CN203200293U - Converter gas compound purification equipment - Google Patents
Converter gas compound purification equipment Download PDFInfo
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- CN203200293U CN203200293U CN2013200612704U CN201320061270U CN203200293U CN 203200293 U CN203200293 U CN 203200293U CN 2013200612704 U CN2013200612704 U CN 2013200612704U CN 201320061270 U CN201320061270 U CN 201320061270U CN 203200293 U CN203200293 U CN 203200293U
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Abstract
The utility model provides converter gas compound purification equipment. The converter gas compound purification equipment is formed by a vaporizing cooler, a ceramic multi-tube dust cleaner, a ceramic filtering membrane filter, a speed-adjusting type axial flow fan, a diffusion chimney and a switching valve, wherein the ceramic multi-tube dust cleaner and the ceramic filtering membrane filter are taken as key equipment; a manufacturing material of a dust-cleaning unit is special ceramic which can resist high-temperature oxidation and corrosion, has a small coefficient of thermal expansion and has the service life longer than four years; the dust content of flue gas can be directly reduced to be lower than 10mg/Nm<3> at 300-600 DEG C, and then the gas can be supplied to a user. Compared with an electrostatic dust collector, the converter gas compound purification equipment is free of a water circulating system, improves the sensible heat and the chemical heat of gas, saves investment, is safe and reliable and is an international innovative product.
Description
Technical field
The utility model relates to a kind of refining plant that can carry out dust removal process to 300 ℃-600 ℃ coal gas of high temperature, exactly is a kind of coal gas of converter composite purification equipment.
Background technology
National requirements for environmental protection is from July 1st, 2010, and newly-built enterprise is from the standard implementation, and steel industry, atmosphere pollutants emission standards: 1. the agglomerating plant dust exhausting concentration is 50 ㎎/Nm3; 2. other equipment dust exhausting concentrations are 30 ㎎/Nm3; 3. require energy-saving and cost-reducing.
When the converter steelmaking oxygen blast was smelted, molten iron generated coal gas with being blown into oxygen generation chemical reaction in the stove, and main component is CO, and exhaust gas volumn is 570m
3/ (mark)/(h.t steel), temperature is up to 1450-1500 ℃; Produce a large amount of stove dirt simultaneously, dustiness is 80-150g/Nm3, and main component is FeO and Fe
2O
3Air combustion coefficient-α=0.1, the coal-gas recovering amount is not less than 80m3/t.Dust is than great during unburn, coarse size, particle diameter less than the dust of 10 μ m only less than 10%.
At present, the method that the oxygen coverter coal gas dust removal reclaims mainly contains two kinds: a kind of is wet method (OG) dedusting, safe and reliable to operation, but water loss is big, causes secondary pollution, and the wastewater treatment expense increases; Second kind is dry method (LT) dedusting, adopts high-voltage electrostatic dust separator, does not need wastewater treatment and device for dehydrating sladge waste, and efficiency of dust collection is higher, but the existence of static sparking and oxygen is very easily blasted.Above-mentioned two kinds of methods all need with water-cooled flue-gas temperature to be reduced to about 100 degree, and are very serious to the sensible heat waste of flue gas.
Because at high temperature the coal gas viscous force is bigger, the high humidity amplitude descends, fine dust cohesive force reduces, big to the fine dust separating difficulty, mainly be the industrial problems such as material, structure formation and thermal expansion of the dust removal installation that adopts under the high temperature, directly influence effectively normal operation of dust removal installation, therefore the gas-solid isolation technique is that present difficulty is higher under hot conditions, and is again the scientific research project that needs to be resolved hurrily.
Coal gas of high temperature, flue gas ash removal mainly use metal tornado dust collector and metal multi-tube dust cleaner both at home and abroad at present, because metallic substance increases oxidation aggravation, high temperature corrosion aggravation with temperature, a large amount of scientific research and testing result show both at home and abroad: it is about 450 ℃ that maximum value appears in metallic substance erosion rate, and raise with high temperature, turnover rate increases; Because of the alloy oxidation rate with temperature increase and the erosive wear of very fast increase metal, at high temperature operation life is extremely short to cause dust removing units in the metal dusting equipment, particularly dust removal installation.Though the research history in year does not have industrialization so far surplus the developed countries existing 20, had a strong impact on and saved energy and reduce the cost, be the high-tech research and development program element that needs to be resolved hurrily.
