CN103130222A - Method for preparing activated carbon from semi-coke and device used in same - Google Patents
Method for preparing activated carbon from semi-coke and device used in same Download PDFInfo
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- CN103130222A CN103130222A CN2013100949303A CN201310094930A CN103130222A CN 103130222 A CN103130222 A CN 103130222A CN 2013100949303 A CN2013100949303 A CN 2013100949303A CN 201310094930 A CN201310094930 A CN 201310094930A CN 103130222 A CN103130222 A CN 103130222A
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- 230000008569 process Effects 0.000 claims description 59
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- 230000007420 reactivation Effects 0.000 claims description 36
- 239000001301 oxygen Substances 0.000 claims description 33
- 229910052760 oxygen Inorganic materials 0.000 claims description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 32
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Abstract
The invention discloses a method for preparing activated carbon from semi-coke and a device used in the method. The method comprises the following steps of: taking semi-coke of which the volatile matter is greater than 5% and the thermal stability is greater than 70%, screening and feeding the semi-coke of which the granularity is 5-20mm into a rake-type activating furnace (8) to be subjected to activation treatment to generate the activated carbon; discharging the activated carbon from the rake-type activating furnace (8), cooling at a helix cooling machine (6) and conveying through a belt conveyer (7); and finally entering an activated carbon packaging period to be selected and packaged. According to the method, the structural characteristics of organic matter components and micro-pores of a semi-coke product are sufficiently utilized, and with the combination of the operation control principle of the domestic activation furnace, a novel process control method is innovated, and the activation process of the rake-type furnace is applied to the production process of the semi-coke-made activated carbon, so that the activation process control precision of a product is greatly improved, activated carbon products of higher quality are produced, the additional value of a semi-coke product is greatly increased, the application space of the semi-coke is widened, and the market requirements of the activated carbon are met.
Description
Technical field
The present invention relates to preparation method and institute's using appts, particularly a kind of method of blue charcoal preparing active carbon and institute's using appts of gac.
Background technology
Gac is widely used in deep purifying and the Gas Phase Adsorption of domestic water, process water and waste water, process as petrochemical complex, power plant, food-drink, sugaring alcoholic, medicine, the industry purification of water quality such as breed fish, free chlorine, phenol, sulphur and other organic pollutant in energy active adsorption water, particularly the precursor of mutagen (THM), reach filtering and impurity removing and remove peculiar smell.Also can be used for workshop tail gas purification, solvent filter, decolouring, purification etc., gas sweetening, oil catalytic reforming, gas delivery, pressure-variable adsorption, dry air, food fresh keeping, smoke mask, solution matchmaker's carrier, the functions such as the catalyzer in organic solvent recovery, noble metal refinement, chemical industry and support of the catalyst.
The main raw material of gac can be almost all organic materialss that are rich in carbon, as coal, timber, shell, coconut husk, nut-shell etc.These carbonaceous materials are converted into gac by pyrolysis under high temperature and certain pressure in activation furnace.In this reactivation process, huge surface-area and complicated pore texture form gradually, and so-called adsorption process is carried out in these holes and on the surface just, the size of gac mesoporosity has the effect of the absorption selected to adsorbate, this is because macromole can not enter than the cause in its hole little gac aperture.
Because active carbon from coal belongs to resource cost type, labor-intensive industrial product, production process is complicated, and production cost is higher, and price is higher in the international market.External activated carbon product purposes is wide, and related products is wide in variety, receives with the gac demand with gac and solvent with gac, purification of waste water with gac, automobile in industrially developed country's water treatments such as the U.S. and promotes comparatively fast.Domestic, along with the expansion of city size, the water treatment plant is constantly by granted construction, and this is wherein more is the water treatment plant, like this, has directly increased the application demand of gac.In recent years, along with the fast development of Domestic Automotive Industry, the demand of gac also increased accordingly rapidly.Because China's Activated Carbon Production scope of the enterprise is little, production unit neither advanced person is difficult to again upgrade, and causes thus active carbon from coal new product development difficulty, and range of product is few, and many high-qualitys, tailored version and the higher gac of technology content still need import.So expansion scale, exploitation medium and high-grade products will be the developing direction of China gac enterprise.
The ground rich coal resources such as Shenmu County, China northern Shensi, Datong, Ningxia, Changji, and be superior in quality long-flame coal coal, be the high quality raw material of producing blue charcoal.Before several years, along with maintaining sustained and rapid growth of China's calcium carbide capacity and output, newly-built a collection of large-scale blue charcoal device more than 600,000 ton/years.But in recent years along with the enforcement of industry restructuring and target for energy-saving and emission-reduction, the calcium carbide manufacturing enterprise of a large amount of highly energy-consumings, high pollution is closed down.The phenomenon that blue charcoal products production surplus so just occurred.On the other hand, a collection of coal deep processing device is built to operation, the blue charcoal of byproduct wherein, and added value is lower, and application approach is less, sales difficulty.Therefore, present blue charcoal market production capacity surplus, application approach is less, and the phenomenon that added value of product is low is very outstanding.The long-flame coal coal, ature of coal component wherein more easily forms large central hole structure in reactivation process; Its ash content more easily forms the high activated carbon product of thermostability after activation.
Blue charcoal is the major product of coal destructive distillation device, and very fast because of (300 ℃～700 ℃) intensification in retort process, blue charcoal pore structure forms relatively poor, and micropore is less.If blue charcoal is processed through traditional activating process, reactivation process is controlled not accurate, and the holes of products structure of producing is inhomogeneous, and adsorptivity is relatively poor, and physical strength is less.At present, blue charcoal is made the field at gac, there is no than successful Application.
Summary of the invention
The object of the invention is to, a kind of method and institute's using appts of blue charcoal preparing active carbon is provided, take full advantage of the constructional feature of blue charcoal product organic matter fraction and micropore, in conjunction with the operation control principle of domestic activation furnace, explore the process control method that makes new advances.This patent is simple with its technique, automatic controlling level is high, the quantity-produced advantage, the reactivation process of rake stove is applied in the explained hereafter of blue charcoal preparing active carbon, greatly improved the reactivation process control accuracy of product, produce the activated carbon product of higher quality, significantly improved the added value of product of blue charcoal product.This patent had both increased the industrial application approach of blue charcoal, had expanded the application space of blue charcoal, had realized again the ton large-scale production of active carbon from coal, had satisfied the market requirement of gac.
