CN108295621B - A kind of multi-process flue gas purification system and its control method - Google Patents

A kind of multi-process flue gas purification system and its control method Download PDF

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CN108295621B
CN108295621B CN201810084374.4A CN201810084374A CN108295621B CN 108295621 B CN108295621 B CN 108295621B CN 201810084374 A CN201810084374 A CN 201810084374A CN 108295621 B CN108295621 B CN 108295621B
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active carbon
flue gas
gas purification
subsystem
purification device
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CN108295621A (en
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叶恒棣
刘雁飞
魏进超
刘昌齐
傅旭明
杨本涛
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Zhongye Changtian International Engineering Co Ltd
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Zhongye Changtian International Engineering Co Ltd
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Priority to KR1020207012434A priority patent/KR102343392B1/en
Priority to RU2020122728A priority patent/RU2762190C1/en
Priority to PCT/CN2018/083579 priority patent/WO2019144523A1/en
Priority to BR112020011458-8A priority patent/BR112020011458A2/en
Priority to MYPI2020002559A priority patent/MY193803A/en
Publication of CN108295621A publication Critical patent/CN108295621A/en
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Abstract

This application discloses a kind of multi-process flue gas purification system and its control methods, parsing activation subsystem is concentrated including active carbon, and flue gas purification device corresponding with each process, each flue gas purification device passes through active carbon transport subsystem respectively and concentrates parsing activation subsystem to connect with active carbon, realizes recycling for active carbon.The summation for the active carbon circular flow that main control unit is sent using the corresponding process control unit of all process steps, represent the active carbon circular flow that active carbon concentrates parsing activation subsystem, and it controls activator system control unit adjustment active carbon and concentrates weighing belt in parsing activation subsystem, the given frequency of charging gear and discharge device, so that active carbon concentrates the active carbon circular flow parsed activate at subsystem and the active carbon circular flow summation of flue gas purification device in each process substantially equal, so that the absorbed portion of multi-process flue gas purification system and parsing part achieve the purpose that synchronous operation, improve operational efficiency.

Description

A kind of multi-process flue gas purification system and its control method
Technical field
This application involves gas purification technique field more particularly to a kind of multi-process flue gas purification system and its controlling parties Method.
Background technique
Iron and steel enterprise is entire mainstay of the national economy enterprise, still, while it makes significant contribution for economic development, Also along with serious pollution atmosphere the problem of.There are many processes that can all generate flue gas emission in iron and steel enterprise, for example, sintering, Pelletizing, ironmaking, refines the processes such as steel and rolled steel at coking, contains a large amount of dust, SO in the flue gas of each process discharge2And NOXDeng Pollutant.After pollution flue gas is discharged into atmosphere, environment is not only polluted, can also be constituted a threat to human health.For this purpose, steel Enterprise generallys use active carbon flue gases purification, i.e., held in flue gas purification device with adsorption function material (such as Active carbon) absorption flue gas, to realize the purified treatment of the flue gas discharged to each process.
The active carbon flue gases purification of existing iron and steel enterprise is applied in flue gas purification system, and flue gas purification system includes The flue gas purification device 1 and several active carbons parsing activation subsystem 2, each active carbon parsing that each process is arranged in are lived Sub-systems 2 pass through the connection corresponding with each flue gas purification device 1 of corresponding active carbon transport subsystem 3 respectively.Such as Fig. 1 institute Show, active carbon flue gas purification device 1 includes feeding device 11, adsorption tower 12, discharge apparatus 13, buffer bin 14 and delivery device 15；Active carbon parsing activation subsystem 2 includes surge bunker 21, charging gear 22, Analytic Tower 23 and discharge device 24.System operation When, active carbon is entered in adsorption tower 12 by feeding device 11, the active carbon bed of material is formed in adsorption tower 12, meanwhile, contain pollution The former flue gas 17 of object also continuously enters adsorption tower 12, and the pollutant in former flue gas 17 is inhaled through the active carbon in adsorption tower 12 It is attached, obtain 16 outlet of clean flue gas.And the pollution active carbon for being adsorbed with pollutant is discharged to buffering material by discharge apparatus 13 Storehouse 14, then be discharged into active carbon transport subsystem 3 by the delivery device 15 below buffer bin 14 is arranged in, it is defeated by active carbon Subsystem 3 is sent to be delivered to the surge bunker 21 that corresponding active carbon parsing activates subsystem 2 for active carbon is polluted, pollution active carbon is again It is discharged by the charging gear 22 below surge bunker 21 is arranged in into Analytic Tower 23, it is living by parsing the cleaning for being activated and obtaining Property charcoal is discharged by discharge device 24.Clean active carbon is transported to corresponding flue gas purification device 1 by active carbon transport subsystem 3 In feeding device 11, it is again introduced into the purification for carrying out flue gas in adsorption tower 12, realizes that flue gas purification device 1 and active carbon parsing are lived The one-to-one gas cleaning processing of sub-systems 2 and active carbon recycle.
In practical applications, each flue gas emission process in iron and steel enterprise is respectively provided with a set of flue gas purification device and a set of Active carbon parsing activation subsystem, multiple flue gas purification devices and active carbon parsing activation subsystem work at the same time, with realization pair The purified treatment for the pollution flue gas that each process generates.However, due to the scale of each process of iron and steel enterprise and the cigarette of generation Tolerance is different, in order to realize that optimal gas cleaning effect, the process of different scales need the matched gas cleaning of allocation scale Device causes the type for the flue gas purification device being arranged in iron and steel enterprise more, can not be managed collectively.And it is each flue gas Independent active carbon parsing activation subsystem is respectively configured in purification device, leads to active carbon parsing activation subsystem in iron and steel enterprise Setting quantity it is excessive so that in iron and steel enterprise flue gas purification system complicated integral structure, and each process generate flue gas It is treated separately, causes the operational efficiency of flue gas purification system low.Therefore, how a kind of cigarette for capableing of efficient process flue gas is provided Gas purification system becomes this field urgent problem to be solved.
Summary of the invention
This application provides a kind of multi-process flue gas purification system and its control methods, to solve existing gas cleaning system The low problem of operational efficiency of uniting.
In a first aspect, the application provides a kind of multi-process flue gas purification system, comprising: active carbon concentrates parsing activation subsystem System, active carbon transport subsystem, and flue gas purification device corresponding with each process, each flue gas purification device are led to respectively It crosses active carbon transport subsystem and concentrates parsing activation subsystem to connect with active carbon；Wherein,
It includes Analytic Tower that the active carbon, which concentrates parsing activation subsystem, and active carbon is polluted in Analytic Tower for controlling to enter The charging gear of flow, for by Analytic Tower through activation processing after activated carbon discharge discharge device, for pair The screening plant that the activated carbon of the discharge device discharge is sieved, for collecting the activation obtained after screened device The activated carbon storehouse of active carbon is arranged in total between the outlet end and charging gear of the corresponding flue gas purification device of each process Active carbon storehouse, gross activity charcoal storehouse are used to collect the pollution active carbon that flue gas purification device is discharged in each process, be arranged in institute The weighing belt between gross activity charcoal storehouse and charging gear is stated, the weighing belt is used for the pollution active carbon in gross activity charcoal storehouse is defeated It send to Analytic Tower, and, the new active carbon supplementary device above gross activity charcoal storehouse is set, and the new active carbon supplementary device is used In supplementing new active carbon into gross activity charcoal storehouse.
Optionally, further includes: be set to the corresponding flue gas of sintering process that the active carbon concentrates parsing activation subsystem Purification device, and, the feeding-distribution device below activated carbon storehouse；The corresponding flue gas purification device row of the sintering process The pollution active carbon put is sent into Analytic Tower by active carbon transport subsystem and charging gear；
The feeding-distribution device include for for each process distribute activated carbon process n device for discharging, and for for The sintering process device for discharging of sintering process distribution activated carbon.
Second aspect, the embodiment of the present application provide a kind of control method of multi-process flue gas purification system, including following step It is rapid:
Determine tniThe active carbon circular flow W of flue gas purification device in moment corresponding process nXn(tni)；Wherein, n is more The serial number of each process in process flue gas purification system；tni=t-Tni, TniIt is corresponding at the i moment for flue gas purification device in process n Pollution active carbon transports to active carbon the time for concentrating parsing activation subsystem；
According to the active carbon circular flow W of flue gas purification device in the process nXn(tni), determine that current time t is corresponding Active carbon concentrates the active carbon circular flow W of parsing activation subsystemX0；
The active carbon circular flow W of parsing activation subsystem is concentrated according to the active carbonX0, adjust the lower stream of weighing belt Measure WC；And obtain WC=WX0When the corresponding weighing belt running frequency fc；
According to the running frequency f of the weighing beltc, adjust the active carbon and concentrate charging gear in parsing activation subsystem Given frequency fgWith the given frequency f of discharge devicep, to realize the control to multi-process flue gas purification system.
Optionally, t is determined as steps described belowniThe active carbon recycle stream of flue gas purification device in moment corresponding process n Measure WXn(tni):
The former amount of flue gas emission V generated in process of production according to process nn, and according to the following formula, calculate tniMoment is corresponding SO in the original flue gas2And NOXTotal flow；
WSn(tni)=Vn×CSn/106；
WNn(tni)=Vn×CNn/106；
In formula, WSn(tni)It is process n in tniSO in moment corresponding former flue gas2Total flow, units/kg/h；WNn(tni)For Process n is in tniNO in moment corresponding former flue gasXTotal flow, units/kg/h；CSnIt is process n in tniMoment corresponding former cigarette SO in gas2Concentration, unit mg/Nm3；CNnIt is process n in tniNO in moment corresponding former flue gasXConcentration, unit mg/Nm3；
According to the SO in the former flue gas2And NOXTotal flow and following formula calculate tniFlue gas in moment corresponding process n The active carbon circular flow W of purification deviceXn(tni)；
WXn(tni)=K1×WSn(tni)+K2×WNn(tni)；
In formula, WXn(tni)For the corresponding t of flue gas purification device in process nniThe active carbon circular flow at moment, units/kg/ h；K1For the first coefficient, value range is 15~21；K2For the second coefficient, value range is 3~5.
Optionally, determine that the corresponding active carbon of current time t concentrates the activity of parsing activation subsystem as steps described below Charcoal circular flow WX0:
According to the following formula, according to the active carbon circular flow W of flue gas purification device in the process nXn(tni), when determining current Carve the active carbon circular flow W that the corresponding active carbon of t concentrates parsing activation subsystemX0；
WX0=∑ WXn(tni)=∑ WXn(t-Tni)；
In formula, t is current time, TniFor flue gas purification device in process n i moment corresponding pollution active carbon transport to Active carbon concentrates the time of parsing activation subsystem.
