CN201819229U - Incineration device for treating pulping odor of paper mill - Google Patents
Incineration device for treating pulping odor of paper mill Download PDFInfo
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- CN201819229U CN201819229U CN2010205094854U CN201020509485U CN201819229U CN 201819229 U CN201819229 U CN 201819229U CN 2010205094854 U CN2010205094854 U CN 2010205094854U CN 201020509485 U CN201020509485 U CN 201020509485U CN 201819229 U CN201819229 U CN 201819229U
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- paper mill
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Abstract
The utility model relates to an incineration device for treating pulping odor of a paper mill, which belongs to mechanical equipment and comprises a tube combustion system, a support frame, a fan, an air duct, a pipeline and a valve. A tube consists of an inner tube body and an outer tube body, wherein the inner tube body and the outer tube body are in sandwiched form, a guide board is arranged in a sandwich layer, and the guide board connects the inner tube body with the outer tube body. The combustion system consists of a main combustor and an odor combustor, the main combustor and the odor combustor are connected to the bottom of the tube through a flange, the main combustor is positioned in the center of the bottom of the tube, nozzles of the main combustor perpendicular to the odor combustor are circularly distributed around the main combustor, and the tube supported by the frame is perpendicularly and fixedly mounted above an alkali recovery boiler. The incineration device is reasonable in structure and convenient in use and operation, can be used with the alkali recovery boiler, can also be used individually for incinerating pulping odor of the paper mill when the alkali recovery boiler stops, and can further be widely applied to treatment of similar harmful waste gases.
Description
Technical field
The utility model relates to a kind of incinerator of handling paper mill slurrying foul smell, belongs to the plant equipment class.
Background technology
In paper industry, sulfate pulping is domestic and international prevailing chemical pulping method, all can produce the foul smell of the slurrying generation of variable concentrations in the production process of sulfate process production natural color pulp, contain hydrogen sulfide (H2S), methyl mercaptan (CH3SH), methyl sulfide (CH3SCH3), methyl disulfide main dusty gas such as (CH3SSCH3) in the slurrying foul smell, these gases are harmful to people, animal, excessive suction can cause poisoning, and taste is very smelly.These gases or fuel gas have combustion characteristics as ignition temperature, explosion limit, calorific capacity etc.The slurrying foul smell in past paper mill all is direct discharging, along with the paper mill scale is increasing, the foul smell discharge capacity is also increasing, and environmental requirement fuel gas and pernicious gas do not allow directly sky to be discharged, so the slurrying foul smell must be through handling discharging again after collecting.At present, slurrying production process in paper mill mainly comprises slurrying workshop section and supporting alkali recycle section, the slurrying foul smell that newly-designed paper mill produced generally is to feed in the alkali recovery boiler to burn, the present general fuel gas bleeding device of lighting a fire automatically, as the coke-stove gas bleeding device, Bleeding Device of Blast Furnace Gas etc., its principle is the gas that needs diffuse to be transported to light a fire on the torch that diffuses the cat head end and burn, be characterized in the anti-blast cap of torch nozzle, lighting a fire, light earlier and accompany the burner that burns gas, the flame that burns gas with the companion removes to light the coke-stove gas or the blast furnace gas of emitting from trunk line again, burn in the anti-blast cap mouth of torch tube and the sky and diffuse, its needed air that burns is to provide by natural air supply mode (anti-blast cap bottom negative pressure sucks air).
Handle paper mill slurrying foul smell following requirement arranged:
The calorific capacity of 1 foul smell itself is very low, and separated ignition and burning all are difficult to carry out, and must whole process accompany burning;
2 in order to guarantee that foul smell lights a fire in the hazardous chemical maximal tolerance dose or below the concentration (LD0 or LC0) and burn, and guarantee the burn-off rate of foul smell, must igniting and burning in the combustion chamber of sealing, and guarantee that the foul smell afterburnt discharges again.
If adopt above-mentioned technical finesse paper mill slurrying foul smell to have following problem:
1 igniting and burning are to carry out under the environmental condition of an opening, and can not guarantee that slurrying foul smell in paper mill does not run emits leakage;
2 burnings are to carry out under open environmental condition, can not carry out temperature control, are difficult to guarantee that foul smell fully burns;
3 its natural air supply mode inconvenience are regulated and the needed air capacity of tissue burning, are difficult to guarantee the burn-off rate of paper mill slurrying foul smell;
4 its Open architecture are subjected to such environmental effects big, are difficult to guarantee the burning of stability and safety.Above-mentioned thus technology is not suitable for handles paper mill slurrying foul smell.