Technical scheme of the present invention: a kind of method of blue charcoal preparing active carbon, get fugitive constituent greater than 5%, thermostability is greater than 70% blue charcoal, be that the blue charcoal of 5mm～20mm is sent into the rake activation furnace and carried out activation treatment with granularity after screening, generate gac, gac is from the conveying of rake activation furnace discharge by cooling screw cooling process and rotary conveyor, enter at last the gac packing department, screen packing.Utilize the constructional feature of blue charcoal product organic matter fraction and micropore, the reactivation process of rake stove is applied in the explained hereafter of blue charcoal preparing active carbon, greatly improved the reactivation process control accuracy of product, produce the activated carbon product of higher quality, significantly improved the added value of product of blue charcoal product.This patent had both increased the industrial application approach of blue charcoal, had expanded the application space of blue charcoal, had also realized the ton large-scale production of active carbon from coal, had satisfied the market requirement of gac.
In the method for aforesaid this blue charcoal preparing active carbon, blue charcoal is from the throat-fed of the close activation furnace axis in rake activation furnace top, fall into the first layer siege, blue charcoal material on the first layer siege stirs under the stirring of rake teeth from inside to outside, rake namely, then fall into second layer siege by the material falling hole outside siege, blue charcoal material ecto-entad under the stirring of rake teeth on second layer siege stirs, rake namely, then the material falling hole by siege central authorities falls into lower one deck siege, outer rake, then fall into lower one deck siege, interior rake by the material falling hole outside siege; The like, until fall into the bottom siege, draw off finally by the discharge port bottom the rake activation furnace.
In the method for aforesaid this blue charcoal preparing active carbon, totally 15～20 layers of rake activation furnaces, first to two layer is the pre-activated hot arc from top to bottom, and the 3rd to four layer is the primary activation section, and last is to activate cooling section to two layers, and all the other are the deep activation section.
In the method for aforesaid this blue charcoal preparing active carbon, burner blower blasts air the burner of surrounding in the rake activation furnace, natural gas via pipeline in gas distributing system flows to burner, the mixed firing in burner of Sweet natural gas and air produces high-temperature flue gas, for the reactivation process of blue charcoal provides heat.
In the method for aforesaid this blue charcoal preparing active carbon, the high-temperature flue gas that produces by the control combustion device is to control oxygen enrichment coefficient and each layer temperature in the rake activation furnace, making pre-activated hot arc temperature is 600 ℃～800 ℃, making primary activation section temperature is 800 ℃～900 ℃, making deep activation section temperature is 900 ℃～950 ℃, making activation cooling section temperature is 700 ℃～800 ℃, and the oxygen enrichment coefficient is 1.0～1.1.
In the method for aforesaid this blue charcoal preparing active carbon, described rake activation furnace is preferably 17 layers, and first to two layer is the pre-activated hot arc from top to bottom, and temperature is 700 ℃; The the 3rd to four layer is the primary activation section, and temperature is 850 ℃; The the 5th to 15 layer is the deep activation section, and temperature is 925 ℃; The the 16 to 17 layer is the activation cooling section, and temperature is 750 ℃.
In the method for aforesaid this blue charcoal preparing active carbon, overfire air fan sprays into the air jet of air through rake activation furnace surrounding in the rake activation furnace, for the reactivation process of blue charcoal provides activator.
In the method for aforesaid this blue charcoal preparing active carbon, the air capacity that sprays into through air jet by regulating overfire air fan, the secondary air flow of each layer of control rake activation furnace; Making the amount of feeding of deep activation section secondary air is 200～250Nm
3/ h/ layer, making the amount of feeding of activation cooling section secondary air is 300～400Nm
3/ h/ layer.
In aforesaid method, superheated vapour sprays in the rake activation furnace through the vapor injection port of pipeline and rake activation furnace surrounding, for the reactivation process of blue charcoal provides activator.
In aforesaid method, by the steam valve on the steam regulation jet orifice, control the quantity of steam of each layer of rake activation furnace, making the amount of feeding of primary activation section superheated vapour is 50～100kg/h/ layer, and the amount of feeding that makes deep activation section superheated vapour is 120～200kg/h/ layer.
Produce each layer of high-temperature flue gas control rake activation furnace temperature by the burner that rake activation furnace surrounding arranges, to control the priming reaction degree of depth; Control secondary air flow and the quantity of steam of each layer of rake activation furnace by overfire air fan and steam valve, satisfy the reaction conditions of blue charcoal reactivation process.
In aforesaid method, detect rake activation furnace inner gas pressure by pressure monitor, to control rake activation furnace inside and outside differential pressure at-100Pa～0Pa.
In the method for aforesaid this blue charcoal preparing active carbon, the activation tail gas that reactivation process produces is discharged through the tail gas outlet at rake activation furnace top, entering afterburner burns, the high-temperature flue gas that burning produces enters waste heat boiler, the superheated vapour that waste heat boiler produces returns to the rake activation furnace by vapor injection port, and flue gas enters flue gas processing device by fume extraction fan and processes rear discharging up to standard; The oxygen level that activates in tail gas is detected in the tail gas exit by oxygen conten analyser, controlling oxygen level is zero.
The above method has been controlled " burn and lose " process of the inner carbon of blue charcoal effectively, has promoted the increase of pore size, has improved big-and-middle porosity, has increased its surface-area, has increased the adsorptivity of gac.Simultaneously, by the activation control process, strictly control rate travel and the temperature rise of blue charcoal in activation furnace, improved the internal structure of blue charcoal, further improved the physical strength of product, improved the homogeneity of reaming, promoted the quality of activated carbon product.
In the method for aforesaid this blue charcoal preparing active carbon, be blown into cooling air by the axis cooling blower bottom axis, air rises along the axis boring, carry out cooling to axis, last air is discharged from the hot air outlet at axis top, as combustion air, another part enters atmosphere through chimney to a part in induced draft fan causes afterburner.