In sum, need design a kind of dry method coal gas of high temperature, flue gas purifying technique and equipment at present.Dedusting and desulfurization under the temperature that does not reduce coal gas of high temperature take full advantage of gas heat and chemical heat.But because at high temperature the coal gas viscous force is bigger, the high humidity amplitude descends, fine dust cohesive force reduces, big to the fine dust separating difficulty, mainly be the industrial problems such as material, structure formation and thermal expansion of the dust removal installation that adopts under the high temperature, directly influence effectively normal operation of dust removal installation, therefore the gas-solid isolation technique is that present difficulty is higher under hot conditions, and be again the scientific research project that needs to be resolved hurrily, be a present domestic and international cross-centennial difficult problem, solution is not arranged so far.
The utility model content
The purpose of this utility model has provided a kind of coal gas of converter composite purification equipment, and it is the suite of equipment of high-temperature gas duster and UTILIZATION OF VESIDUAL HEAT IN.It is connected and composed by evaporative cooler, modified version ceramic multicyclone dust collector and ceramic filter film filter.The utility model patent is a kind of complete equipment that is combined into of converter coal gas purification UTILIZATION OF VESIDUAL HEAT IN, after coal gas at first enters evaporative cooler cooling and thick dedusting, enter modified version ceramic multicyclone dust collector (single-stage or twin-stage) and carry out pre-dedusting, entering ceramic filter film filter " essence " again filters, dust dust exhausting concentration＜10 ㎎/Nm3 after the filtration enters overbottom pressure/UTILIZATION OF VESIDUAL HEAT IN then.It relates to the udst separation of coal gas of high temperature＜600 ℃, and its filtering unit can normally move more than 4 years dust exhausting concentration＜10 ㎎/Nm3 effectively.
The purpose of this utility model is achieved through the following technical solutions: coal gas of converter composite purification equipment, mainly by evaporative cooler, the first modified version ceramic multicyclone dust collector, the second modified version ceramic multicyclone dust collector, ceramic filter film filter, speed adjustable type aerofoil fan, coal gas switching station with diffuse chimney and constitute; Wherein key equipment is the first modified version ceramic multicyclone dust collector and the second modified version ceramic multicyclone dust collector and ceramic filter film filter; The dust removing units of the first modified version ceramic multicyclone dust collector and the second modified version ceramic multicyclone dust collector is respectively Dg250, Dg160, and the two-stage series connection efficiency of dust collection reaches 96%; It is " pre-dedusting "; After " the pre-dedusting of coal gas ", again by the ceramic filter membrane filtration, purification, it is " smart dedusting ", and final dust exhausting concentration＜10 ㎎/Nm3 uses for the user.
For further realizing the purpose of this utility model, can also realize by the following technical solutions: the dust removing units shape and structure in the described first modified version ceramic multicyclone dust collector and the second modified version ceramic multicyclone dust collector is identical, and its structure is as follows: formed and be made as one by airway (17), guider (18) and whirlwind (19); Dust removing units adopts the mode of serial or parallel connection to arrange in casing, fills a vacancy with perlite between whirlwind, seals with luminite cement above the perlite; Guider is connected and composed by straight tube (a), screw-blade (b) assembly and cylindrical drum (c); The top of cylindrical drum is provided with at least three V-type openings; The screw-blade assembly is installed in the cylindrical drum, and the screw-blade assembly has three blades at least; The external diameter of screw-blade assembly and the internal diameter of cylindrical drum closely cooperate; In the screw-blade assembly, straight tube is installed, the internal diameter of the external diameter of straight tube and screw-blade assembly closely cooperates; The inwall of V-type opening, cylindrical drum, the outer wall of straight tube and screw-blade assembly link together, and constitute the guiding qi in spirality hole; The lower end of cylindrical drum is connected with the upper end of whirlwind; Cylindrical drum lower surface seat is contained in the sub-upper surface of whirlwind, and the gap between its both ends of the surface closely cooperates, and is coated with pyroceramic binding agent bonding between the both ends of the surface, and the gap of both ends of the surface border is provided with the sealing of high-temperature cement sealing ply; The upper end of