Optionally, determine that the corresponding active carbon of current time t concentrates the activity of parsing activation subsystem as steps described below Charcoal circular flow WX0:
Determine the supplement flow W of the new active carbon of supplement of new active carbon supplementary deviceIt mends, according to the supplement flow WIt mends, It controls the new active carbon supplementary device and supplements new active carbon into gross activity charcoal storehouse；
According to the active carbon circular flow W of flue gas purification device in the process nXn(tni), supplement flow WIt mends, and under Formula determines that the corresponding active carbon of current time t concentrates the active carbon circular flow W of parsing activation subsystemX0；
WX0=∑ WXn(t-Tni)+WIt mends。
Optionally, the supplement flow W of the new active carbon of supplement of new active carbon supplementary device is determined as steps described belowIt mends:
The active carbon circular flow W of parsing activation subsystem is concentrated according to the active carbonX0, according to the following formula, determine activity Charcoal concentrates the active carbon of Analytic Tower in parsing activation subsystem to load doses Q0；
Q0=WX0×T0；
In formula, Q0The active carbon of Analytic Tower in parsing activation subsystem is concentrated to load doses, units/kg for active carbon；T0For The residence time of active carbon in Analytic Tower, value range 4~8, unit h；
Detect the substantial activity charcoal doses Q that the active carbon concentrates activated carbon storehouse in parsing activation subsystemIt is real；
Doses Q is loaded according to the active carbon of the Analytic Tower0With substantial activity charcoal doses QIt is real, according to formula QDamage=Q0-QIt is real, really Determine loss active carbon doses Q of the active carbon after the screening plant screening processDamage；
Control the supplement active carbon doses Q of the new active carbon supplementary deviceIt mendsWith loss active carbon doses QDamageIt is equal, according to Supplement active carbon doses Q adjustedIt mends, determine the supplement stream of the new active carbon of supplement of the new active carbon supplementary device of unit time Measure WIt mends。
Optionally, as steps described below according to the running frequency f of the weighing beltc, adjust the active carbon and concentrate parsing Activate the given frequency f of charging gear in subsystemgWith the given frequency f of discharge devicep:
Determine the blanking flow W of the weighing beltC=Kc×fc, the blanking flow W of charging gearG=Kg×fg, discharge dress The blanking flow W setP=Kp×fp；In formula, Kc, KgAnd KpIt is constant；
Control the blanking flow that the active carbon concentrates the charging gear of parsing activation subsystem, discharge device and weighing belt It is identical, so that WG=WP=WC=WX0；
According to above formula, the given frequency f of the charging gear is obtainedgWith the running frequency f of weighing beltcBetween meet following formula Relationship:According to the running frequency f of above formula and weighing beltc, adjust the given frequency f of charging gearg；And
Obtain the given frequency f of the discharge devicepWith the running frequency f of weighing beltcBetween meet following formula relationship:According to the running frequency f of above formula and weighing beltc, adjust the given frequency f of discharge devicep。
The third aspect, the embodiment of the present application provide a kind of control method of multi-process flue gas purification system, including following step It is rapid:
Determine the active carbon circular flow W of flue gas purification device in the corresponding sintering process of current time tX01；And really Determine tniThe active carbon circular flow W of flue gas purification device in moment corresponding process nXn(tni)；Wherein, n is that multi-process flue gas is net The serial number of each process in change system；tni=t-Tni, TniIt is flue gas purification device in process n in i moment corresponding pollution active carbon It transports to active carbon and concentrates the time of parsing activation subsystem；
According to the active carbon circular flow W of flue gas purification device in the process nXn(tni)With gas cleaning in sintering process The active carbon circular flow W of deviceX01And following formula, determine that the corresponding active carbon of current time t concentrates parsing activation subsystem Active carbon circular flow WX0；
WX0=∑ WXn(t-Tni)+WX01；
The active carbon circular flow W of parsing activation subsystem is concentrated according to the active carbonX0, adjust the lower stream of weighing belt Measure WC；And obtain WC=WX0-WX01When the corresponding weighing belt running frequency fc；
According to the running frequency f of the weighing beltc, adjust the active carbon and concentrate charging gear in parsing activation subsystem Given frequency fgWith the given frequency f of discharge devicep, to realize the control to multi-process flue gas purification system.
Optionally, further includes:
According to the active carbon circular flow W of flue gas purification device in the sintering processX01And formula WUnload 1=WX01× j, Determine the discharging flow W of sintering process device for dischargingUnload 1；Wherein, j is coefficient, and value range is 0.9~0.97；And control The discharging flow W of the process n device for dischargingUnload 2For maximum.
Fourth aspect, the embodiment of the present application provide a kind of control method of multi-process flue gas purification system, including following step It is rapid:
Determine the active carbon circular flow W of flue gas purification device in the corresponding sintering process of current time tX01, determine tniWhen Carve the active carbon circular flow W of flue gas purification device in corresponding process nXn(tni)；And determine new active carbon supplementary device Supplement the supplement flow W of new active carbonIt mends；Wherein, n is the serial number of each process in multi-process flue gas purification system；tni=t-Tni, TniIt is transported in i moment corresponding pollution active carbon to active carbon for flue gas purification device in process n and concentrates parsing activation subsystem Time；
According to the active carbon circular flow W of flue gas purification device in the process nXn(tni), gas cleaning in sintering process The active carbon circular flow W of deviceX01With supplement flow WIt mendsAnd following formula, determine that the corresponding active carbon of current time t concentrates solution The active carbon circular flow W of analysis activation subsystemX0；
WX0=∑ WXn(t-Tni)+WIt mends+WX01；
The active carbon circular flow W of parsing activation subsystem is concentrated according to the active carbonX0, adjust the lower stream of weighing belt Measure WC；And obtain WC=WX0-WX01When the corresponding weighing belt running frequency fc；
According to the running frequency f of the weighing beltc, adjust the active carbon and concentrate charging gear in parsing activation subsystem Given frequency fgWith the given frequency f of discharge devicep, to realize the control to multi-process flue gas purification system.
From the above technical scheme, multi-process flue gas purification system provided by the embodiments of the present application and its control method, Parsing activation subsystem, active carbon transport subsystem, and flue gas purification device corresponding with each process are concentrated including active carbon, Each flue gas purification device passes through active carbon transport subsystem respectively and concentrates parsing activation subsystem to connect with active carbon, each process The pollution active carbon of corresponding flue gas purification device discharge is transported to the gross activity that active carbon concentrates parsing activation subsystem respectively Charcoal storehouse, then parsing activation is carried out by Analytic Tower, obtained activated carbon is transported to the flue gas purification device of each process again, real Existing active carbon recycles.The process control unit being arranged in flue gas purification device in each process will corresponding flue gas purification device Active carbon circular flow be sent to main control unit, main control unit utilizes the corresponding active carbon circular flow of all process steps Summation represents active carbon and concentrates the active carbon circular flow of parsing activation subsystem, and controls setting and concentrate parsing to live in active carbon The activator system control unit of sub-systems concentrates weighing belt, charging gear in parsing activation subsystem to adjust active carbon With the given frequency of discharge device so that active carbon concentrate parsing activation subsystem at active carbon circular flow and each process in The active carbon circular flow summation of flue gas purification device is substantially equal, so that the absorbed portion and solution of multi-process flue gas purification system Analysis part achievees the purpose that synchronous operation, so that active carbon concentrates the theoretical active charcoal circular flow of parsing activation subsystem Reach balance with the active carbon circular flow of the flue gas purification device of each process, improves operational efficiency.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor, It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of existing flue gas purification system；
Fig. 2 is the structural schematic diagram for the multi-process flue gas purification system that the embodiment of the present application one provides；
Fig. 3 is the structural block diagram for the multi-process flue gas purification system that the embodiment of the present application one provides；
Fig. 4 is the structural schematic diagram for the multi-process flue gas purification system that the embodiment of the present application two provides；
Fig. 5 is the structural block diagram for the multi-process flue gas purification system that the embodiment of the present application two provides；
Fig. 6 is the flow chart of the control method of multi-process flue gas purification system provided by the embodiments of the present application；
Fig. 7 is the active carbon circular flow method of flue gas purification device in determining each process provided by the embodiments of the present application Flow chart；
Fig. 8 is the flow chart of the determining supplement method of flow for supplementing new active carbon provided by the embodiments of the present application；
Fig. 9 is the flow chart of the control method for the multi-process flue gas purification system that the another embodiment of the application provides；
The flow chart of the control method for the multi-process flue gas purification system that another embodiment of Figure 10 the application provides.
It illustrates:
Wherein, 1- flue gas purification device, 11- feeding device, 12- adsorption tower, 13- discharge apparatus, 14- buffer bin, 15- Delivery device, 16- neat stress, 17- original flue gas, 2- active carbon concentrate parsing activation subsystem, 21- surge bunker, 22- feed dress It sets, 23- Analytic Tower, 24- discharge device, 25- gross activity charcoal storehouse, 26- weighing belt, 27- screening plant, 28- activated carbon storehouse, The new active carbon supplementary device of 29-, 20- feeding-distribution device, 201- sintering process device for discharging, 202- process device for discharging, 3- activity Charcoal transport subsystem, 1 flue gas purification device of 110- process, 1 feeding device of 111- process, 1 adsorption tower of 112- process, 113- process 1 discharge apparatus, 1 buffer bin of 114- process, 1 delivery device of 115- process, 1 neat stress of 116- process, the former cigarette of 117- process 1 Gas, 1 active carbon storehouse of 118- process, 1 weighing belt of 119- process, 2 flue gas purification device of 120- process, 2 feeding device of 121- process, 2 adsorption tower of 122- process, 2 discharge apparatus of 123- process, 2 buffer bin of 124- process, 2 delivery device of 125- process, 126- work 2 neat stress of sequence, the former flue gas of 127- process 2,2 active carbon storehouse of 128- process, 2 weighing belt of 129- process, 10- computer subsystem, 100- main control unit, 1 control unit of 1011- process, 101n- process n control unit, 102- activator system control unit, 103- sintering process control unit, 104- mend new charcoal control unit, flue gas purification device in 4- sintering process, 41- sintering process Feeding device, 42- sintering process adsorption tower, 43- sintering process discharge apparatus, 44- sintering process original flue gas, 45- sintering process Neat stress.
Specific embodiment
Fig. 2 is the structural schematic diagram for the multi-process flue gas purification system that the embodiment of the present application one provides；Fig. 3 is that the application is real The structural block diagram of the multi-process flue gas purification system of the offer of example one is provided.
Referring to fig. 2, multi-process flue gas purification system provided by the embodiments of the present application, comprising: active carbon concentrates parsing activation Subsystem 2, active carbon transport subsystem 3, and flue gas purification device corresponding with each process, each flue gas purification device difference Parsing activation subsystem 2 is concentrated to connect with active carbon by active carbon transport subsystem 3.
In the present embodiment, in order to improve the efficiency of gas cleaning in steel plant, one active carbon is set in full factory and is concentrated Parsing activates subsystem 2, and the flue gas purification device being arranged at each process concentrates parsing activation with the same active carbon respectively Subsystem 2 is connected to, that is, forms one-to-many structural relation.
For example, multi-process flue gas purification system as shown in Figure 2,1 flue gas purification device 110 of process, 2 gas cleaning of process Device 120 concentrates parsing activation subsystem 2 that cascaded structure is presented by active carbon transport subsystem 3 and active carbon respectively, each The pollution active carbon of flue gas purification device discharge is transported to active carbon and concentrates at parsing activation subsystem 2, lives through parsing The activated carbon obtained after change is delivered to the circulation benefit that active carbon is realized in the flue gas purification device in each process respectively again With.
It should be noted that Fig. 2 is only to be exemplarily illustrated 1 flue gas purification device 110 of process and 2 gas cleaning of process dress Set the relationship between 120 and active carbon concentration parsing activation subsystem 2.And according to the production process of steel plant, it can actually deposit In multiple processes for generating flue gas.Therefore, it will include the corresponding gas cleaning dress of multiple processes in multi-process flue gas purification system It sets.It only include 1 flue gas purification device 110 of process and 2 gas cleaning of process dress with multi-process flue gas purification system in the present embodiment 120 are set to be illustrated.
