CN102633122A - Pneumatic conveying and blast furnace injecting device for coke oven dust-removing ash and using method thereof - Google Patents
Pneumatic conveying and blast furnace injecting device for coke oven dust-removing ash and using method thereof Download PDFInfo
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- CN102633122A CN102633122A CN2012100929235A CN201210092923A CN102633122A CN 102633122 A CN102633122 A CN 102633122A CN 2012100929235 A CN2012100929235 A CN 2012100929235A CN 201210092923 A CN201210092923 A CN 201210092923A CN 102633122 A CN102633122 A CN 102633122A
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Abstract
The invention discloses a pneumatic conveying and blast furnace injecting device for coke oven dust-removing ash and a using method of the device. The pneumatic conveying and blast furnace injecting device comprises a coke oven dust-removing ash pneumatic conveying air source unit, a coke oven dust-removing ash pneumatic conveying main unit, a gas-pressure balance unit, an ash conveying pipeline travel cleaning unit, a coke oven dust-removing ash and secondary coal distribution unit, a coke oven dust-removing ash and secondary coal grinding unit, a coke oven dust-removing ash and secondary coal grinded material collection unit, a pulverized coal baking unit, a coke oven dust-removing ash and secondary coal grinding process safe-extinguishment unit and a blast furnace injecting unit. The device completely solves the problem that coke oven dust-removing ash is used as one of the biggest coked environmental pollution sources by long-distance sealed pneumatic conveying, is safe and reliable in operation, improves the environmental protection benefit, the energy efficiency and the automatic production level, achieves full-automatic production operation, reduces the labour intensity of a worker and achieves the production management idea based on humanistic theory.
Description
Technical field
The present invention relates to field of metallurgy, especially relate to a kind of strength that is used for the coke oven dust ash and carry and blast furnace blowing device and method of application thereof.
Background technology
Along with the improvement of coke oven production process dust loss and applying of Dry Quenching Technology; Coking industry can both be collected a large amount of coke oven dust ashes every day; And these coke oven dust ash main components of collecting are coke powder; Carbon content is all more than 85%, and environmental protection conveying how to carry out the coke oven dust ash is a good problem to study with effective comprehensive application.
Present domestic coke oven dust ash traditional treatment method be adopt humidification and with case jar vehicular transport to the sintering stock ground, be used for sintering process.There is following problem in traditional approach: automobile loading and unloading and transportation are prone to airborne dust, scatter, and especially dust is difficult to capture when the discharging of sintering deposit groove, causes serious secondary pollution; Sintering has certain requirement to the granularity of fuel simultaneously; Too small like fuel granularity, influence the permeability to air of sinter bed since in the coking dedusting ash the most of particle diameter of coke powder less than 1mm; And these tiny coke powders make the permeability to air variation of sinter bed, influence sintering quality.Therefore, the coking dedusting ash also not exclusively is suitable for double burned fuel, need carry and effective new approach of seeking that utilizes for the environmental protection of coking dedusting ash for this reason.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of strength that is used for the coke oven dust ash to carry and blast furnace blowing device and method of application thereof to the problem that exists in the prior art; Its objective is and change the traditional mode that the coke oven dust ash is carried; The realization environmental protection is carried; Simultaneously, it is high to solve motor transport cost, avoids expending shortcomings such as new water damping.
Technical scheme of the present invention be strength that this kind is used for coke oven dust ash carry with the blast furnace blowing device comprise coke oven dust ash strength carry gas source unit, coke oven dust ash strength carry main unit, air pressure balance unit, ash conveying pipe along journey block clearing unit, coke oven dust ash and clean fine coal dispensing unit, coke oven dust ash and the levigate unit of clean fine coal, coke oven dust ash and the levigate material collection of clean fine coal unit, fine coal drying unit, coke oven dust ash and clean fine coal levigate process safety fire extinguishing unit and blast furnace blowing unit, said units is through corresponding plumbing system connection; Described coke oven dust ash strength carries gas source unit by through the first-hand movable valve of corresponding plumbing system bonded assembly successively, pressurized air drum and second-hand's movable valve with form; Carry main unit to be connected from the pipeline that second-hand's movable valve comes out with coke oven dust ash strength; Described coke oven dust ash strength carries main unit to be made up of storehouse pumping system and two parts of the terminal gas filled device of ash conveying pipe; Wherein the storehouse pumping system also is connected with the level-sensing device and first pressure transmission device by forming through first operated pneumatic valve of corresponding plumbing system bonded assembly successively, first orifice plate, first non-return valve, defeated grey storehouse pump, second operated pneumatic valve, the 3rd operated pneumatic valve and the 3rd manually-operated gate on the pump of described defeated grey storehouse; The pipe end gas filled device is by forming through the 5th operated pneumatic valve of corresponding plumbing system bonded assembly successively, second orifice plate, second non-return valve and second pressure transmission device; The end of described the 3rd manually-operated gate connects first coke oven dust ash storehouse, and described air pressure balance unit is between first coke oven dust ash storehouse and defeated grey storehouse pump, to be connected one the 4th operated pneumatic valve through plumbing system; The other end of second pressure transmission device is connected with clean fine coal dispensing unit with the coke oven dust ash; Ash conveying pipe is provided and delivered between the unit at second pressure transmission device and coke oven dust ash and clean fine coal along journey block clearing unit; Described ash conveying pipe along journey block clearing unit by forming through the 4th manually-operated gate of corresponding plumbing system bonded assembly successively, first electrically operated valve, the 3rd non-return valve and the 3rd orifice plate; Described coke oven dust ash comprises second coke oven dust ash storehouse and clean fine coal storehouse with clean fine coal dispensing unit; Top, the storehouse explosion venting valve and first roof scrubber are installed in top, second coke oven dust ash storehouse; The electronic planet unloading valve of band frequency converter and first electronic belt scale are installed in below, second coke oven dust ash storehouse; The electronic paddle coal feeder of band frequency converter and the below that second electronic belt scale is installed in the clean fine coal storehouse, described coke oven dust ash also comprises clean fine coal load-transfer device and clean fine coal and coke oven dust ash dispensing belt feeder with clean fine coal dispensing unit; Described coke oven dust ash comprises first clean fine coal and coke oven dust ash compound storehouse with the levigate unit of clean fine coal; Second roof scrubber is installed in the top in first clean fine coal and coke oven dust ash compound storehouse, and hyperbola hopper, gate valve, feeder, medium-speed pulverizer are installed in the below in first clean fine coal and coke oven dust ash compound storehouse successively; The outlet of medium-speed pulverizer is connected with the levigate material collection of clean fine coal unit with the coke oven dust ash through plumbing system; Described coke oven dust ash comprises cloth bag collection machine with the levigate material collection of clean fine coal unit; One of them outlet of cloth bag collection machine is connected with induced draft fan and chimney in turn; The outlet of cloth bag collection machine below is connected with Impeller powder feeder, fine coal sieve, second clean fine coal and the coke oven dust ash compound storehouse and second electrically operated valve in turn, and the 3rd roof scrubber is installed on second clean fine coal and the coke oven dust ash compound storehouse; Described fine coal drying unit is connected on the medium-speed pulverizer through corresponding plumbing system, and the fine coal drying unit comprises through corresponding plumbing system bonded assembly blast-furnace hot-air exhaust-gas treatment unit and the 4th electrically operated valve; Described coke oven dust ash is connected on the medium-speed pulverizer through corresponding plumbing system with the levigate process safety fire extinguishing of clean fine coal unit, and described coke oven dust ash comprises plumbing system bonded assembly nitrogen bag and the 3rd electrically operated valve that green phase is answered with the levigate process safety fire extinguishing of clean fine coal unit; Described blast furnace blowing unit is connected the other end of second electrically operated valve; Described blast furnace blowing unit comprises the winding-up jar; Electronic equalizer valve is connected with the winding-up jar through different plumbing systems with the fluidisation control cock, and injection valve is connected with the winding-up jar through electronic fine coal valve with the rifle valve.
