CN104324602B - A kind of smoke exhaust pollution sources control device and process - Google Patents
A kind of smoke exhaust pollution sources control device and process Download PDFInfo
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- CN104324602B CN104324602B CN201410589187.3A CN201410589187A CN104324602B CN 104324602 B CN104324602 B CN 104324602B CN 201410589187 A CN201410589187 A CN 201410589187A CN 104324602 B CN104324602 B CN 104324602B
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Abstract
The present invention relates to a kind of smoke exhaust pollution sources control device and process, it is characterized in that: smoke exhaust pollution sources control device is cover body structure, by: high-temperature smoke exhaust plenum, pollution sources control room, smoke exhaust negative pressure drainage section, desulphurization system, skeleton and fixed connecting piece form. Smoke exhaust pollution sources control process, adopts following steps: in the time that smoke exhaust pollution sources control device is worked, weaken gradually in malleation the duty that negative pressure strengthens gradually; In high-temperature smoke exhaust plenum, taking rising buoyancy driving as main, it is auxiliary that negative pressure guiding drives; Generate magnesium sulfite and the magnesium sulfate containing the crystallization water by oxidation side reaction. The present invention can reduce high-temperature smoke EGT, removes low concentration SO contained in smoke exhaust2Deng acidic components, remove contained big dust particle in smoke exhaust, realize the pollutant such as solid or liquid particle has effectively been controlled, desulfuration efficiency >=95%, efficiency of dust collection >=90%.
Description
Technical field
The invention belongs to environmental protection technical field, is a kind of fume and exhaust gas purifying technology of prevention and control of air pollution, relates toOne is utilized pollution sources control room, can remove low concentration SO contained in smoke exhaust simultaneously2Solid Deng acidic components and bulky grainThe pollutant such as body or liquid particle, particularly a kind of smoke exhaust pollution sources control device and process.
Background technology
Fume and exhaust gas purifying system is mainly made up of partial exhaust gas cover, purifier, pipe-line system and ventilation blower etc., is orderThe front main and effective means of controlling that smoke exhaust is polluted. Partial exhaust gas cover is a kind of pollution sources control device, institute of the present inventionState the upgrading device that smoke exhaust pollution sources control device is traditional partial exhaust gas cover, device is by utilizing new and high technology to haveEffect is controlled and is taken dirt air-flow and weaken its dirt intensity, in avoiding the Pollutants Diffusion such as solid (or liquid) particle, makes cigaretteThe effective economical operation of dirt waste gas cleaning system. Coke oven is the capital equipment of coking industry coking process, owing to refining in nearly decadesIron process will, taking blast furnace process as main, will continue so coking is produced. For the pollution sources in coke side region, mainly result fromThe coke oven process of the discharging of the coke. The coal that packs coke furnace carbonization chamber into is smelt fervid red defocused through high-temperature retorting, by pusher machine in order from charcoalChange chamber and release, red Jiao of release is broken and is fallen quenching compartment (burnt tank) inner impact at combustion synthesis in air with from leading burnt grid,Fire door place, coke guide grid of coke guide and the coke of the process of the discharging of the coke fallen three, quenching compartment (burnt tank) coke pushing ring from coke guide grid of coke guideJoint produces volume of smoke waste gas, and the smoke exhaust quantity that red caustic per ton is sent out reaches more than 0.4kg. Pollution sources have: smoke exhaustTemperature is high, intermittently, paroxysmal and product dirt pits be along coke oven longitudinal to features such as frequent movements, mainly contains burnt dirt (particle) in waste gasAnd low concentration (is about 100mg/m3）SO2The pollutants such as gas. To the pollution sources control of three coke pushing links of the process of the discharging of the coke, externalNormal fixing partial exhaust gas cover and the mobile local hood two class hood trapping smoke exhaust of adopting. Wherein, fixing partial exhaust gasCover relative fixingly with other part of fume and exhaust gas purifying system, hood covers coke guide grid of coke guide outlet and coke quenching cartCompartment (burnt tank) mouthful, whole fume and exhaust gas purifying system is arranged on coke guide or is arranged on the traveling that same coke guide travels shoulder to shoulderOn equipment; Other part of mobile local hood and fume and exhaust gas purifying system is unfixing, and hood covers coke guideLead burnt grid outlet and carriage of coke quenching car (burnt tank) mouthful, hood is fixed on coke guide and moves with coke guide, and hood goes outThe control of dust gathering tube mobile link of mouth tube connector and pipe-line system, other part of fume and exhaust gas purifying system is fixed on groundOn face. Pollution sources controlling mechanism is: from the inner sucking-off high-temperature smoke of partial exhaust gas cover waste gas, make innerly carry and induce because of materialAir-flow and the zone of positive pressure that occurs becomes negative pressuren zone, controls and takes dirt air-flow and extrude from hood gap. Domestic