WO2019214272A1 - Système de traitement de purification de gaz de combustion à conditions multiples de travail centralisés et indépendants et son procédé de commande - Google Patents

Système de traitement de purification de gaz de combustion à conditions multiples de travail centralisés et indépendants et son procédé de commande Download PDF

Info

Publication number
WO2019214272A1
WO2019214272A1 PCT/CN2019/070503 CN2019070503W WO2019214272A1 WO 2019214272 A1 WO2019214272 A1 WO 2019214272A1 CN 2019070503 W CN2019070503 W CN 2019070503W WO 2019214272 A1 WO2019214272 A1 WO 2019214272A1
Authority
WO
WIPO (PCT)
Prior art keywords
activated carbon
flue gas
unit
carbon adsorption
unit group
Prior art date
Application number
PCT/CN2019/070503
Other languages
English (en)
Chinese (zh)
Inventor
叶恒棣
刘昌齐
魏进超
Original Assignee
中冶长天国际工程有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中冶长天国际工程有限责任公司 filed Critical 中冶长天国际工程有限责任公司
Priority to BR112020011439-1A priority Critical patent/BR112020011439A2/pt
Priority to RU2020119849A priority patent/RU2753521C1/ru
Priority to KR1020207013428A priority patent/KR102318354B1/ko
Priority to MYPI2020002560A priority patent/MY194554A/en
Publication of WO2019214272A1 publication Critical patent/WO2019214272A1/fr
Priority to PH12020550672A priority patent/PH12020550672A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B01D53/08—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds according to the "moving bed" method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/202—Single element halogens
    • B01D2257/2027—Fluorine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/402—Further details for adsorption processes and devices using two beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/403—Further details for adsorption processes and devices using three beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/404—Further details for adsorption processes and devices using four beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/406—Further details for adsorption processes and devices using more than four beds