Be provided with distributing box between described injection valve and the fine coal valve.
Be provided with the silencer that reduces induced draft fan operation noise between described cloth bag collection machine and the induced draft fan.
Utilize the method for application that the above-mentioned strength that is used for coke oven dust ash is carried and the blast furnace blowing device carries out dedusting ash to comprise:
1) operation coke oven dust ash strength is carried main unit;
2) operation coke oven dust ash and clean fine coal dispensing unit;
3) operation coke oven dust ash and the levigate unit of clean fine coal;
4) operation coke oven dust ash and the levigate material collection of clean fine coal unit;
5) operating blast furnaces winding-up unit.
Described coke oven dust ash strength carries the operating procedure of main unit to comprise,
1) source of the gas part operation technology: the first-hand movable valve of pressurized air unit is opened, and charged into pressurized air, after pressure reaches setting value, open second-hand's movable valve to the pressurized air drum;
2) air pressure balance operating procedure between first coke oven dust ash storehouse and the defeated grey storehouse pump: follow procedure self-opening the 4th operated pneumatic valve has just been accomplished the air pressure balance between first coke oven dust ash storehouse and the defeated grey storehouse pump, and this operation purpose is to guarantee that the material in first coke oven dust ash storehouse can successfully get in the pump of defeated grey storehouse;
3) fail grey storehouse pump feed operation technology: follow procedure self-opening the 3rd operated pneumatic valve; Defeated grey storehouse pump begins charging; When material level reaches the level-sensing device setting value, the 3rd operated pneumatic valve follow procedure SELF CL, defeated grey storehouse pump feed operation is accomplished; This unit the 3rd manually-operated gate is often opened, and only closes during overhaul of the equipments;
4) coke oven dust ash fluidisation operating procedure: follow procedure self-opening first operated pneumatic valve; The flow of setting through first orifice plate charges into pressurized air in the pump of defeated grey storehouse; Fluidizer through in the pump of defeated grey storehouse carries out the fluidisation operation, when inflation pressure reaches the setting value of first pressure transmission device, and the first operated pneumatic valve follow procedure SELF CL; The fluidisation operation is accomplished, and this unit first non-return valve function is that material and the pressure gas in the pump of the defeated grey storehouse of blocking-up flows to air supply system;
5) coke oven dust ash strength conveying operations technology: follow procedure self-opening second operated pneumatic valve; The 5th operated pneumatic valve of the terminal gas filled device of while ash conveying pipe is self-opening also, and the coke oven dust ash in the pump of defeated so grey storehouse just is compressed air through ash conveying pipe and is transported in the grey storehouse of second coke oven dust; The second orifice plate function is to set compressed gas flow in the terminal gas filled device of ash conveying pipe; The second non-return valve function is that material and the pressure gas in the blocking-up ash conveying pipe flows to air supply system; The function of second pressure transmission device is to measure the ash conveying pipe internal pressure; When pressure during less than setup pressure value, the 5th operated pneumatic valve follow procedure SELF CL of the terminal gas filled device of ash conveying pipe, this jar of coke oven dust ash strength conveying operations is accomplished;
6) ash conveying pipe is along journey block clearing unit operation technology: when the ash conveying pipe internal pressure surpasses the setting value of second pressure transmission device; Several ash conveying pipes are along the first electrically operated valve follow procedure self-opening in the journey block clearing unit, and in ash conveying pipe, charge into the pressure gas block clearing; The 4th manually-operated gate is often opened in this unit, closes during maintenance, and the 3rd non-return valve function is that material and the pressure gas in the blocking-up ash conveying pipe flows to gas source pipe, and the 3rd orifice plate function is to set compressed gas flow.
Described coke oven dust ash comprises with clean fine coal dispensing unit operation technology; Electronic paddle coal feeder, second electronic belt scale and the clean fine coal of the electronic planet unloading valve of follow procedure self-opening band frequency converter, first electronic belt scale, clean fine coal belt conveyer, band frequency converter and coke oven dust ash dispensing belt feeder; The electronic planet unloading valve and first electronic belt scale through the band frequency converter are accomplished the grey ration distribution of coke oven dust; Through the electronic paddle coal feeder of band frequency converter and the ration distribution of second electronic belt scale completion clean fine coal; The coke oven dust of above ration distribution ash and clean fine coal blending clean fine coal is provided and delivered belt feeder with the coke oven dust ash on, and be transported in first clean fine coal and the grey compound of the coke oven dust storehouse through it; Because second coke oven dust ash storehouse is the terminal point that strength is carried, and is provided with the pressure release that top, storehouse explosion relief valve is used for this storehouse above that, first roof scrubber is used for the dust collection of coke oven dust ash discharging point; On first clean fine coal and coke oven dust ash compound storehouse, be provided with second roof scrubber, be used for the dust collection of material discharging point.