above-mentioned except often adoptingOutside mobile local hood trapping smoke exhaust, also have the pollution sources of three coke pushing links of the process of the discharging of the coke are decomposed into two son dirtsDye source, that is: regard fire door place coke pushing link as pollution sources, coke guide grid of coke guide and coke are fallen and are put out from coke guide grid of coke guideTwo the coke pushing links in burnt compartment (burnt tank) are regarded another pollution sources as. The former adopts fixing partial exhaust gas cover trapping smoke exhaust,The latter adopts heat buoyancy gas skirt trapping smoke exhaust. The pollution sources controlling mechanism difference of the two, the former is in partial exhaust gas coverPortion's sucking-off high-temperature smoke waste gas, controls and takes dirt air-flow and extrude from hood gap, the latter by high-temperature smoke waste gas from itBuoyancy (instant heating induced draft) drives trapping smoke exhaust. Above-mentioned in the control to three coke pushing link pollution sources of the process of the discharging of the cokeIn, do not consider low concentration SO2Deng the control of acidic components, the main control of considering focusing dirt (particle). Partial exhaust gas cover,Ubiquity is poorly sealed, and especially coke guide grid of coke guide and fire door contact site (particularly bottom) cannot seal completely, causesPart smoke exhaust escapes; Trapping ability is not enough or inhomogeneous, causes some smoke exhaust from partial exhaust gas cover bottomThe space of edge and carriage of coke quenching car (coke tank truck tank mouth) top edge escapes; The physical dimension of partial exhaust gas cover and installation siteIt is improper to design, and causes the defects such as some smoke exhaust escapes. Strengthen capacity and differ and reach surely satisfied if depended merely onControl effect, and be uneconomic to whole fume and exhaust gas purifying system.
Summary of the invention
The present invention has overcome the defect of above-mentioned existence, and object is for the discharge of the coke pollution sources of three coke pushing links of process of coke ovenProblem, utilizes pollution sources control room, controls smoke exhaust with low energy consumption, little suction air volume, removes in smoke exhaust contained simultaneouslyLow concentration SO2Deng pollutants such as acidic components and bulky grain solid or liquid particles, realize control by sealing and structural designSystem is polluted requirement, and smoke exhaust pollution sources control device and the process of a kind of convenience, economy is provided.
Smoke exhaust pollution sources control device of the present invention and process content Description:
Smoke exhaust pollution sources control device of the present invention and process, is characterized in that: the control of smoke exhaust pollution sourcesDevice is cover body structure, by: high-temperature smoke exhaust plenum, pollution sources control room, smoke exhaust negative pressure drainage section, slurries sprayFacility and slurry spraying facility composition;
High-temperature smoke exhaust plenum is provided with from bottom to up successively: cube group air horn mouth, cube group air chamber cover bodyWith collection chamber rectangle adpting flange, the top of the lower edge of cube group air horn mouth and carriage of coke quenching car coke tank truck tank mouthEdge has space, and the lower edge of cube group air horn mouth covers compartment tank mouth;
Pollution sources control room is provided with from bottom to up successively: control room rectangle adpting flange, rectangle connect short tube, isolationCover body and control room upper outlet body in screen cloth, spherical reflecting curtain, control room cone section cover body, control room lower cover, control room, everyBe arranged on center in pollution sources control room from screen cloth, the screen cloth that isolation screen cloth is tubular construction, the top of screen cloth is circular shapeBottom is square, and the bottom of screen cloth is connected with cone section cover body bottom, control room, and top is connected with spherical reflecting curtain, isolation sievePollution sources control room is isolated into screen cloth inside and two regions of periphery by net and spherical reflecting curtain; Control room cone section cover body,In control room lower cover, control room, cover body is connected from bottom to up successively with control room upper outlet body, high-temperature smoke exhaust plenum withPollution sources control room, is connected with control room rectangle adpting flange by collection chamber rectangle adpting flange;
Smoke exhaust negative pressure drainage section is provided with from right to left successively: rectangle airflow-distribution board assembly, reducing pipe, rectangleWork pipeline section, rectangle straightener(stator) blade assembly and adpting flange; Rectangle airflow-distribution board assembly is arranged on reducing pipe double overInwall on, rectangle straightener(stator) blade assembly is arranged on the inwall of rectangle work pipeline section, the double over of reducing pipe and controlIn chamber, cover body is connected to cover body upper shed place in control room, is positioned at distributing on trace of smoke exhaust. Useless by being arranged on flue dustThe adpting flange in gas negative pressure drainage section left side is connected with the flange of fume and exhaust gas purifying pipe-line system;
Slurries spray facility and slurry spraying facility be arranged on control room upper outlet body above, connect by pipeline.