The present invention is also 0.5～2.0rpm by the speed of rotation of controlling axis in the rake activation furnace, thereby controls the stir speed of blue charcoal in the rake activation furnace, makes blue charcoal successively slowly move, to satisfy the blue needed time of charcoal reactivation process.
Realize the blue charcoal preparing active carbon device that preceding method uses, comprise screening plant, screw feeder, rake activation furnace, cooling screw, rotary conveyor and packaging system, rake activation furnace top is provided with opening for feed, rake activation furnace bottom is provided with discharge port, screening plant is connected with the opening for feed at rake activation furnace top by screw feeder, cooling screw is connected with the discharge port of rake activation furnace bottom, and cooling screw is connected with packaging system by rotary conveyor.
In aforesaid this blue charcoal preparing active carbon device, described rake activation furnace comprises axis, and axis is provided with rake teeth, and the outside of odd-level siege is provided with material falling hole from top to bottom, and the central authorities of even level siege are provided with material falling hole.
Aforesaid this blue charcoal preparing active carbon device, also comprise burner blower and gas distributing system, in the rake activation furnace except the pre-activated hot arc every layer be equipped with 2～6 burners, burner blower and gas distributing system all are connected with each burner in the rake activation furnace by pipeline.
Aforesaid this blue charcoal preparing active carbon device also comprises overfire air fan, in the rake activation furnace except the pre-activated hot arc every layer be equipped with 1～4 air jet, overfire air fan is connected respectively with each air jet by pipeline.
In aforesaid device, in the rake activation furnace except the pre-activated hot arc every layer be equipped with 2～6 vapor injection port.
In aforesaid device, in the rake activation furnace except the pre-activated hot arc every layer be equipped with 1～2 pressure monitor.
Aforesaid this blue charcoal preparing active carbon device, also comprise afterburner and waste heat boiler, rake activation furnace top is provided with the tail gas outlet, afterburner is connected with the tail gas outlet by pipeline, the connecting tube in tail gas exit is provided with oxygen conten analyser, afterburner is connected with waste heat boiler by pipeline, and waste heat boiler is connected respectively with each vapor injection port by pipeline, is equipped with steam valve on the connecting tube of waste heat boiler and each vapor injection port.
In aforesaid this blue charcoal preparing active carbon device, described waste heat boiler also is connected with boiler replenishing water device and flue gas processing device, and the connecting pipeline of waste heat boiler and flue gas processing device is provided with fume extraction fan.
In aforesaid this blue charcoal preparing active carbon device, also be provided with the axis cooling blower, axis cooling blower and axis bottom is connected, and the axis top is provided with hot air outlet, hot air outlet is connected with afterburner with chimney respectively by pipeline, and hot air outlet and afterburner connecting tube are provided with induced draft fan.
The freezing air that the axis cooling blower is supplied with, not only cooling axis guarantees its steady running, has also satisfied the needs of afterburner to air, and the heat that axis discharges is recycled.
Compared with prior art; due to the present invention take the blue charcoal product of overproduction as raw material; the active carbon from coal of production high product added value; both increased the industrial application approach of blue charcoal; expand the application space of blue charcoal, improve added value of product, simplify production stage; realize again the ton large-scale production of active carbon from coal, to satisfy the market requirement of gac.Produce each layer of high-temperature flue gas control rake activation furnace temperature by the burner that rake activation furnace surrounding arranges, control secondary air flow and the quantity of steam of each layer of rake activation furnace by overfire air fan and steam valve, satisfy the reaction conditions of blue charcoal reactivation process; Successively slowly move in the rake activation furnace by blue charcoal, satisfy the blue needed time of charcoal reactivation process; Control the priming reaction degree of depth by rake activation furnace temperature; With upper type, effectively controlled " burn and lose " process of the inner carbon of blue charcoal, promoted the increase of pore size, improved big-and-middle porosity, increased its surface-area, increased the adsorptivity of gac.Simultaneously, by the activation control process, strictly control rate travel and the temperature rise of blue charcoal in activation furnace, improved the internal structure of blue charcoal, further improved the physical strength of product, improved the homogeneity of reaming, promoted the quality of activated carbon product.The activation tail gas that utilizes reactivation process to produce fully burns at afterburner, produces heat, and carries out UTILIZATION OF VESIDUAL HEAT IN by waste heat boiler; The superheated vapour that waste heat boiler produces is supplied with the rake activation furnace, satisfies the steam needs of reactivation process; The freezing air that the axis cooling blower is supplied with, not only cooling axis guarantees its steady running, has also satisfied the needs of afterburner to air, and the heat that axis discharges is recycled.
Tradition with the technique of coal preparing active carbon is: standby coal (fragmentation, conveying, coal blending) → powder process → briquetting → oxidation → charing → activation (activating vent gas treatment, UTILIZATION OF VESIDUAL HEAT IN) → product is cooling → and the packing of product.This patent is intended with the blue charcoal byproduct preparing active carbon after the bituminous coal destructive distillation, and technique is: standby coal (screening, carry) → activation (activation vent gas treatment, UTILIZATION OF VESIDUAL HEAT IN) → product is cooling → and the packing of product.Both contrast as follows:
Through experimental study, blue charcoal is processed through traditional activation control process, and is as follows with the product quality contrast after processing through this patent activation control process:
The superiority that is enough to find out blue charcoal preparing active carbon from above-mentioned two tables.
Description of drawings
Fig. 1 is system diagram of the present invention.
being labeled as in accompanying drawing: 1-screw feeder, the 2-induced draft fan, the 3-afterburner, the 4-fume extraction fan, the 5-waste heat boiler, the 6-cooling screw, the 7-rotary conveyor, 8-rake activation furnace, 9-axis cooling blower, the 10-overfire air fan, the 11-burner blower, the 12-gas distributing system, the 13-screening plant, 14-boiler replenishing water device, the 15-flue gas processing device, the 16-packaging system, the outlet of 17-tail gas, the 18-hot air outlet, the 19-opening for feed, the 20-pressure monitor, the 21-discharge port, the 22-air jet, the 23-burner, the 24-vapor injection port, the 25-steam valve, the 26-axis, the 27-oxygen conten analyser.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples, but not as the present invention being done the foundation of any restriction.