Described coke oven dust ash comprises with the operating procedure of the levigate unit of clean fine coal,
1) follow procedure self-opening gate valve, feeder, medium-speed pulverizer, the material in first clean fine coal and the coke oven dust ash compound storehouse will be continuously by levigate;
2) because clean fine coal contains certain moisture content; Be provided with the stoving process of clean fine coal for this this unit; As long as open blast-furnace hot-air exhaust-gas treatment unit and the 4th electrically operated valve, blast-furnace hot-air waste gas will get into the medium-speed pulverizer relevant portion continuously clean fine coal and coke oven dust ash are dried;
3) because clean fine coal and coke oven dust ash are combustible material; For this this unit is provided with the nitrogen extinguishing device; This device comprises nitrogen bag, the 3rd electrically operated valve and corresponding pipeline system; In case clean fine coal and coke oven dust ash burn in levigate process, program is self-opening the 3rd electrically operated valve, and nitrogen gets into the operation of putting out a fire of medium-speed pulverizer relevant portion immediately.
Described coke oven dust ash comprises with the operating procedure of the levigate material collection of clean fine coal unit,
1) follow procedure self-opening induced draft fan, the material that medium-speed pulverizer is levigate will be inhaled into cloth bag collection machine, and this process coke oven dust ash is collected with the levigate material of clean fine coal, and gas is partly through the chimney exhaust to atmosphere;
2) material of cloth bag collection machine collection is transported in second clean fine coal and the coke oven dust ash compound storehouse through Impeller powder feeder, fine coal sieve; The 3rd roof scrubber is used for the dust collection of material discharging point, and the fine coal sieve is used for the separation of foreign material, and the silencer function is to reduce the noise of induced draft fan operation.
The operating procedure of described blast furnace blowing unit comprises; Unlatching through second electrically operated valve; Material dosing in second clean fine coal and the coke oven dust ash compound storehouse is dispensed in the winding-up jar, open subsequently the fluidisation control cock in winding-up jar inflated with nitrogen to goods fluid, after the goods fluid end; Open electronic equalizer valve and in the winding-up jar, charge into nitrogen once more; Open electronic fine coal valve simultaneously material is sent into distributing box, through injection valve, rifle valve clean fine coal and coke oven dust ash mixed powder are jetted to the blast furnace correlation unit, the whole operation process can be accomplished.
This kind with said structure is used for grey strength conveying of coke oven dust and blast furnace blowing device and method of application thereof and has the following advantages:
This kind strength of being used for coke oven dust ash carry with the blast furnace blowing device through long distance, the conveying of closed strength; The coke oven dust ash has obtained basic solution as the problem of one of maximum environomental pollution source of coking; Safety, reliability service all have lifting aspect three of environmental benefits, source benefit, production automation level.
2. this kind strength of being used for coke oven dust ash is carried and has been avoided the coke oven dust artificial execute-in-place humidification of ash needs with the blast furnace blowing device and put ash, vehicular transport, unload operation such as ash; Accomplished the fully-automatic production operation; Reduce worker's labour intensity, realized the production and operation theory that people-oriented.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further:
Fig. 1 is a structural representation of the present invention.
In Fig. 1,1: first-hand movable valve; 2: the pressurized air drum; 3: second-hand's movable valve; 4: the first operated pneumatic valves; 5: the first orifice plates; 6: the first non-return valves; 7: defeated grey storehouse pump; 8: the second operated pneumatic valves; 9: the three operated pneumatic valves; 10: level-sensing device; 11: the first pressure transmission devices; 12: the four operated pneumatic valves; 13: the three manually-operated gates; 14: the first coke oven dust ash storehouses; 15: the five operated pneumatic valves; 16: the second orifice plates; 17: the second non-return valves; 18: the second pressure transmission devices; 19: the four manually-operated gates; 20: the first electrically operated valves; 21: the three non-return valves; 22: the three orifice plates; 23: top, storehouse explosion venting valve; 24: the second coke oven dust ash storehouses; 25: the first roof scrubbers; 26: the clean fine coal storehouse; 27: the clean fine coal load-transfer device; 28: the electronic planet unloading valve of band frequency converter; 29: the first electronic belt scales; 30: the electronic paddle coal feeder of band frequency converter; 31: the second electronic belt scales; 32: clean fine coal and coke oven dust ash dispensing belt feeder; 33: the first clean fine coals and coke oven dust ash compound storehouse; 34: the second roof scrubbers; 35: the hyperbola hopper; 36: gate valve; 37: feeder; 38: medium-speed pulverizer; 39: cloth bag collection machine; 40: Impeller powder feeder; 41: the fine coal sieve; 42: silencer; 43: induced draft fan; 44: chimney; 45: the three roof scrubbers; 46: the second clean fine coals and coke oven dust ash compound storehouse; 47: the second electrically operated valves; 48: the winding-up jar; 49: electronic equalizer valve; 50: the fluidisation control cock; 51: electronic fine coal valve; 52: distributing box; 53: injection valve; 54: the rifle valve; 55: the nitrogen bag; 56: the three electrically operated valves; 57: blast-furnace hot-air exhaust-gas treatment unit; 58: the four electrically operated valves.