Adopt smoke exhaust pollution sources control device desulphurization technological process
Desulphurization system by: the desulfurizer slurry of being located at the desulfurizer slurry preparation subsystem on ground and being located at coke oven top is thrownPut subsystem composition, desulfurizer slurry preparation subsystem is provided with successively: desulfurizer powder storehouse, desulphurizing agent slurry formulating device and carryRise pump, connect by pipeline; Desulfurizer slurry is thrown in subsystem and is provided with successively: desulfurizer slurry tank, desulfurizer slurry addPump group, slurries spray facility and slurry spraying facility, connect by pipeline; Be located at the tube connector of desulfurizer slurry preparation subsystemRoad is connected with the desulfurizer slurry tank that desulfurizer slurry is thrown in subsystem, its process using following steps:
(1), in the time that smoke exhaust pollution sources control device is worked, smoke exhaust pollution sources control device is in malleation graduallyWeaken the duty that negative pressure strengthens gradually;
(2), in high-temperature smoke exhaust plenum, only have red Jiao to carry and thermal induction air-flow exists, make inner just appearancePress, fall burnt three, the tank in quenching compartment at fire door place, coke guide grid of coke guide and the coke of the process of the discharging of the coke from coke guide grid of coke guide and push awayThe high-temperature smoke waste gas that burnt link is discharged is that rising buoyancy malleation drives and fume and exhaust gas purifying by the thermal induction air-flow of selfThe negative pressure guiding of system drives, and high-temperature smoke waste gas is flow to hemispherical dome shape isolation screen cloth 6 interior zones by driving, at high temperature cigaretteDirt waste gas flows in hemispherical dome shape isolation screen cloth 6 interior zone processes, and taking rising buoyancy driving as main, negative pressure guiding drives and isAuxiliary;
(3), in pollution sources control room, by being located at the spray of the outer top of spherical reflecting curtain place desulfurizer slurry sprinkling facilitySpill, on hemispherical dome shape isolation screen cloth, form desulfurizer slurry water curtain; Desulfurizer slurry water curtain, isolates pollution sources control roomBecoming the balanced district of smoke exhaust heat energy is that screen cloth interior zone and elementary desulphurization reaction dedusting area are screen cloth neighboring area, flows to screen clothThe high-temperature smoke waste gas of interior zone, due to stopping and the expansion of overflow section of spherical reflecting curtain, its flow velocity and the flow directionAll there is change, flowed to screen cloth neighboring area by desulfurizer slurry water curtain;
(4), in elementary desulphurization reaction dedusting area, be provided with desulfurizer slurry atomization at upper outlet body inner surface place, control room and establishExecute, by desulfurizer slurry atomization. Smoke exhaust contacts with the desulfurizing agent being atomized with steam, obtains good desulfurization, dedustingEffect; Meanwhile, due to the washing of steam, the dust bulky grain in smoke exhaust is deposited to control in pollution sources control roomChamber processed cone section cover body also collects, and finally enters in the burnt tank in quenching compartment; Desulfurizer slurry, selects MgO slurries to carry out washing absorption cigaretteSO in gas2, generate magnesium sulfite and the magnesium sulfate containing the crystallization water by oxidation side reaction;
(5), be absorbed SO2With the oarse-grained fine grained smoke exhaust of removal dust, arrange from elementary desulphurization reaction dedusting areaAfter going out, enter smoke exhaust negative pressure drainage section, in smoke exhaust negative pressure drainage section, through airflow-distribution board assembly and straightener(stator) bladeThe air-flow of assembly distributes and rectification, mobile smoke exhaust in rectangle work pipeline section, and air-flow is evenly distributed, mid portion gasStream weakens, surrounding reinforced partly, and with start to mix from the ambient windstream of flow field drive system, start to mix rear smoke exhaustTemperature starts further reduction, and the needs that meet the senior desulfurization and dedusting of the follow-up purifier of fume and exhaust gas purifying system adopt thisInvention smoke exhaust pollution sources control device and process, can reduce high-temperature smoke EGT, removes in smoke exhaustContained low concentration SO2Deng acidic components, remove contained big dust particle in smoke exhaust, realize solid or liquid grainThe pollutants such as son are effectively controlled. Can remove low concentration SO contained in smoke exhaust2Deng acidic components, desulfuration efficiency approximately >=95%, remove contained big dust particle in smoke exhaust, efficiency of dust collection approximately >=90%.