Embodiments of the invention 1: as shown in Figure 1, a kind of method of blue charcoal preparing active carbon, get fugitive constituent greater than 5%, thermostability is greater than 70% blue charcoal, be that the blue charcoal of 5mm～20mm is sent into rake activation furnace 8 and carried out activation treatment with granularity after screening, generate gac, the conveying that gac is discharged by cooling screw 6 cooling process and rotary conveyor 7 from rake activation furnace 8 enters the gac packing department at last, screens packing.Blue charcoal is from opening for feed 19 chargings of the close activation furnace axis 26 in rake activation furnace 8 tops, fall into the first layer siege, blue charcoal material on the first layer siege stirs under the stirring of rake teeth from inside to outside, and namely outer rake, then fall into second layer siege by the material falling hole outside siege, blue charcoal material ecto-entad under the stirring of rake teeth on second layer siege stirs, rake namely, then the material falling hole by siege central authorities falls into lower one deck siege, outer rake, fall into lower one deck siege, interior rake by the material falling hole outside siege again; The like, until fall into the bottom siege, draw off finally by the discharge port 21 of rake activation furnace 8 bottoms.Totally 15 layers of rake activation furnaces 8, first to two layer is the pre-activated hot arc from top to bottom, and the 3rd to four layer is the primary activation section, and last is to activate cooling section to two layers, and all the other are the deep activation section.In the rake activation furnace, axis rotates with 0.5rpm.
Overfire air fan 10 sprays into the air jet 22 of air through rake activation furnace 8 surroundings in rake activation furnace 8, for the reactivation process of blue charcoal provides activator.The air capacity that sprays into through air jet 22 by regulating overfire air fan 10, the secondary air flow of control rake activation furnace 8 each layers; Making the amount of feeding of deep activation section secondary air is 200Nm
3/ h/ layer, making the amount of feeding of activation cooling section secondary air is 300Nm
3/ h/ layer.
Superheated vapour sprays in rake activation furnace 8 through the vapor injection port 24 of pipeline and rake activation furnace 8 surroundings, for the reactivation process of blue charcoal provides activator.By the steam valve 25 on steam regulation jet orifice 24, control the quantity of steam of rake activation furnace 8 each layers, making the amount of feeding of primary activation section superheated vapour is the 50kg/h/ layer, the amount of feeding that makes deep activation section superheated vapour is the 120kg/h/ layer.
Detect rake activation furnace 8 interior gaseous tensions by pressure monitor 20, to control rake activation furnace 8 inside and outside differential pressures at-100Pa.
The activation tail gas that reactivation process produces is discharged through the tail gas outlet 17 at rake activation furnace 8 tops, entering afterburner 3 burns, the high-temperature flue gas that burning produces enters waste heat boiler 5, the superheated vapour that waste heat boiler 5 produces returns to rake activation furnace 8 by vapor injection port 24, and flue gas enters flue gas processing device 15 by fume extraction fan 4 and processes rear discharging up to standard; The oxygen level that activates in tail gas detects by oxygen conten analyser 27 in tail gas outlet 17 places, and controlling oxygen level is zero.Be blown into cooling air by axis cooling blower 9 from axis 26 bottoms, air rises along axis 26 borings, carry out cooling to axis 26, last air is discharged from the hot air outlet 18 at axis 26 tops, it is interior as combustion air that a part causes afterburner 3 through induced draft fan 2, and another part enters atmosphere through chimney.
Realize the blue charcoal preparing active carbon device that preceding method uses, comprise screening plant 13, screw feeder 1, rake activation furnace 8, cooling screw 6, rotary conveyor 7 and packaging system 16, rake activation furnace 8 tops are provided with opening for feed 19, rake activation furnace 8 bottoms are provided with discharge port 21, screening plant 13 is connected with the opening for feed 19 at rake activation furnace 8 tops by screw feeder 1, cooling screw 6 is connected with the discharge port 21 of rake activation furnace 8 bottoms, and cooling screw 6 is connected with packaging system 16 by rotary conveyor 7.
Described rake activation furnace 8 comprises axis 26, and axis 26 is provided with rake teeth, and the outside of odd-level siege is provided with material falling hole from top to bottom, and the central authorities of even level siege are provided with material falling hole.
Device also comprises burner blower 11 and gas distributing system 12, in rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 2～6 burners 23, burner blower 11 and gas distributing system 12 all are connected by pipeline and interior each burner 23 of rake activation furnace 8.Device also comprises overfire air fan 10, in rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 1 air jet 22, overfire air fan 10 is connected respectively with each air jet 22 by pipeline.
In rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 2 vapor injection port 24; In rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 1 pressure monitor 20.
Device also comprises afterburner 3 and waste heat boiler 5, rake activation furnace 8 tops are provided with tail gas outlet 17, afterburner 3 is connected with tail gas outlet 17 by pipeline, the connecting tube at tail gas outlet 17 places is provided with oxygen conten analyser 27, afterburner 3 is connected with waste heat boiler 5 by pipeline, waste heat boiler 5 is connected respectively with each vapor injection port 24 by pipeline, is equipped with steam valve 25 on the connecting tube of waste heat boiler 5 and each vapor injection port 24.
Described waste heat boiler 5 also is connected with boiler replenishing water device 14 and flue gas processing device 15, and waste heat boiler 5 is provided with fume extraction fan 4 with the connecting pipeline of flue gas processing device 15.
Also be provided with axis cooling blower 9, axis cooling blower 9 is connected with axis 26 bottoms, axis 26 tops are provided with hot air outlet 18, and hot air outlet 18 is connected with afterburner 3 with chimney respectively by pipeline, and hot air outlet 18 is provided with induced draft fan 2 with afterburner 3 connecting tubes.
Embodiments of the invention 2: as shown in Figure 1, a kind of method of blue charcoal preparing active carbon, get fugitive constituent greater than 10%, thermostability is greater than 70% blue charcoal, be that the blue charcoal of 5mm～20mm is sent into rake activation furnace 8 and carried out activation treatment with granularity after screening, generate gac, the conveying that gac is discharged by cooling screw 6 cooling process and rotary conveyor 7 from rake activation furnace 8 enters the gac packing department at last, screens packing.Blue charcoal is from opening for feed 19 chargings of the close activation furnace axis 26 in rake activation furnace 8 tops, fall into the first layer siege, blue charcoal material on the first layer siege stirs under the stirring of rake teeth from inside to outside, and namely outer rake, then fall into second layer siege by the material falling hole outside siege, blue charcoal material ecto-entad under the stirring of rake teeth on second layer siege stirs, rake namely, then the material falling hole by siege central authorities falls into lower one deck siege, outer rake, fall into lower one deck siege, interior rake by the material falling hole outside siege again; The like, until fall into the bottom siege, draw off finally by the discharge port 21 of rake activation furnace 8 bottoms.