The specific embodiment
Can know by structure shown in Figure 1; The strength that this kind is used for coke oven dust ash carry with the blast furnace blowing device comprise coke oven dust ash strength carry gas source unit, coke oven dust ash strength carry main unit, air pressure balance unit, ash conveying pipe along journey block clearing unit, coke oven dust ash and clean fine coal dispensing unit, coke oven dust ash and the levigate unit of clean fine coal, coke oven dust ash and the levigate material collection of clean fine coal unit, fine coal drying unit, coke oven dust ash and clean fine coal levigate process safety fire extinguishing unit and blast furnace blowing unit, said units is through corresponding plumbing system connection; Coke oven dust ash strength carries gas source unit by through the first-hand movable valve of corresponding plumbing system bonded assembly successively 1, pressurized air drum 2 and second-hand's movable valve 3 with form; Carry main unit to be connected from the pipeline that second-hand's movable valve 3 comes out with coke oven dust ash strength; Coke oven dust ash strength carries main unit to be made up of storehouse pumping system and two parts of the terminal gas filled device of ash conveying pipe; Wherein the storehouse pumping system is failed on the grey storehouse pump 7 and also is connected with the level-sensing device 10 and first pressure transmission device 11 by forming through first operated pneumatic valve 4 of corresponding plumbing system bonded assembly successively, first orifice plate 5, first non-return valve 6, defeated grey storehouse pump 7, second operated pneumatic valve 8, the 3rd operated pneumatic valve 9 and the 3rd manually-operated gate 13; The pipe end gas filled device is by forming through the 5th operated pneumatic valve 15 of corresponding plumbing system bonded assembly successively, second orifice plate 16, second non-return valve 17 and second pressure transmission device 18; The end of the 3rd manually-operated gate 13 connects first coke oven dust ash storehouse 14, and the air pressure balance unit is between first coke oven dust ash storehouse 14 and defeated grey storehouse pump 7, to be connected one the 4th operated pneumatic valve 12 through plumbing system; The other end of second pressure transmission device 18 is connected with clean fine coal dispensing unit with the coke oven dust ash; Ash conveying pipe is provided and delivered between the unit at second pressure transmission device 18 and coke oven dust ash and clean fine coal along journey block clearing unit; Ash conveying pipe along journey block clearing unit by forming through the 4th manually-operated gate 19 of corresponding plumbing system bonded assembly successively, first electrically operated valve 20, the 3rd non-return valve 21 and the 3rd orifice plate 22; The coke oven dust ash comprises second coke oven dust ash storehouse 24 and clean fine coal storehouse 26 with clean fine coal dispensing unit; Top, the storehouse explosion venting valve 23 and first roof scrubber 25 are installed in 24 tops, second coke oven dust ash storehouse; The electronic planet unloading valve 28 of band frequency converter and first electronic belt scale 29 are installed in 24 belows, second coke oven dust ash storehouse; The electronic paddle coal feeder 30 of band frequency converter and the below that second electronic belt scale 31 is installed in clean fine coal storehouse 26, the coke oven dust ash also comprises clean fine coal load-transfer device 27 and clean fine coal and coke oven dust ash dispensing belt feeder 32 with clean fine coal dispensing unit; The coke oven dust ash comprises first clean fine coal and coke oven dust ash compound storehouse 33 with the levigate unit of clean fine coal; Second roof scrubber 34 is installed in the top in first clean fine coal and coke oven dust ash compound storehouse 33, and hyperbola hopper 35, gate valve 36, feeder 37, medium-speed pulverizer 38 are installed in the below in first clean fine coal and coke oven dust ash compound storehouse 33 successively; The outlet of medium-speed pulverizer 38 is connected with the levigate material collection of clean fine coal unit with the coke oven dust ash through plumbing system; The coke oven dust ash comprises cloth bag collection machine 39 with the levigate material collection of clean fine coal unit; Cloth bag collection machine 39 one of them outlet are connected with induced draft fan 43 and chimney 44 in turn, and are provided with the silencer 42 that reduces induced draft fan 43 operation noises between cloth bag collection machine 39 and the induced draft fan 43; The outlet of cloth bag collection machine 39 belows is connected with Impeller powder feeder 40, fine coal sieve 41, second clean fine coal and coke oven dust ash compound storehouse 46 in turn and second electrically operated valve, 47, the three roof scrubbers 45 are installed on second clean fine coal and the coke oven dust ash compound storehouse 46; The fine coal drying unit is connected on the medium-speed pulverizer 38 through corresponding plumbing system, and the fine coal drying unit comprises through corresponding plumbing system bonded assembly blast-furnace hot-air exhaust-gas treatment unit 57 and the 4th electrically operated valve 58; The coke oven dust ash is connected on the medium-speed pulverizer 38 through corresponding plumbing system with the levigate process safety fire extinguishing of clean fine coal unit, and the coke oven dust ash comprises plumbing system bonded assembly nitrogen bag 55 and the 3rd electrically operated valve 56 that green phase is answered with the levigate process safety fire extinguishing of clean fine coal unit; The blast furnace blowing unit is connected the other end of second electrically operated valve 47; The blast furnace blowing unit comprises winding-up jar 48; Electronic equalizer valve 49 is connected with winding-up jar 48 through different plumbing systems with fluidisation control cock 50; Injection valve 53 is connected with winding-up jar 48 through electronic fine coal valve 51 with rifle valve 54, and is provided with distributing box 52 between injection valve 53 and the fine coal valve 51.
Utilize the method for application that the above-mentioned strength that is used for coke oven dust ash is carried and the blast furnace blowing device carries out dedusting ash to comprise:
1) operation coke oven dust ash strength is carried main unit;
2) operation coke oven dust ash and clean fine coal dispensing unit;
3) operation coke oven dust ash and the levigate unit of clean fine coal;
4) operation coke oven dust ash and the levigate material collection of clean fine coal unit;
5) operating blast furnaces winding-up unit.