Definitions

  • the invention relates to an activated carbon flue gas purification system and a control method thereof, in particular to an activated carbon treatment multi-condition flue gas purification system and a control method thereof, and belongs to the technical field of gas purification.
  • Iron and steel enterprises are the pillars of the entire national economy. However, while making important contributions to economic development, they are also accompanied by serious pollution problems.
  • smoke emissions such as sintering, pelletizing, coking, iron making, steel making and steel rolling.
  • the flue gas emitted in each process contains a large amount of dust, SO 2 and NO X. Contaminants. When polluted smoke is emitted into the atmosphere, it not only pollutes the environment, but also poses a threat to human health.
  • the flue gas purification device contains a material having an adsorption function (for example, activated carbon) to adsorb flue gas, so as to purify the flue gas discharged from each process.
  • adsorption function for example, activated carbon
  • FIG. 1 shows an activated carbon flue gas purification system, which comprises: an adsorption tower for purifying the original flue gas and discharging the polluted activated carbon, for activated charcoal pollution, discharged desorber activated carbon for recycling acid subsystem (not shown) SO 2 and NO X pollutants, as well, the two conveyors activated carbon.
  • the first conveyor transporting the activated carbon into the adsorber via the feed means, the material layer is formed of activated carbon in the adsorption tower while containing SO 2 and primary flue gas NO X pollutants continue to enter the adsorption column, and further into the active carbon material layer, so that the original flue gas sO 2 and NO X adsorbed by activated charcoal, thus becoming the clean flue gas is discharged.
  • Discharge means continuous operation of the adsorption tower, the adsorption tower enriched with SO 2 and NO X pollution discharge of activated carbon, and then conveyed by the second conveyor to the desorber.
  • a second output conveyor conveying contaminated activated carbon into the analytical device via a live feed column, so that the SO 2 and NO X and other contaminants from a contaminated precipitation of the activated carbon, thereby becoming activated carbon.
  • One application mode of the activated carbon flue gas purification system shown in Figure 1 is that the enterprise sets a set of adsorption towers and a set of analytical towers in each flue gas discharge process, and each pair of adsorption towers and analytical towers work simultaneously to complete the enterprise Purification of contaminated flue gas produced by each process. Due to the scale of each process and the amount of smoke generated by the steel company, in order to achieve the best flue gas purification effect, different scale processes need to set up a scale-matched flue gas purification device, resulting in a flue gas purification device installed in the steel enterprise. There are many types.
  • the national and industry have different emission standards for flue gas generated by various processes, such as coking process smoke.
  • the gas emission standard is sulfur dioxide content less than 30mg/Nm 3 and nitrogen oxide content less than 150mg/Nm 3 , but for the sintering process, the emission standard is sulfur dioxide content less than 180mg/Nm 3 and nitrogen oxide content less than 300mg/ Nm 3 , ultra-low emission standards require a sulfur dioxide content of less than 35 mg/Nm 3 and a nitrogen oxide content of less than 50 mg/Nm 3 .
  • the flue gas generated in different processes is different from the pollutant emission standards of the flue gas discharged through the activated carbon adsorption tower. If the flue gas of the multi-process is combined, the activated carbon adsorption tower is used for purification treatment, and the discharged smoke is treated.
  • the content of pollutants in the gas is the same, but if it is discharged at the lowest standard of all process flue gas emission standards, it is clear that the air is polluted and does not meet the industry standards; if it is discharged at the highest standard of all process flue gas emission standards, it is extremely Increased operating costs.
  • a multi-condition flue gas concentration independent purification treatment system is provided.
  • the discharge port of the analytical column is connected to the feed port of each activated carbon adsorption unit or unit group through a second activated carbon conveying device.
  • the flue gas generated in each working condition of the multi-condition flue gas is independently connected to the inlet of one or more independent activated carbon adsorption units or unit groups through the flue gas conveying pipeline.
  • the system further includes an exhaust duct, a chimney.
  • An exhaust pipe is connected to the outlet of each activated carbon adsorption unit or unit group.
  • the exhaust duct is connected to the chimney.
  • all of the activated carbon adsorption units or the exhaust ducts connected to the outlet of the unit group are combined and connected to the chimney for uniform discharge.
  • one or more separate activated carbon adsorption units or unit groups are connected to the exhaust ducts of the unit outlets and are separately connected to a chimney for separate discharge.
  • the exhaust ducts connected to the outlet ports of the n independent activated carbon adsorption units or unit groups are connected to j chims; wherein: 1 ⁇ j ⁇ n.
  • n independent activated carbon adsorption units or groups of units are closely arranged, or n independent activated carbon adsorption units or groups of units are spaced apart from each other; preferably, adjacent to said activated carbon adsorption unit or unit group
  • the gap is from 10 to 5000 cm, preferably from 20 to 3000 cm, more preferably from 50 to 2000 cm.
  • An activated carbon adsorption unit or a group of exhaust pipes connected to the unit A to generate flue gas is connected to one chimney.
  • One or two activated carbon adsorption units or groups of exhaust pipes connected to the B operating conditions to generate flue gas are connected to one chimney.
  • An activated carbon adsorption unit or a unit-connected exhaust pipe that processes the C operating conditions to generate flue gas is connected to one chimney.
  • the first activated carbon conveying device and the second activated carbon conveying device are a "Z"-shaped or anti-"Z"-shaped integral conveyor, or the first activated carbon conveying device and the second activated carbon conveying device respectively comprise a plurality of conveying devices. .
  • the activated carbon adsorption unit or the unit group is independently a single-stage activated carbon adsorption unit or unit group, or a multi-stage activated carbon adsorption unit or unit group.
  • the system further comprises a feeding device and a discharging device.
  • a feed device is provided on the top of each activated carbon adsorption unit or unit group.
  • the second activated carbon conveying apparatus is connected to the feed port of each activated carbon adsorption unit or unit group through a separate feeding device.
  • Each of the activated carbon adsorption units or the discharge ports of the unit group is provided with a discharge device.
  • the discharge port of the activated carbon adsorption unit or the unit group is connected to the first activated carbon conveying device through a discharge device.
  • a multi-condition flue gas concentration independent purification treatment method is provided.
  • the integrated tower in the flue gas treatment system is provided with n activated carbon adsorption units or unit groups and one analytical tower, and n activated carbon adsorption units or unit groups are independent of each other and arranged in parallel;
  • the flue gas is generated at the working condition of m, and the flue gas generated by each working condition is transported to the h activated carbon adsorption unit or unit group through the flue gas conveying pipeline, and the activated carbon adsorption unit or unit group is transported to the flue gas conveying pipeline connected to each other.
  • the flue gas is subjected to adsorption treatment, and the flue gas treated by the activated carbon adsorption unit or the unit group is discharged from the outlet of the activated carbon adsorption unit or the unit group;
  • the treated flue gas discharged from the n activated carbon adsorption units or the unit group outlet is discharged through each chimney; wherein: 1 ⁇ j ⁇ n.
  • the step 3) is specifically: the h activated carbon adsorption unit or the unit group processes the flue gas in a working condition, and detects the content of the pollutant in the flue gas generated by the working condition, and the flow rate of the flue gas generated in the working condition, The flow rate of the pollutants in the flue gas is obtained by the working condition.
  • the flow rate of the pollutants in the flue gas is generated according to the working condition, and the flow rate of the activated carbon in the activated carbon adsorption unit or the unit group for generating the flue gas in the working condition is determined.
  • the flow rate of the pollutant in the flue gas is calculated according to the following formula:
  • C si is the content of pollutant SO 2 in the flue gas generated at i working condition, mg/Nm 3 ;
  • V i is the flow of flue gas generated at the i condition, Nm 3 /h;
  • the flow rate of the activated carbon in each activated carbon adsorption unit or unit group that processes the flue gas is determined according to the following formula:
  • Q xi is the flow rate of activated carbon in each activated carbon adsorption unit or unit group for generating flue gas in i working condition, kg/h;
  • h i is the number of activated carbon adsorption units or groups of units that generate flue gas for processing i;
  • K 1 is a constant, generally 15 to 21;
  • K 2 is a constant, generally taking 3 to 4.
  • the flow rate of the activated carbon in the column is analyzed as follows:
  • Q x is the flow rate of activated carbon in the analytical column, kg / h;
  • Q xi is the flow rate of activated carbon in each activated carbon adsorption unit or unit group for generating flue gas in i working condition, kg/h;
  • the flow rate of the activated carbon in each of the activated carbon adsorption units or the unit group generating the flue gas according to the processing i condition is determined, and the flow rate of the feeding device and the discharging device of each activated carbon adsorption unit or unit group for treating the working condition flue gas is determined.
  • Q i is the flow rate of the discharge device of each activated carbon adsorption unit or unit group for generating flue gas in the i working condition, kg / h;
  • Q xi is the flow rate of activated carbon in each activated carbon adsorption unit or unit group for generating flue gas in i working condition, kg/h;
  • the activated carbon adsorption unit or unit group may also be referred to as an activated carbon adsorption unit or an activated carbon adsorption unit group.
  • the activated carbon adsorption unit (or activated carbon adsorption unit group) is a complete activated carbon adsorption unit, which functions similarly to a complete activated carbon adsorption tower in the prior art.
  • the integrated tower is a concentrator in which a plurality of independent activated carbon adsorption units or unit groups are arranged in parallel to realize a plurality of independent activated carbon adsorption units, which are similarly arranged in parallel with a plurality of activated carbon adsorption towers.
  • the analytical system comprises: the activated carbon analytical tower, a feeding device for controlling the flow rate of the contaminated activated carbon entering the analytical tower, and a discharging device for discharging the activated activated carbon in the analytical tower after the activation treatment, for
  • the sieving device for sieving activated activated carbon discharged from the discharge device is used for collecting the activated activated carbon activated carbon activated by the sieving device, and is disposed at the outlet end and the feeding material of the flue gas purification device corresponding to each process a total activated carbon cartridge between the devices, the total activated carbon cartridge is used to collect the polluted activated carbon discharged from the flue gas purification device in each process, and a belt scale disposed between the total activated carbon cartridge and the feeding device, the belt scale
  • the contaminated activated carbon in the total activated carbon cartridge is transported to the analytical tower, and a new activated carbon replenishing device is disposed above the total activated carbon cartridge.
  • the new activated carbon replenishing device is used for replenishing the new activated carbon