Totally 17 layers of rake activation furnaces 8, first to two layer is the pre-activated hot arc from top to bottom, and the 3rd to four layer is the primary activation section, and last is to activate cooling section to two layers, and all the other are the deep activation section.In the rake activation furnace, axis rotates with 1.5rpm.
Overfire air fan 10 sprays into the air jet 22 of air through rake activation furnace 8 surroundings in rake activation furnace 8, for the reactivation process of blue charcoal provides activator.
The air capacity that sprays into through air jet 22 by regulating overfire air fan 10, the secondary air flow of control rake activation furnace 8 each layers; Making the amount of feeding of deep activation section secondary air is 225Nm
3/ h/ layer, making the amount of feeding of activation cooling section secondary air is 350Nm
3/ h/ layer.
Superheated vapour sprays in rake activation furnace 8 through the vapor injection port 24 of pipeline and rake activation furnace 8 surroundings, for the reactivation process of blue charcoal provides activator.
By the steam valve 25 on steam regulation jet orifice 24, control the quantity of steam of rake activation furnace 8 each layers, making the amount of feeding of primary activation section superheated vapour is the 75kg/h/ layer, the amount of feeding that makes deep activation section superheated vapour is the 160kg/h/ layer.
Detect rake activation furnace 8 interior gaseous tensions by pressure monitor 20, to control rake activation furnace 8 inside and outside differential pressures at-50Pa.
The activation tail gas that reactivation process produces is discharged through the tail gas outlet 17 at rake activation furnace 8 tops, entering afterburner 3 burns, the high-temperature flue gas that burning produces enters waste heat boiler 5, the superheated vapour that waste heat boiler 5 produces returns to rake activation furnace 8 by vapor injection port 24, and flue gas enters flue gas processing device 15 by fume extraction fan 4 and processes rear discharging up to standard; The oxygen level that activates in tail gas detects by oxygen conten analyser 27 in tail gas outlet 17 places, and controlling oxygen level is zero.
Be blown into cooling air by axis cooling blower 9 from axis 26 bottoms, air rises along axis 26 borings, carry out cooling to axis 26, last air is discharged from the hot air outlet 18 at axis 26 tops, it is interior as combustion air that a part causes afterburner 3 through induced draft fan 2, and another part enters atmosphere through chimney.
Realize the blue charcoal preparing active carbon device that preceding method uses, comprise screening plant 13, screw feeder 1, rake activation furnace 8, cooling screw 6, rotary conveyor 7 and packaging system 16, rake activation furnace 8 tops are provided with opening for feed 19, rake activation furnace 8 bottoms are provided with discharge port 21, screening plant 13 is connected with the opening for feed 19 at rake activation furnace 8 tops by screw feeder 1, cooling screw 6 is connected with the discharge port 21 of rake activation furnace 8 bottoms, and cooling screw 6 is connected with packaging system 16 by rotary conveyor 7.
Described rake activation furnace 8 comprises axis 26, and axis 26 is provided with rake teeth, and the outside of odd-level siege is provided with material falling hole from top to bottom, and the central authorities of even level siege are provided with material falling hole.
Device also comprises burner blower 11 and gas distributing system 12, in rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 2～6 burners 23, burner blower 11 and gas distributing system 12 all are connected by pipeline and interior each burner 23 of rake activation furnace 8.
Device also comprises overfire air fan 10, in rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 2 air jets 22, overfire air fan 10 is connected respectively with each air jet 22 by pipeline; In rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 4 vapor injection port 24; In rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 1 pressure monitor 20.
Device also comprises afterburner 3 and waste heat boiler 5, rake activation furnace 8 tops are provided with tail gas outlet 17, afterburner 3 is connected with tail gas outlet 17 by pipeline, the connecting tube at tail gas outlet 17 places is provided with oxygen conten analyser 27, afterburner 3 is connected with waste heat boiler 5 by pipeline, waste heat boiler 5 is connected respectively with each vapor injection port 24 by pipeline, is equipped with steam valve 25 on the connecting tube of waste heat boiler 5 and each vapor injection port 24.
Described waste heat boiler 5 also is connected with boiler replenishing water device 14 and flue gas processing device 15, and waste heat boiler 5 is provided with fume extraction fan 4 with the connecting pipeline of flue gas processing device 15.
Also be provided with axis cooling blower 9, axis cooling blower 9 is connected with axis 26 bottoms, axis 26 tops are provided with hot air outlet 18, and hot air outlet 18 is connected with afterburner 3 with chimney respectively by pipeline, and hot air outlet 18 is provided with induced draft fan 2 with afterburner 3 connecting tubes.
Embodiments of the invention 3: as shown in Figure 1, get fugitive constituent greater than 10%, thermostability is greater than 70% blue charcoal, be that the blue charcoal of 5mm～20mm is sent into rake activation furnace 8 and carried out activation treatment with granularity after screening, generate gac, the conveying that gac is discharged by cooling screw 6 cooling process and rotary conveyor 7 from rake activation furnace 8, enter at last the gac packing department, screen packing.Blue charcoal is from opening for feed 19 chargings of the close activation furnace axis 26 in rake activation furnace 8 tops, fall into the first layer siege, blue charcoal material on the first layer siege stirs under the stirring of rake teeth from inside to outside, and namely outer rake, then fall into second layer siege by the material falling hole outside siege, blue charcoal material ecto-entad under the stirring of rake teeth on second layer siege stirs, rake namely, then the material falling hole by siege central authorities falls into lower one deck siege, outer rake, fall into lower one deck siege, interior rake by the material falling hole outside siege again; The like, until fall into the bottom siege, draw off finally by the discharge port 21 of rake activation furnace 8 bottoms.Totally 20 layers of rake activation furnaces 8, first to two layer is the pre-activated hot arc from top to bottom, and the 3rd to four layer is the primary activation section, and last is to activate cooling section to two layers, and all the other are the deep activation section.In the rake activation furnace, axis rotates with 2.0rpm.