To realize that each flue gas purification device and active carbon concentrate the circulation benefit of active carbon between parsing activation subsystem 2 With used mode is transported using active carbon transport subsystem 3.Since in steel plant, two neighboring flue gas is net Makeup the distance between is set farther out, and active carbon concentrates parsing activation subsystem 2 to present with each flue gas purification device to connect Relationship, so that different flue gas purification devices concentrate the distance between parsing activation subsystem 2 also not identical with active carbon.And in order to It realizes the efficient transportation of active carbon and recycles, by way of belt or transporter transport, distance may be not particularly suited for Farther out the case where.Therefore, in the present embodiment, vapour is also can be selected other than selecting belt, conveyer in active carbon transport subsystem 3 Vehicle transports, and avoids that conveyer or belt are arranged in full factory, increases occupied area, influence the topology layout in full factory, can also Improve the efficiency for conveying longer-distance active carbon.
Specifically, it includes Analytic Tower 23 that active carbon, which concentrates parsing activation subsystem 2, for net to the corresponding flue gas of each process The pollution active carbon that discharge is set in makeup carries out parsing activation, is recycled in order to obtain activated carbon；Setting is solving The charging gear 22 for analysing 23 arrival end of tower, for pressing the gross contamination active carbon of the corresponding flue gas purification device discharge of each process It is sent in Analytic Tower 23 according to certain frequency or flow, activates frequency to adapt to the parsing of Analytic Tower 23；It is arranged in Analytic Tower 23 The discharge device 24 of outlet end, discharge device 24 pass through the flue gas purification device corresponding with each process of active carbon transport subsystem 3 Arrival end connection, discharge device 24 is used for Analytic Tower 23 after parsing activation obtained activated carbon with certain frequency In rate or volume exhaust to active carbon transport subsystem 3, and then transport the flue gas purification device into each process；It is arranged each Gross activity charcoal storehouse 25 between the outlet end and charging gear of the corresponding flue gas purification device of process, for collecting cigarette in each process The pollution active carbon of air purifying apparatus discharge；And the weighing belt 26 between gross activity charcoal storehouse 25 and charging gear 22 is set, For all pollution active carbons collected in gross activity charcoal storehouse 25 to be transported in active carbon transport subsystem 3, and then it is sent to It is arranged in the surge bunker 21 of 22 top of charging gear, charging gear 22 realizes the connection of surge bunker 21 and Analytic Tower 23, with logical Charging gear 22 is crossed, is sent in Analytic Tower 23 according to certain flow or frequency by active carbon is polluted.
1 flue gas purification device 110 of process includes: that 1 feeding device 111 of process, 1 adsorption tower 112 of process, 1 discharge of process are set Standby 113,1 buffer bin 114 of process, 1 weighing belt 119 of 1 delivery device 115 of process, 1 active carbon storehouse 118 of process and process.In cigarette In air purifying apparatus operational process, 1 active carbon storehouse 118 of process concentrates parsing activation subsystem 2 to transport for installing by active carbon The activated carbon come, by 1 weighing belt 119 of process is transported to active carbon transport subsystem 3, due to flue gas purification device from Height degree is higher, therefore, in order to which the activated carbon of lower to be delivered to 1 surge bunker of process positioned at eminence, herein, active carbon Conveyer can be selected in transport subsystem 3.The activated carbon for being stored in 1 surge bunker of process enters work through 1 feeding device 111 of process In 1 adsorption tower 112 of sequence, meanwhile, the former flue gas 117 of process 1 also enters in 1 adsorption tower 112 of process, and the former flue gas 117 of process 1 carries Pollutant is after the activated carbon absorption in 1 adsorption tower 112 of process, obtained 1 neat stress of process, 116 outlet.And it is adsorbed with The pollution active carbon of pollutant is discharged into 1 buffer bin 114 of process by 1 discharge apparatus 113 of process and carries out of short duration storage, works as work When the pollution active carbon stored in 1 buffer bin 114 of sequence reaches a certain amount of, unloaded by 1 delivery device 115 of process by active carbon is polluted Enter into active carbon transport subsystem 3.Herein, in order to increase conveying capacity and rate, vapour is can be selected in active carbon transport subsystem 3 Vehicle, and then be delivered in gross activity charcoal storehouse 25 using active carbon transport subsystem 3 by active carbon is polluted, it waits at resolved activation Reason.
Likewise, 2 flue gas purification device 120 of process includes: 2 feeding device 121 of process, 2 adsorption tower 122 of process, process 2 Discharge apparatus 123,2 buffer bin 124 of process, 2 delivery device 125 of process, 2 active carbon storehouse 128 of process and 2 weighing belt of process 129 processes 2.2 flue gas purification device 120 of process carries out gas cleaning to the former flue gas 117 of process 2 and obtains 2 neat stress 126 of process Process is identical as 1 flue gas purification device 110 of process, and details are not described herein again.
As shown in figure 3, improving fortune to realize that each subsystem in multi-process flue gas purification system, device are precisely controlled Line efficiency, multi-process flue gas purification system provided in this embodiment further include computer subsystem 10, and computer subsystem 10 is matched It is equipped with main control unit 100, the activator system control unit 102 that active carbon concentrates parsing activation subsystem is set, is used for Control working condition and adjustment running parameter that active carbon concentrates each structure in parsing activation subsystem 2；And it is arranged each Process control unit in process in flue gas purification device, for controlling the working condition of each structure in corresponding flue gas purification device And adjustment running parameter；Main control unit 100 is used to carry out with activator system control unit 102 and process control unit two-way Data transmission controls activator system control unit 102 and process control unit executes phase by the calculating and analysis to data It should instruct, and then realize being uniformly precisely controlled to entire multi-process flue gas purification system, improve the operational efficiency of gas cleaning.
Specifically, in practical applications, the process control unit at each process is with the following functions, that is, determines current work Flue gas purification device is in t in sequenceniMoment corresponding active carbon circular flow WXn(tni)；And by gas cleaning in current process The active carbon circular flow W of deviceXn(tni)It is sent to main control unit 100；Wherein, n is each in multi-process flue gas purification system The serial number of process；tni=t-Tni, i is T at the time of sending corresponding dataniIt is corresponding at the i moment for flue gas purification device in process n Pollution active carbon transport to active carbon concentrate parsing activation subsystem time.
In the present embodiment, process control unit at each process is by the active carbon flow in corresponding flue gas purification device Be sent to main control unit 100, so as to main control unit 100 according to the active carbon flow of flue gas purification device in all process steps into Row calculates and analysis, to adjust the working condition of flue gas purification device in corresponding process, so that whole multi-process gas cleaning The operational efficiency of system reaches maximum.
For this purpose, as shown in fig. 7, the corresponding process control unit of corresponding process n determines in current process as follows Flue gas purification device is in tniMoment corresponding active carbon circular flow WXn(tni):
S21, the former amount of flue gas emission V generated in process of production according to process nn, and according to the following formula, calculate tniMoment pair The SO in former flue gas answered2And NOXTotal flow；
WSn(tni)=Vn×CSn/106；
WNn(tni)=Vn×CNn/106；
In formula, WSn(tni)It is process n in tniSO in moment corresponding former flue gas2Total flow, units/kg/h；WNn(tni)For Process n is in tniNO in moment corresponding former flue gasXTotal flow, units/kg/h；VnFor tniMoment corresponding former amount of flue gas emission, it is single Position Nm3/h；CSnIt is process n in tniSO in moment corresponding former flue gas2Concentration, unit mg/Nm3；CNnIt is process n in tniMoment NO in corresponding original flue gasXConcentration, unit mg/Nm3。
Since the main component of the pollutant of steel plant's generation is dust, SO2And NOX, in addition there are also a small amount of VOCs, two to dislike English and heavy metal etc., but because each process carries dedusting function, and SO2And NOXPollutant load in addition is less, so, flue gas Purification device mainly removes the SO in flue gas2And NOX, therefore, can be according to the SO carried in the flue gas for entering adsorption tower2And NOX Amount come the amount of active carbon required for calculating theoretically to reach optimal adsorption effect be both not in adsorption saturation, It is not in the insufficient situation of absorption.
S22, according to the SO in former flue gas2And NOXTotal flow and following formula calculate tniFlue gas in moment corresponding process n The active carbon circular flow W of purification deviceXn(tni)；
WXn(tni)=K1×WSn(tni)+K2×WNn(tni)；
In formula, WXn(tni)For the corresponding t of flue gas purification device in process nniThe active carbon circular flow at moment, units/kg/ h；K1For the first coefficient, value range is 15~21；K2For the second coefficient, value range is 3~5.
Since active carbon is flow regime in adsorption tower, flue gas is also flow regime, in order to enable the work in adsorption tower Property charcoal can carry out optimal suction-operated to the flue gas for entering adsorption tower, therefore, it is necessary to the flow regime of active carbon and flue gases Flow regime meet certain proportionate relationship, i.e., the SO in flue gas purification device in active carbon circular flow and former flue gas2With NOXThere are certain proportionate relationships for total flow.
Process control unit at each process is respectively by the active carbon circular flow of flue gas purification device in current process WXn(tni)It is sent to main control unit 100, for example, 1 control unit 1011 of process is by the activity of 1 flue gas purification device 110 of process Charcoal circular flow WX1(t1i)It is sent to main control unit 100；2 control unit 1012 of process is by 2 flue gas purification device 120 of process Active carbon circular flow WX2(t2i)It is sent to main control unit 100；Process n control unit 101n is by process n flue gas purification device Active carbon circular flow WXn(tni)It is sent to main control unit 100.
Main control unit 100 gets tniThe active carbon circular flow of flue gas purification device in moment corresponding process n WXn(tni), according to the active carbon circular flow W of flue gas purification device in all process stepsXn(tni), determine the corresponding work of current time t Property charcoal concentrate parsing activation subsystem active carbon circular flow WX0.Internal circulating load WX0Parsing activation subsystem is concentrated for active carbon The theoretical active charcoal internal circulating load of system can accurately control the operating status that active carbon concentrates parsing activation subsystem according to theoretical value And running parameter.
Specifically, main control unit 100 according to the following formula, according to the active carbon circular flow of flue gas purification device in process n WXn(tni), determine that the corresponding active carbon of current time t concentrates the active carbon circular flow W of parsing activation subsystemX0；
WX0=∑ WXn(tni)=∑ WXn(t-Tni)；
In formula, t is current time, TniFor flue gas purification device in process n i moment corresponding pollution active carbon transport to Active carbon concentrates the time of parsing activation subsystem, is provided by active carbon transport subsystem 3.