  • one or more activated carbon adsorption units or unit groups are independently set for each flue gas discharge working condition, and an activated carbon adsorption unit or unit group for treating a plurality of working condition flue gases is provided with a centralized analysis of concentrated activated carbon.
  • the tower corresponds to some or all of the adsorption towers in the whole plant, so that the analytical tower has a one-to-many correspondence relationship with the activated carbon adsorption unit or the unit group.
  • the flow rate of the raw flue gas entering the activated carbon adsorption unit or unit group, the content of pollutants in the original flue gas, and the circulating flow rate of the activated carbon in the adsorption tower are the main factors affecting the purification effect of the flue gas, for example, when the original flue gas flow rate is increased.
  • the circulating flow rate of activated carbon in the activated carbon adsorption unit or unit group needs to be quantitatively increased at the same time to ensure the purification effect of the flue gas. Otherwise, the activated carbon is saturated and the original flue gas appears. A part of the pollutants have not been adsorbed, thereby reducing the purification effect.
  • the present invention proposes to treat the flue gas of a working condition according to each activated carbon adsorption unit or unit group, and detect the content of the pollutants in the flue gas generated by the working condition, and the flow rate of the flue gas generated at the working condition, and obtain the work.
  • the flow rate of the pollutants in the flue gas is generated; according to the working condition, the flow rate of the pollutants in the flue gas is generated, and the flow rate of the activated carbon in the activated carbon adsorption unit or the unit group that generates the flue gas is determined.
  • the relationship between the circulating flow rate of activated carbon in the adsorption tower and the original flue gas flow rate is balanced.
  • the polluted activated carbon treated by the analytical tower comes from the activated carbon adsorption unit or unit group set in different processes, equipment failure, production plan adjustment and other factors, so that the stability of the activated carbon output from the adsorption tower of different processes will also fluctuate, therefore, according to the basis
  • the flow rate of activated carbon in each activated carbon adsorption unit or unit group for generating flue gas in the i working condition is determined, and the flow rate of the feeding device and the discharging device for treating the flue gas activated carbon adsorption unit or unit group of the working condition is determined, and the activated carbon in the column is analyzed.
  • the flow rate thereby controlling the balance between the treatment capacity of the analytical tower for the contaminated activated carbon and the amount of activated carbon discharged from the plurality of adsorption towers.
  • the purification treatment system simultaneously processes the flue gas generated by the multi-condition
  • the purification treatment system includes a plurality of activated carbon adsorption units or unit groups and a resolving tower, and the plurality of activated carbon adsorption units or unit groups and one analytical tower are disposed at In the same area, the activated carbon transportation between multiple activated carbon adsorption units or unit groups and the analytical tower is realized by two activated carbon conveying equipments (first activated carbon conveying equipment and second activated carbon conveying equipment), wherein the first activated carbon conveying equipment will be multiple
  • the activated carbon adsorption unit or the unit group discharges the activated carbon transport analytical tower adsorbed by the pollutant, and the second activated carbon conveying device transports the analyzed activated carbon (including the activated carbon adsorption unit or the activated carbon fed from the unit group and the additional supplemented new activated carbon) to Each activated carbon adsorption unit or unit group can complete the transportation and transportation of the entire activated carbon through two activated carbon
  • the activated carbon adsorption unit or the unit group is dispersedly arranged, and the analyzed activated carbon is transported to each activated carbon adsorption unit or unit group, due to steel.
  • the enterprise has a wide layout, covers a wide area, and has a long transmission distance.
  • the use of activated carbon is long-term and continuous.
  • the cost of transporting activated carbon is high, and it is necessary to design a special transportation route and waste resources.
  • the conventional design of an analytical column for an activated carbon adsorption tower in the prior art is also changed.
  • the analytical tower of the present invention is equipped with a plurality of activated carbon adsorption units or units, which reduces the input of the analytical tower and improves the utilization rate of the analytical tower. Work efficiency.
  • the flue gas generated by the multiple operating conditions is sent to the activated carbon adsorption unit or unit group of the purification treatment system through the flue gas conveying pipeline, wherein the flue gas generated by each working condition passes through an independent flue gas conveying pipeline. It is sent to one or more independent activated carbon adsorption units or units, that is to say, one or more activated carbon adsorption units or units are used to treat the flue gas generated in one working condition, and the flue gas generated in each working condition is treated independently.
  • the design of the flue gas treatment alone flexibly adapts to the problems of different pollutants in the flue gas and different emission standards in each process.
  • the content of sulfur dioxide is about 100 mg/Nm 3 and the content of nitrogen oxide is 300-1500 mg/Nm 3 ; for the flue gas generated in the sintering process, the content of sulfur dioxide is 400-2000 mg/Nm. 3.
  • the nitrogen oxide content is 300-450 mg/Nm 3 ; the flue gas generated in the iron making process has a sulfur dioxide content of 80-150 mg/Nm 3 and a nitrogen oxide content of 50-100 mg/Nm 3 .
  • the national and related industries have different emission standards for flue gas generated by different processes.
  • the sulfur dioxide content is less than 30 mg/Nm 3 and the nitrogen oxide content is less than 150 mg/Nm 3 ;
  • the content of sulfur dioxide is less than 180mg/Nm 3 and the content of nitrogen oxide is less than 300mg/Nm 3 .
  • the ultra-low emission standard of sintering flue gas requires that the content of sulfur dioxide is less than 35mg/Nm 3 , nitrogen oxides.
  • the content is less than 50 mg/Nm 3 ; the sulfur dioxide content in the ironmaking process is less than 100 mg/Nm 3 and the nitrogen oxide content is less than 300 mg/Nm 3 .
  • the treatment amount of the adsorption tower is invisibly increased.
  • the content of sulfur dioxide in the flue gas generated in the coking process is small, the sulfur dioxide generated in the flue gas generated in the sintering process is large, and after mixing, the sulfur dioxide in the flue gas in the coking process is increased, and the high sulfur dioxide content in the activated carbon adsorption tower is increased.
  • the amount of smoke processed is increased.
  • the content of each component (such as sulfur dioxide and nitrogen oxides) in the flue gas generated by different processes is different, and the focus of the flue gas generated by the different processes is different.
  • the flue gas generated by any one of the processes needs to be subjected to desulfurization and out-of-stock treatment, so that the content of pollutants in the flue gas generated by each process is low. It can only be discharged under the national emission standards.
  • the coking process, the sintering process, and the ironmaking process produce different amounts of pollutants in the flue gas, and the state produces flue gas from the three processes.
  • the prescribed emission standards are also different.
  • the coking process is compared with the sintering process: in the flue gas generated by the coking process, the sulfur dioxide content is less, and the content of nitrogen oxides is higher, then in the adsorption process, the focus is on the treatment of nitrogen oxides, in the activated carbon adsorption unit or unit In the group, the amount of ammonia gas to be injected is large; in the flue gas generated in the sintering process, the sulfur dioxide content is large, and the content of nitrogen oxides is small, then in the adsorption treatment process, the focus is on the treatment of sulfur dioxide, in the activated carbon adsorption unit. Or the amount of ammonia that needs to be injected in the unit group is small.
  • the content of sulfur dioxide and the content of nitrogen oxides are both low, so in the adsorption process, the smoke generated by the coke gasification and sintering is relatively easy to handle, and only needs to be carried out.
  • Simple desulfurization and out-of-stock treatment can be discharged; if this part of flue gas is mixed with coking and/or sintering flue gas and then treated, the throughput of the purification adsorption system is obviously increased.
  • the invention changes the conventional technology in the prior art that the flue gas generated by different working conditions is mixed and then processed together by the activated carbon adsorption tower, and the flue gas generated by different working conditions is adsorbed by the independent activated carbon adsorption unit or the unit group, according to
  • the characteristics of the flue gas produced by different working conditions, the adaptive use of different adsorption treatment schemes, can not only effectively treat the flue gas generated by each process, so that the treated flue gas can fully meet the specified emission standards, and the most economical efficiency can be adopted.
  • the technical solution realizes flue gas treatment, which has high processing efficiency and cost saving.
  • the flue gas is produced by a variety of different working conditions, the composition and temperature of various flue gases are different; if the flue gases generated by various working conditions are directly combined, the treatment of the adsorption tower will be greatly increased. Load, wasting resources.
  • the integrated tower comprises a plurality of activated carbon adsorption units or unit groups, and the flue gas generated in each working condition is processed by one or more independent activated carbon adsorption units or unit groups, according to each work
  • the characteristics of the flue gas are generated, and the process conditions of the activated carbon adsorption unit or the unit group for treating the flue gas of the working condition are selected and adjusted, and the most suitable adsorption environment is selected to improve the efficiency of the entire adsorption process.
  • the residence time of the activated carbon in the activated carbon adsorption unit or the unit group for treating the flue gas is adjusted (by controlling the progress of the activated carbon)
  • the material speed and discharge speed are realized), the adsorption treatment temperature (by controlling the intake temperature of the original flue gas, the heat preservation device, etc.), etc., so that the flue gas generated in each working condition adopts the most economical and effective adsorption.
  • the treatment method removes pollutants, improves processing efficiency, and reduces processing costs.
  • the amount of flue gas generated by the working condition flexible selection of one, two or a plurality of activated carbon adsorption units or unit groups to treat the flue gas generated by the working condition. If the amount of flue gas generated in a certain working condition is small, and one activated carbon adsorption unit or unit group is sufficient for treatment, one activated carbon adsorption unit or unit group in the integrated tower is selected to treat the flue gas of the working condition; even if the work The amount of flue gas is small, and the residence time of the activated carbon in the activated carbon adsorption unit or unit group is shortened under the premise of ensuring the treatment effect, and the adsorption treatment efficiency is improved.
  • two or more activated carbon adsorption units or units in the integrated tower are selected to treat the flue gas of the working condition; even if the flue gas of the working condition The amount is large, and the residence time of the activated carbon in the activated carbon adsorption unit or the unit group is increased to ensure the adsorption treatment effect.
  • the flue gas generated in this type of working condition is combined and sent to one or more activated carbon adsorption units or unit groups of the integrated tower.
  • n independent activated carbon adsorption units or groups of units are used to process the m-conditions to generate flue gas, and the number of conditions for generating flue gas may be the same as that of the activated carbon adsorption unit or the unit group, or may be less than that of the activated carbon adsorption.