Superheated vapour sprays in rake activation furnace 8 through the vapor injection port 24 of pipeline and rake activation furnace 8 surroundings, for the reactivation process of blue charcoal provides activator.By the steam valve 25 on steam regulation jet orifice 24, control the quantity of steam of rake activation furnace 8 each layers, making the amount of feeding of primary activation section superheated vapour is the 100kg/h/ layer, the amount of feeding that makes deep activation section superheated vapour is the 200kg/h/ layer.
Detect rake activation furnace 8 interior gaseous tensions by pressure monitor 20, to control rake activation furnace 8 inside and outside differential pressures at 0Pa.
The activation tail gas that reactivation process produces is discharged through the tail gas outlet 17 at rake activation furnace 8 tops, entering afterburner 3 burns, the high-temperature flue gas that burning produces enters waste heat boiler 5, the superheated vapour that waste heat boiler 5 produces returns to rake activation furnace 8 by vapor injection port 24, and flue gas enters flue gas processing device 15 by fume extraction fan 4 and processes rear discharging up to standard; The oxygen level that activates in tail gas detects by oxygen conten analyser 27 in tail gas outlet 17 places, and controlling oxygen level is zero.
Be blown into cooling air by axis cooling blower 9 from axis 26 bottoms, air rises along axis 26 borings, carry out cooling to axis 26, last air is discharged from the hot air outlet 18 at axis 26 tops, it is interior as combustion air that a part causes afterburner 3 through induced draft fan 2, and another part enters atmosphere through chimney.
Realize the blue charcoal preparing active carbon device that preceding method uses, comprise screening plant 13, screw feeder 1, rake activation furnace 8, cooling screw 6, rotary conveyor 7 and packaging system 16, rake activation furnace 8 tops are provided with opening for feed 19, rake activation furnace 8 bottoms are provided with discharge port 21, screening plant 13 is connected with the opening for feed 19 at rake activation furnace 8 tops by screw feeder 1, cooling screw 6 is connected with the discharge port 21 of rake activation furnace 8 bottoms, and cooling screw 6 is connected with packaging system 16 by rotary conveyor 7.Described rake activation furnace 8 comprises axis 26, and axis 26 is provided with rake teeth, and the outside of odd-level siege is provided with material falling hole from top to bottom, and the central authorities of even level siege are provided with material falling hole.
Device also comprises burner blower 11 and gas distributing system 12, in rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 2～6 burners 23, burner blower 11 and gas distributing system 12 all are connected by pipeline and interior each burner 23 of rake activation furnace 8.
Device also comprises overfire air fan 10, in rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 4 air jets 22, overfire air fan 10 is connected respectively with each air jet 22 by pipeline.
In rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 6 vapor injection port 24; In rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 2 pressure monitors 20.
Device also comprises afterburner 3 and waste heat boiler 5, rake activation furnace 8 tops are provided with tail gas outlet 17, afterburner 3 is connected with tail gas outlet 17 by pipeline, the connecting tube at tail gas outlet 17 places is provided with oxygen conten analyser 27, afterburner 3 is connected with waste heat boiler 5 by pipeline, waste heat boiler 5 is connected respectively with each vapor injection port 24 by pipeline, is equipped with steam valve 25 on the connecting tube of waste heat boiler 5 and each vapor injection port 24.
Described waste heat boiler 5 also is connected with boiler replenishing water device 14 and flue gas processing device 15, and waste heat boiler 5 is provided with fume extraction fan 4 with the connecting pipeline of flue gas processing device 15.
Also be provided with axis cooling blower 9, axis cooling blower 9 is connected with axis 26 bottoms, axis 26 tops are provided with hot air outlet 18, and hot air outlet 18 is connected with afterburner 3 with chimney respectively by pipeline, and hot air outlet 18 is provided with induced draft fan 2 with afterburner 3 connecting tubes.
Embodiments of the invention 4: as shown in Figure 1, get fugitive constituent greater than 10%, thermostability is greater than 70% blue charcoal, be that the blue charcoal of 5mm～20mm is sent into rake activation furnace 8 and carried out activation treatment with granularity after screening, generate gac, the conveying that gac is discharged by cooling screw 6 cooling process and rotary conveyor 7 from rake activation furnace 8, enter at last the gac packing department, screen packing.Blue charcoal is from opening for feed 19 chargings of the close activation furnace axis 26 in rake activation furnace 8 tops, fall into the first layer siege, blue charcoal material on the first layer siege stirs under the stirring of rake teeth from inside to outside, and namely outer rake, then fall into second layer siege by the material falling hole outside siege, blue charcoal material ecto-entad under the stirring of rake teeth on second layer siege stirs, rake namely, then the material falling hole by siege central authorities falls into lower one deck siege, outer rake, fall into lower one deck siege, interior rake by the material falling hole outside siege again; The like, until fall into the bottom siege, draw off finally by the discharge port 21 of rake activation furnace 8 bottoms.
Totally 17 layers of rake activation furnaces 8, first to two layer is the pre-activated hot arc from top to bottom, and the 3rd to four layer is the primary activation section, and last is to activate cooling section to two layers, and all the other are the deep activation section.In the rake activation furnace, axis rotates with 1.5rpm.
Detect rake activation furnace 8 interior gaseous tensions by pressure monitor 20, to control rake activation furnace 8 inside and outside differential pressures at-50Pa.
Be blown into cooling air by axis cooling blower 9 from axis 26 bottoms, air rises along axis 26 borings, axis 26 is carried out cooling, and last air is discharged from the hot air outlet 18 at axis 26 tops, enters atmosphere through chimney.
Realize the blue charcoal preparing active carbon device that preceding method uses, comprise screening plant 13, screw feeder 1, rake activation furnace 8, cooling screw 6, rotary conveyor 7 and packaging system 16, rake activation furnace 8 tops are provided with opening for feed 19, rake activation furnace 8 bottoms are provided with discharge port 21, screening plant 13 is connected with the opening for feed 19 at rake activation furnace 8 tops by screw feeder 1, cooling screw 6 is connected with the discharge port 21 of rake activation furnace 8 bottoms, and cooling screw 6 is connected with packaging system 16 by rotary conveyor 7.