Active carbon concentrates the active carbon circular flow W of parsing activation subsystemX0For the work of flue gas purification device in each process Property charcoal circular flow summation, but calculate active carbon concentrate parsing activation subsystem 2 theoretical active charcoal circular flow when Current time t, be not each process control unit determine the active carbon internal circulating load of flue gas purification device in corresponding each process with And t at the time of sending datani.This is because the pollution active carbon of flue gas purification device discharge transports to active carbon and parsing is concentrated to live Sub-systems 2 need to expend the regular hour, and in different moments, are transported by different processes to active carbon and concentrate parsing activator Time needed for system 2 is not also identical.And the exhaust gas volumn and pollutant concentration that each process generates in process of production are the moment Variation, the active carbon circular flow that will lead in different moments flue gas purification device changes, and then not can guarantee Current time t, active carbon concentrate received pollution active carbon in parsing activation subsystem 2 to be exactly gas cleaning in corresponding process The pollution active carbon of device discharge not can guarantee active carbon and concentrate following for the parsing activation received pollution active carbon of subsystem 2 Circulation is the practical active carbon circular flow in corresponding flue gas purification device of the active carbon, and current time t activates subsystem The active carbon circular flow that control unit 102 of uniting obtains needs corresponding process passing through haulage time TniIt can just get later, T is being delayed to the needs that are precisely controlled of multi-process flue gas purification systemniAfter period, operational efficiency can be reduced in this way, is caused Obtained active carbon concentrates the theoretical active charcoal circular flow W of parsing activation subsystemX0Inaccuracy.
For example, current time t when calculating the theoretical active charcoal circular flow of active carbon concentration parsing activation subsystem 2 is 10:00, the pollution active carbon of flue gas purification device discharge transports the time for concentrating parsing to activate subsystem to active carbon in process 1 T1iIt is 0.5 hour, then, 1 control unit 1011 of process need to be by t1iFor flue gas purification device in 9:30 moment corresponding process 1 Active carbon circular flow WX1(t1i)It is sent to main control unit 100；For another example calculating active carbon concentrates parsing activation subsystem Current time t when 2 theoretical active charcoal circular flow is 14:20, the pollution active carbon of flue gas purification device discharge in process 2 It transports to active carbon and concentrates the time T of parsing activation subsystem2iIt is 40 minutes, then, 2 control unit 1012 of process need to be by t2i For the active carbon circular flow W of flue gas purification device in 13:40 moment corresponding process 2X2(t2i)It is sent to main control unit 100。
Therefore, in order to ensure the operational efficiency of multi-process flue gas purification system and activator system control unit 102 obtain The data taken, i.e., the active carbon circular flow W of flue gas purification device in each processXn(tni)Accuracy, so as to the data of acquisition It can accurately indicate that current time t active carbon concentrates the active carbon circular flow W of parsing activation subsystemX0, therefore, it is necessary to obtain It takes and shifts to an earlier date haulage time T in current time tniThe active carbon that this period corresponds to flue gas purification device in each process at moment follows Circulation utilizes WXn(t-Tni)It is converted to the active carbon recycle stream of flue gas purification device in the corresponding each process of current time t Amount.
When main control unit 100 determines that active carbon concentrates the active carbon circular flow W of parsing activation subsystemX0Later, The blanking flow according to the data point reuse weighing belt 26 is needed, to adjust giving for Analytic Tower 23 according to the blanking flow of weighing belt 26 Expect device 22 and discharge device 24 blanking flow so that the blanking flow of the blanking flow of weighing belt 26, charging gear 22 and The blanking flow of discharge device 24 is concentrated the parsing activation theoretical active charcoal circular flow of subsystem 2 equal, is reached with active carbon It is precisely controlled the effect of multi-process flue gas purification system.
In actual motion, the actual motion frequency of weighing belt 26 may be unable to reach the degree accurately controlled, therefore, be The active carbon circular flow of the flue gas purification device of each process can concentrate the active carbon of parsing activation subsystem 2 with active carbon Circular flow is identical, so that entire multi-process flue gas purification system can be realized synchronous operation, avoids the occurrence of because active carbon is concentrated The amount for the activated carbon that parsing activation subsystem 2 transports, is not enough to support in each process at flue gas purification device and adsorbs flue gas Amount, reduce adsorption effect, or occur active carbon concentrate parsing activation subsystem 2 transport activated carbon amount it is excessive, Flue gas purification device in each process is caused to be in saturation state, the case where activated carbon overflows.Therefore, it is necessary to control The blanking flow W of weighing belt 26CThe active carbon circular flow W of parsing activation subsystem is concentrated with active carbonX0It is equal.
Specifically, activator system control unit 102 concentrates the active carbon of parsing activation subsystem to recycle according to active carbon Flow WX0Adjust the blanking flow W of weighing belt 26C, so that the blanking flow of weighing belt 26 gradually concentrates parsing activation with active carbon The active carbon circular flow of subsystem 2 is equal, determines WC=WX0When corresponding weighing belt 26 running frequency fc.The running frequency fcFor the theoretical running frequency of weighing belt 26, namely the operation frequency for enabling to multi-process flue gas purification system to realize synchronous operation Rate.
Main control unit 100 obtains the running frequency f of weighing belt 26 immediatelyc, according to the running frequency f of weighing belt 26c, to Activator system control unit 102 sends adjustment instruction, so that activator system control unit 102 adjusts giving for charging gear 22 Determine frequency fgWith the given frequency f of discharge device 24p, to realize the control to multi-process flue gas purification system.
Specifically, in the present embodiment, main control unit 100 is analyzed data and is calculated according to the data got, Control instruction is generated according to result, executes corresponding operating to control activator system control unit 102.Therefore, adequately root According to the running frequency f of weighing belt 26c, adjust the given frequency f of charging gear 22gWith the given frequency f of discharge device 24p, master control Unit 100 processed is configured as executing following procedure step:
S61, the blanking flow W for determining weighing beltC=Kc×fc, the blanking flow W of charging gearG=Kg×fg, discharge dress The blanking flow W setP=Kp×fp；In formula, Kc, KgAnd KpIt is constant, the outlet with the width, charging gear 22 of weighing belt 26 Width, the exit width of discharge device 24, motor and converter parameter, active carbon specific gravity etc. are related.
Since weighing belt 26, charging gear 22, discharge device 24 are the feeder apparatus for being driven by a motor material transportation, electricity Machine is dragged by frequency converter, and the running frequency of frequency converter determines its revolving speed, so that weighing belt 26, charging gear 22, discharge device 24 Material feed flow it is directly proportional to motor speed, i.e., blanking flow is directly proportional to the revolving speed of motor.
S62, control active carbon concentrate the blanking flow of the charging gear of parsing activation subsystem, discharge device and weighing belt It is identical, so that WG=WP=WC=WX0。
According to above-mentioned introduction, in order to which the active carbon circular flow of the flue gas purification device of each process can be concentrated with active carbon The active carbon circular flow of parsing activation subsystem 2 is identical, so that entire multi-process flue gas purification system can be realized synchronous fortune Row needs to concentrate the theoretical active charcoal circular flow W of parsing activation subsystem 2 according to the active carbonX0It adjusts under weighing belt 26 Stream amount, the lower stream of charging gear 22 and discharge device 24 further according to the blanking flow adjustment Analytic Tower 23 of weighing belt 26 Amount, so that the blanking flow W of weighing belt 26C, charging gear 22 blanking flow WGWith the blanking flow W of discharge device 24P, with Active carbon concentrates the theoretical active charcoal circular flow W of parsing activation subsystemX0It is equal.
S63, according to above formula, obtain the given frequency f of charging geargWith the running frequency f of weighing beltcBetween meet following formula Relationship:So that according to above formula and the running frequency f of weighing beltc, adjust the given frequency f of charging gearg；And
Obtain the given frequency f of discharge devicepWith the running frequency f of weighing beltcBetween meet following formula relationship: So that according to above formula and the running frequency f of weighing beltc, adjust the given frequency f of discharge devicep。
According to the given frequency f of charging gear 22g, discharge device 24 given frequency fpWith the running frequency of weighing belt 26 fcBetween proportionate relationship, can be by fg、fpAdjust to fcIt is equal, and then can guarantee in actual operation, under weighing belt 26 Stream amount WC, charging gear 22 blanking flow WGWith the blanking flow W of discharge device 24P, parsing activator is concentrated with active carbon The theoretical active charcoal circular flow W of systemX0It is equal, so that active carbon concentrates the theoretical active charcoal recycle stream of parsing activation subsystem Measure WX0Reach balance with the active carbon circular flow of the flue gas purification device of each process, to guarantee entire multi-process gas cleaning System can be realized synchronous operation, and operational efficiency is best.
Since pollution active carbon is after the parsing of Analytic Tower 23 is activated, weight can change, and live in discharge activation Property charcoal when will also result in a little waste of active carbon, therefore, in order to keep Analytic Tower 23 charging gear 22 blanking flow with The balance of the blanking flow of discharge device 24 needs that parsing activation subsystem 2 is concentrated to supplement new active carbon for active carbon.
In the present embodiment, the auxiliary point for supplementing new active carbon is located at active carbon and concentrates parsing activation subsystem 2, i.e. this implementation The active carbon that example provides concentrates parsing activation subsystem 2 further include: the new active carbon supplement of 25 top of gross activity charcoal storehouse is arranged in Device 29.
The device for supplementing new active carbon is arranged in gross activity charcoal Cang25Chu, this is because gross activity charcoal storehouse 25 the present embodiment For receiving the pollution active carbon that flue gas purification device is discharged in full factory's each process, receives all pollution active carbons and united later One, which is transported to Analytic Tower 23, carries out parsing activation, and obtained activated carbon is uniformly transported to the gas cleaning dress of each process again In setting, recycling for active carbon is realized.Gross activity charcoal storehouse 25 receives all pollution active carbons, can accurately determine each process The active carbon of middle flue gas purification device always meets loss how many active carbon, Jin Erke together when adsorbing in flue gas and transportational process Uniformly to be supplemented in gross activity charcoal Cang25Chu, avoid because individually supplementing active carbon at flue gas purification device in each process, It not can guarantee the amount for supplementing new active carbon every time not only, will affect the operational efficiency of system entirety yet.
It is equipped in new active carbon supplementary device 29 and mends new charcoal control unit 104, the new charcoal control unit 104 of the benefit and main control Unit 100 carries out bidirectional data transfers, mends new charcoal control unit 104 for the instruction according to main control unit 100, controls new living Property charcoal supplementary device 29 according to certain frequency be that gross activity charcoal storehouse 25 supplements new active carbon.
If after gross activity charcoal Cang25Chu has new active carbon to enter, the work that active carbon concentrates parsing activation subsystem can be changed Property charcoal internal circulating load WX0, therefore, calculating WX0When not only to consider the active carbon circular flow of flue gas purification device in each process, It is also contemplated that active carbon flow when new active carbon is supplemented in gross activity charcoal storehouse 25.
Specifically, in the present embodiment, the main control unit 100 of multi-process flue gas purification system according to the following steps work as by determination The corresponding active carbon of preceding moment t concentrates the active carbon circular flow W of parsing activation subsystemX0:
S41, the supplement flow W for supplementing new active carbon for determining new active carbon supplementary deviceIt mends, according to the supplement flow WIt mends, control the new active carbon supplementary device and supplement new active carbon into gross activity charcoal storehouse.
In the present embodiment, You Buxin charcoal control unit 104 determines the new active carbon of supplement of new active carbon supplementary device 29 Supplement flow WIt mends.Since active carbon concentrates parsing activation subsystem 2 to carry out analytic uniform activation to all pollution active carbons, and will Obtained activated carbon is uniformly transported to each process, also, is not provided with screening loss charcoal in each process at flue gas purification device, But concentrate parsing activation subsystem 2 to carry out unified screening in active carbon and charcoal is lost, to guarantee that the data for screening loss charcoal are quasi- True property, and the operational efficiency of total system can be improved.