  • the number of units or groups of cells may be more than the number of the activated carbon adsorption unit or the unit group, and the flue gas generated by the same working condition as the flue gas component is combined and then transported to the activated carbon.
  • the adsorption unit or unit group is processed.
  • the invention separately treats the flue gas generated by different working conditions, and collects the flue gas of different working conditions into one area, and inputs it into the independent end purification adsorption device, thereby avoiding mutual interference of the flow fields and retaining the unique emission of the main process.
  • the nature ensures the production stability of the main process and the stable operation and safety of the end purification unit.
  • the integrated tower includes a plurality of activated carbon adsorption units or unit groups, and is disposed in the vicinity of the analytical tower, and each activated carbon adsorption unit or unit group independently processes the flue gas generated in one working condition and independently purifies the treatment.
  • Each of the activated carbon adsorption units or unit groups is operated independently, and therefore, a plurality of activated carbon adsorption units or unit groups are arranged in parallel.
  • the content of the pollutants in the flue gas is generated according to different working conditions, the content of the pollutants in the exhaust gas at the exhaust port of the activated carbon adsorption unit or the unit group after being treated by the activated carbon adsorption unit or the unit group, and the adsorption of the plurality of activated carbons
  • the exhaust gas at the exhaust of the unit or unit group can be discharged independently or after being combined.
  • unified discharge means that all of the plurality of activated carbon adsorption units or the exhaust ducts connected to the outlet of the unit group are combined and connected to the chimney, and are discharged by one chimney.
  • the activated carbon adsorption unit that processes the flue gas at each working condition or the exhaust pipe connected to the outlet of the unit group is independently connected to a chimney, that is, one chimney corresponds to one working condition.
  • a plurality of activated carbon adsorption units or a part of the activated carbon adsorption unit in the unit group or the exhaust duct of the unit group are combined and discharged to the same chimney, and the exhaust of other remaining activated carbon adsorption units or unit groups
  • the pipes are combined after being discharged to another chimney, or the remaining exhaust pipes of the activated carbon adsorption unit or unit group are independently connected to a chimney for independent discharge.
  • the plurality of activated carbon adsorption units or units of the integrated tower independently process the flue gas generated by the respective working conditions, and the exhausted gas can be treated by each activated carbon adsorption unit or unit group according to the actual discharge condition.
  • a separate chimney discharge it is also possible to treat one or more activated carbon adsorption units or units of flue gas treated in each working condition by a chimney, or after all activated carbon adsorption units or unit groups are processed.
  • the smoke is discharged through a chimney.
  • the emission of flue gas after treatment by the activated carbon adsorption unit or the unit group is flexibly set according to actual conditions.
  • the activated carbon adsorption unit or unit group adopts a single-stage adsorption tower or a multi-stage adsorption tower, and sets the amount of pollutants in the flue gas according to specific working conditions, and the smoke emission standard of the working condition.
  • the structure of the single stage adsorption column and the multistage adsorption column is a conventional arrangement in the prior art.
  • each activated carbon adsorption unit or unit group is an independent adsorption treatment unit, and the technical solution of the present invention is used to detect the characteristics of the flue gas of a working condition according to each activated carbon adsorption unit or unit group.
  • the content of the pollutants in the flue gas generated by the working condition and the flow rate of the flue gas generated at the working condition can accurately calculate the flow rate of the pollutants in the flue gas generated by the working condition; and then, the pollutants in the flue gas are generated according to the working condition.
  • the flow rate determines the flow rate of activated carbon in the activated carbon adsorption unit or unit group that processes the flue gas.
  • Each activated carbon adsorption unit or unit group can set the flow rate of the specific activated carbon in each activated carbon adsorption unit or unit group according to the characteristics of the flue gas generated by the specific working condition and the emission standard of the flue gas in the working condition (or Called the cutting speed).
  • the design of the present invention is extremely adaptable and operability is also strong.
  • the flow rate of activated carbon in the analytical tower can be accurately calculated, thereby scientifically controlling the resolution speed of the activated carbon, so that the entire purification treatment system is fully coordinated, analyzed and
  • the adsorption synchronization process does not occur because the analytical column is too slow, and the activated carbon adsorption unit or unit group needs to wait for the analytical column to analyze the activated carbon; nor does it occur because the analytical column is analyzed too fast, and the analytical column needs to wait for the activated carbon adsorption unit or unit group.
  • the flow rate of the activated carbon adsorption unit or the unit group feeding device and the flow rate of the discharge device can be accurately calculated according to the flow rate of the activated carbon adsorption unit or the activated carbon in the unit group which generates the flue gas under a specific working condition.
  • the amount of activated carbon that needs to be replenished to the system can be obtained through experience or testing, that is, the flow rate of the additional activated carbon in the analytical tower can be obtained.
  • the additional activated carbon (commonly known as: new activated carbon) is added to the analytical tower from the feed port of the analytical tower according to experience or calculated flow of additional activated carbon in the analytical column.
  • K 1 and K 2 are constant, and are obtained from the treatment ability of the activated carbon adsorption treatment of sulfides and nitrogen oxides, and can also be empirically set.
  • j is the adjustment constant of the feeding device and the discharging device, which can be judged empirically.
  • the integrated tower includes a plurality of independent activated carbon adsorption units or unit groups, and the specifications and sizes of the activated carbon adsorption units or unit groups may be the same or different in a plurality of activated carbon adsorption units or unit groups;
  • the characteristics of the flue gas generated by the working condition are designed to specifically measure the specifications of the activated carbon adsorption unit or the unit group of the flue gas.
  • the number of layers of activated carbon in the activated carbon adsorption unit or unit group, the thickness of the activated carbon, the size of the intake port and the exhaust port, the position of the intake port and the exhaust port, etc. may all be Actually need to be set.
  • the first activated carbon conveying device and the second activated carbon conveying device may be respectively a unitary structure, or may be a conveying device composed of a plurality of sets of conveying devices, respectively. That is to say, the first activated carbon conveying device (or the second activated carbon conveying device) can be driven by one motor, and the entire conveying path is in a "Z" shape or an inverse "Z" shape structure; the first activated carbon conveying device (or the second activated carbon) The conveying device can also be driven by a plurality of motors, each of which drives a section of conveying device, each of which is in a straight or curved configuration. That is to say, the first activated carbon conveying device (or the second activated carbon conveying device) may adopt any structure in the prior art, and may be an integral structure or a assembling structure.
  • the activated carbon adsorption unit or unit group may employ a single-stage activated carbon adsorption unit or unit group, or a secondary or multi-stage activated carbon adsorption unit or unit group. It is also possible that one or more (or all) activated carbon adsorption units or units of the n activated carbon adsorption units or units are connected in series with the secondary adsorption tower, that is, the flue gas passes through the activated carbon adsorption unit or unit, respectively. After the treatment of the group, the gas discharged from one or more activated carbon adsorption units or unit group exhaust ports is then treated separately or after being passed through a secondary adsorption column (or a secondary activated carbon adsorption column).
  • the flue gas can be discharged through the chimney after being treated by the activated carbon adsorption unit or the unit group, and the activated carbon adsorption unit or unit group can be a single-stage activated carbon adsorption unit or a unit group, or can be used as a secondary unit. Or a multi-stage activated carbon adsorption unit or unit group.
  • the gas discharged from the n-shaped carbon adsorption unit or the unit group exhaust port is reprocessed through a secondary adsorption tower, respectively, or the n-shaped carbon adsorption unit or unit group
  • the gas discharged from one or more of the exhaust ports is reprocessed through the secondary adsorption tower.
  • the gas discharged from one or more exhaust ports in the n-characteric carbon adsorption unit or the unit group is reprocessed through the secondary adsorption tower, and the gases discharged from the exhaust ports of the remaining carbon adsorption units or unit groups are passed.
  • a separate secondary adsorption tower is reprocessed.
  • the activated carbon adsorption unit or unit group and the secondary adsorption tower are similar to the prior art activated carbon adsorption tower, and the internal structure is the same as that of the prior art activated carbon adsorption tower.
  • the height of the activated carbon adsorption unit or unit group is from 10 to 50 m, preferably from 15 to 40 m, more preferably from 18 to 30 m.
  • the cross-sectional area of the activated carbon adsorption unit or unit group is 2-20 m, preferably 5-18 m, more preferably 8-15 m; width 1-15 m, preferably 3-12 m, more preferably 5-10 m.
  • the diameter of the cross-sectional area of the activated carbon adsorption unit or unit group is from 1 to 10 m, preferably from 2 to 8 m, more preferably from 3 to 6 m.
  • the purification treatment system simultaneously processes the flue gas generated by the multiple working conditions.
  • the purification treatment system includes an integrated tower and an analytical tower.
  • the integrated tower includes a plurality of activated carbon adsorption units or unit groups, and the integrated tower analysis tower is disposed in the same area, and is integrated.
  • the transportation of activated carbon between the tower and the analytical tower can complete the transportation and transportation of the entire activated carbon through two activated carbon conveying equipment.
  • the design of the flue gas treatment in the technical scheme of the invention flexibly adapts to the problems of different pollutant content in the flue gas and different emission standards in each process.
  • the invention generates the characteristics of flue gas according to different working conditions, and adaptively uses different adsorption treatment schemes, which can efficiently process the flue gas generated by each process, so that the treated flue gas completely meets the prescribed discharge standard, and
  • the most economical technical solution can be used to realize flue gas treatment, which has high processing efficiency and cost saving.
  • FIG. 2 is a schematic structural view of a multi-condition flue gas centralized independent purification treatment system according to the present invention
  • Figure 3 is a schematic view showing the structure of each activated carbon adsorption unit or unit group in the integrated tower of the present invention (a cross-sectional view of the A-A position in Figure 1);
  • FIG. 4 is a schematic structural view showing uniform discharge of all activated carbon adsorption units or unit groups in the integrated tower of the present invention
  • Figure 5 is a schematic view showing the structure of an activated carbon adsorption unit or unit group, an activated carbon adsorption unit or a unit group in a working condition of the integrated tower of the present invention