straight tube is connected with the lower end of airway; On the face of tapering rim of the mouth, be coated with the pyroceramic binding agent, be bonded together, form the ceramic dust removing units of one.The casing bolster adopts the t5mm steel plate, goes here and there wind each other for preventing the sub-lower end of whirlwind, and whirlwind lower surface design has the straight tube of Ф 80*60mm, can be varying sized according to actual condition.Described screw-blade is 4, and the angle of described screw-blade and guider axis is 30 °, can change according to requirement of actual working condition.Described guider lower surface seat is contained in the sub-upper surface of whirlwind, and face overlaps with lower seal layer center line with the gap of face, plays sealing function, and it is to be made by the luminite cement compound, and its thickness d is 40mm; Lower seal layer and last sealing ply constitute the air inlet distribution chamber, and coal gas is through the sub-centrifugal dust-removing of whirlwind, and coal dust falls within the ash bucket Purge gas and enters the ceramic filter fly-ash separator again and carry out " the smart filtration ", final dust exhausting concentration＜10 ㎎/Nm3.Increase in the material of the described first modified version ceramic multicyclone dust collector (8) and the second modified version ceramic multicyclone dust collector (9) and ceramic filter film filter (10) glass fibre is arranged, diatomite and pearlstone fine powder, wherein diatomite and pearlstone fine powder account for 15% weight.Described ceramic filter membrane filter unit is as strut member by filter mantle, coiling diameter is that 2.5mm aluminum silicate fiber rope is as filtering membrane on the filter mantle cylindrical, or adopt other films as filtering membrane according to operating mode, or directly suit pure aluminium silicate cloth bag as filtering membrane.Described filter mantle top is out round tube hole, and the aperture is Φ 80-Φ 125, and length is 1.5m-4m, and wall thickness is δ=10mm.The straight tube lower end is airtight end face and establishes pilot hole.Dust removing units in the described first modified version ceramic multicyclone dust collector and the second modified version ceramic multicyclone dust collector is to adopt high grade clay and ceramic, by the compression moulding of purposes batching, at high temperature sintering forms, high temperature oxidation resisting and corrosion, the hardness height, wear-resistant.Described high grade clay is kaolin; Described ceramic is mullite, aluminum oxide or silicon-dioxide etc.
The beneficial effects of the utility model are: it is the complete equipment that is combined into of a kind of coal gas of high temperature, producer gas generator coal gas, coal gas of converter, furnace of calcium carbide coal gas and other high-temperature flue gas purifications and UTILIZATION OF VESIDUAL HEAT IN.Technical requirements: 1, recovery sensible heat of converter coal gas as much as possible, avoid as far as possible or reduce equipment corrosion and wearing and tearing.2, reclaim potential chemical heat as far as possible, reduce the reignition of CO as far as possible, adopt and do not fire method and dry method dust, but reclaim coal gas at high proportion.3, gas purification should reach environmental requirement, and coal gas purity reaches utilizes requirement.4, except reclaiming heat and coal gas, and the iron powder recycling in the recovery flue dust.The converter stock gas is after the movable skirt cover of furnace roof captures, enter fixedly petticoat pipe, behind gasification cooling petticoat pipe, temperature reduces 800-1000 ℃ by 1450-1500 ℃, enter evaporative cooler again, through spray cooling, flue-gas temperature is chilled between 300 ℃-600 ℃, so as to changing the mechanical property of fusion or semi-melting state flue dust, make it become discrete particle and fall into the liquid packing discharge, and extinguish naked light in the flue gas, prevent that high-temperature smoke is to erosion and the obstruction of back level equipment, and avoid it to stick to being difficult to deashing on the ceramic multicyclone dust collector, flue gas after cooling and the thick dedusting enters one-level Dg250 ceramic multicyclone dust collector again and removes thick dirt, enter secondary Dg160 ceramic multicyclone dust collector again, behind above two-stage ceramic multicyclone dust collector " pre-dedusting ", dust concentration in the coal gas＜200 ㎎/Nm3, again via the ceramic filter film filter, it becomes Depth Filtration " meticulous " surface filtration, filters the dust concentration＜10 ㎎/Nm3 in the coal gas of back, can directly enter user's burning etc. of generating electricity, the coal gas dry-method dedusting reaches a high temperature, save investment, improve gas heat, increase energy-saving effect.The utlity model has compactness simple for structure, advantage cheap for manufacturing cost and easy to use.