In the present embodiment, active carbon concentrates parsing activation subsystem 2 further include: the screening dress positioned at 24 lower section of discharge device It sets 27 and positioned at the activated carbon storehouse 28 of 27 lower section of screening plant, screening plant 27 is used for by the parsing activation of Analytic Tower 23 Active carbon afterwards is sieved, and the activated carbon for obtaining targeted particle size is stored into activated carbon storehouse 28, activated carbon Activated carbon in storehouse 28 is the source of active carbon needed for flue gas purification device in each process.In the present embodiment, screening dress Setting 27 can be vibrating screen, can also be other devices with sieving actoion, be not specifically limited in the present embodiment.
In actual operation, screening plant 27 can generate a small amount of loss when sieving to the active carbon after parsing, And the loss may include the loss of active carbon caused by flue gas purification device is when adsorbing flue gas in each process, generate in transit Loss, the loss generated in Analytic Tower 23 and the loss generated after screening plant 27.As it can be seen that by being arranged in activity The loss charcoal amount that charcoal concentrates the screening plant 27 at parsing activation subsystem 2 to generate, as multi-process flue gas purification system are being transported The summation of all consumption charcoal amounts generated during row.According to the consumption charcoal amount generated herein, can accurately and quickly determine The new amounts of activated carbon that gross activity charcoal Cang25Chu is required supplementation with, to guarantee that active carbon concentrates the theoretical active charcoal of parsing activation subsystem Circular flow WX0Reach balance with the active carbon circular flow of the flue gas purification device of each process, to guarantee entire multi-process cigarette Gas purification system can be realized synchronous operation, and operational efficiency is best.
For this purpose, in order to accurately determine the supplement of the new active carbon of supplement of the new active carbon supplementary device 29 in the unit time Flow WIt mends.As shown in figure 8, activator system control unit 102 in the present embodiment step with the following method:
S411, the active carbon circular flow W that parsing activation subsystem is concentrated according to active carbonX0, according to the following formula, determine activity Charcoal concentrates the active carbon of Analytic Tower in parsing activation subsystem to load doses Q0；
Q0=WX0×T0；
In formula, Q0The active carbon of Analytic Tower in parsing activation subsystem is concentrated to load doses, units/kg for active carbon；T0For The residence time of active carbon in Analytic Tower, value range 4~8, unit h；
In the present embodiment, using the amount of the activated carbon of the amount and discharge of all pollution active carbons entered in Analytic Tower Difference, determine loss amounts of activated carbon.
Therefore, it is necessary to the active carbon circular flow W of parsing activation subsystem is concentrated according to active carbonX0Exist with pollution active carbon Residence time T in Analytic Tower0, determine the active carbon filling doses Q of current time t Analytic Tower0。
S412, detection active carbon concentrate the substantial activity charcoal doses Q in activated carbon storehouse in parsing activation subsystemIt is real；
S413, doses Q is loaded according to the active carbon of Analytic Tower0With substantial activity charcoal doses QIt is real, according to formula QDamage=Q0-QIt is real, really Determine loss active carbon doses Q of the active carbon after the screening plant screening processDamage；
The substantial activity charcoal material in the corresponding activated carbon storehouse current time t is detected by activator system control unit 102 Measure QIt is real, doses Q is loaded further according to active carbon in Analytic Tower 230, that is, can determine that multi-process flue gas purification system is transported in one cycle When row, the lossy active carbon doses of institute of generation.
The supplement active carbon doses Q of S414, the new active carbon supplementary device of controlIt mendsWith loss active carbon doses QDamageIt is equal, root According to supplement active carbon doses Q adjustedIt mends, determine the supplement of the new active carbon of supplement of the new active carbon supplementary device of unit time Flow WIt mends。
The loss active carbon doses Q generated after screened device 27Damage, as new active carbon supplementary device 29 will mend actually The new active carbon doses filled.Therefore, active carbon doses Q will be lostDamageAs benchmark, You Buxin charcoal control unit 104 controls new work Property charcoal supplementary device 29 according to loss active carbon doses QDamageDetermine supplement active carbon doses QIt mends.After supplement doses determines Determine the supplement flow W of the new active carbon of supplement of unit timeIt mends。
As the supplement flow W of the new active carbon of supplement of new active carbon supplementary device 29It mendsAfter determination, You Buxin charcoal control unit The 104 new active carbon supplementary devices of control, according to supplement flow WIt mendsNew active carbon is supplemented into gross activity charcoal storehouse.
S42, according to the active carbon circular flow W of flue gas purification device in process nXn(tni), supplement flow WIt mends, and under Formula determines that the corresponding active carbon of current time t concentrates the active carbon circular flow W of parsing activation subsystemX0；
WX0=∑ WXn(t-Tni)+WIt mends。
Since 25 include the pollution active carbon of flue gas purification device discharge and newly supplementing in each process in gross activity charcoal storehouse New active carbon will comprehensively consider above-mentioned when determining that active carbon concentrates the theoretical active charcoal circular flow of parsing activation subsystem 2 Active carbon circular flow.Active carbon concentrates parsing activation subsystem 2 to generate loss charcoal in previous cycle, is supplemented immediately, To guarantee that active carbon concentrates parsing activation subsystem corresponding active carbon circular flow when recycling next time, with cigarette in each process Active carbon circular flow summation in air purifying apparatus is equal.It can be seen that charcoal is lost by unified screening in the present embodiment, and unite One carries out supplementing new active carbon, it is ensured that the accuracy of loss and magnitude of recruitment, and the time of the operation can be farthest reduced, And then improve the operational efficiency of multi-process flue gas purification system.
From the above technical scheme, multi-process flue gas purification system provided by the embodiments of the present application, including active carbon collection It is net that middle parsing activates subsystem 2, active carbon transport subsystem 3, and flue gas purification device corresponding with each process, each flue gas Makeup is set concentrates parsing activation subsystem 2 to connect by active carbon transport subsystem 3 with active carbon respectively, the corresponding cigarette of each process The pollution active carbon of air purifying apparatus discharge is transported to the gross activity charcoal storehouse 25 that active carbon concentrates parsing activation subsystem 2 respectively, Parsing activation is carried out by Analytic Tower 23 again, obtained activated carbon is transported to the flue gas purification device of each process again, realizes Active carbon recycles.The process control unit being arranged in flue gas purification device in each process will correspond to flue gas purification device Active carbon circular flow is sent to main control unit 100, and main control unit 100 utilizes the corresponding active carbon recycle stream of all process steps The summation of amount represents active carbon and concentrates the active carbon circular flow of parsing activation subsystem 2, and controls setting and concentrate in active carbon The activator system control unit 102 of parsing activation subsystem 2 concentrates belt in parsing activation subsystem 2 to adjust active carbon The given frequency of scale 26, charging gear 22 and discharge device 24, so that active carbon concentrates the active carbon at parsing activation subsystem 2 Circular flow and the active carbon circular flow summation of flue gas purification device in each process are substantially equal, so that multi-process gas cleaning The absorbed portion of system and parsing part achieve the purpose that synchronous operation, so that active carbon concentrates parsing activation subsystem Theoretical active charcoal circular flow WX0Reach balance with the active carbon circular flow of the flue gas purification device of each process, improves operation effect Rate.
Fig. 4 is the structural schematic diagram for the multi-process flue gas purification system that the embodiment of the present application two provides；Fig. 5 is that the application is real The structural block diagram of the multi-process flue gas purification system of the offer of example two is provided.
As shown in Figure 4 and Figure 5, the multi-process flue gas purification system that the embodiment of the present application two provides, with above-described embodiment Difference place is that the system also can be applicable in sintering process, since the flue gas that in steel plant, sintering process is generated is remote Greater than the flue gas that other processes generate, i.e. sintering process smoke yields are the 70% of the total exhaust gas volumn of steel plant.It therefore, is raising Sintering process and active carbon are concentrated parsing activation subsystem 2 to be set together, i.e. multi-process by operational efficiency when gas cleaning Flue gas purification system further includes being set to active carbon to concentrate the corresponding gas cleaning dress of the sintering process of parsing activation subsystem 2 It sets.
In the present embodiment, the pollution active carbon that flue gas purification device 4 is discharged in sintering process is without being delivered to gross activity charcoal Storehouse 25 carries out of short duration storage, can be fed directly to carry out parsing activation in Analytic Tower 23.
Since the flue gas that sintering process generates is excessive, and according to steel plant's scale, sintering process may include 1# sintering and 2# Sintering, at this point, can be correspondingly arranged two active carbons in order to improve the operational efficiency of gas cleaning and concentrate parsing activation subsystem 2. In the present embodiment, flue gas purification device 4 in parsing activation 2, sintering processes of subsystem is only concentrated with one active carbon of setting Be illustrated for flue gas purification device in multiple other processes.
Flue gas purification device 4 is identical as the structure of the flue gas purification device of each process shown in Fig. 2 in sintering process, specifically Ground, flue gas purification device 4 includes: sintering process feeding device 41, sintering process adsorption tower 42 and sintering process in sintering process Discharge apparatus 43.Flue gas purification device 4 carries out gas cleaning to sintering process original flue gas 44 and obtains sintering process in sintering process The process of neat stress 45 is identical as 1 flue gas purification device 110 of process, and respective process can refer to the content of embodiment one, herein not It repeats again.
Sintering process control unit 103 is equipped in sintering process in flue gas purification device 4, is used for and main control unit 100 Bidirectional data transfers are carried out, according to the instruction of main control unit 100, control the work shape of flue gas purification device 4 in sintering process State and adjustment running parameter etc..
After increasing sintering process in multi-process flue gas purification system, parsing activation subsystem is concentrated calculating active carbon Active carbon circular flow WX0When considered in the active carbon circular flow and each process of flue gas purification device 4 in sintering process simultaneously The active carbon circular flow of flue gas purification device.
In practical applications, it needs to determine using sintering process control unit 103 in the corresponding sintering process of current time t The active carbon circular flow W of flue gas purification deviceX01；By active carbon circular flow WX01It is sent to main control unit 100.
Wherein, in sintering process flue gas purification device 4 active carbon circular flow WX01, above-described embodiment offer is provided Method, according to SO in flue gas2And NOXTotal flow determines that details are not described herein again.
As shown in figure 9, sintering process control unit 103 determines the active carbon circular flow of current flue gas purification device WX01Afterwards, by active carbon circular flow WX01It is sent to main control unit 100, main control unit 100 according to the following steps work as by determination The corresponding active carbon of preceding moment t concentrates the active carbon circular flow W of parsing activation subsystemX0:
S71, the active carbon circular flow W for determining flue gas purification device in the corresponding sintering process of current time tX01；With And determine tniThe active carbon circular flow W of flue gas purification device in moment corresponding process nXn(tni)；Wherein, n is multi-process cigarette The serial number of each process in gas purification system；tni=t-Tni, TniFor flue gas purification device in process n, at the i moment, corresponding pollution is lived Property charcoal transport to active carbon concentrate parsing activation subsystem time；
Since sintering process and active carbon concentrate parsing activation subsystem 2 to be integrated, pollution active carbon is filled by gas cleaning It is 0 that the time of delivery of the adsorption column outlet set to 23 entrance of Analytic Tower, which can be ignored, therefore, obtains gas cleaning dress in sintering process Set 4 active carbon circular flow WX01At the time of can for calculate active carbon concentrate parsing activation subsystem 2 active carbon circular flow Current time t.
The active carbon circular flow W of flue gas purification device in process nXn(tni)Determination method can refer to above-described embodiment Content, details are not described herein again.