Brief description of the drawings
Fig. 1 is smoke exhaust pollution sources control device structural representation;
Fig. 2 is the process chart of smoke exhaust pollution sources control desulphurization system;
In figure: the 1st, cube group air horn mouth, the 2nd, cube group air chamber cover body, the 3rd, collection chamber rectangle adpting flange,The 4th, control room rectangle adpting flange, the 5th, rectangle connects short tube, the 6th, isolation screen cloth, the 7th, spherical reflecting curtain, the 8th, controlChamber processed cone section cover body, the 9th, control room lower cover, the 10th, cover body, the 11st in control room, control room upper outlet body, 12 is that a group leader is squareAirflow-distribution board assembly, the 13rd, reducing pipe, the 14th, rectangle work pipeline section, 15 is square straightener(stator) blade assemblies of a group leader, the 16th,Adpting flange, the 17th, slurries spray facility, the 18th, slurry spraying facility.
Detailed description of the invention
Smoke exhaust pollution sources control device of the present invention and process are achieved in that below in conjunction with accompanying drawing and do specificallyExplanation.
Smoke exhaust pollution sources control device is cover body structure, by: high-temperature smoke exhaust plenum, pollution sources control room,Smoke exhaust negative pressure drainage section, slurries spray facility and slurry spraying facility composition.
See Fig. 1, high-temperature smoke exhaust plenum is provided with from bottom to up successively: cube group air horn mouth 1, rectangle gas collectionChamber cover body 2 and collection chamber rectangle adpting flange 3, the lower edge of cube group air horn mouth 1 and carriage of coke quenching car coke tank truckThe top edge of tank mouth has space, and the lower edge of cube group air horn mouth 1 is meeting under the condition of driving technological requirementMinimum also covers compartment tank mouth.
Pollution sources control room is provided with from bottom to up successively: control room rectangle adpting flange 4, rectangle connect short tube 5, everyBore cover body 10 and control room in section cover body 8, control room lower cover 9, control room from screen cloth 6, spherical reflecting curtain 7, control roomUpper outlet body 11. Isolation screen cloth 6 is arranged on center in pollution sources control room, the screen cloth that isolation screen cloth 6 is tubular construction, the top of screen clothPortion is that circular shape bottom is square, and the bottom of screen cloth is connected with cone section cover body 8 bottoms, control room, top and spherical reflection gearPlate 7 connects, and isolation screen cloth 6 is isolated into screen cloth inside and two regions of periphery with spherical reflecting curtain 7 by pollution sources control room.In control room cone section cover body 8, control room lower cover 9, control room, cover body 10 is connected from bottom to up successively with control room upper outlet body 11.High-temperature smoke exhaust plenum and pollution sources control room, be connected with control room rectangle by collection chamber rectangle adpting flange 3Flange 4 connects.
Smoke exhaust negative pressure drainage section is provided with from right to left successively: the square airflow-distribution board assembly 12 of a group leader, reducing pipe13, rectangle work pipeline section 14, the square straightener(stator) blade assembly 15 of a group leader and adpting flange 16; The square airflow-distribution board of one group leaderAssembly 12 is arranged on the inwall of reducing pipe 13 double overs, and the square straightener(stator) blade assembly 15 of a group leader is arranged on rectangle instrumentation tubesOn the inwall of section 14, in the double over of reducing pipe 13 and control room, cover body 10 is connected to cover body 10 upper sheds place in control room, positionIn distributing on trace of smoke exhaust. By being arranged on adpting flange 16 and the smoke exhaust in smoke exhaust negative pressure drainage section left sideThe flange that purifies pipe-line system connects.
Slurries spray facility 17 and slurry spraying facility 18 be arranged on control room upper outlet body 11 above, connect by pipelineConnect.