Description of drawings
Fig. 1 is the structural representation of coal gas of converter composite purification equipment described in the utility model; Fig. 2 is the structural representation of the whirlwind pottery dust removing units of described ceramic modified version ceramic multicyclone dust collector; Fig. 3 is the structural representation of the filtering unit of described ceramic filter film filter.
Reference numeral: the 1 movable skirt cover 3 of converter 2 is petticoat pipe 4 gasification cooling hood 5 devaporizer 6 water tank 7 steamdrum 8 first improved ceramic multi-tube dust cleaner 9 second improved ceramic multi-tube dust cleaner 10 ceramic filter film filter 11 speed-regulating type axial flow blower 12 silencer 13 transfer valve 14 glasses valve 15 diffusing chimney 16 user's 17 wireway 18 guider 19 Whirlwind cyclone 20 sealant 21 locating hole 22 hole for hoist a straight tube b helical blade c cylindrical drum d short tube A filter mantle B filter membranes fixedly
Embodiment
Coal gas of converter composite purification equipment described in the utility model comprises that at least an evaporative cooler (5) and first modified version ceramic multicyclone dust collector (8) and the second modified version ceramic multicyclone dust collector (9), a ceramic filter film filter (10) form.Three grades of equipment effectively make up, and the coal gas of high temperature temperature is controlled under 300 ℃-600 ℃, directly adopts the udst separation of LT method, and dust exhausting concentration reaches 10mg/Nm3.
As shown in Figure 1, several whirlwind pottery dust removing units are installed in the casing of the first modified version ceramic multicyclone dust collector (8).As shown in Figure 2, each whirlwind pottery dust removing units is connected and composed by whirlwind (19), guider (18) and airway (17).Guider (18) is connected and composed by straight tube (a), screw-blade assembly (b) and cylindrical drum (c).The top of cylindrical drum (c) is provided with several V-type openings.Screw-blade assembly (b) is installed in the cylindrical drum (c), and screw-blade assembly (b) has three blades at least.The internal diameter of the external diameter of screw-blade assembly (b) and cylindrical drum (c) closely cooperates.Straight tube (a) is installed in the screw-blade assembly (b), and the internal diameter of the external diameter of straight tube (a) and screw-blade assembly (b) closely cooperates.The outer wall of the inwall of V-type opening, cylindrical drum (c), straight tube (a) and screw-blade assembly (b) link together, and constitute the guiding qi in spirality hole.The lower end of cylindrical drum (c) is connected with the upper end of whirlwind (19).Cylindrical drum (c) lower surface seat is contained in whirlwind (19) upper surface, and the gap between its both ends of the surface closely cooperates, and is provided with the pyroceramic adhesive layer between both ends of the surface, and the gap of both ends of the surface border is provided with the sealing ply sealing.The upper end of straight tube (a) is connected with the lower end of airway (17).Fill perlite between whirlwind (19) of ceramic dust removing units in the casing, aspect as the lower seal layer, plays sealing function with the luminite cement sealing of 40mm on the perlite.Lower seal layer and last sealing ply constitute the air inlet distribution chamber, the coal gas that enters is assigned to each dust removing units and purifies, dust falls within ash bucket and discharges, clean gas enters the air guide chamber by airway, again through the precision processing of ceramic filter film filter, the air outlet of ceramic filter film filter (10) is connected by the inlet mouth of pipeline with speed adjustable type aerofoil fan (11), then by switching valve (13) with diffuse chimney (15) and be connected, be connected with the user by glasses valve (14) again.
Principle of work:
Coal gas of high temperature enters the air inlet distribution chamber through the inlet mouth of the first modified version ceramic multicyclone dust collector (8), and the air inlet distribution chamber is given all whirlwind pottery dust removing units with coal gas; Coal gas enters in whirlwind (19) via the guiding qi in spirality hole of each whirlwind pottery dust removing units, and dust falls along whirlwind (19) inwall, and the coal gas after the dedusting upwards enters discharge chamber through airway (17) and discharges.Coal gas filters the laggard micropore ceramic filter tube (A) of going into through filter membrane (B) in ceramic filter film filter (10), dust stays on filtering membrane (B), coal gas after the dedusting is upwards discharged through filter mantle (A), the coal gas that all filter mantles (A) enter enters speed adjustable type aerofoil fan (11),, burn and overbottom pressure cogeneration etc. by diffusing chimney (15) discharging or directly entering user (16) through speed adjustable type aerofoil fan (11).Described user (16) can be top pressure power generation internal combustion turbine, clean burn boiler, hotblast stove, process furnace or coke oven etc.