S72, according to the active carbon circular flow W of flue gas purification device in process nXn(tni)With gas cleaning in sintering process The active carbon circular flow W of deviceX01And following formula, determine that the corresponding active carbon of current time t concentrates parsing activation subsystem Active carbon circular flow WX0；
WX0=∑ WXn(t-Tni)+WX01。
S73, the active carbon circular flow W that parsing activation subsystem is concentrated according to the active carbonX0, adjust under weighing belt Stream amount WC；And obtain WC=WX0-WX01When the corresponding weighing belt running frequency fc；
S74, the running frequency f according to the weighing beltc, adjust and be fed in the active carbon concentration parsing activation subsystem The given frequency f of devicegWith the given frequency f of discharge devicep, to realize the control to multi-process flue gas purification system.
At this point, it is gas cleaning dress in sintering process that active carbon, which concentrates the active carbon circular flow of parsing activation subsystem 2, Set 4 active carbon circular flow and each process in flue gas purification device the sum of active carbon circular flow, in addition, if multi-process When being equipped with screening activated carbon in flue gas purification system and supplementing the operation of new active carbon, parsing is concentrated to live calculating active carbon When the active carbon circular flow of sub-systems, it is also contemplated that supplementing the supplement flow W of new active carbon in gross activity charcoal storehouse 25It mends, into And it can guarantee active carbon and concentrate the theoretical active charcoal circular flow W of parsing activation subsystemX0With sintering process and each process In the active carbon circular flow of flue gas purification device reach balance, to guarantee that entire multi-process flue gas purification system can be real It now runs simultaneously, operational efficiency is best.
After increasing sintering process in multi-process flue gas purification system, active carbon concentrates the theory of parsing activation subsystem living Property charcoal circular flow change immediately, and in sintering process flue gas purification device 4 discharge pollution active carbon be fed directly to Analytic Tower 23 only includes the pollution active carbon of other processes discharge in gross activity charcoal storehouse 25.At this point, active carbon concentrates parsing activation The theoretical active charcoal circular flow of subsystem 2 is the active carbon circular flow that flue gas purification device 4 is discharged in sintering process and its The sum of the active carbon circular flow of flue gas purification device in his process.It therefore, is the accurate skin for determining 25 lower section of gross activity charcoal storehouse The blanking flow of belt scale 26 needs to concentrate the active carbon circular flow W of parsing activation subsystem according to active carbonX0And sintering process The active carbon circular flow W of middle flue gas purification deviceX01Difference determine.
For this purpose, activator system control unit 102 is further configured to execute following program steps: according to active carbon collection The active carbon circular flow W of middle parsing activation subsystemX0With the active carbon circular flow of flue gas purification device in sintering process WX01, adjust the blanking flow W of weighing belt 26C, determine WC=WX0-WX01When corresponding weighing belt 26 running frequency fc。
As the running frequency f for redefining weighing belt 26cAnd then the secondary charging gear 22 for calculating Analytic Tower 23 is given Frequency fg, discharge device 24 given frequency fpWith the running frequency f of weighing belt 26cBetween proportionate relationship, and then according to again Determining proportionate relationship adjusts fg、fpWith fcIt is equal, and then guarantee in actual operation, the blanking flow W of weighing belt 26C, give Expect the blanking flow W of device 22GWith the blanking flow W of discharge device 24PIt is equal, so that active carbon concentrates parsing activation subsystem Theoretical active charcoal circular flow WX0Reach balance with the active carbon circular flow of the flue gas purification device of each process, to guarantee Entire multi-process flue gas purification system can be realized synchronous operation, and operational efficiency is best.
It should be noted that fg、fpWith fcProportionate relationship method of determination, can refer to embodiment one offer respective party Method, details are not described herein again.
Due to including the corresponding flue gas purification device of sintering process in multi-process flue gas purification system provided in this embodiment, And the corresponding flue gas purification device of other each process exists for each process point in steel plant after generating activated carbon The problem of active carbon with corresponding amount.And the exhaust gas volumn generated in sintering process is significantly larger than the flue gas of other each process generation Amount, therefore, in order to guarantee the optimal adsorption effect of flue gas purification device in sintering process, needs to distribute for sintering process more Activated carbon, the sendout need corresponding according to the loadings or sintering process of the adsorption tower of corresponding flue gas purification device Active carbon circular flow is determined, and the amounts of activated carbon for distributing to other processes is to distribute to remaining institute after sintering process Active charcoal.
It therefore, is the accurate distribution for realizing activated carbon, so that multi-process flue gas purification system maintains the circulation of balance State needs to carry out distribution according to need activated carbon using feeding-distribution device 20.
In the present embodiment, it further includes point positioned at 28 lower section of activated carbon storehouse that active carbon, which concentrates parsing activation subsystem 2, Expect device 20；Feeding-distribution device 20 include for for each process distribute activated carbon process device for discharging 202, and for for The sintering process device for discharging 201 of sintering process distribution activated carbon.
It is that flue gas purification device 4 distributes activity in sintering process in steel plant first with sintering process device for discharging 201 Charcoal, the amounts of activated carbon of distribution is according to the corresponding active carbon of loadings or sintering process of adsorption tower in corresponding flue gas purification device Circular flow determines.
In a kind of wherein specific embodiment, the amounts of activated carbon of sintering process distribution is according to corresponding flue gas purification device The loadings of middle adsorption tower determine.
In the present embodiment, the loadings Q of adsorption tower in sintering process flue gas purification deviceBurn 0It determines according to the following formula:
QBurn 0=WX01×TBurn 0；
In formula, QBurn 0For the loadings of active carbon in adsorption tower in sintering process, units/kg；WX01For flue gas in sintering process Active carbon circular flow of the purification device in current time t, units/kg/h；TBurn 0For active carbon in adsorption tower in sintering process Residence time, value range are 110~170, unit h；Wherein, residence time TBurn 0It is determined according to exhaust gas volumn, flue gas flow rate etc..
After the loadings for determining the adsorption tower of the corresponding flue gas purification device of sintering process, that is, it can determine that sintering process is unloaded Expect total discharging quantity of device, and then can determine the discharging flow W of sintering process device for discharging 201 in the unit timeUnload 1。
In another specific embodiment, the amounts of activated carbon of sintering process distribution is according to the corresponding activity of sintering process Charcoal circular flow determines.
Since the activated carbon adsorption of adsorption tower discharge has pollutant, so the active carbon of same volume, weight will increase 3% ~10%, i.e. same batch of active carbon, the weight after parsing activation is 0.9~0.97 of weight after adsorbing pollutant, therefore, true When determining 4 corresponding theoretical active charcoal circular flow of flue gas purification device in sintering process, the variation coefficient j of weight is considered, i.e., The discharging flow W of sintering process device for discharging 201Unload 1It determines according to the following formula:
WUnload 1=WX01×j；
In formula, j is coefficient, and value range is 0.9~0.97.
After determining the discharging flow of sintering process device for discharging 201, in fact, the discharging flow of other each process WUnload 2The theoretical active charcoal circular flow W of parsing activation subsystem is concentrated for active carbonX0With unloading for sintering process device for discharging 201 Stream amount WUnload 1Difference, but the continuous operation in order to guarantee multi-process flue gas purification system improves operational efficiency, in the present embodiment, The discharging flow W of the process device for discharging 202 of active carbon will be distributed for flue gas purification device in other each processUnload 2It is set as most Greatly, to realize that storing how many material in feeding-distribution device just transports the purpose how much expected.
In the third embodiment, also new active carbon can be configured in the multi-process flue gas purification system that embodiment two provides Supplementary device 29, specifically, as shown in Figure 10, main control unit 100 is configured as executing following step, to realize to multi-process Flue gas purification system is precisely controlled:
S81, the active carbon circular flow W for determining flue gas purification device in the corresponding sintering process of current time tX01, determine tniThe active carbon circular flow W of flue gas purification device in moment corresponding process nXn(tni)；And determine new active carbon supplement dress The supplement flow W for the new active carbon of supplement setIt mends；Wherein, n is the serial number of each process in multi-process flue gas purification system；tni=t- Tni, TniIt is transported in i moment corresponding pollution active carbon to active carbon for flue gas purification device in process n and concentrates parsing activator The time of system；
S82, according to the active carbon circular flow W of flue gas purification device in the process nXn(tni), flue gas in sintering process The active carbon circular flow W of purification deviceX01With supplement flow WIt mendsAnd following formula, determine the corresponding active carbon collection of current time t The active carbon circular flow W of middle parsing activation subsystemX0；
WX0=∑ WXn(t-Tni)+WIt mends+WX01；
S83, the active carbon circular flow W that parsing activation subsystem is concentrated according to the active carbonX0, adjust under weighing belt Stream amount WC；And obtain WC=WX0-WX01When the corresponding weighing belt running frequency fc；
S84, the running frequency f according to the weighing beltc, adjust and be fed in the active carbon concentration parsing activation subsystem The given frequency f of devicegWith the given frequency f of discharge devicep, to realize the control to multi-process flue gas purification system.
Multi-process flue gas purification system provided in this embodiment, concrete implementation process can mutually should refer to one He of embodiment The corresponding part content of embodiment two, details are not described herein again.
Multi-process flue gas purification system provided in this embodiment concentrates the sintering process for generating more flue gas and active carbon Parsing activation subsystem is set together, and the pollution active carbon that flue gas purification device 4 is discharged in sintering process can be with most fast Speed enters active carbon and parsing activation subsystem 2 is concentrated to carry out parsing activation, avoids wasting time during transport, causes system Operational efficiency reduces.And the active carbon circular flow control whole system of parsing activation subsystem 2 is being concentrated according to active carbon When operating parameter, the corresponding active carbon circular flow of sintering process active carbon recycle stream corresponding with other each process is fully considered Amount, so that the given frequency f of the charging gear 22 in control Analytic Towerg, discharge device 24 given frequency fpWith weighing belt 26 Running frequency fcData when equal are accurate, to guarantee that active carbon concentrates the active carbon circular flow W of parsing activation subsystemX0With The active carbon circular flow of sintering process and the corresponding flue gas purification device of other each process reaches balance, to guarantee entire more Process flue gas purification system can be realized synchronous, even running, and operational efficiency is best.
According to multi-process flue gas purification system provided by the above embodiment, as shown in fig. 6, the embodiment of the present application provides one kind The control method of multi-process flue gas purification system is applied to multi-process flue gas purification system provided by the above embodiment, the control Method the following steps are included:
S1, t is determinedniThe active carbon circular flow W of flue gas purification device in moment corresponding process nXn(tni)；Wherein, n is The serial number of each process in multi-process flue gas purification system；tni=t-Tni, TniIt is corresponding at the i moment for flue gas purification device in process n Pollution active carbon transport to active carbon concentrate parsing activation subsystem time；
S2, according to the active carbon circular flow W of flue gas purification device in the process nXn(tni), determine t pairs of current time The active carbon answered concentrates the active carbon circular flow W of parsing activation subsystemX0；
S3, the active carbon circular flow W that parsing activation subsystem is concentrated according to the active carbonX0, adjust under weighing belt Stream amount WC；And obtain WC=WX0When the corresponding weighing belt running frequency fc；
S4, the running frequency f according to the weighing beltc, adjust and be fed in the active carbon concentration parsing activation subsystem The given frequency f of devicegWith the given frequency f of discharge devicep, to realize the control to multi-process flue gas purification system.
