the fineness of configuration petroleum coke powder and special burner, corresponding air distribution parameter are controlled flame, guarantee a series of measures such as length, raising rigidity.
Claims (7)
1. the firing system of a conveying petroleum coke powder by frequency conversion is characterized in that: include press wind gas storage partly (1), storage coke powder storehouse (2), with gas storage partly (1) air of sending here and the coke powder in the storage coke powder storehouse (2) be mixed into the fluidized gas powder variable-frequency delivery pump for petroleum coke powders (3), at least one pair of is distributed in the relative both sides of glass melter (4) to the sets of burners (5) of burning and the forwarder (6) that the fluidized gas powder is sent to a sets of burners (5) wherein.
2. the firing system of conveying petroleum coke powder by frequency conversion according to claim 1, it is characterized in that: described forwarder (6) includes back powder pneumavalve (61) and corresponding to sets of burners (5) burning pipe pneumavalve (62), described time powder pneumavalve (61) and the passage that burns pipe pneumavalve (62) assumed diamond in shape.
3. the firing system of conveying petroleum coke powder by frequency conversion according to claim 1 and 2, it is characterized in that: described variable-frequency delivery pump for petroleum coke powders (3) includes the pump box (31) that is connected bottom, storage coke powder storehouse (2), mixing section (32), and the variable-frequency motor (33) that connects successively, shaft coupling (34), plumer block (35) and screw reamer (36), wherein screw reamer (36) is inserted in the spiral shell (37) that is located at pump box (31) one sides after passing pump box (31), being provided with one in the exit (371) of spiral shell (37) can be around the powder lid (39) of rotating shaft (38) swing that is positioned at the shell top, described mixing section (32) includes the funnel (321) of top seal and is located at the horizontal air channel (322) of funnel (321) bottom, described powder lid (39) is arranged in this funnel (321) top, on described air channel (322), be provided with respectively with press wind gas storage partly the inlet mouth (323) and the fluidized gas powder that are connected of the inlet of one fen gas port of (1) and forwarder (6) export (324).
4. the firing system of conveying petroleum coke powder by frequency conversion according to claim 3, it is characterized in that: described sets of burners (5) includes several burner unit (50), each burner unit (50) includes in the band, exterior passage way (501), (502) long strip shape burning gun barrel (503), in these burning gun barrel (503) one sides are respectively equipped with and are somebody's turn to do, exterior passage way (501), (502) the fluidized gas powder import (504) and the atomization gas of Lian Jieing entered (505), is being positioned at burning gun barrel (503) opposite side, exterior passage way (501), (502) end is respectively installed with the atomization gas nozzle (506) and the rifle cap (507) of taper.
5. the firing system of conveying petroleum coke powder by frequency conversion according to claim 4 is characterized in that: the gas powder at this variable-frequency delivery pump for petroleum coke powders (3) goes out between (324) and the storage top, coke powder storehouse (2) to be provided with one by the partial circulating pipeline that loops back powder valve (100) control; When leading to forwarder, the gas powder outlet (324) of variable-frequency delivery pump for petroleum coke powders (3) is equipped with a circulation powder feeding valve (200).
6. the firing system of conveying petroleum coke powder by frequency conversion according to claim 5, it is characterized in that: described variable-frequency delivery pump for petroleum coke powders (3) has two, is respectively main pump and stand-by pump.
7. according to the firing system of claim 4,5 or 6 described conveying petroleum coke powder by frequency conversion, it is characterized in that: be provided with in the bottom in described storage coke powder storehouse (2) and the storehouse float valve (300) of pressing wind gas storage part (1) to communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910258788A CN101712525A (en) | 2009-12-13 | 2009-12-13 | Variable-frequency combustion system for conveying petroleum coke powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910258788A CN101712525A (en) | 2009-12-13 | 2009-12-13 | Variable-frequency combustion system for conveying petroleum coke powder |
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| CN101712525A true CN101712525A (en) | 2010-05-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108033668A (en) * | 2017-12-29 | 2018-05-15 | 扬州德云电气设备集团有限公司 | A kind of glass furnace petroleum coke powder combustion control system and its control method |
-
2009
- 2009-12-13 CN CN200910258788A patent/CN101712525A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108033668A (en) * | 2017-12-29 | 2018-05-15 | 扬州德云电气设备集团有限公司 | A kind of glass furnace petroleum coke powder combustion control system and its control method |
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