See Fig. 2, the process chart of smoke exhaust pollution sources control desulphurization system
Adopt smoke exhaust pollution sources control device desulphurization technological process
Desulphurization system, by: the desulfurizer slurry preparation subsystem and the desulfurizer slurry of being located at coke oven top of being located at groundInput subsystem composition, desulfurizer slurry preparation subsystem is provided with successively: desulfurizer powder storehouse, desulphurizing agent slurry formulating device andElevator pump, connects by pipeline; Desulfurizer slurry is thrown in subsystem and is provided with successively: desulfurizer slurry tank, desulfurizer slurry are thrownAdd pump group, slurries sprinkling facility 17 and slurry spraying facility 18, connect by pipeline; Be located at desulfurizer slurry preparation subsystemConnecting pipe is connected with the desulfurizer slurry tank that desulfurizer slurry is thrown in subsystem.
Adopt smoke exhaust pollution sources control device desulphurization technological process in the steps below:
(1), in the time that smoke exhaust pollution sources control device is worked, smoke exhaust pollution sources control device is in malleation graduallyWeaken the duty that negative pressure strengthens gradually.
(2), in high-temperature smoke exhaust plenum, only have red Jiao to carry and thermal induction air-flow exists, make inner just appearancePress, fall burnt three, the tank in quenching compartment at fire door place, coke guide grid of coke guide and the coke of the process of the discharging of the coke from coke guide grid of coke guide and push awayThe high-temperature smoke waste gas that burnt link is discharged is that rising buoyancy malleation drives and fume and exhaust gas purifying by the thermal induction air-flow of selfThe negative pressure guiding of system drives, and high-temperature smoke waste gas is flow to isolation screen cloth interior zone by driving, flows at high-temperature smoke waste gasIn isolation screen cloth interior zone process, taking rising buoyancy driving as main, it is auxiliary that negative pressure guiding drives.
(3), in pollution sources control room, by being located at the desulfurizer slurry flusher at the outer top of spherical reflecting curtain placeSpray, on isolation screen cloth, form desulfurizer slurry water curtain, desulfurizer slurry water curtain, is isolated into flue dust by pollution sources control room uselessThe balanced district of gas heat energy is that screen cloth interior zone and elementary desulphurization reaction dedusting area are screen cloth neighboring area, flows to screen cloth interior zoneHigh-temperature smoke waste gas, due to stopping and the expansion of overflow section of spherical reflecting curtain, its flow velocity and flowing to has all occurredChange, flow to screen cloth neighboring area by desulfurizer slurry water curtain; In the balanced district of smoke exhaust heat energy, high-temperature smoke waste gasSelf rising buoyancy driving force weakens gradually, and the negative pressure guiding driving force of fume and exhaust gas purifying system strengthens gradually, flue dustIt is balanced that heat energy from waste gas is tending towards; When high-temperature smoke waste gas passes through desulfurizer slurry water curtain, water curtain is mainly brought into play three kinds of function affects,The one, make smoke exhaust from start cooling by desulfurizer slurry water curtain, produce a large amount of steam to enter elementary desulfurization anti-simultaneouslyAnswer dedusting area; The 2nd, make low concentration SO contained in smoke exhaust2Remove Deng acidic components beginning; The 3rd, make smoke exhaustIn contained big dust particle etc. start to remove.
(4), in elementary desulphurization reaction dedusting area, be provided with desulfurizer slurry atomization dress at upper outlet body inner surface place, control roomPut, by desulfurizer slurry atomization, smoke exhaust contacts with the desulfurizing agent being atomized with steam, and physics, chemical reaction mistake occurJourney, because desulfurizing agent is atomized into 35～75 microns of superfine little droplets, has increased desulfurizing agent and SO2The specific area of contact,Contact and complete rapidly SO with smoke exhaust2Absorption and purification, obtain good desulfurization, dust removing effects; Meanwhile, due to waterThe washing of steam, the dust bulky grain in smoke exhaust is deposited to control room cone section cover body and collects in pollution sources control room,Finally enter in the burnt tank in quenching compartment; Desulfurizer slurry water curtain and desulfurizer slurry atomization that desulfurizer slurry flusher spraysThe utmost point fine mist of device atomization, both vaporizations and absorption are carried out simultaneously, and whole process does not produce unnecessary waste water;
Desulfurizer slurry of the present invention, selects MgO slurries to carry out SO in washing absorption flue dust2, generate the Asia containing the crystallization waterMagnesium sulfate and magnesium sulfate generate by being oxidized side reaction, owing to also retaining certain temperature, part through the smoke exhaust that reduces temperatureBe removed containing the crystallization water in magnesium sulfite and the magnesium sulfate of the crystallization water.