Summary of the invention
At above-mentioned existing problems, the purpose of this utility model is to provide a kind of device that is used to handle the foul smell burning disposal of paper mill slurrying foul smell, to achieve these goals, its technical solution is: a kind of incinerator of handling paper mill slurrying foul smell, incinerator is by the cylindrical shell combustion system, supporting frame, blower fan, air channel and pipeline and valve are formed, cylindrical shell is made of inner barrel and outer cylinder body, inner barrel and outer cylinder body form sandwich-like, be provided with deflector in the interlayer, deflector connects inner barrel and outer cylinder body, combustion system is made of main burner and foul smell burner, main burner and foul smell burner are connected the cylindrical shell bottom by flange, main burner is located at cylindrical shell bottom centre, the main burner spout vertically upward, the foul smell burner is arranged around being positioned at main burner ringwise, equally distributed nozzle is set on the foul smell burner, the foul smell burner is more than the circle, start-up burner, combustion-supporting rifle is arranged on the cylindrical shell by flange respectively, the combustion air air channel is connected on the cylinder body outer wall and connects with the interlayer of cylindrical shell, the main burner air channel is connected on the main burner, be provided with even distribution evagination combustion air spout more than one deck at cylinder inboard wall, the combustion air spout is along the cylinder inboard wall circumferential directions, and cylindrical shell is installed in alkali recovery boiler top by the frame supports vertical fixing.
Be provided with on the described foul smell burner and form 0-90 degree angle between equally distributed nozzle and the main burner spout.
Be provided with on the described foul smell burner along the equally distributed nozzle of circumference and between and main burner spout tangential, form 0-90 degree angle along circumference.
Form 0-90 degree angle between the described evagination combustion air spout cylindrical shell vertical direction.
Described main burner is wherein a kind of of liquid-fuel burner or gaseous fuel burners.
Owing to adopted above technical scheme, the cylindrical shell (combustion chamber) that the utility model is handled the incinerator of paper mill slurrying foul smell adopts sandwich, separate with moving air between inner core and urceolus, cylindrical shell has enough internal capacities, and around the cylindrical shell and lower end is all isolated with environment; The assurance foul smell stops time enough and abundant after-flame therein, for reasonably tissue burning, be provided with companion's fuel burning main burner in the cylindrical shell bottom, be respectively equipped with start-up burner and booster burners in the cylindrical shell lower side, all burning required airs all adopt air blast to carry out air feed, and main burner adopts vortex burner, and the foul smell nozzle ring is around main burner, and angled with the main burner axis, be beneficial to foul smell and fully mix, burn with flame; For the ease of lighting a fire and monitoring, control combustion conditions, also be provided with flame detector, thermocouple on the cylindrical shell, start-up burner is provided with high-energy igniter, and blower fan adopts air door to regulate actuator or frequency converter carries out the air quantity adjusting, and control is automatically all adopted in the igniting of package unit and operation; Cylindrical shell is arranged vertically in the boiler top, and upper port open discharge flue gas when foul smell need burn, starts this foul smell incinerator, lights a fire earlier: high-energy igniter sparking firing point ignition combustor, start-up burner flame ignition main burner.Behind flameholding, chamber temperature drops into foul smell again and burns after arriving setting value, and the foul smell needed air that burns is provided; In the time of staying, can guarantee the abundant after-flame of foul smell at range of set temperature and enough foul smell, and the igniting of foul smell and burning overall process all with the isolated combustion chamber of environment in carry out.The apparatus structure of foul smell burning disposal of the present utility model is reasonable, use easy to operate, can with the supporting use of alkali recovery boiler, use the slurrying foul smell in burning disposal paper mill also can be when the alkali recovery boiler is stopped transport for a long time separately.Also can be widely used in the processing of other similar harmful exhaust.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the side view of Fig. 1
The specific embodiment
Below in conjunction with drawings and Examples foul smell incinerator of the present utility model is described in further detail.