Described rake activation furnace 8 comprises axis 26, and axis 26 is provided with rake teeth, and the outside of odd-level siege is provided with material falling hole from top to bottom, and the central authorities of even level siege are provided with material falling hole.
Device also comprises burner blower 11 and gas distributing system 12, in rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 2～6 burners 23, burner blower 11 and gas distributing system 12 all are connected by pipeline and interior each burner 23 of rake activation furnace 8.
Device also comprises overfire air fan 10, in rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 2 air jets 22, overfire air fan 10 is connected respectively with each air jet 22 by pipeline; In rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 4 vapor injection port 24; In rake activation furnace 8 except the pre-activated hot arc every layer be equipped with 1 pressure monitor 20.
Also be provided with axis cooling blower 9, axis cooling blower 9 is connected with axis 26 bottoms, and axis 26 tops are provided with hot air outlet 18, and hot air outlet 18 is connected with chimney by pipeline.
Embodiments of the invention 5: as shown in Figure 1, get fugitive constituent greater than 10%, thermostability is greater than 70% blue charcoal, be that the blue charcoal of 5mm～20mm is sent into rake activation furnace 8 and carried out activation treatment with granularity after screening, generate gac, the conveying that gac is discharged by cooling screw 6 cooling process and rotary conveyor 7 from rake activation furnace 8, enter at last the gac packing department, screen packing.Blue charcoal is from opening for feed 19 chargings of the close activation furnace axis 26 in rake activation furnace 8 tops, fall into the first layer siege, blue charcoal material on the first layer siege stirs under the stirring of rake teeth from inside to outside, and namely outer rake, then fall into second layer siege by the material falling hole outside siege, blue charcoal material ecto-entad under the stirring of rake teeth on second layer siege stirs, rake namely, then the material falling hole by siege central authorities falls into lower one deck siege, outer rake, fall into lower one deck siege, interior rake by the material falling hole outside siege again; The like, until fall into the bottom siege, draw off finally by the discharge port 21 of rake activation furnace 8 bottoms.
Totally 17 layers of rake activation furnaces 8, first to two layer is the pre-activated hot arc from top to bottom, and the 3rd to four layer is the primary activation section, and last is to activate cooling section to two layers, and all the other are the deep activation section.In the rake activation furnace, axis rotates with 1.5rpm.
The activation tail gas that reactivation process produces is discharged through the tail gas outlet 17 at rake activation furnace 8 tops.
Realize the blue charcoal preparing active carbon device that preceding method uses, comprise screening plant 13, screw feeder 1, rake activation furnace 8, cooling screw 6, rotary conveyor 7 and packaging system 16, rake activation furnace 8 tops are provided with opening for feed 19, rake activation furnace 8 bottoms are provided with discharge port 21, screening plant 13 is connected with the opening for feed 19 at rake activation furnace 8 tops by screw feeder 1, cooling screw 6 is connected with the discharge port 21 of rake activation furnace 8 bottoms, and cooling screw 6 is connected with packaging system 16 by rotary conveyor 7.
Described rake activation furnace 8 comprises axis 26, and axis 26 is provided with rake teeth, and the outside of odd-level siege is provided with material falling hole from top to bottom, and the central authorities of even level siege are provided with material falling hole.Rake activation furnace 8 tops are provided with tail gas outlet 17.
Embodiments of the invention 6: as shown in Figure 1, a kind of method of blue charcoal preparing active carbon, get fugitive constituent greater than 10%, thermostability is greater than 70% blue charcoal, be that the blue charcoal of 5mm～20mm is sent into rake activation furnace 8 and carried out activation treatment with granularity after screening, generate gac, the conveying that gac is discharged by cooling screw 6 cooling process and rotary conveyor 7 from rake activation furnace 8 enters the gac packing department at last, screens packing.
Realize the blue charcoal preparing active carbon device that preceding method uses, comprise screening plant 13, screw feeder 1, rake activation furnace 8, cooling screw 6, rotary conveyor 7 and packaging system 16, rake activation furnace 8 tops are provided with opening for feed 19, rake activation furnace 8 bottoms are provided with discharge port 21, screening plant 13 is connected with the opening for feed 19 at rake activation furnace 8 tops by screw feeder 1, cooling screw 6 is connected with the discharge port 21 of rake activation furnace 8 bottoms, and cooling screw 6 is connected with packaging system 16 by rotary conveyor 7.
Claims (22)
1. the method for a blue charcoal preparing active carbon, it is characterized in that: get fugitive constituent greater than 5%, thermostability is greater than 70% blue charcoal, be that the blue charcoal of 5mm～20mm is sent into rake activation furnace (8) and carried out activation treatment with granularity after screening, generate gac, gac is from the conveying of rake activation furnace (8) discharge by cooling screw (6) cooling process and rotary conveyor (7), enter at last the gac packing department, screen packing.
2. the method for a kind of blue charcoal preparing active carbon according to claim 1, it is characterized in that: blue charcoal is from opening for feed (19) charging of the close activation furnace axis (26) in rake activation furnace (8) top, fall into the first layer siege, blue charcoal material on the first layer siege stirs under the stirring of rake teeth from inside to outside, rake namely, then fall into second layer siege by the material falling hole outside siege, blue charcoal material ecto-entad under the stirring of rake teeth on second layer siege stirs, rake namely, then the material falling hole by siege central authorities falls into lower one deck siege, outer rake, fall into lower one deck siege by the material falling hole outside siege again, interior rake, the like, until fall into the bottom siege, draw off finally by the discharge port (21) bottom rake activation furnace (8).
3. the method for a kind of blue charcoal preparing active carbon according to claim 2, it is characterized in that: totally 15～20 layers of rake activation furnaces (8), first to two layer is the pre-activated hot arc from top to bottom, the the 3rd to four layer is the primary activation section, last is to activate cooling section to two layers, and all the other are the deep activation section.