(5), be absorbed SO2With the oarse-grained fine grained smoke exhaust of removal dust, arrange from elementary desulphurization reaction dedusting areaAfter going out, enter smoke exhaust negative pressure drainage section, in smoke exhaust negative pressure drainage section, through airflow-distribution board assembly and straightener(stator) bladeThe air-flow of assembly distributes and rectification, mobile smoke exhaust in rectangle work pipeline section, and air-flow is evenly distributed, mid portion gasStream weakens, surrounding reinforced partly, and with start to mix from the ambient windstream of flow field drive system, start to mix rear smoke exhaustTemperature starts further reduction, meets the needs of the senior desulfurization and dedusting of the follow-up purifier of fume and exhaust gas purifying system.
Key reaction equation involved in the present invention:
MgO﹢H2O→Mg（OH）2(absorption process)
Mg（OH）2﹢SO2﹢5H2O→MgSO3·6H2O(absorption process)
MgSO3·6H2O﹢SO2→Mg（HSO3）2﹢5H2O(absorption process)
Mg（HSO3）2﹢Mg（OH）2﹢10H2O→2MgSO3·6H2O(absorption process)
Mg（HSO3）2﹢1/2O2﹢6H2O→MgSO4·7H2O﹢SO2(absorption process, side reaction)
MgSO3﹢1/2O2﹢7H2O→MgSO4·7H2O(absorption process, side reaction)
Mg（OH）2﹢SO3﹢6H2O→MgSO4·7H2O(absorption process, side reaction)
MgSO3·6H2O(heating) → MgSO3﹢6H2O ↑ (dry run)
MgSO4·7H2O(heating) → MgSO4﹢7H2O ↑ (dry run)
The invention has the beneficial effects as follows:
1, the desulfurizer slurry water curtain in pollution sources control room, has three kinds of effects: the one, reduce high-temperature smoke waste gas temperatureDegree, makes smoke exhaust start cooling when by desulfurizer slurry water curtain, produces a large amount of steam simultaneously and enters elementary desulfurizationReaction dedusting area; The 2nd, elementary desulphurization reaction, contained low concentration SO in smoke exhaust2Remove Deng acidic components beginning;The 3rd, elementary dedusting, in smoke exhaust, contained big dust particle etc. starts to remove.
2, in the smoke exhaust pollution sources control device course of work, from high-temperature smoke exhaust plenum cube group air hornMouthful start, till elementary desulphurization reaction dedusting area, pollution sources control room, high-temperature smoke waste gas complete taking rising buoyancy driving asMain, it is auxiliary that negative pressure guiding drives, and to taking rising buoyancy driving as auxiliary, negative pressure guiding driving is the transformation of main duty, thisThe thermal induction air-flow that transformation takes full advantage of high-temperature smoke waste gas self is rising buoyancy, Barotropic kinetic energy and fume and exhaust gas purifying systemThe negative pressure guiding function of system, with less suction air volume, has realized the pollutant such as solid or liquid particle effective and economicalControl object.
3, desulfurizer slurry of the present invention is MgO slurries, sprays sprinkling and the slurry spraying facility of facility by slurriesAtomization, fully contact with high-temperature smoke waste gas, there is series of physical, chemical reaction process, smoke exhaust temperature is reducedTo 120～150 DEG C, contained low concentration SO in smoke exhaust2Be removed Deng acidic components, desulfuration efficiency approximately >=95%, flue dustIn waste gas, contained big dust particle etc. is removed, efficiency of dust collection approximately >=90%.