See accompanying drawing
A kind of incinerator of handling paper mill slurrying foul smell, incinerator is by cylindrical shell 1, combustion system, supporting frame, blower fan, air channel and pipeline and valve are formed, and the main equipment of foul smell incinerator---cylindrical shell 1 is a double-jacket formula insulated combustion chamber, and cylindrical shell 1 is arranged vertically on alkali furnace roof portion Vierendeel girder by frame supports.Main burner 12 is arranged in cylindrical shell 1 bottom centre, and foul smell burner 9 is arranged in around the cylindrical shell 1 bottom main burner 12.The frame supports that cylindrical shell 1 is made up of column 6 and main beam 5 etc., supporting frame firmly is connected with alkali furnace roof portion Vierendeel girder.Cylindrical shell 1 is in alkali stove roof with interior part, and outer surface is provided with heat-insulation layer 7, the outsourcing galvanized iron sheet.On supporting frame, be furnished with inspection platform 16 and staircase.Leak in order to prevent to wear the top portion rainwater outside the roof on cylindrical shell 1 top, is provided with rainhat 4 at cylindrical shell 1 near the position on roof, the roof retaining ring is set below the rainhat 4, can guarantee that rainwater does not enter in the alkali recovery boiler room.Cylindrical shell 1 is made of inner barrel and outer cylinder body, inner barrel and outer cylinder body form sandwich-like, inner barrel adopts heat-resisting steel sheet and plate to make, inner barrel and bottom side towards the fire are laid with heat-resistant antifriction and water material feeding 3, outer cylinder body adopts stainless-steel sheet to make, be provided with deflector in the interlayer, deflector connects inner barrel and outer cylinder body, and forms the passage of combustion air air.
Combustion system is by main burner 12, start-up burner 14, combustion-supporting rifle 15 and foul smell burner 9 constitute, main burner 12 and foul smell burner 9 are connected cylindrical shell 1 bottom by flange, main burner 12 is located at cylindrical shell 1 bottom centre, the spout of main burner 12 vertically upward, foul smell burner 9 arranges around being positioned at main burner 12 ringwise, described main burner 12 adopts wherein a kind of of diesel fuel burners or neat gas burner.Equally distributed nozzle is set on the foul smell burner 9, according to the burning design, be provided with on the foul smell burner 9 and form 0-90 degree angle between equally distributed nozzle and main burner 12 spouts, foul smell burner 9 is more than a circle or encloses, and is provided with on the foul smell burner 9 along the equally distributed nozzle of circumference and forms 0-90 degree angle between and main burner spout tangential along circumference.
Start-up burner 14, combustion-supporting rifle 15 is separately positioned in the cylindrical shell 1, and combustion-supporting rifle 15 is positioned at start-up burner 14 tops, and start-up burner 14 is made up of torch oil gun (or natural air gun), igniter, flame detector etc.Parallel with burning torch be contained in the conduit torch oil gun (or natural air gun) during design, be fixed on the cylindrical shell 1, light the fuel oil (or natural gas) of torch oil gun (or natural air gun) ejection during igniting by high-energy igniter with flange.The flame of start-up burner 14 is by independent flame detector output flare up fire.Start-up burner 14 also can be used as altar lamp and uses, with smooth combustion.
Combustion air air channel 10 is connected on cylindrical shell 1 outer wall and connects with the interlayer of cylindrical shell 1, main burner air channel 11 is connected on the main burner 12, according to the burning design, be provided with one or more layers of even distribution evagination combustion air spout 2 at cylindrical shell 1 inwall, combustion air spout 2 is along cylindrical shell 1 inwall circumferential directions, according to the burning design, form 0-90 degree angle between evagination combustion air spout 2 and cylindrical shell 1 vertical direction.
Cylindrical shell 1 is installed in alkali recovery boiler top by the frame supports vertical fixing.Framework adopts all steel shelf structure, forms a frame system by column 6, main beam 5, crossbeam 8, diagonal brace.Adopt between column 6, main beam 5, crossbeam 8, the diagonal brace and be welded to connect.Four root posts 6 stand on the steelframe crossbeam of alkali recovery boiler top, on column 6 tops and the middle part arrange two to three beam, its middle and upper part is all wt of main beam 5 carrying cylindrical shells 1, main beam 5 is provided with stopping means, restriction cylindrical shell 1 moving in the horizontal direction.Arrange diagonal brace between column 6 and crossbeam, whole framework welding back forms an integral body, mainly bears horizontal loading.Establish inspection platform 16 as required in periphery, framework middle part.The support that crossbeam 8 can be used as outside landing beam and the post welds as main frame, and shaped steel is laid Turbogrid plates as connector on the platform, and the bearing capacity of grid is 200kg/m
2
Because cylindrical shell 1 upper end is opened wide, so drainage arrangement is arranged at the air register bottom of main burner 12, rainwater can enter from cylindrical shell 1 upper end exhanst gas outlet, and the osculum bottom the air register of main burner 12 flows into drainage pipeline.