Optionally, as shown in fig. 7, determining t according to the following stepsniThe work of flue gas purification device in moment corresponding process n Property charcoal circular flow WXn(tni):
S21, the former amount of flue gas emission V generated in process of production according to process nn, and according to the following formula, calculate tniMoment pair The SO in the former flue gas answered2And NOXTotal flow；
WSn(tni)=Vn×CSn/106；
WNn(tni)=Vn×CNn/106；
In formula, WSn(tni)It is process n in tniSO in moment corresponding former flue gas2Total flow, units/kg/h；WNn(tni)For Process n is in tniNO in moment corresponding former flue gasXTotal flow, units/kg/h；CSnIt is process n in tniMoment corresponding former cigarette SO in gas2Concentration, unit mg/Nm3；CNnIt is process n in tniNO in moment corresponding former flue gasXConcentration, unit mg/Nm3；
S22, according to the SO in the former flue gas2And NOXTotal flow and following formula calculate tniIn moment corresponding process n The active carbon circular flow W of flue gas purification deviceXn(tni)；
WXn(tni)=K1×WSn(tni)+K2×WNn(tni)；
In formula, WXn(tni)For the corresponding t of flue gas purification device in process nniThe active carbon circular flow at moment, units/kg/ h；K1For the first coefficient, value range is 15~21；K2For the second coefficient, value range is 3~5.
Optionally, the corresponding active carbon of the determining current time t concentrates the active carbon recycle stream of parsing activation subsystem Measure WX0The step of include:
According to the following formula, according to the active carbon circular flow W of flue gas purification device in the process nXn(tni), when determining current Carve the active carbon circular flow W that the corresponding active carbon of t concentrates parsing activation subsystemX0；
WX0=∑ WXn(tni)=∑ WXn(t-Tni)；
In formula, t is current time, TniFor flue gas purification device in process n i moment corresponding pollution active carbon transport to Active carbon concentrates the time of parsing activation subsystem.
Optionally, determine that the corresponding active carbon of current time t concentrates the activity of parsing activation subsystem according to the following steps Charcoal circular flow WX0:
Determine the supplement flow W of the new active carbon of supplement of the new active carbon supplementary deviceIt mends, according to the supplement flow WIt mends, control the new active carbon supplementary device and supplement new active carbon into gross activity charcoal storehouse；
According to the active carbon circular flow W of flue gas purification device in the process nXn(tni), supplement flow WIt mends, and under Formula determines that the corresponding active carbon of current time t concentrates the active carbon circular flow W of parsing activation subsystemX0；
WX0=∑ WXn(t-Tni)+WIt mends。
Optionally, as shown in figure 8, determining the new active carbon of supplement of the new active carbon supplementary device according to the following steps Supplement flow WIt mends:
The active carbon circular flow W of parsing activation subsystem is concentrated according to the active carbonX0, according to the following formula, determine activity Charcoal concentrates the active carbon of Analytic Tower in parsing activation subsystem to load doses Q0；
Q0=WX0×T0；
In formula, Q0The active carbon of Analytic Tower in parsing activation subsystem is concentrated to load doses, units/kg for active carbon；T0For The residence time of active carbon in Analytic Tower, value range 4~8, unit h；
Detect the substantial activity charcoal doses Q that the active carbon concentrates activated carbon storehouse in parsing activation subsystemIt is real；
Doses Q is loaded according to the active carbon of the Analytic Tower0With substantial activity charcoal doses QIt is real, according to formula QDamage=Q0-QIt is real, really Determine loss active carbon doses Q of the active carbon after the screening plant screening processDamage；
Control the supplement active carbon doses Q of the new active carbon supplementary deviceIt mendsWith loss active carbon doses QDamageIt is equal, according to Supplement active carbon doses Q adjustedIt mends, determine the supplement stream of the new active carbon of supplement of the new active carbon supplementary device of unit time Measure WIt mends。
Optionally, as steps described below according to the running frequency f of the weighing beltc, adjust the active carbon and concentrate parsing Activate the given frequency f of charging gear in subsystemgWith the given frequency f of discharge devicep:
Determine the blanking flow W of the weighing beltC=Kc×fc, the blanking flow W of charging gearG=Kg×fg, discharge dress The blanking flow W setP=Kp×fp；In formula, Kc, KgAnd KpIt is constant；
Control the blanking flow that the active carbon concentrates the charging gear of parsing activation subsystem, discharge device and weighing belt It is identical, so that WG=WP=WC=WX0；
According to above formula, the given frequency f of the charging gear is obtainedgWith the running frequency f of weighing beltcBetween meet following formula Relationship:According to the running frequency f of above formula and weighing beltc, adjust the given frequency f of charging gearg；And
Obtain the given frequency f of the discharge devicepWith the running frequency f of weighing beltcBetween meet following formula relationship:According to the running frequency f of above formula and weighing beltc, adjust the given frequency f of discharge devicep。
The third aspect, according to multi-process flue gas purification system provided by the above embodiment, as shown in figure 9, the application is implemented Example provides a kind of control method of multi-process flue gas purification system, is applied to multi-process gas cleaning provided by the above embodiment system System, the control method the following steps are included:
S71, the active carbon circular flow W for determining flue gas purification device in the corresponding sintering process of current time tX01；With And determine tniThe active carbon circular flow W of flue gas purification device in moment corresponding process nXn(tni)；Wherein, n is multi-process cigarette The serial number of each process in gas purification system；tni=t-Tni, TniFor flue gas purification device in process n, at the i moment, corresponding pollution is lived Property charcoal transport to active carbon concentrate parsing activation subsystem time；
S72, according to the active carbon circular flow W of flue gas purification device in the process nXn(tni)With flue gas in sintering process The active carbon circular flow W of purification deviceX01And following formula, determine that the corresponding active carbon of current time t concentrates parsing activator The active carbon circular flow W of systemX0；
WX0=∑ WXn(t-Tni)+WX01；
S73, the active carbon circular flow W that parsing activation subsystem is concentrated according to the active carbonX0, adjust under weighing belt Stream amount WC；And obtain WC=WX0-WX01When the corresponding weighing belt running frequency fc；
S74, the running frequency f according to the weighing beltc, adjust and be fed in the active carbon concentration parsing activation subsystem The given frequency f of devicegWith the given frequency f of discharge devicep, to realize the control to multi-process flue gas purification system.
Optionally, further includes:
According to the active carbon circular flow W of flue gas purification device in the sintering processX01And formula WUnload 1=WX01× j, Determine the discharging flow W of sintering process device for dischargingUnload 1；Wherein, j is coefficient, and value range is 0.9~0.97；And control The discharging flow W of the process n device for dischargingUnload 2For maximum.
Fourth aspect, according to multi-process flue gas purification system provided by the above embodiment, as shown in Figure 10, the application is implemented Example provides a kind of control method of multi-process flue gas purification system, is applied to multi-process gas cleaning provided by the above embodiment system System, the control method the following steps are included:
S81, the active carbon circular flow W for determining flue gas purification device in the corresponding sintering process of current time tX01, determine tniThe active carbon circular flow W of flue gas purification device in moment corresponding process nXn(tni)；And determine new active carbon supplement dress The supplement flow W for the new active carbon of supplement setIt mends；Wherein, n is the serial number of each process in multi-process flue gas purification system；tni=t- Tni, TniIt is transported in i moment corresponding pollution active carbon to active carbon for flue gas purification device in process n and concentrates parsing activator The time of system；
S82, according to the active carbon circular flow W of flue gas purification device in the process nXn(tni), flue gas in sintering process The active carbon circular flow W of purification deviceX01With supplement flow WIt mendsAnd following formula, determine the corresponding active carbon collection of current time t The active carbon circular flow W of middle parsing activation subsystemX0；
WX0=∑ WXn(t-Tni)+WIt mends+WX01；
S83, the active carbon circular flow W that parsing activation subsystem is concentrated according to the active carbonX0, adjust under weighing belt Stream amount WC；And obtain WC=WX0-WX01When the corresponding weighing belt running frequency fc；
S84, the running frequency f according to the weighing beltc, adjust and be fed in the active carbon concentration parsing activation subsystem The given frequency f of devicegWith the given frequency f of discharge devicep, to realize the control to multi-process flue gas purification system.
In the specific implementation, the present invention also provides a kind of computer storage mediums, wherein the computer storage medium can store There is program, which may include in each embodiment of control method of multi-process flue gas purification system provided by the invention when executing Some or all of step.The storage medium can be magnetic disk, CD, read-only memory (English: read-only Memory, referred to as: ROM) or random access memory (English: random access memory, referred to as: RAM) etc..
It is required that those skilled in the art can be understood that the technology in the embodiment of the present invention can add by software The mode of general hardware platform realize.Based on this understanding, the technical solution in the embodiment of the present invention substantially or Say that the part that contributes to existing technology can be embodied in the form of software products, which can deposit Storage is in storage medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that computer equipment (can be with It is personal computer, server or the network equipment etc.) execute certain part institutes of each embodiment of the present invention or embodiment The method stated.
Same and similar part may refer to each other between each embodiment in this specification.Especially for multi-process cigarette For the control method embodiment of gas purification system, since it is substantially similar to multi-process flue gas purification system embodiment, so It is described relatively simple, related place is referring to the explanation in multi-process flue gas purification system embodiment.
Invention described above embodiment is not intended to limit the scope of the present invention..

Claims (9)

1. a kind of control method of multi-process flue gas purification system, which is characterized in that the control method is applied to multi-process cigarette Gas purification system, the multi-process flue gas purification system include: that active carbon concentrates parsing activation subsystem, and active carbon conveys subsystem System, and flue gas purification device corresponding with each process, each flue gas purification device pass through active carbon respectively and convey subsystem System concentrates parsing activation subsystem connect with active carbon, and the active carbon concentrates parsing to activate subsystem for passing through active carbon The pollution active carbon concentration for each flue gas purification device discharge that transport subsystem is collected into carries out parsing activation processing；It is described more Process flue gas purification system further include: main control unit, and be used to control activity with what the main control unit was separately connected Charcoal concentrates the activator system control unit flue gas purification device corresponding with for controlling each process of parsing activation subsystem Process control unit；Wherein, it includes Analytic Tower that the active carbon, which concentrates parsing activation subsystem, is entered in Analytic Tower for controlling The charging gear for polluting active carbon flow, for filling the discharge of the activated carbon discharge in Analytic Tower after being activated It sets, the screening plant that the activated carbon for the discharge device to be discharged is sieved, after collecting screened device The activated carbon storehouse of obtained activated carbon, the outlet end and feed that the corresponding flue gas purification device of each process is arranged in fill Gross activity charcoal storehouse between setting, gross activity charcoal storehouse are used to collect in each process by the unified conveying of active carbon transport subsystem The pollution active carbon of flue gas purification device discharge, and, the weighing belt between gross activity charcoal storehouse and charging gear is set；
The control method the following steps are included:
Determine tniThe active carbon circular flow of flue gas purification device in moment corresponding process nWherein, n is multi-process cigarette The serial number of each process in gas purification system；tni=t-Tni, TniFor flue gas purification device in process n, at the i moment, corresponding pollution is lived Property charcoal transport to active carbon concentrate parsing activation subsystem time；
According to the active carbon circular flow of flue gas purification device in the process nDetermine the corresponding activity of current time t Charcoal concentrates the active carbon circular flow W of parsing activation subsystemX0；
The active carbon circular flow W of parsing activation subsystem is concentrated according to the active carbonX0, adjust the blanking flow of weighing belt WC；And obtain WC=WX0When the corresponding weighing belt running frequency fc；
According to the running frequency f of the weighing beltc, adjust the active carbon concentrate charging gear in parsing activation subsystem to Determine frequency fgWith the given frequency f of discharge devicep, to realize the control to multi-process flue gas purification system.