Wherein, coke oven dust ash strength carries the operating procedure of main unit to comprise,
1) source of the gas part operation technology: the first-hand movable valve 1 of pressurized air unit is opened, and charged into pressurized air, after pressure reaches setting value, open second-hand's movable valve 3 to pressurized air drum 2;
2) air pressure balance operating procedure between first coke oven dust ash storehouse 14 and the defeated grey storehouse pump 7: follow procedure self-opening the 4th operated pneumatic valve 12 has just been accomplished the air pressure balance between first coke oven dust ash storehouse 14 and the defeated grey storehouse pump 7, and this operation purpose is to guarantee that the material in first coke oven dust ash storehouse 14 can successfully get in the defeated grey storehouse pump 7;
3) fail grey storehouse pump 7 feed operation technologies: follow procedure self-opening the 3rd operated pneumatic valve 9; The 7 beginning chargings of defeated grey storehouse pump; When material level reaches level-sensing device 10 setting values, the 3rd operated pneumatic valve 9 follow procedure SELF CLs, defeated grey storehouse pump 7 feed operation are accomplished; This unit the 3rd manually-operated gate 13 is often opened, and only closes during overhaul of the equipments;
4) coke oven dust ash fluidisation operating procedure: follow procedure self-opening first operated pneumatic valve 4; The flow of setting through first orifice plate 5 charges into pressurized air in defeated grey storehouse pump 7; Fluidizer through in the defeated grey storehouse pump 7 carries out the fluidisation operation, when inflation pressure reaches the setting value of first pressure transmission device 11, and first operated pneumatic valve, 4 follow procedure SELF CLs; The fluidisation operation is accomplished, and these unit first non-return valve, 6 functions are that material and the pressure gas in the defeated grey storehouse of the blocking-up pump 7 flows to air supply system;
5) coke oven dust ash strength conveying operations technology: follow procedure self-opening second operated pneumatic valve 8; The 5th operated pneumatic valve 15 of the terminal gas filled device of while ash conveying pipe is self-opening also, and the coke oven dust ash in the defeated so grey storehouse pump 7 just is compressed air through ash conveying pipe and is transported in the grey storehouse 24 of second coke oven dust; Second orifice plate, 16 functions are to set compressed gas flow in the terminal gas filled device of ash conveying pipe; Second non-return valve, 17 functions are that material and the pressure gas in the blocking-up ash conveying pipe flows to air supply system; The function of second pressure transmission device 18 is to measure the ash conveying pipe internal pressure; When pressure during less than setup pressure value, the 5th operated pneumatic valve 15 follow procedure SELF CLs of the terminal gas filled device of ash conveying pipe, this jar of coke oven dust ash strength conveying operations is accomplished;
6) ash conveying pipe is along journey block clearing unit operation technology: when the ash conveying pipe internal pressure surpasses the setting value of second pressure transmission device 18; Several ash conveying pipes are along first electrically operated valve, the 20 follow procedure self-openings in the journey block clearing unit, and in ash conveying pipe, charge into the pressure gas block clearing; The 4th manually-operated gate 19 is often opened in this unit, closes during maintenance, and the 3rd non-return valve 21 functions are that material and the pressure gas in the blocking-up ash conveying pipe flows to gas source pipe, and the 3rd orifice plate 22 functions are to set compressed gas flow.
The coke oven dust ash comprises with clean fine coal dispensing unit operation technology; Electronic paddle coal feeder 30, second electronic belt scale 31 and clean fine coal and the coke oven dust ash of the electronic planet unloading valve 28 of follow procedure self-opening band frequency converter, first electronic belt scale 29, clean fine coal belt conveyer 27, the band frequency converter belt feeder 32 of providing and delivering; The electronic planet unloading valve 28 and first electronic belt scale 29 through the band frequency converter are accomplished the grey ration distribution of coke oven dust; Through the electronic paddle coal feeder 30 of band frequency converter and the ration distribution of second electronic belt scale, 31 completion clean fine coals; The coke oven dust of above ration distribution ash and clean fine coal blending clean fine coal is provided and delivered belt feeder 32 with the coke oven dust ash on, and be transported in first clean fine coal and the grey compound of the coke oven dust storehouse 33 through it; Because the terminal point that carry for strength in second coke oven dust ash storehouse 24 is provided with the pressure release that top, storehouse explosion relief valve 23 is used for this storehouse above that, first roof scrubber 25 is used for the dust collection of coke oven dust ash discharging point; On first clean fine coal and coke oven dust ash compound storehouse 33, be provided with second roof scrubber 34, be used for the dust collection of material discharging point.
Coke oven dust ash comprises with the operating procedure of the levigate unit of clean fine coal,
1) material in follow procedure self-opening gate valve 36, feeder 37, medium-speed pulverizer 38, the first clean fine coals and the coke oven dust ash compound storehouse 33 will be continuously by levigate;
2) because clean fine coal contains certain moisture content; Be provided with the stoving process of clean fine coal for this this unit; As long as open blast-furnace hot-air exhaust-gas treatment unit 57 and the 4th electrically operated valve 58, blast-furnace hot-air waste gas will get into medium-speed pulverizer 38 relevant portions continuously clean fine coal and coke oven dust ash are dried;
3) because clean fine coal and coke oven dust ash are combustible material; For this this unit is provided with the nitrogen extinguishing device; This device comprises nitrogen bag 55, the 3rd electrically operated valve 56 and corresponding pipeline system; In case clean fine coal and coke oven dust ash burn in levigate process, program is self-opening the 3rd electrically operated valve 56, and nitrogen gets into the operation of putting out a fire of medium-speed pulverizer 38 relevant portions immediately.
Coke oven dust ash comprises with the operating procedure of the levigate material collection of clean fine coal unit,
1) follow procedure self-opening induced draft fan 43, medium-speed pulverizer 38 levigate materials will be inhaled into cloth bag collection machine 39, and this process coke oven dust ash is collected with the levigate material of clean fine coal, and gas is partly through chimney 44 exhaust to atmospheres;
2) material of cloth bag collection machine 39 collections is transported in second clean fine coal and the coke oven dust ash compound storehouse 46 through Impeller powder feeder 40, fine coal sieve 41; The 3rd roof scrubber 45 is used for the dust collection of material discharging point, and fine coal sieve 41 is used for the separation of foreign material, and silencer 42 functions are to reduce the noise of induced draft fan 43 operations.
The operating procedure of blast furnace blowing unit comprises; Unlatching through second electrically operated valve 47; Material dosings in second clean fine coal and the coke oven dust ash compound storehouse 46 are dispensed in the winding-up jars 48, open subsequently fluidisation control cock 50 in winding-up jars 48 inflated with nitrogen to goods fluid, after the goods fluid end; Open electronic equalizer valve 49 and in winding-up jar 48, charge into nitrogen once more; Open electronic fine coal valve 51 simultaneously material is sent into distributing box 52, through injection valve 53, rifle valve 54 clean fine coal and coke oven dust ash mixed powder are jetted to the blast furnace correlation unit, the whole operation process can be accomplished.