  • FIG. 6 is a schematic structural view showing an independent adsorption of an activated carbon adsorption unit or a unit group using two activated carbon adsorption units or unit groups in an integrated tower in the present invention
  • FIG. 7 is a schematic structural view showing uniform discharge of two activated carbon adsorption units or unit groups, activated carbon adsorption units or unit groups in one working condition of the integrated tower of the present invention
  • FIG. 8 is a process flow diagram of independent emission of flue gas in a multi-condition flue gas centralized independent purification treatment system according to the present invention.
  • FIG. 9 is a flow chart of a process for uniformly discharging flue gas in a multi-condition flue gas centralized independent purification treatment system according to the present invention.
  • FIG. 10 is a flow chart of a process for independently discharging exhaust gas from two activated carbon adsorption units or units, activated carbon adsorption units or unit groups in a working condition of a multi-condition flue gas centralized independent purification treatment system according to the present invention
  • Figure 11 is a schematic diagram of an activated carbon adsorption unit or a unit group of flue gas discharged in a single working condition of a multi-condition flue gas centralized independent purification treatment system using two activated carbon adsorption units or unit groups for treating each working condition of flue gas.
  • FIG. 12 is a flow chart of a process for uniformly discharging two activated carbon adsorption units or units, all activated carbon adsorption units or unit groups in a working condition of a multi-condition flue gas concentration independent purification treatment system according to the present invention
  • FIG. 13 is a flow chart of calculating activated carbon in a multi-condition flue gas concentration independent purification treatment method according to the present invention.
  • FIG. 14 is a flow chart of controlling activated carbon in a multi-condition flue gas concentration independent purification treatment method according to the present invention.
  • a multi-condition flue gas concentration independent purification treatment system is provided.
  • the utility model relates to a multi-condition flue gas concentration independent purification treatment system, which comprises: an integrated tower 1, an analytical tower 2, a first activated carbon conveying device P1, a second activated carbon conveying device P2, and a flue gas conveying pipeline L.
  • the integrated tower 1 includes a plurality of independent activated carbon adsorption units or unit groups 101, and a plurality of independent activated carbon adsorption units or unit groups 101 are arranged in parallel.
  • Each of the independent activated carbon adsorption units or units 101 has a feed port 10101 at the top and a discharge port 10102 at the bottom.
  • All of the activated carbon adsorption unit or discharge port 10102 of the unit group 101 is connected to the feed port of the analytical column 2 through the first activated carbon conveying device P1.
  • the discharge port of the analytical column 2 is connected to the feed port 10101 of each activated carbon adsorption unit or unit group 101 through the second activated carbon conveying device P2.
  • the flue gases generated in each of the operating conditions of the multi-condition flue gas are independently connected to the one or more independent activated carbon adsorption units or the intake ports 10103 of the unit group 101 through the flue gas delivery conduit L.
  • the system further comprises an exhaust duct L row , a chimney 3.
  • Each of the activated carbon adsorption units or the gas outlets 10104 of the unit group 101 is connected to a row of exhaust pipes L.
  • the exhaust pipe L row is connected to the chimney 3.
  • the exhaust duct after the activated carbon adsorption of all elements or groups of outlet port 101 connected to L 10104 is connected to a combined exhaust chimney 3, uniform emission.
  • one or more independent activated carbon adsorption units or rows of exhaust ducts connected to the outlet of unit group 101 are independently connected to a chimney 3 for separate discharge.
  • n separate activated carbon adsorption units or rows of exhaust ducts 10104 connected to the outlet 10104 of the unit group 101 are connected to j chimneys 3; wherein: 1 ⁇ j ⁇ n.
  • the n independent activated carbon adsorption units or unit groups 101 are closely arranged, or the n independent activated carbon adsorption units or unit groups 101 are spaced apart from each other.
  • the gap between adjacent activated carbon adsorption units or unit groups 101 is from 10 to 5,000 cm, preferably from 20 to 3,000 cm, more preferably from 50 to 2,000 cm.
  • the integrated tower 1 of the system comprises three or four independent activated carbon adsorption units or unit groups 101.
  • the three operating conditions generate flue gas, which are A working condition, B working condition and C working condition, respectively.
  • the flue gas generated by the A condition is connected to the intake port 10103 of one independent activated carbon adsorption unit or unit group 101 through the first flue gas delivery pipe La.
  • the flue gas generated by the B operating condition is connected to the inlet port 10103 of one or two independent activated carbon adsorption units or unit groups 101 through the second flue gas delivery pipe Lb.
  • the flue gas generated by the C operating condition is connected to the intake port 10103 of one independent activated carbon adsorption unit or unit group 101 through the third flue gas delivery pipe Lc.
  • a process exhaust gas duct of the flue gas conditions produced a carbon adsorption unit or units of L row group 101 is connected to a chimney connection 3.
  • Processing conditions B produced a flue gas exhaust duct 2, or activated carbon adsorption unit or a unit group 101 is connected to the discharge connection of L 1 stack 3.
  • C exhaust duct processing conditions to produce a flue gas or the activated carbon adsorption unit cell group 101 is connected to the discharge connection of L 1 stack 3.
  • the first activated carbon conveying device P1 and the second activated carbon conveying device P2 are belt conveyors.
  • the first activated carbon conveying device P1 and the second activated carbon conveying device P2 are “Z” shaped or inverted “Z” shaped integral conveyors, or the first activated carbon conveying device P1 and the second activated carbon conveying device (P2) respectively There are several conveying devices.
  • the discharge outlet exhaust duct L 10104 n th cell group or the activated carbon adsorption units 101 1-n th cell group or the activated carbon adsorption unit 101 is connected to the two adsorption towers connected, then two of the adsorption tower The port is then connected to the chimney 3.
  • the system further comprises a feeding device 4 and a discharge device 5.
  • a feeding device 4 is provided at the top of each activated carbon adsorption unit or unit 101.
  • the second activated carbon conveying apparatus P2 is connected to each of the activated carbon adsorption units or the feed port 10101 of the unit group 101 through a separate feeding device 4.
  • Each of the activated carbon adsorption units or the discharge port 10102 of the unit group 101 is provided with a discharge device 5.
  • the discharge port of the activated carbon adsorption unit or unit group 101 is connected to the first activated carbon conveying device P1 through the discharge device 5.
  • the height of the activated carbon adsorption unit or unit group is from 10 to 50 m, preferably from 15 to 40 m, more preferably from 18 to 30 m.
  • the cross-sectional area of the activated carbon adsorption unit or unit group is 2-20 m, preferably 5-18 m, more preferably 8-15 m; width 1-15 m, preferably 3-12 m, more preferably 5-10 m.
  • the diameter of the cross-sectional area of the activated carbon adsorption unit or unit group is from 1 to 10 m, preferably from 2 to 8 m, more preferably from 3 to 6 m.
  • the discharge port of the analytical column 2 is connected to the feed port 10101 of each activated carbon adsorption unit or unit group 101 through the second activated carbon conveying device P2.
  • the system also includes a feed device 4 and a discharge device 5.
  • Each of the activated carbon adsorption units or unit groups 101 is provided with a feeding device 4 at the top, and the second activated carbon conveying device P2 is connected to the inlet of each activated carbon adsorption unit or unit group 101 through a separate feeding device 4.
  • Each of the activated carbon adsorption units or the discharge port of the unit group 101 is provided with a discharge device 5, and the discharge port of the activated carbon adsorption unit or unit group 101 is connected to the first activated carbon conveying device P1 through the discharge device 5.
  • the flue gases generated in each of the operating conditions of the multi-condition flue gas are independently connected to the one or more independent activated carbon adsorption units or the intake ports 10103 of the unit group 101 through the flue gas delivery conduit L.
  • the system also includes an exhaust duct L row , a chimney 3.
  • Each of the activated carbon adsorption units or the gas outlets 10104 of the unit group 101 is connected to a row of exhaust pipes L.
  • the exhaust pipe L row is connected to the chimney 3.
  • the discharge port of the analytical column 2 is connected to the feed port 10101 of each activated carbon adsorption unit or unit group 101 through the second activated carbon conveying device P2.
  • the system also includes a feed device 4 and a discharge device 5.
  • Each of the activated carbon adsorption units or unit groups 101 is provided with a feeding device 4 at the top, and the second activated carbon conveying device P2 is connected to the inlet of each activated carbon adsorption unit or unit group 101 through a separate feeding device 4.
  • Each of the activated carbon adsorption unit or the discharge port of the unit group 101 is provided with a discharge device 5, and the discharge port of the activated carbon adsorption unit or the unit group 101 is connected to the first activated carbon conveying device P1 through the discharge device 5.
  • the flue gas generated in each working condition of the flue gas is independently connected to the inlet 1010 of the independent activated carbon adsorption unit or unit group 101 through the flue gas conveying pipe L.
  • the system also includes an exhaust duct L row , a chimney 3.
  • Each of the activated carbon adsorption units or the gas outlets 10104 of the unit group 101 is connected to a row of exhaust pipes L.
  • Each exhaust line L is individually connected to a separate chimney 3 for independent discharge.
  • the discharge port of the analytical column 2 is connected to the feed port 10101 of each activated carbon adsorption unit or unit group 101 through the second activated carbon conveying device P2.
  • the system also includes a feed device 4 and a discharge device 5.
  • Each of the activated carbon adsorption units or unit groups 101 is provided with a feeding device 4 at the top, and the second activated carbon conveying device P2 is connected to the inlet of each activated carbon adsorption unit or unit group 101 through a separate feeding device 4.
  • Each of the activated carbon adsorption unit or the discharge port of the unit group 101 is provided with a discharge device 5, and the discharge port of the activated carbon adsorption unit or the unit group 101 is connected to the first activated carbon conveying device P1 through the discharge device 5.
  • Example 4 was repeated, except the processing conditions of the first condition generates a flue gas exhaust duct activated carbon adsorption unit or a unit group 101 connected to the discharge connection L 3 a chimney. Connected to a chimney exhaust duct 3 after the second treatment condition flue gas produced two activated carbon adsorption unit or a unit group 101 connected to the exhaust merging L. A third exhaust duct processing conditions to produce a flue gas or the activated carbon adsorption unit cell group 101 is connected to the discharge connection of L 1 stack 3.
  • Example 4 was repeated, except the processing conditions of the first condition generates an exhaust duct L row or group of activated carbon adsorption unit 101 is connected to the flue gas, the process conditions to produce a second flue gas 2 exhaust duct L th row or group of activated carbon adsorption unit 101 is connected to the exhaust duct 3 L of the discharge process conditions to produce a flue gas activated carbon adsorption unit or units connected to the group 101, four rows exhaust duct L After the merger, it is connected to a chimney 3 and discharged uniformly.