For improving dust removing effects, can install second a modified version ceramic multicyclone dust collector (9) additional.The structure of the second modified version ceramic multicyclone dust collector (9) is identical with the first modified version ceramic multicyclone dust collector (8).As shown in Figure 1, the air outlet of the first modified version ceramic multicyclone dust collector (8) communicates with the inlet mouth of the second modified version ceramic multicyclone dust collector (9), coal gas of high temperature enters earlier second modified version ceramic multicyclone dust collector (9) dedusting again after first modified version ceramic multicyclone dust collector (8) dedusting, the coal gas that the second modified version ceramic multicyclone dust collector (9) is discharged inputs to ceramic filter film filter (10) and carries out fine filtering.The first modified version ceramic multicyclone dust collector (8) can be Dg250 modified version ceramic multicyclone dust collector, and the second modified version ceramic multicyclone dust collector (9) can be the modified version ceramic multicyclone dust collector of Dg160.
After coal gas of high temperature at first enters evaporative cooler cooling and thick dedusting, through Dg250 and the pre-dedusting of Dg160 modified version ceramic multicyclone dust collector, particle efficiency of dust collection＞96% of 5-10 μ m is then through ceramic filter film filter " smart dedusting ", the gas content of 5 μ m＜5-10 ㎎/Nm3.
As shown in Figure 3, the filtering unit in the described ceramic filter film filter (10) is connected and composed by filter mantle (A) and filtering membrane (B).Filter mantle (A) substitutes the support wire of former cloth bag type dedusting as strut member.The periphery of filter mantle (A) is provided with filtering membrane (B).Filtering membrane (B) is by being wound in filter mantle (A) periphery, and diameter is the filtering membrane that the aluminum silicate fiber rope of 2.5mm constitutes.Filtering membrane (B) substitutes original cloth bag.Filter mantle (A) and filtering membrane (B) be anti-300 ℃-600 ℃ high temperature all, therefore, can handle long service life for a long time continuously to coal gas of high temperature.The filtering membrane strainer that filter mantle (A) and filtering membrane (B) are housed is called ceramic filter film filter (10).
For improving sealing effectiveness, as shown in Figure 2, described sealing ply 20 is to be made by the luminite cement compound, and its thickness d is 40mm.
Described whirlwind pottery dust removing units adopts serial or parallel connection in the casing of the first modified version ceramic multicyclone dust collector (8).
The casing bolster of the described first modified version ceramic multicyclone dust collector (8) adopts δ=5mm steel plate.As shown in Figure 2, go here and there wind each other for preventing whirlwind (19) lower end, the design of whirlwind (19) lower surface has the short tube (d) of Φ 80*60mm.
For ease of airway (17) and whirlwind (19) assembling and positioning, be simplified manufacturing technique and minimizing resistance simultaneously, described airway (17) lower end is processed with the tapering seam, and straight tube (a) upper end is provided with airway (17) and is connected seam accordingly.Airway (17) cooperates by two seams with straight tube (a), is provided with the pyroceramic adhesive layer between two seams; Be that airway (17) lower end is processed with the tapering seam, cooperate with the seam that is connected of guider (18) upper surface, be coated with the pyroceramic binding agent during assembling between two seams, compress, link together after the drying.Require airway, guider, the sub-assembling of whirlwind vertically not crooked, like this Zu He dust removing units do not leak out, the efficiency of dust collection height.
Described screw-blade assembly (b) is provided with 4 blades.Described screw-blade assembly (b) is 30 ° with the angle of the axis of guider (18).
As shown in Figure 3, manhole is offered in described filter mantle (A) upper end.The lower end of filter mantle (A) is airtight end face, and is provided with pilot hole 21.