2. the method according to claim 1, wherein determining t as steps described belowniIn moment corresponding process n The active carbon circular flow of flue gas purification device
The former amount of flue gas emission V generated in process of production according to process nn, and according to the following formula, calculate tniMoment is corresponding described SO in former flue gas2And NOXTotal flow；
In formula,It is process n in tniSO in moment corresponding former flue gas2Total flow, units/kg/h；For process n In tniNO in moment corresponding former flue gasXTotal flow, units/kg/h；CSnIt is process n in tniIn moment corresponding former flue gas SO2Concentration, unit mg/Nm3；CNnIt is process n in tniNO in moment corresponding former flue gasXConcentration, unit mg/Nm3；
According to the SO in the former flue gas2And NOXTotal flow and following formula calculate tniGas cleaning in moment corresponding process n The active carbon circular flow of device
In formula,For the corresponding t of flue gas purification device in process nniThe active carbon circular flow at moment, units/kg/h；K1For First coefficient, value range are 15~21；K2For the second coefficient, value range is 3~5.
3. the method according to claim 1, wherein determining the corresponding activity of current time t as steps described below Charcoal concentrates the active carbon circular flow W of parsing activation subsystemX0:
According to the following formula, according to the active carbon circular flow of flue gas purification device in the process nDetermine t pairs of current time The active carbon answered concentrates the active carbon circular flow W of parsing activation subsystemX0；
In formula, t is current time, TniIt is transported in i moment corresponding pollution active carbon to activity for flue gas purification device in process n Charcoal concentrates the time of parsing activation subsystem.
4. the method according to claim 1, wherein the multi-process flue gas purification system further includes being arranged total New active carbon supplementary device above active carbon storehouse and the new charcoal control unit of the benefit for controlling new active carbon supplementary device, it is described New active carbon supplementary device is for supplementing new active carbon into gross activity charcoal storehouse；And current time t is determined as steps described below Corresponding active carbon concentrates the active carbon circular flow W of parsing activation subsystemX0:
Determine the supplement flow W of the new active carbon of supplement of new active carbon supplementary deviceIt mends, according to the supplement flow WIt mends, control The new active carbon supplementary device supplements new active carbon into gross activity charcoal storehouse；
According to the active carbon circular flow of flue gas purification device in the process nSupplement flow WIt mendsAnd following formula, it determines The corresponding active carbon of current time t concentrates the active carbon circular flow W of parsing activation subsystemX0；
5. according to the method described in claim 4, it is characterized in that, determining the benefit of new active carbon supplementary device as steps described below Fill the supplement flow W of new active carbonIt mends:
The active carbon circular flow W of parsing activation subsystem is concentrated according to the active carbonX0, according to the following formula, determine active carbon collection The active carbon of Analytic Tower loads doses Q in middle parsing activation subsystem0；
In formula, Q0The active carbon of Analytic Tower in parsing activation subsystem is concentrated to load doses, units/kg for active carbon；T0For parsing The residence time of active carbon in tower, value range 4~8, unit h；
Detect the substantial activity charcoal doses Q that the active carbon concentrates activated carbon storehouse in parsing activation subsystemIt is real；
Doses Q is loaded according to the active carbon of the Analytic Tower0With substantial activity charcoal doses QIt is real, according to formula QDamage=Q0-QIt is real, determine and live Loss active carbon doses Q of the property charcoal after the screening plant screening processDamage；
Control the supplement active carbon doses Q of the new active carbon supplementary deviceIt mendsWith loss active carbon doses QDamageIt is equal, according to adjustment Supplement active carbon doses Q afterwardsIt mends, determine the supplement flow of the new active carbon of supplement of the new active carbon supplementary device of unit time WIt mends。
6. the method according to claim 1, wherein as steps described below according to the running frequency of the weighing belt fc, adjust the given frequency f that the active carbon concentrates charging gear in parsing activation subsystemgWith the given frequency of discharge device fp:
Determine the blanking flow W of the weighing beltC=Kc×fc, the blanking flow W of charging gearG=Kg×fg, discharge device Blanking flow WP=Kp×fp；In formula, Kc, KgAnd KpIt is constant；
Control the blanking flow phase that the active carbon concentrates the charging gear of parsing activation subsystem, discharge device and weighing belt Together, so that WG=WP=WC=WX0；
According to above formula, the given frequency f of the charging gear is obtainedgWith the running frequency f of weighing beltcBetween meet following formula relationship:According to the running frequency f of above formula and weighing beltc, adjust the given frequency f of charging gearg；And
Obtain the given frequency f of the discharge devicepWith the running frequency f of weighing beltcBetween meet following formula relationship:With According to above formula and the running frequency f of weighing beltc, adjust the given frequency f of discharge devicep。
7. a kind of control method of multi-process flue gas purification system, which is characterized in that the control method is applied to multi-process cigarette Gas purification system, the multi-process flue gas purification system include: that active carbon concentrates parsing activation subsystem, and active carbon conveys subsystem System, and flue gas purification device corresponding with each process, each flue gas purification device pass through active carbon respectively and convey subsystem System concentrates parsing activation subsystem connect with active carbon, and the active carbon concentrates parsing to activate subsystem for passing through active carbon The pollution active carbon concentration for each flue gas purification device discharge that transport subsystem is collected into carries out parsing activation processing；It is described more Process flue gas purification system further include: main control unit, and be used to control activity with what the main control unit was separately connected Charcoal concentrates the activator system control unit flue gas purification device corresponding with for controlling each process of parsing activation subsystem Process control unit；Wherein, it includes Analytic Tower that the active carbon, which concentrates parsing activation subsystem, is entered in Analytic Tower for controlling The charging gear for polluting active carbon flow, for filling the discharge of the activated carbon discharge in Analytic Tower after being activated It sets, the screening plant that the activated carbon for the discharge device to be discharged is sieved, after collecting screened device The activated carbon storehouse of obtained activated carbon, the outlet end and feed that the corresponding flue gas purification device of each process is arranged in fill Gross activity charcoal storehouse between setting, gross activity charcoal storehouse are used to collect in each process by the unified conveying of active carbon transport subsystem The pollution active carbon of flue gas purification device discharge, and, the weighing belt between gross activity charcoal storehouse and charging gear is set； The multi-process flue gas purification system further include: be set to the active carbon and concentrate the sintering process of parsing activation subsystem corresponding Flue gas purification device, and, the sintering process control unit in flue gas purification device in sintering process；The agglomerant Sequence control unit is connect with main control unit；
The control method the following steps are included:
Determine the active carbon circular flow of flue gas purification device in the corresponding sintering process of current time tAnd determine tni The active carbon circular flow of flue gas purification device in moment corresponding process nWherein, n is multi-process gas cleaning system The serial number of each process in system；tni=t-Tni, TniIt is flue gas purification device in process n in the corresponding pollution active carbon transport of i moment The time of parsing activation subsystem is concentrated to active carbon；
According to the active carbon circular flow of flue gas purification device in the process nWith flue gas purification device in sintering process Active carbon circular flowAnd following formula, determine that the corresponding active carbon of current time t concentrates the work of parsing activation subsystem Property charcoal circular flow WX0；
The active carbon circular flow W of parsing activation subsystem is concentrated according to the active carbonX0, adjust the blanking flow of weighing belt WC；And it obtainsWhen the corresponding weighing belt running frequency fc；
According to the running frequency f of the weighing beltc, adjust the active carbon concentrate charging gear in parsing activation subsystem to Determine frequency fgWith the given frequency f of discharge devicep, to realize the control to multi-process flue gas purification system.
8. the method according to the description of claim 7 is characterized in that further include:
According to the active carbon circular flow of flue gas purification device in the sintering processAnd formulaIt determines The discharging flow W of sintering process device for dischargingUnload 1；Wherein, j is coefficient, and value range is 0.9~0.97；And described in control The discharging flow W of process n device for dischargingUnload 2For maximum.
9. a kind of control method of multi-process flue gas purification system, which is characterized in that the control method is applied to multi-process cigarette Gas purification system, the multi-process flue gas purification system include: that active carbon concentrates parsing activation subsystem, and active carbon conveys subsystem System, and flue gas purification device corresponding with each process, each flue gas purification device pass through active carbon respectively and convey subsystem System concentrates parsing activation subsystem connect with active carbon, and the active carbon concentrates parsing to activate subsystem for passing through active carbon The pollution active carbon concentration for each flue gas purification device discharge that transport subsystem is collected into carries out parsing activation processing；It is described more Process flue gas purification system further include: main control unit, and be used to control activity with what the main control unit was separately connected Charcoal concentrates the activator system control unit flue gas purification device corresponding with for controlling each process of parsing activation subsystem Process control unit；Wherein, it includes Analytic Tower that the active carbon, which concentrates parsing activation subsystem, is entered in Analytic Tower for controlling The charging gear for polluting active carbon flow, for filling the discharge of the activated carbon discharge in Analytic Tower after being activated It sets, the screening plant that the activated carbon for the discharge device to be discharged is sieved, after collecting screened device The activated carbon storehouse of obtained activated carbon, the outlet end and feed that the corresponding flue gas purification device of each process is arranged in fill Gross activity charcoal storehouse between setting, gross activity charcoal storehouse are used to collect in each process by the unified conveying of active carbon transport subsystem The pollution active carbon of flue gas purification device discharge, and, the weighing belt between gross activity charcoal storehouse and charging gear is set； The multi-process flue gas purification system further include: the new active carbon supplementary device above gross activity charcoal storehouse is set, for controlling The new charcoal control unit of benefit of new active carbon supplementary device, the new active carbon supplementary device are used to supplement into gross activity charcoal storehouse new Active carbon；It is set to the corresponding flue gas purification device of sintering process that the active carbon concentrates parsing activation subsystem, and, position Sintering process control unit in sintering process in flue gas purification device；The sintering process control unit and main control unit Connection；
The control method the following steps are included:
Determine the active carbon circular flow of flue gas purification device in the corresponding sintering process of current time tDetermine tniMoment The active carbon circular flow of flue gas purification device in corresponding process nAnd determine the benefit of new active carbon supplementary device Fill the supplement flow W of new active carbonIt mends；Wherein, n is the serial number of each process in multi-process flue gas purification system；tni=t-Tni, Tni It is transported in i moment corresponding pollution active carbon to active carbon for flue gas purification device in process n and concentrates parsing activation subsystem Time；
According to the active carbon circular flow of flue gas purification device in the process nFlue gas purification device in sintering process Active carbon circular flowWith supplement flow WIt mendsAnd following formula, determine that the corresponding active carbon of current time t concentrates parsing activation The active carbon circular flow W of subsystemX0；
The active carbon circular flow W of parsing activation subsystem is concentrated according to the active carbonX0, adjust the blanking flow of weighing belt WC；And it obtainsWhen the corresponding weighing belt running frequency fc；
According to the running frequency f of the weighing beltc, adjust the active carbon concentrate charging gear in parsing activation subsystem to Determine frequency fgWith the given frequency f of discharge devicep, to realize the control to multi-process flue gas purification system.
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