  • Example 4 was repeated except that four separate activated carbon adsorption unit or a unit group 101 wherein the exhaust duct 2, or activated carbon adsorption unit cell group 101 is connected to a line connector L of two adsorption tower, the remaining 2 2 activated carbon adsorption unit or a unit group 101 connected to the exhaust duct connected to the exhaust chimney L 3.
  • Example 4 was repeated except that the exhaust duct 4 separate activated carbon adsorption unit or a unit group connected to L 101 are connected to a separate row of secondary adsorption column, an exhaust port connected to the two adsorption towers 3 chimney.
  • Example 4 was repeated except that a two adsorption column is connected to the exhaust port is connected to the two adsorption tower 3 after the exhaust chimney duct 4 separate activated carbon adsorption unit or a unit group 101 connected to the exhaust merging L.
  • the method of Embodiment 2 is used, and the method includes the following steps:
  • the integrated tower 1 in the flue gas treatment system is provided with three activated carbon adsorption units or unit groups 101 and one analytical tower 2, and three activated carbon adsorption units or unit groups 101 are independent of each other and arranged in parallel;
  • the treated flue gas discharged from the outlets of the three activated carbon adsorption units or unit groups 101 is discharged through three separate chimneys.
  • Example 7 was repeated using the method of Example 3 except that the treated flue gas discharged from the outlets of the three activated carbon adsorption units or unit groups 101 was combined and discharged through one chimney.
  • the method includes the following steps:
  • the integrated tower 1 in the flue gas treatment system is provided with four activated carbon adsorption units or unit groups 101 and one analytical tower 2, and four activated carbon adsorption units or unit groups 101 are independent of each other and arranged in parallel;
  • the flue gas generated in the three working conditions is generated, and the flue gas generated in the first working condition (A working condition) is connected to the air inlet 10103 of one independent activated carbon adsorption unit or unit group 101 through the first flue gas conveying pipe La.
  • the flue gas generated in the second operating condition (B operating condition) is connected to the two independent activated carbon adsorption units or the intake port 10103 of the unit group 101 through the second flue gas delivery pipe Lb.
  • the flue gas generated in the third working condition is connected to the air inlet 10103 of one independent activated carbon adsorption unit or unit group 101 through the third flue gas conveying pipe Lc; the activated carbon adsorption unit or the unit group 101 is connected to each other
  • the flue gas conveyed by the flue gas conveying pipe L is subjected to adsorption treatment, and the flue gas treated by the activated carbon adsorption unit or the unit group 101 is discharged from the activated carbon adsorption unit or the gas outlet 10104 of the unit group 101;
  • the flue gas generated in the first working condition is discharged through one chimney 3 after being treated by one activated carbon adsorption unit or unit group 101, and the flue gas generated in the second working condition is processed by two activated carbon adsorption units or unit groups 101 and passed through two The independent chimney 3 discharges, and the third working condition generates flue gas which is discharged through one chimney 3 after being treated by one activated carbon adsorption unit or unit group 101.
  • Example 11 is repeated using the method of Embodiment 5, except that the flue gas generated in the first working condition is discharged through one chimney 3 after being treated by one activated carbon adsorption unit or unit group 101, and the second work is performed.
  • the flue gas is treated by two activated carbon adsorption units or unit groups 101 and combined and discharged through one independent chimney 3, and the third condition generates flue gas through one activated carbon adsorption unit or unit group 101 and passes through a chimney 3 emission.
  • Example 11 was repeated using the method of Example 6, except that the flue gas generated in the first working condition was treated by one activated carbon adsorption unit or unit group 101, and the second working condition produced flue gas passing through 2 After the activated carbon adsorption unit or unit group 101 is treated, and the third working condition generates flue gas, after being treated by one activated carbon adsorption unit or unit group 101, the gas discharged from the activated carbon adsorption unit or the exhaust port of the unit group 101 is combined and then connected to 1 A chimney 3, unified discharge.
  • Example 7 is repeated, except that step 3) specifically: each activated carbon adsorption unit or unit group 101 processes the flue gas of a working condition, and detects the content of the pollutant in the flue gas generated by the working condition, and generates smoke at the working condition.
  • the flow rate of the gas is obtained, and the flow rate of the pollutants in the flue gas is obtained according to the working condition; the flow rate of the pollutants in the flue gas is generated according to the working condition, and the flow rate of the activated carbon in the activated carbon adsorption unit or the unit group 101 for generating the flue gas in the working condition is determined. .
  • the flow rate of pollutants in the flue gas is calculated:
  • Q si is the flow rate of pollutant SO 2 in the flue gas generated at the i working condition, kg/h;
  • C si is the content of pollutant SO 2 in the flue gas generated at i working condition, mg/Nm 3 ;
  • V i is the flow of flue gas generated at the i condition, Nm 3 /h;
  • the flow rate of activated carbon in each activated carbon adsorption unit or unit group 101 for generating flue gas under the working condition is determined:
  • Q xi is the flow rate of activated carbon in each activated carbon adsorption unit or unit group 101 for generating flue gas in i working condition, kg/h;
  • h i is the number of activated carbon adsorption units or unit groups 101 that generate flue gas for processing i conditions, is 1;
  • Q x is the flow rate of activated carbon in the analytical column 2, kg / h;
  • Q xi is the flow rate of activated carbon in each activated carbon adsorption unit or unit group 101 for generating flue gas in i working condition, kg/h;
  • h i is the number of activated carbon adsorption units or unit groups 101 that generate flue gas for processing i conditions, is 1;
  • the flow rate of the activated carbon adsorption unit or the activated carbon in the unit group which generates the flue gas is controlled to be Q xi .
  • the embodiment 11 is repeated, except that the step 3) is specifically: detecting the content of the pollutant in the flue gas generated by the working condition, and the flow rate of the flue gas generated in the working condition, and obtaining the flow rate of the pollutant in the flue gas generated by the working condition;
  • the working condition generates a flow rate of the pollutants in the flue gas, and determines the flow rate of the activated carbon adsorption unit or the activated carbon in the unit group 101 that processes the flue gas generated by the working condition.
  • the flow rate of pollutants in the flue gas is calculated:
  • Q si is the flow rate of pollutant SO 2 in the flue gas generated at the i working condition, kg/h;
  • C si is the content of pollutant SO 2 in the flue gas generated at i working condition, mg/Nm 3 ;
  • V i is the flow of flue gas generated at the i condition, Nm 3 /h;
  • the flow rate of the activated carbon in each of the activated carbon adsorption units or unit groups 101 which generate the flue gas is determined according to the following formula:
  • Q xi is the flow rate of activated carbon in each activated carbon adsorption unit or unit group 101 for generating flue gas in i working condition, kg/h;
  • h i is the number of activated carbon adsorption units or unit groups 101 that generate flue gas when processing i conditions; wherein: when processing the first working condition (A working condition), h is 1; processing the second working condition (B working condition) h is 2; when the third condition (C condition) is processed, h is 1;
  • Q x is the flow rate of activated carbon in the analytical column 2, kg / h;
  • Q xi is the flow rate of activated carbon in each activated carbon adsorption unit or unit group 101 for generating flue gas in i working condition, kg/h;
  • h i is the number of activated carbon adsorption units or unit groups 101 that generate flue gas when processing i conditions; wherein: when processing the first working condition (A working condition), h is 1; processing the second working condition (B working condition) h is 2; when the third condition (C condition) is processed, h is 1;
  • the flow rate of the activated carbon in the activated carbon adsorption unit or the unit group generated by the second activated carbon conveying device P2 is controlled to be Q xi according to the flow rate of the activated carbon in the activated carbon adsorption unit or the unit group.
  • Example 14 is repeated except that the flow rate of the activated carbon adsorption unit or the activated carbon in the unit group which generates the flue gas according to the treatment i condition is determined, and the flow rate of the feeding device and the discharge device of the flue gas activated carbon adsorption unit or unit group 101 for treating the working condition is determined. .
  • the flow rate of the feeding device and the discharging device of the activated carbon adsorption unit or the unit group 101 for generating the flue gas in the i working condition is determined:
  • Q i is the flow rate of the feeding device of each activated carbon adsorption unit or unit group 101 for generating flue gas in the i working condition, kg/h;
  • the Q i row is the flow rate of each of the activated carbon adsorption units or the discharge device of the unit group 101 for generating the flue gas in the i working condition, kg / h;
  • Q xi is the flow rate of activated carbon in each activated carbon adsorption unit or unit group 101 for generating flue gas in i working condition, kg/h;
  • j is the adjustment constant, j is taken as 1.
  • Example 16 was repeated, using the system of Example 5 except that the system processed the flue gas generated in four operating conditions, K1 was taken as 16, K2 was taken as 4, and j was taken as 0.9.
  • Adopting the existing working conditions of a steel plant including coking process, sintering process, iron making process; setting three activated carbon adsorption units or unit groups and one analytical tower, and three activated carbon adsorption units or unit groups are arranged in parallel;
  • the flue gas generated by the coking process, the sintering process and the iron making process are separately transported to an activated carbon adsorption unit or unit group for flue gas evolution treatment, and the analytical tower analyzes the activated carbon adsorbed by the activated carbon adsorption unit or the unit group. And activated, and then recycled to the activated carbon adsorption unit or unit group;
  • the content of sulfur dioxide in the flue gas generated by the coking process is 96mg/Nm 3
  • the content of nitrogen oxide is 830mg/Nm 3
  • the flow rate of flue gas generated by the coking process is 2 ⁇ 10 6 Nm 3 /h
  • flue Gas flow rate Q s of the coking process is 192kg / h
  • the flow rate Q N coking nitrogen oxides is 1660kg / h
  • the flow rate Q x is coked to 8436 kg/h.
  • the content of sulfur dioxide in the flue gas generated by the sintering process was detected to be 1560 mg/Nm 3 , the content of nitrogen oxides was 360 mg/Nm 3 , and the flow rate of the flue gas generated by the sintering process was 1.3 ⁇ 10 7 Nm 3 /h;
  • the flow rate of sulfur dioxide in the flue gas of the process is sintered at 20280 kg/h, and the flow rate of nitrogen oxides is sintered at 4680 kg/h.
  • the flow rate of activated carbon in the activated carbon adsorption unit or unit group that produces the flue gas is calculated by calculation.
  • the Q x sintering was 3.8 ⁇ 10 5 kg / h.
  • the content of sulfur dioxide in the flue gas generated by the iron making process was 112 mg/Nm 3 , the content of nitrogen oxides was 78 mg/Nm 3 , and the flow rate of flue gas generated by the iron making process (blast furnace) was 2 ⁇ 10 6 Nm 3 . /h;
  • the flow rate of sulfur dioxide in the flue gas of the process Q s ironmaking is 224kg / h, the flow rate of nitrogen oxides Q N ironmaking is 156kg / h; by calculation, the ironmaking process is processed to produce flue gas
  • the flow rate of activated carbon in the activated carbon adsorption unit or unit group Q x ironmaking is 4500 kg/h.
  • the gas discharged from the exhaust ports of the three activated carbon adsorption units or unit groups is detected;
  • the gas discharged from the activated carbon adsorption unit or the unit exhaust port of the coking process to generate flue gas has a sulfur dioxide content of 26 mg/Nm 3 and a nitrogen oxide content of 124 mg/Nm 3 ;