The material of each component of described whirlwind pottery dust removing units is to adopt kaolin, mullite, aluminum oxide and silicon-dioxide, by the compression moulding of purposes batching, and the stupalith that forms of sintering at high temperature.Specifically: 1. whirlwind pottery dust removing units adopts high grade clay (kaolin) and ceramic, as mullite, aluminum oxide, silicon-dioxide etc., by the compression moulding of purposes batching, at high temperature sintering forms, high temperature oxidation resisting and corrosion, the hardness height, wear-resistant.2. for preventing the dust removing units fracture, increased glass dimension (20mm short fiber) in the manufactured materials, made finished product that certain elasticity be arranged, shock-resistant.3. for alleviating the weight of finished product, added about 15%(weight in the manufactured materials) light material, as diatomite and pearlstone fine powder.Dedusting before 2005 are applied to 2,400,000 tons of/year chains of Sha Gang-return of serve group backheat blower fan, at 300 ℃---600 ℃ (350 ℃-500 ℃ commonly used) are operational excellence down, characteristics are that high temperature oxidation resisting, high temperature corrosion, hardness height, life-span reached more than 4 years, through about two-stage ceramic multicyclone dust collector " pre-dedusting " dust exhausting concentration＜200 ㎎/Nm3.For high temperature " smart dedusting " has been laid firm foundations.
The specific requirement of the filtering unit of ceramic filter film filter
1, structure formation: 1. the external diameter 100mm-150mm of filter mantle (A), internal diameter 80mm-130mm, length 2-4M.Filter mantle (A) top is established perforate and is provided with 4 erection opening 22 at the place, top, and filter mantle (A) lower end trim is towards hole, the certain position of peripheral hardware.2. filter mantle (A) is a rigid trestle, and its open-work quantity＜50 orders to increase ventilation property, reduces running resistance.3. on the cylindrical of filter mantle (A) coiling diameter be 2.5 ㎜ aluminum silicate fiber ropes as filtering membrane, perhaps adopt other films according to operating mode, also direct suit pure aluminium silicate cloth bag.
2, main raw: high grade clay and ceramic, as materials such as aluminum oxide, silicon-dioxide, organic and inorganic staple fibre and expanding agents, fire by the compression moulding of purposes batching and to form.
3, processing requirement: 1. pre-dedusting can select for use the big tubule ceramic multicyclone dust collector series connection of twin-stage to use, and making the above dust efficiency of dust collection of 10 μ m is 96%, and resistance is about 1500pa.2. the micropore ceramic filter film filter is in order to reduce resistance, and the vitrified pipe micropore is at 50 μ m-100 μ m.3. adopt at filter mantle (A) external diameter and twine aluminum silicate fiber rope 1 to several layers, make rigidity pottery outside surface form network filtering, Depth Filtration is become surface filtration, can suitably reduce resistance, be conducive to anti-deashing.
Coal gas of high temperature described in the utility model (containing high-temperature smoke) purifies and UTILIZATION OF VESIDUAL HEAT IN.
The utility model to blast furnace gas (300 ℃) can be directly with direct UTILIZATION OF VESIDUAL HEAT IN (as advancing the process furnace burning) after twin-stage ceramic multicyclone dust collector or one-level ceramic multicyclone dust collector, the dedusting of secondary ceramic filter film filter, can increase the sensible heat utilization of 60 ℃ of higher temperature carriers.
The utility model patent by shown in Figure 1, is concatenated into straight line operation band, and can several operation bands in parallel.Coal gas of high temperature enters the ceramic filter film filter again and does " smart dedusting " after selecting twin-stage ceramic multicyclone dust collector " pre-dedusting " (efficiency of dust collection reaches 96%), requires dust dust exhausting concentration＜5-10 ㎎/Nm3 of＜5 μ m.
It is a cross-centennial innovative technology, is to solve the desirable new technology of high-temperature flue gas purification, and it certainly will create immeasurable contribution to energy-saving and emission-reduction, upgrading transition.
The utility model not technology contents of detailed description is known technology.
Claims (6)
1. coal gas of converter composite purification equipment is characterized in that: mainly by evaporative cooler (5), the first modified version ceramic multicyclone dust collector (8), the second modified version ceramic multicyclone dust collector (9), ceramic filter film filter (10), speed adjustable type aerofoil fan (11), coal gas switching station with diffuse chimney and constitute; Wherein key equipment is the first modified version ceramic multicyclone dust collector (8) and the second modified version ceramic multicyclone dust collector (9) and ceramic filter film filter (10); The dust removing units of the first modified version ceramic multicyclone dust collector (8) and the second modified version ceramic multicyclone dust collector (9) is respectively Dg250, Dg160, two-stage series connection.