Claims (2)
1. a smoke exhaust pollution sources control device, is characterized in that: smoke exhaust pollution sources control device is cover body structure,By: high-temperature smoke exhaust plenum, pollution sources control room, smoke exhaust negative pressure drainage section, slurries spray facility and slurry sprayingFacility composition;
High-temperature smoke exhaust plenum is provided with from bottom to up successively: cube group air horn mouth (1), cube group air chamber cover body(2) and collection chamber rectangle adpting flange (3), the lower edge of cube group air horn mouth (1) and carriage of coke quenching car coke tank truckThe top edge of tank mouth has space, and the lower edge of cube group air horn mouth (1) covers compartment tank mouth;
Pollution sources control room is provided with from bottom to up successively: control room rectangle adpting flange (4), rectangle connect short tube (5), everyBore cover body in section cover body (8), control room lower cover (9), control room from screen cloth (6), spherical reflecting curtain (7), control roomAnd control room upper outlet body (11) (10), isolation screen cloth (6) is arranged on center pollution sources control room in, and isolating screen cloth (6) is tubularThe screen cloth of structure, the top of screen cloth is that circular shape bottom is square, the bottom of screen cloth and control room cone section cover body (8) bottom connectConnect, top is connected with spherical reflecting curtain (7), isolation screen cloth (6) with spherical reflecting curtain (7) by pollution sources control room everyFrom becoming screen cloth inside and two regions of periphery; Cover body (10) in control room cone section cover body (8), control room lower cover (9), control roomBe connected successively from bottom to up with control room upper outlet body (11), high-temperature smoke exhaust plenum and pollution sources control room, pass through gas collectionChamber rectangle adpting flange (3) is connected with control room rectangle adpting flange (4);
Smoke exhaust negative pressure drainage section is provided with from right to left successively: rectangle airflow-distribution board assembly (12), reducing pipe (13), longSquare work pipeline section (14), rectangle straightener(stator) blade assembly (15) and adpting flange (16); The square airflow-distribution board group of one group leaderPart (12) is arranged on the inwall of reducing pipe (13) double over, and rectangle straightener(stator) blade assembly (15) is arranged on rectangle instrumentation tubesOn the inwall of section (14), in the double over of reducing pipe (13) and control room, cover body (10) is connected on cover body in control room (10) and opensMouth place, is positioned at distributing on trace of smoke exhaust, by being arranged on the adpting flange (16) in smoke exhaust negative pressure drainage section left sideBe connected with the flange of fume and exhaust gas purifying pipe-line system;
Slurries spray facilities (17) and slurry spraying facility (18) be arranged on control room upper outlet body (11) above, connect by pipelineConnect.
2. a desulphurization technological process that adopts smoke exhaust pollution sources control device claimed in claim 1, is characterized in that:Desulphurization system by: the desulfurizer slurry of being located at the desulfurizer slurry preparation subsystem on ground and being located at coke oven top is thrown in subsystemComposition, desulfurizer slurry preparation subsystem is provided with successively: desulfurizer powder storehouse, desulphurizing agent slurry formulating device and elevator pump are logicalPiping connects; Desulfurizer slurry is thrown in subsystem and is provided with successively: desulfurizer slurry tank, desulfurizer slurry add pump group, slurryLiquid sprays facility (17) and slurry spraying facility (18), connects by pipeline; Be located at the connection of desulfurizer slurry preparation subsystemPipeline is connected with the desulfurizer slurry tank that desulfurizer slurry is thrown in subsystem, its process using following steps:
(1), in the time that smoke exhaust pollution sources control device is worked, smoke exhaust pollution sources control device weakens gradually in malleationThe duty that negative pressure strengthens gradually;
(2), in high-temperature smoke exhaust plenum, only have red Jiao carry and thermal induction air-flow exist, make inside occur malleation,Fire door place, coke guide grid of coke guide and the coke of the process of the discharging of the coke fallen three coke pushing links of the burnt tank in quenching compartment from coke guide grid of coke guideThe high-temperature smoke waste gas of discharging is that rising buoyancy malleation drives and fume and exhaust gas purifying system by self thermal induction air-flowNegative pressure guiding drives, and high-temperature smoke waste gas is flow to hemispherical dome shape isolation screen cloth (6) interior zone by driving, useless at high-temperature smokeAir-flow enters in hemispherical dome shape isolation screen cloth (6) interior zone process, and taking rising buoyancy driving as main, negative pressure guiding drives and isAuxiliary;