Pipe-line system comprises main fuel (or natural gas) pipeline, main purge steam pipeline, foul smell pipeline etc.The total fuel pipe and the pipeline that always purges steam respectively are divided into three branch roads again, article one, be main burner 12 oil (or natural gas) pipeline and the pipeline that purges steam, article one, be start-up burner 14 oil (or natural gas) pipeline and the pipeline that purges steam, another is the pipeline of combustion-supporting oil gun 15 and the pipeline that purges steam.Bye-pass is provided with stop valve, pneumatic fast valve, check-valves etc.On total fuel pipe, also be provided with stop valve, pneumatic fast valve, electric control valve, check-valves, flowmeter, Pressure gauge, thermometer, pressure alarm switch etc., the foul smell pipeline is provided with spark arrester, Pressure gauge etc., to guarantee safety, the stable operation of oil (or natural gas) combustion system.
Incinerator of the present utility model adopts and blasts the formula air feed, and air blast links to each other with main burner air channel 11 with combustion air air channel 10 by the pants pipe.Blower fan is furnished with vibration abatement, and air quantity automatically adjusts by frequency converter or air door actuator according to combustion conditions.Combustion air air channel 10 is connected on cylindrical shell 1 outer wall and connects with the interlayer of cylindrical shell 1, and main burner air channel 11 is connected on the main burner 12, enters cylindrical shell 1 inside and outside wall interlayer and sprays at a high speed as the combustion-supporting air port that combustion air is uniformly distributed along the circumference more than two-layer.The controllable register air door of regulating air quantity all is equipped with in two groups of air channels, all can carry out air quantity and regulate separately.Also draw one tunnel air distribution for start-up burner 14 on the main burner air channel 11, start-up burner 14 is provided with the air quantity manual regulating device, can carry out independent point of adjustment ignition combustor air quantity.Total blast volume is regulated by fan frequency converter or air door actuator.For the ease of lighting a fire and monitoring, control combustion conditions, also be provided with peephole 13, flame detector, thermocouple on the cylindrical shell 1, start-up burner is provided with high-energy igniter, blower fan adopts air door to regulate actuator or frequency converter carries out the air quantity adjusting, and control is automatically all adopted in the igniting of package unit and operation.
The foul smell incinerator adopts PLC control (also can all be controlled by boiler DCS), and the cabinet of field control simultaneously has manually, automatic, DCS control mode, and manual/DCS control change-over switch is on switch board; Adopt bus mode to carry out communication between PLC and the DCS system; And in boiler DCS system, can show and control.
Burning control procedure: when foul smell is prepared to diffuse, sent by DCS and allow to start foul smell incinerator signal, diesel oil (or natural gas) pressure, flow are normal simultaneously, open blower fan earlier, adjust air quantity, the starting ignition program is sent main flame ignition signal when the inspection of main flame fire, feeds back by temperature, adjust fuel pressure, air quantity and the combustion-supporting oil gun of start and stop and control chamber temperature at setting range, chamber temperature arrives, and drops into the foul smell burning, finishes the ignition process.The loss of ignition signal is sent in inspection as fire, carries out lighting a fire once more behind the furnace purge, up to lighting a fire successfully.
Flame-out process: low or DCS sends flame-out request when fuel pressure, closes foul smell, starts flame-out program, and---blowing-out machine---steam off blow down valve---is finished flame-out process less than 90 ℃ when the temperature sensor displays temperature.
Usually drain valve is opened, during burning drain valve is closed.
Adjustment process: the air quantity of air blast automatically adjusts by frequency converter or air door actuator according to chamber temperature; Fuel pressure also is to automatically adjust by pneumatic control valve according to chamber temperature.
Presentation Function: whole ignition process, comprising light a fire successfully/failure signal, fan operation state, fan trouble, fuel pressure signal, fuel oil temperature signal, pneumatic control valve position signalling, chamber temperature signal, all valve state signals and control signal can show on IGNITION CONTROL master cabinet panel, can communication show on the CRT picture that also operating personnel only need just can know the combustion in situ operating mode in the control room to the DCS system.
Warning function: low when combustion process intermediate fuel oil pressure, when the combustion chamber does not have fire, or the combustion chamber is when overtemperature etc. occurring and jeopardizing safe operating mode, and system sends alarm signal; the staff can start flame-out program immediately; fuel shutoff is adjusted air quantity, with protection equipment and personal safety.