This kind is used for the strength conveying and the blast furnace blowing device of coke oven dust ash and accomplished safety, reliability service, and implementation result is mainly reflected in environmental benefit, source benefit, three aspects of production automation level lifting.
The environmental benefit aspect: carry through long distance, closed strength, the coke oven dust ash has obtained basic solution as the problem of one of maximum environomental pollution source of coking.
Source benefit aspect: turn waste into wealth; Calculate with existing conveying level, carry 3.3 ten thousand tons of high eating value coke powders to blast furnace system continuously and stably every year on average, amount to about 3.0266 ten thousand tons of clean fine coal; Amount to about 3934.58 ten thousand yuan of Renminbi; About 2,611 ten thousand yuan of deduction cost direct economic benefit, the while can be cancelled the plan and the humidifying technology of vehicular transport 20 car coke powders every day, annual about 7300 tons of the new water of practicing thrift.
Production automation level lifting aspect: avoid existing coke oven dust ash to need artificial execute-in-place humidification and put ash, vehicular transport, unload operation such as ash, realize the fully-automatic production operation, reduce worker's labour intensity, realized the production and operation theory that people-oriented.
Claims (9)
1. a strength that is used for the coke oven dust ash is carried and the blast furnace blowing device; It is characterized in that: described strength carry with the blast furnace blowing device comprise coke oven dust ash strength carry gas source unit, coke oven dust ash strength carry main unit, air pressure balance unit, ash conveying pipe along journey block clearing unit, coke oven dust ash and clean fine coal dispensing unit, coke oven dust ash and the levigate unit of clean fine coal, coke oven dust ash and the levigate material collection of clean fine coal unit, fine coal drying unit, coke oven dust ash and clean fine coal levigate process safety fire extinguishing unit and blast furnace blowing unit, said units is through corresponding plumbing system connection; Described coke oven dust ash strength carries gas source unit by through the first-hand movable valve of corresponding plumbing system bonded assembly successively (1), pressurized air drum (2) and second-hand's movable valve (3) with form; Carry main unit to be connected from the pipeline that second-hand's movable valve (3) comes out with coke oven dust ash strength; Described coke oven dust ash strength carries main unit to be made up of storehouse pumping system and two parts of the terminal gas filled device of ash conveying pipe; Wherein the storehouse pumping system also is connected with level-sensing device (10) and first pressure transmission device (11) by forming through first operated pneumatic valve of corresponding plumbing system bonded assembly successively (4), first orifice plate (5), first non-return valve (6), defeated grey storehouse pump (7), second operated pneumatic valve (8), the 3rd operated pneumatic valve (9) and the 3rd manually-operated gate (13) on the described defeated grey storehouse pump (7); The pipe end gas filled device is by forming through the 5th operated pneumatic valve of corresponding plumbing system bonded assembly successively (15), second orifice plate (16), second non-return valve (17) and second pressure transmission device (18); The end of described the 3rd manually-operated gate (13) connects first coke oven dust ash storehouse (14), and described air pressure balance unit is between first coke oven dust ash storehouse (14) and defeated grey storehouse pump (7), to be connected one the 4th operated pneumatic valve (12) through plumbing system; The other end of second pressure transmission device (18) is connected with clean fine coal dispensing unit with the coke oven dust ash; Ash conveying pipe is positioned between second pressure transmission device (18) and coke oven dust ash and the clean fine coal dispensing unit along journey block clearing unit; Described ash conveying pipe along journey block clearing unit by forming through the 4th manually-operated gate of corresponding plumbing system bonded assembly successively (19), first electrically operated valve (20), the 3rd non-return valve (21) and the 3rd orifice plate (22); Described coke oven dust ash comprises second coke oven dust ash storehouse (24) and clean fine coal storehouse (26) with clean fine coal dispensing unit; Top, storehouse explosion venting valve (23) and first roof scrubber (25) are installed in top, second coke oven dust ash storehouse (24); The electronic planet unloading valve (28) of band frequency converter and first electronic belt scale (29) are installed in below, second coke oven dust ash storehouse (24); The electronic paddle coal feeder (30) of band frequency converter and the below that second electronic belt scale (31) is installed in clean fine coal storehouse (26), described coke oven dust ash also comprises clean fine coal load-transfer device (27) and clean fine coal and coke oven dust ash dispensing belt feeder (32) with clean fine coal dispensing unit; Described coke oven dust ash comprises first clean fine coal and coke oven dust ash compound storehouse (33) with the levigate unit of clean fine coal; Second roof scrubber (34) is installed in the top in first clean fine coal and coke oven dust ash compound storehouse (33), and hyperbola hopper (35), gate valve (36), feeder (37), medium-speed pulverizer (38) are installed in the below in first clean fine coal and coke oven dust ash compound storehouse (33) successively; The outlet of medium-speed pulverizer (38) is connected with the levigate material collection of clean fine coal unit with the coke oven dust ash through plumbing system; Described coke oven dust ash comprises cloth bag collection machine (39) with the levigate material collection of clean fine coal unit; One of them outlet of cloth bag collection machine (39) is connected with induced draft fan (43) and chimney (44) in turn; The outlet of cloth bag collection machine (39) below is connected with Impeller powder feeder (40), fine coal sieve (41), second clean fine coal and coke oven dust ash compound storehouse (46) and second electrically operated valve (47) in turn, and the 3rd roof scrubber (45) is installed on second clean fine coal and the coke oven dust ash compound storehouse (46); Described fine coal drying unit is connected on the medium-speed pulverizer (38) through corresponding plumbing system, and the fine coal drying unit comprises through corresponding plumbing system bonded assembly blast-furnace hot-air exhaust-gas treatment unit (57) and the 4th electrically operated valve (58); Described coke oven dust ash is connected on the medium-speed pulverizer (38) through corresponding plumbing system with the levigate process safety fire extinguishing of clean fine coal unit, and described coke oven dust ash comprises plumbing system bonded assembly nitrogen bag (55) and the 3rd electrically operated valve (56) that green phase is answered with the levigate process safety fire extinguishing of clean fine coal unit; Described blast furnace blowing unit is connected the other end of second electrically operated valve (47); Described blast furnace blowing unit comprises winding-up jar (48); Electronic equalizer valve (49) is connected with winding-up jar (48) through different plumbing systems with fluidisation control cock (50), and injection valve (53) is connected with winding-up jar (48) through electronic fine coal valve (51) with rifle valve (54).