(3), in pollution sources control room, spray the sprinkling of facility by being located at the outer top of spherical reflecting curtain place desulfurizer slurry,On hemispherical dome shape isolation screen cloth, form desulfurizer slurry water curtain; Desulfurizer slurry water curtain, is isolated into pollution sources control roomThe balanced district of smoke exhaust heat energy is that screen cloth interior zone and elementary desulphurization reaction dedusting area are screen cloth neighboring area, flows in screen clothThe high-temperature smoke waste gas in portion region, due to stopping and the expansion of overflow section of spherical reflecting curtain, its flow velocity and the flow direction are allThere is change, flowed to screen cloth neighboring area by desulfurizer slurry water curtain;
(4), in elementary desulphurization reaction dedusting area, be provided with desulfurizer slurry atomization facility at upper outlet body inner surface place, control room,By desulfurizer slurry atomization, smoke exhaust contacts with the desulfurizing agent being atomized with steam, obtains good desulfurization, dedusting effectReally, desulfuration efficiency >=95%, efficiency of dust collection >=90%; Meanwhile, due to the washing of steam, the dust in smoke exhaust is largeParticle is deposited to control room cone section cover body and collects in pollution sources control room, finally enters in the burnt tank in quenching compartment; Desulfurizing agentSlurries, select MgO slurries to carry out SO in washing absorption flue gas2, generate magnesium sulfite and the sulfuric acid containing the crystallization water by oxidation side reactionMagnesium;
(5), be absorbed SO2With the oarse-grained fine grained smoke exhaust of removal dust, from discharge elementary desulphurization reaction dedusting area,Enter smoke exhaust negative pressure drainage section, in smoke exhaust negative pressure drainage section, through airflow-distribution board assembly and straightener(stator) blade assemblyAir-flow distribute and rectification, mobile smoke exhaust in rectangle work pipeline section, air-flow is evenly distributed, mid portion air-flow subtractsA little less than, surrounding reinforced partly, and with start to mix from the ambient windstream of flow field drive system, start to mix rear smoke exhaust temperatureStart further to reduce, meet the needs of the senior desulfurization and dedusting of the follow-up purifier of fume and exhaust gas purifying system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410589187.3A CN104324602B (en) | 2014-10-29 | 2014-10-29 | A kind of smoke exhaust pollution sources control device and process |
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| CN201410589187.3A CN104324602B (en) | 2014-10-29 | 2014-10-29 | A kind of smoke exhaust pollution sources control device and process |
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| CN104324602A CN104324602A (en) | 2015-02-04 |
| CN104324602B true CN104324602B (en) | 2016-05-25 |
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| CN201410589187.3A Active CN104324602B (en) | 2014-10-29 | 2014-10-29 | A kind of smoke exhaust pollution sources control device and process |
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| CN108624340A (en) * | 2017-03-16 | 2018-10-09 | 邢台旭阳科技有限公司 | Wet method coke pressure quenching system and coke quenching method |
| CN107828428B (en) * | 2017-12-15 | 2024-04-09 | 山东钢铁股份有限公司 | Smoke dust absorbing device |
| CN109985466B (en) * | 2019-04-26 | 2022-01-28 | 南京贤云机电科技有限公司 | Device capable of safely and effectively inhibiting dust |
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| CN201519538U (en) * | 2009-11-05 | 2010-07-07 | 卢兵 | Combined dust removal system |
| CN202581339U (en) * | 2012-05-22 | 2012-12-05 | 江门市普日智能设备工程有限公司 | Environment-friendly cremation machine flue gas cleaning dust removal system |
| CN203291667U (en) * | 2013-05-03 | 2013-11-20 | 杜广智 | Crucible type metal smelting waste gas treatment device |
| CN204275807U (en) * | 2014-10-29 | 2015-04-22 | 鞍山红拖机械制造股份有限公司 | A kind of smoke exhaust pollution source apportionment device |
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| JP2000135411A (en) * | 1998-10-29 | 2000-05-16 | Tanabe Kogyo Kk | Exhaust gas treatment device and its manufacture |
| US20050235832A1 (en) * | 2004-04-22 | 2005-10-27 | Anderson Albin L | Dust vacuum system, and methods of constructing and utilizing same |
| JP5705443B2 (en) * | 2010-03-02 | 2015-04-22 | 三菱重工業株式会社 | Finishing flue gas desulfurization apparatus and exhaust gas treatment system using the same |
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| CN201519538U (en) * | 2009-11-05 | 2010-07-07 | 卢兵 | Combined dust removal system |
| CN202581339U (en) * | 2012-05-22 | 2012-12-05 | 江门市普日智能设备工程有限公司 | Environment-friendly cremation machine flue gas cleaning dust removal system |
| CN203291667U (en) * | 2013-05-03 | 2013-11-20 | 杜广智 | Crucible type metal smelting waste gas treatment device |
| CN204275807U (en) * | 2014-10-29 | 2015-04-22 | 鞍山红拖机械制造股份有限公司 | A kind of smoke exhaust pollution source apportionment device |
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