Claims (5)
1. incinerator of handling paper mill slurrying foul smell, comprise cylindrical shell (1) combustion system, supporting frame, blower fan, air channel and pipeline and valve, it is characterized in that: cylindrical shell (1) is made of inner barrel and outer cylinder body, inner barrel and outer cylinder body form sandwich-like, be provided with deflector in the interlayer, deflector connects inner barrel and outer cylinder body, combustion system is by main burner (12), start-up burner (14), combustion-supporting rifle (15) and foul smell burner (9) constitute, main burner (12) and foul smell burner (9) are connected cylindrical shell (1) bottom by flange, main burner (12) is located at cylindrical shell (1) bottom centre, the spout of main burner (12) vertically upward, foul smell burner (9) is positioned at main burner (12) and arranges ringwise on every side, the foul smell burner is provided with equally distributed nozzle on (9), foul smell burner (9) is more than the circle, start-up burner (14), combustion-supporting rifle (15) is arranged on the cylindrical shell (1) by flange respectively, combustion air air channel (10) is connected on cylindrical shell (1) outer wall and connects with the interlayer of cylindrical shell (1), main burner air channel (11) is connected on the main burner (12), be provided with even distribution evagination combustion air spout (2) more than one deck at cylindrical shell (1) inwall, combustion air spout (2) is along cylindrical shell (1) inwall circumferential directions, and cylindrical shell (1) is installed in alkali recovery boiler top by the frame supports vertical fixing.
2. a kind of incinerator of handling paper mill slurrying foul smell according to claim 1 is characterized in that: be provided with on the described foul smell burner (9) and form 0-90 degree angle between equally distributed nozzle and main burner (12) spout.
3. a kind of incinerator of handling paper mill slurrying foul smell according to claim 1 is characterized in that: be provided with on the described foul smell burner (9) along the equally distributed nozzle of circumference and form 0-90 degree angle between and main burner (12) spout tangential along circumference.
4. a kind of incinerator of handling paper mill slurrying foul smell according to claim 1 is characterized in that: form 0-90 degree angle between described evagination combustion air spout (2) cylindrical shell (1) vertical direction.
5. a kind of incinerator of handling paper mill slurrying foul smell according to claim 1 is characterized in that: described main burner (12) is wherein a kind of for liquid-fuel burner or gaseous fuel burners.
Priority Applications (1)
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CN2010205094854U CN201819229U (en) | 2010-08-30 | 2010-08-30 | Incineration device for treating pulping odor of paper mill |
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CN2010205094854U CN201819229U (en) | 2010-08-30 | 2010-08-30 | Incineration device for treating pulping odor of paper mill |
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CN2010205094854U Expired - Fee Related CN201819229U (en) | 2010-08-30 | 2010-08-30 | Incineration device for treating pulping odor of paper mill |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101943414A (en) * | 2010-08-30 | 2011-01-12 | 武汉诚信锅炉自控设备有限责任公司 | Incinerator for processing pulping foul gas in paper mills |
CN102954467A (en) * | 2012-11-21 | 2013-03-06 | 中国寰球工程公司辽宁分公司 | Gas burner |
CN103851621A (en) * | 2014-03-11 | 2014-06-11 | 徐秋苹 | Automatic fire-controlled combustor |
CN105402743A (en) * | 2015-10-27 | 2016-03-16 | 西南石油大学 | Vehicle-mounted movable type fuel gas discharging device |
CN105698198A (en) * | 2016-03-15 | 2016-06-22 | 烟台宝钢钢管有限责任公司 | Waste gas treatment device and treatment method of coal gas generator |
-
2010
- 2010-08-30 CN CN2010205094854U patent/CN201819229U/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101943414A (en) * | 2010-08-30 | 2011-01-12 | 武汉诚信锅炉自控设备有限责任公司 | Incinerator for processing pulping foul gas in paper mills |
CN102954467A (en) * | 2012-11-21 | 2013-03-06 | 中国寰球工程公司辽宁分公司 | Gas burner |
CN102954467B (en) * | 2012-11-21 | 2015-04-29 | 中国寰球工程公司辽宁分公司 | Gas burner |
CN103851621A (en) * | 2014-03-11 | 2014-06-11 | 徐秋苹 | Automatic fire-controlled combustor |
CN105402743A (en) * | 2015-10-27 | 2016-03-16 | 西南石油大学 | Vehicle-mounted movable type fuel gas discharging device |
CN105698198A (en) * | 2016-03-15 | 2016-06-22 | 烟台宝钢钢管有限责任公司 | Waste gas treatment device and treatment method of coal gas generator |
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Granted publication date: 20110504 Termination date: 20130830 |