2. a kind of strength that is used for the coke oven dust ash according to claim 1 is carried and the blast furnace blowing device, it is characterized in that: be provided with distributing box (52) between described injection valve (53) and the fine coal valve (51).
3. a kind of strength that is used for the coke oven dust ash according to claim 1 and 2 is carried and the blast furnace blowing device, it is characterized in that: be provided with the silencer (42) that reduces induced draft fan (43) operation noise between described cloth bag collection machine (39) and the induced draft fan (43).
4. utilize the described strength that is used for coke oven dust ash of each claim of claim 1-3 to carry and the blast furnace blowing device carries out the method for application of dedusting ash, it is characterized in that: the method for application of described dedusting ash comprises,
1) operation coke oven dust ash strength is carried main unit;
2) operation coke oven dust ash and clean fine coal dispensing unit;
3) operation coke oven dust ash and the levigate unit of clean fine coal;
4) operation coke oven dust ash and the levigate material collection of clean fine coal unit;
5) operating blast furnaces winding-up unit.
5. the method for application of utilizing strength conveying and blast furnace blowing device to carry out dedusting ash according to claim 4 is characterized in that: described coke oven dust ash strength carries the operating procedure of main unit to comprise,
1) source of the gas part operation technology: the first-hand movable valve (1) of pressurized air unit is opened, and charged into pressurized air, after pressure reaches setting value, open second-hand's movable valve (3) to pressurized air drum (2);
2) air pressure balance operating procedure between first coke oven dust ash storehouse (14) and the defeated grey storehouse pump (7): follow procedure self-opening the 4th operated pneumatic valve (12) has just been accomplished the air pressure balance between first coke oven dust ash storehouse (14) and the defeated grey storehouse pump (7), and this operation purpose is to guarantee that the material in first coke oven dust ash storehouse (14) can successfully get in the defeated grey storehouse pump (7);
3) defeated grey storehouse pump (7) feed operation technology: follow procedure self-opening the 3rd operated pneumatic valve (9); Defeated grey storehouse pump (7) beginning charging; When material level reaches level-sensing device (10) setting value, the 3rd operated pneumatic valve (9) follow procedure SELF CL, defeated grey storehouse pump (7) feed operation is accomplished; This unit the 3rd manually-operated gate (13) is often opened, and only closes during overhaul of the equipments;
4) coke oven dust ash fluidisation operating procedure: follow procedure self-opening first operated pneumatic valve (4); The flow of setting through first orifice plate (5) charges into pressurized air in defeated grey storehouse pump (7); Fluidizer through in the defeated grey storehouse pump (7) carries out the fluidisation operation; When inflation pressure reaches the setting value of first pressure transmission device (11); First operated pneumatic valve (4) follow procedure SELF CL, the fluidisation operation is accomplished, and this unit first non-return valve (6) function is that material and the pressure gas in the defeated grey storehouse pump (7) of blocking-up flows to air supply system;
5) coke oven dust ash strength conveying operations technology: follow procedure self-opening second operated pneumatic valve (8); The 5th operated pneumatic valve (15) of the terminal gas filled device of while ash conveying pipe is self-opening also, and the coke oven dust ash in the defeated so grey storehouse pump (7) just is compressed air through ash conveying pipe and is transported in the grey storehouse of second coke oven dust (24); Second orifice plate (16) function is to set compressed gas flow in the terminal gas filled device of ash conveying pipe; Second non-return valve (17) function is that material and the pressure gas in the blocking-up ash conveying pipe flows to air supply system; The function of second pressure transmission device (18) is to measure the ash conveying pipe internal pressure; When pressure during less than setup pressure value, the 5th operated pneumatic valve (15) the follow procedure SELF CL of the terminal gas filled device of ash conveying pipe, this jar of coke oven dust ash strength conveying operations is accomplished;
6) ash conveying pipe is along journey block clearing unit operation technology: when the ash conveying pipe internal pressure surpasses the setting value of second pressure transmission device (18); Several ash conveying pipes are along first electrically operated valve (20) the follow procedure self-opening in the journey block clearing unit, and in ash conveying pipe, charge into the pressure gas block clearing; The 4th manually-operated gate (19) is often opened in this unit, closes during maintenance, and the 3rd non-return valve (21) function is that material and the pressure gas in the blocking-up ash conveying pipe flows to gas source pipe, and the 3rd orifice plate (22) function is to set compressed gas flow.
6. the method for application of utilizing strength conveying and blast furnace blowing device to carry out dedusting ash according to claim 5; It is characterized in that: described coke oven dust ash comprises with clean fine coal dispensing unit operation technology; Electronic paddle coal feeder (30), second electronic belt scale (31) and the clean fine coal of the electronic planet unloading valve (28) of follow procedure self-opening band frequency converter, first electronic belt scale (29), clean fine coal belt conveyer (27), band frequency converter and coke oven dust ash dispensing belt feeder (32); Electronic planet unloading valve (28) and first electronic belt scale (29) through the band frequency converter are accomplished the grey ration distribution of coke oven dust; Through the electronic paddle coal feeder (30) of band frequency converter and the ration distribution of second electronic belt scale (31) completion clean fine coal; The coke oven dust ash and the clean fine coal of above ration distribution are gone up blending at clean fine coal and coke oven dust ash dispensing belt feeder (32), and are transported in first clean fine coal and the coke oven dust ash compound storehouse (33) through it; Because the terminal point that carry for strength in second coke oven dust ash storehouse (24) is provided with the pressure release that top, storehouse explosion relief valve (23) is used for this storehouse above that, first roof scrubber (25) is used for the dust collection of coke oven dust ash discharging point; On first clean fine coal and coke oven dust ash compound storehouse (33), be provided with second roof scrubber (34), be used for the dust collection of material discharging point.