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

La présente invention concerne un système de purification de gaz de combustion capable de traiter efficacement des gaz de combustion produits dans de multiples conditions de travail. Les gaz de combustion produits dans de multiples conditions de travail sont transportés dans un système de traitement de purification comprenant une tour intégrée constituée d'une pluralité d'unités d'adsorption de charbon actif indépendantes ou de groupes d'unités, et une tour de désorption à travers des tuyaux de transport de gaz de combustion, le gaz de combustion produit dans chaque condition de travail est traité par l'unité d'adsorption de charbon actif indépendante ou le groupe d'unités, et le charbon actif adsorbé par des polluants dans les unités d'adsorption de charbon actif ou les groupes d'unités est désorbé et activé par la tour de désorption et est ensuite transporté dans chaque unité d'adsorption de charbon actif ou groupe d'unités pour une réutilisation. Le présent système de traitement de purification peut traiter indépendamment les gaz de combustion produits dans chaque condition de travail, le champ d'écoulement du gaz de combustion produit dans chaque condition de travail n'est pas affecté, les normes d'émission sont différentes, des paramètres de fonctionnement pendant le traitement des gaz de combustion produits dans les conditions de travail sont différents, puis le charbon actif est désorbé de manière uniforme, ce qui réduit considérablement l'utilisation de la tour de désorption, économise l'investissement de l'équipement, et améliore le taux d'utilisation et l'efficacité de travail de la tour de désorption.
PCT/CN2019/070503 2018-05-10 2019-01-04 Système de traitement de purification de gaz de combustion à conditions multiples de travail centralisés et indépendants et son procédé de commande WO2019214272A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR112020011439-1A BR112020011439A2 (pt) 2018-05-10 2019-01-04 sistema de purificação de gás de combustão em condição de multitrabalhos independente e centralizado e um método de controle do mesmo
RU2020119849A RU2753521C1 (ru) 2018-05-10 2019-01-04 Централизованная и автономная система очистки отходящих газов множества рабочих процессов и способ ее управления
KR1020207013428A KR102318354B1 (ko) 2018-05-10 2019-01-04 다중 작업 조건의 플루가스 집중 독립 정화 처리 시스템 및 이의 제어방법
MYPI2020002560A MY194554A (en) 2018-05-10 2019-01-04 A centralized and independent multi-working condition flue gas purification system, and a control method thereof
PH12020550672A PH12020550672A1 (en) 2018-05-10 2020-05-21 A centralized and independent multi-working condition flue gas purification system, and a control method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810443132.XA CN108607322B (zh) 2018-05-10 2018-05-10 一种多工况烟气集中独立净化处理系统及其控制方法
CN201810443132.X 2018-05-10