2. coal gas of converter composite purification equipment according to claim 1, it is characterized in that: the dust removing units shape and structure in the described first modified version ceramic multicyclone dust collector (8) and the second modified version ceramic multicyclone dust collector (9) is identical, and its structure is as follows: formed and be made as one by airway (17), guider (18) and whirlwind (19); Dust removing units adopts the mode of serial or parallel connection to arrange in casing, and whirlwind is filled a vacancy with perlite between (19), seals with luminite cement above the perlite;
Guider (18) is connected and composed by straight tube (a), screw-blade assembly (b) and cylindrical drum (c); The top of cylindrical drum (c) is provided with at least three V-type openings; Screw-blade assembly (b) is installed in the cylindrical drum (c), and screw-blade assembly (b) has three blades at least; The internal diameter of the external diameter of screw-blade assembly (b) and cylindrical drum (c) closely cooperates; In the screw-blade assembly (b), straight tube (a) is installed, the internal diameter of the external diameter of straight tube (a) and screw-blade assembly (b) is closely joined; The outer wall of the inwall of V-type opening, cylindrical drum (c), straight tube (a) and screw-blade assembly (b) link together, and constitute the guiding qi in spirality hole; The lower end of cylindrical drum (c) is connected with the upper end of whirlwind (19); Cylindrical drum (c) lower surface seat is contained in whirlwind (19) upper surface, and the gap between its both ends of the surface closely cooperates, and is coated with pyroceramic binding agent bonding between the both ends of the surface, and the gap of both ends of the surface border is provided with the sealing of high-temperature cement sealing ply; The upper end of straight tube (a) is connected with the lower end of airway (17); On the face of tapering rim of the mouth, be coated with the pyroceramic binding agent, be bonded together, form the ceramic dust removing units of one, the casing bolster adopts the t5mm steel plate, goes here and there wind each other for preventing the sub-lower end of whirlwind, whirlwind lower surface design has the straight tube of Ф 80*60mm, can be varying sized according to actual condition.
3. coal gas of converter composite purification equipment according to claim 2, it is characterized in that: described screw-blade is 4, the angle of described screw-blade and guider axis is 30 °, can change according to requirement of actual working condition.
4. coal gas of converter composite purification equipment according to claim 2, it is characterized in that: described guider (18) lower surface seat is contained in whirlwind (19) upper surface, face overlaps with lower seal layer center line with the gap of face, play sealing function, it is to be made by the luminite cement compound, and its thickness d is 40mm; Lower seal layer and last sealing ply constitute the air inlet distribution chamber, and coal gas is through whirlwind (19) centrifugal dust-removing, and coal dust falls within the ash bucket Purge gas and enters the ceramic filter fly-ash separator again and carry out essence filtration.
5. coal gas of converter composite purification equipment according to claim 1, it is characterized in that: described ceramic filter membrane filter unit is as strut member by filter mantle, coiling diameter is that 2.5mm aluminum silicate fiber rope is as crossing filtering membrane on the filter mantle cylindrical, or adopt other films as filtering membrane according to operating mode, or directly suit pure aluminium silicate cloth bag as filtering membrane.
6. coal gas of converter composite purification equipment according to claim 5, it is characterized in that: described filter mantle top is out round tube hole, and the aperture is Φ 80-Φ 125, and length is 1.5m-4m, wall thickness is δ=10mm, and the straight tube lower end is airtight end face and establishes pilot hole.
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| CN2013200612704U CN203200293U (en) | 2013-02-04 | 2013-02-04 | Converter gas compound purification equipment |
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| CN2013200612704U CN203200293U (en) | 2013-02-04 | 2013-02-04 | Converter gas compound purification equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060515A (en) * | 2013-02-04 | 2013-04-24 | 济南环保陶瓷除尘技术研究所 | Composite purifying equipment of converter gas |
| CN114162790A (en) * | 2020-08-20 | 2022-03-11 | 中石化南京化工研究院有限公司 | Dust-removing heat-exchanging device, dust-removing heat-exchanging method of dust-containing high-temperature flue gas and method for preparing sulfuric acid from sulfur-containing waste |
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2013
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060515A (en) * | 2013-02-04 | 2013-04-24 | 济南环保陶瓷除尘技术研究所 | Composite purifying equipment of converter gas |
| CN114162790A (en) * | 2020-08-20 | 2022-03-11 | 中石化南京化工研究院有限公司 | Dust-removing heat-exchanging device, dust-removing heat-exchanging method of dust-containing high-temperature flue gas and method for preparing sulfuric acid from sulfur-containing waste |
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