7. the strength of utilizing according to claim 6 is carried the method for application of carrying out dedusting ash with the blast furnace blowing device, it is characterized in that: the operating procedure of described coke oven dust ash and the levigate unit of clean fine coal comprises,
1) follow procedure self-opening gate valve (36), feeder (37), medium-speed pulverizer (38), the material in first clean fine coal and the coke oven dust ash compound storehouse (33) will be continuously by levigate;
2) because clean fine coal contains certain moisture content; Be provided with the stoving process of clean fine coal for this this unit; As long as open blast-furnace hot-air exhaust-gas treatment unit (57) and the 4th electrically operated valve (58), blast-furnace hot-air waste gas will get into medium-speed pulverizer (38) relevant portion continuously clean fine coal and coke oven dust ash are dried;
3) because clean fine coal and coke oven dust ash are combustible material; For this this unit is provided with the nitrogen extinguishing device; This device comprises nitrogen bag (55), the 3rd electrically operated valve (56) and corresponding pipeline system; In case clean fine coal and coke oven dust ash burn in levigate process, program is self-opening the 3rd electrically operated valve (56), and nitrogen gets into the operation of putting out a fire of medium-speed pulverizer (38) relevant portion immediately.
8. the strength of utilizing according to claim 7 is carried the method for application of carrying out dedusting ash with the blast furnace blowing device, it is characterized in that: the operating procedure of described coke oven dust ash and the levigate material collection of clean fine coal unit comprises,
1) follow procedure self-opening induced draft fan (43), the material that medium-speed pulverizer (38) is levigate will be inhaled into cloth bag collection machine (39), and this process coke oven dust ash is collected with the levigate material of clean fine coal, and gas is partly through chimney (44) exhaust to atmosphere;
2) material of cloth bag collection machine (39) collection is transported in second clean fine coal and the coke oven dust ash compound storehouse (46) through Impeller powder feeder (40), fine coal sieve (41); The 3rd roof scrubber (45) is used for the dust collection of material discharging point, and fine coal sieve (41) is used for the separation of foreign material, and silencer (42) function is to reduce the noise of induced draft fan (43) operation.
9. the method for application of utilizing strength conveying and blast furnace blowing device to carry out dedusting ash according to claim 8; It is characterized in that: the operating procedure of described blast furnace blowing unit comprises; Unlatching through second electrically operated valve (47); Material dosing in second clean fine coal and the coke oven dust ash compound storehouse (46) is dispensed in the winding-up jar (48), open subsequently fluidisation control cock (50) in winding-up jar (48) inflated with nitrogen to goods fluid, after the goods fluid end; Open electronic equalizer valve (49) and in winding-up jar (48), charge into nitrogen once more; Open electronic fine coal valve (51) simultaneously material is sent into distributing box (52), through injection valve (53), rifle valve (54) clean fine coal and coke oven dust ash mixed powder are jetted to the blast furnace correlation unit, the whole operation process can be accomplished.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057935A (en) * | 2013-01-18 | 2013-04-24 | 戚宗华 | Material balance feeding mechanism of belt conveyor |
| CN104848241A (en) * | 2015-04-08 | 2015-08-19 | 首钢京唐钢铁联合有限责任公司 | Coked ash recovery method |
| CN105018666A (en) * | 2014-04-28 | 2015-11-04 | 宝山钢铁股份有限公司 | Method for conducting melting reduction on dust removal pulverized coal through COREX |
| CN108300824A (en) * | 2018-02-06 | 2018-07-20 | 南通东来冶金装备有限公司 | A kind of coking dedusting ash coke powder blast furnace blowing synergy utilizes system and technique |
| CN111317384A (en) * | 2017-03-30 | 2020-06-23 | 珠海优特智厨科技有限公司 | Seasoning batching system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58172116A (en) * | 1982-03-31 | 1983-10-08 | Nippon Steel Corp | Feeder for powdered fuel |
| CN101417752A (en) * | 2008-11-11 | 2009-04-29 | 上海宝钢工程技术有限公司 | Dust removing process of coal fine spraying system and apparatus thereof |
| CN202575416U (en) * | 2012-03-31 | 2012-12-05 | 马钢(集团)控股有限公司 | Pneumatic transmission and blast furnace injection device for coke oven fly ash |
-
2012
- 2012-03-31 CN CN201210092923.5A patent/CN102633122B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58172116A (en) * | 1982-03-31 | 1983-10-08 | Nippon Steel Corp | Feeder for powdered fuel |
| CN101417752A (en) * | 2008-11-11 | 2009-04-29 | 上海宝钢工程技术有限公司 | Dust removing process of coal fine spraying system and apparatus thereof |
| CN202575416U (en) * | 2012-03-31 | 2012-12-05 | 马钢(集团)控股有限公司 | Pneumatic transmission and blast furnace injection device for coke oven fly ash |
Non-Patent Citations (3)
| Title |
|---|
| 张伟: "高炉喷吹煤粉中添加除尘灰的试验研究", 《冶金丛刊》 * |
| 王志君: "鞍钢高炉除尘灰综合喷吹试验研究", 《炼铁》 * |
| 韩晓东: "在高炉喷吹煤粉中添加高炉除尘灰的试验研究", 《四川冶金》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057935A (en) * | 2013-01-18 | 2013-04-24 | 戚宗华 | Material balance feeding mechanism of belt conveyor |
| CN105018666A (en) * | 2014-04-28 | 2015-11-04 | 宝山钢铁股份有限公司 | Method for conducting melting reduction on dust removal pulverized coal through COREX |
| CN104848241A (en) * | 2015-04-08 | 2015-08-19 | 首钢京唐钢铁联合有限责任公司 | Coked ash recovery method |
| CN111317384A (en) * | 2017-03-30 | 2020-06-23 | 珠海优特智厨科技有限公司 | Seasoning batching system |
| CN111317385A (en) * | 2017-03-30 | 2020-06-23 | 珠海优特智厨科技有限公司 | Seasoning batching system |
| CN111317385B (en) * | 2017-03-30 | 2021-05-07 | 珠海优特智厨科技有限公司 | Seasoning batching system |
| CN111317384B (en) * | 2017-03-30 | 2021-11-09 | 珠海优特智厨科技有限公司 | Seasoning batching system |
| CN108300824A (en) * | 2018-02-06 | 2018-07-20 | 南通东来冶金装备有限公司 | A kind of coking dedusting ash coke powder blast furnace blowing synergy utilizes system and technique |
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| CN102633122B (en) | 2014-01-22 |
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