Publications (1)

Publication Number Publication Date
WO2019214272A1 true WO2019214272A1 (fr) 2019-11-14

Family

ID=63662763

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/070503 WO2019214272A1 (fr) 2018-05-10 2019-01-04 Système de traitement de purification de gaz de combustion à conditions multiples de travail centralisés et indépendants et son procédé de commande

Country Status (7)

Country Link
KR (1) KR102318354B1 (fr)
CN (1) CN108607322B (fr)
BR (1) BR112020011439A2 (fr)
MY (1) MY194554A (fr)
PH (1) PH12020550672A1 (fr)
RU (1) RU2753521C1 (fr)
WO (1) WO2019214272A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115532000A (zh) * 2022-11-23 2022-12-30 承德石油高等专科学校 一种化工产品中间罐用油气回收装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108607322B (zh) * 2018-05-10 2020-12-04 中冶长天国际工程有限责任公司 一种多工况烟气集中独立净化处理系统及其控制方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005095858A (ja) * 2003-08-25 2005-04-14 Syst Enji Service Kk 揮発性炭化水素を含む排ガスの浄化方法
CN202315658U (zh) * 2011-11-08 2012-07-11 住友重机械工业株式会社 废气处理装置
CN103191621A (zh) * 2013-04-18 2013-07-10 扬州松泉环保科技有限公司 一种吸附催化一体式废气净化装置
CN103405991A (zh) * 2013-08-22 2013-11-27 上海克硫环保科技股份有限公司 用于不同烟气的活性焦高效节能综合脱硫净化系统及方法
CN204038373U (zh) * 2014-08-08 2014-12-24 中冶长天国际工程有限责任公司 用于烟气脱硫系统的输送装置
CN107694300A (zh) * 2016-08-08 2018-02-16 中冶长天国际工程有限责任公司 活性炭脱硫脱硝系统的喷氨量控制方法和装置
CN108607325A (zh) * 2018-05-10 2018-10-02 中冶长天国际工程有限责任公司 一种多吸附塔并联烟气净化处理系统及其控制方法
CN108607322A (zh) * 2018-05-10 2018-10-02 中冶长天国际工程有限责任公司 一种多工况烟气集中独立净化处理系统及其控制方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940052B2 (ja) * 1980-06-16 1984-09-27 株式会社荏原製作所 電子ビ−ム多段照射式排ガス脱硫脱硝法および装置
DE3447674A1 (de) * 1983-12-30 1985-07-11 Uop Inc., Des Plaines, Ill. Verfahren zur entfernung von schwefeloxiden aus einem gasstrom
SU1353477A1 (ru) * 1984-12-19 1987-11-23 Московский Институт Химического Машиностроения Способ десорбции растворителей из активированного угл
JP5319934B2 (ja) * 2008-02-28 2013-10-16 三菱重工業株式会社 排ガス処理方法及び装置
CN102580455A (zh) * 2011-12-29 2012-07-18 山西太钢不锈钢股份有限公司 烧结烟气处理系统和方法
CN102728217B (zh) * 2012-07-10 2014-04-23 中国华电工程(集团)有限公司 移动床活性焦联合脱硫脱硝脱汞的方法及系统
CN106693603B (zh) * 2015-11-13 2023-05-09 中冶长天国际工程有限责任公司 活性炭法烟气净化装置及烟气净化方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005095858A (ja) * 2003-08-25 2005-04-14 Syst Enji Service Kk 揮発性炭化水素を含む排ガスの浄化方法
CN202315658U (zh) * 2011-11-08 2012-07-11 住友重机械工业株式会社 废气处理装置
CN103191621A (zh) * 2013-04-18 2013-07-10 扬州松泉环保科技有限公司 一种吸附催化一体式废气净化装置
CN103405991A (zh) * 2013-08-22 2013-11-27 上海克硫环保科技股份有限公司 用于不同烟气的活性焦高效节能综合脱硫净化系统及方法
CN204038373U (zh) * 2014-08-08 2014-12-24 中冶长天国际工程有限责任公司 用于烟气脱硫系统的输送装置
CN107694300A (zh) * 2016-08-08 2018-02-16 中冶长天国际工程有限责任公司 活性炭脱硫脱硝系统的喷氨量控制方法和装置
CN108607325A (zh) * 2018-05-10 2018-10-02 中冶长天国际工程有限责任公司 一种多吸附塔并联烟气净化处理系统及其控制方法
CN108607322A (zh) * 2018-05-10 2018-10-02 中冶长天国际工程有限责任公司 一种多工况烟气集中独立净化处理系统及其控制方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115532000A (zh) * 2022-11-23 2022-12-30 承德石油高等专科学校 一种化工产品中间罐用油气回收装置
CN115532000B (zh) * 2022-11-23 2023-03-03 承德石油高等专科学校 一种化工产品中间罐用油气回收装置

Also Published As

Publication number Publication date
RU2753521C1 (ru) 2021-08-17
MY194554A (en) 2022-12-01
CN108607322A (zh) 2018-10-02
KR102318354B1 (ko) 2021-10-27
PH12020550672A1 (en) 2021-04-26
BR112020011439A2 (pt) 2020-11-24
CN108607322B (zh) 2020-12-04
KR20200066693A (ko) 2020-06-10

Similar Documents

Publication Publication Date Title
CN108939808B (zh) 一种提高余热利用率和脱硝率的活性炭处理系统及其使用方法
CN107551757A (zh) 一种烟气脱硫脱硝方法和装置
CN108745331B (zh) 一种新型活性炭解析塔以及活性炭解析工艺
WO2018000888A1 (fr) Procédé et dispositif de désulfuration et de dénitrification de gaz de combustion capable d'inhiber la corrosion
CN108380041A (zh) 一种基于活性炭/焦的焦炉烟气脱硫脱硝系统和方法
CN108939807B (zh) 一种提高余热利用率及脱硝率的烟气净化装置及其使用方法
WO2019214272A1 (fr) Système de traitement de purification de gaz de combustion à conditions multiples de travail centralisés et indépendants et son procédé de commande
CN205145970U (zh) 一种炭基催化剂脱硫脱硝系统
CN112191083A (zh) 烧结烟气活性焦脱硫脱硝超低排放处理系统及其方法
CN103405991B (zh) 用于不同烟气的活性焦高效节能综合脱硫净化系统及方法
CN1748836A (zh) 有机废气净化处理装置
CN109499556B (zh) 一种防结垢活性炭解析塔及其解析方法
KR102318293B1 (ko) 다공정 연도가스 정화 시스템 및 그 제어방법
CN104707470B (zh) 活性焦/炭烟气脱硫及解吸集成系统
CN108607325B (zh) 一种多吸附塔并联烟气净化处理系统及其控制方法
CN216171166U (zh) 用于钢厂烧结机烟气的低温脱硫脱硝系统
CN212651583U (zh) 一种双循环式活性炭分离解析的垃圾焚烧烟气处理系统
CN113731101B (zh) 一种基于活性炭分离解析的垃圾焚烧烟气处理系统及烟气处理方法
CN107433106A (zh) 一种烟气净化吸收塔及其处理方法
CN212440685U (zh) 水泥窑尾烟气的净化系统
CN203425681U (zh) 用于不同烟气的活性焦高效节能综合脱硫净化系统
CN112403190A (zh) 一种烟气脱硫脱硝活性炭布料系统及布料方法
CN207745673U (zh) 一种使用散装吸收和/或吸附剂的烟气净化装置
CN215843014U (zh) 一种活性炭脱附再生系统和装置
CN212651581U (zh) 一种串联式活性炭分离解析的垃圾焚烧烟气处理系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19800464

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20207013428

Country of ref document: KR

Kind code of ref document: A

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112020011439

Country of ref document: BR

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 112020011439

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20200608

122 Ep: pct application non-entry in european phase

Ref document number: 19800464

Country of ref document: EP

Kind code of ref document: A1