4. the method for a kind of blue charcoal preparing active carbon according to claim 3, it is characterized in that: burner blower (11) blasts air the burner (23) of the interior surrounding of rake activation furnace (8), natural gas via pipeline in gas distributing system (12) flows to burner (23), the mixed firing in burner (23) of Sweet natural gas and air produces high-temperature flue gas, for the reactivation process of blue charcoal provides heat.
5. the method for a kind of blue charcoal preparing active carbon according to claim 4, it is characterized in that: the high-temperature flue gas that produces by control combustion device (23) is to control the interior oxygen enrichment coefficient of rake activation furnace (8) and each layer temperature, making pre-activated hot arc temperature is 600 ℃～800 ℃, making primary activation section temperature is 800 ℃～900 ℃, making deep activation section temperature is 900 ℃～950 ℃, making activation cooling section temperature is 700 ℃～800 ℃, and the oxygen enrichment coefficient is 1.0～1.1.
6. the method for a kind of blue charcoal preparing active carbon according to claim 5, it is characterized in that: described rake activation furnace (8) has 17 layers, and first to two layer is the pre-activated hot arc from top to bottom, and temperature is 700 ℃; The the 3rd to four layer is the primary activation section, and temperature is 850 ℃; The the 5th to 15 layer is the deep activation section, and temperature is 925 ℃; The the 16 to 17 layer is the activation cooling section, and temperature is 750 ℃.
7. the method for a kind of blue charcoal preparing active carbon according to claim 4, it is characterized in that: overfire air fan (10) sprays into the air jet (22) of air through rake activation furnace (8) surrounding in rake activation furnace (8), for the reactivation process of blue charcoal provides activator.
8. the method for a kind of blue charcoal preparing active carbon according to claim 7, is characterized in that: the air capacity that sprays into through air jet (22) by regulating overfire air fan (10), the secondary air flow of each layer of control rake activation furnace (8); Making the amount of feeding of deep activation section secondary air is 200～250Nm
3/ h/ layer, making the amount of feeding of activation cooling section secondary air is 300～400Nm
3/ h/ layer.
9. the method for according to claim 4 or 7 described a kind of blue charcoal preparing active carbons, it is characterized in that: superheated vapour sprays in rake activation furnace (8) through the vapor injection port (24) of pipeline and rake activation furnace (8) surrounding, for the reactivation process of blue charcoal provides activator.
10. the method for a kind of blue charcoal preparing active carbon according to claim 9, it is characterized in that: by the steam valve (25) on steam regulation jet orifice (24), control the quantity of steam of each layer of rake activation furnace (8), making the amount of feeding of primary activation section superheated vapour is 50～100kg/h/ layer, and the amount of feeding that makes deep activation section superheated vapour is 120～200kg/h/ layer.
11. the method for a kind of blue charcoal preparing active carbon according to claim 9 is characterized in that: detect interior the gaseous tension of rake activation furnace (8) by pressure monitor (20), with control rake activation furnace (8) inside and outside differential pressure at-100Pa～0Pa.
12. the method for a kind of blue charcoal preparing active carbon according to claim 10, it is characterized in that: the activation tail gas that reactivation process produces is discharged through the tail gas outlet (17) at rake activation furnace (8) top, entering afterburner (3) burns, the high-temperature flue gas that burning produces enters waste heat boiler (5), the superheated vapour that waste heat boiler (5) produces returns to rake activation furnace (8) by vapor injection port (24), and flue gas enters flue gas processing device (15) by fume extraction fan (4) and processes rear discharging up to standard; Tail gas outlet (17) is located to detect by oxygen conten analyser (27) oxygen level that activates in tail gas, and controlling oxygen level is zero.
13. the method for a kind of blue charcoal preparing active carbon according to claim 10, it is characterized in that: be blown into cooling air by axis cooling blower (9) bottom axis (26), air rises along axis (26) boring, carry out cooling to axis (26), last air is discharged from the hot air outlet (18) at axis (26) top, as combustion air, another part enters atmosphere through chimney to a part in induced draft fan (2) causes afterburner (3).
14. blue charcoal preparing active carbon device of realizing that the described method of claim 1～13 any one is used, it is characterized in that: comprise screening plant (13), screw feeder (1), rake activation furnace (8), cooling screw (6), rotary conveyor (7) and packaging system (16), rake activation furnace (8) top is provided with opening for feed (19), rake activation furnace (8) bottom is provided with discharge port (21), screening plant (13) is connected with the opening for feed (19) at rake activation furnace (8) top by screw feeder (1), cooling screw (6) is connected with the discharge port (21) of rake activation furnace (8) bottom, cooling screw (6) is connected with packaging system (16) by rotary conveyor (7).
15. a kind of blue charcoal preparing active carbon device according to claim 14, it is characterized in that: described rake activation furnace (8) comprises axis (26), axis (26) is provided with rake teeth, and the outside of odd-level siege is provided with material falling hole from top to bottom, and the central authorities of even level siege are provided with material falling hole.
16. a kind of blue charcoal preparing active carbon device according to claim 15, it is characterized in that: also comprise burner blower (11) and gas distributing system (12), in rake activation furnace (8) except the pre-activated hot arc every layer be equipped with 2～6 burners (23), burner blower (11) and gas distributing system (12) all are connected by pipeline and interior each burner (23) of rake activation furnace (8).
17. a kind of blue charcoal preparing active carbon device according to claim 15, it is characterized in that: this device also comprises overfire air fan (10), in rake activation furnace (8) except the pre-activated hot arc every layer be equipped with 1～4 air jet (22), overfire air fan (10) is connected respectively with each air jet (22) by pipeline.
18. a kind of blue charcoal preparing active carbon device according to claim 15 is characterized in that: in rake activation furnace (8) except the pre-activated hot arc every layer be equipped with 2～6 vapor injection port (24).
19. according to claim 16～18 described a kind of blue charcoal preparing active carbon devices is characterized in that: in rake activation furnace (8) except the pre-activated hot arc every layer be equipped with 1～2 pressure monitor (20).
20. a kind of blue charcoal preparing active carbon device according to claim 18, it is characterized in that: this device also comprises afterburner (3) and waste heat boiler (5), rake activation furnace (8) top is provided with tail gas outlet (17), afterburner (3) is connected with tail gas outlet (17) by pipeline, the connecting tube that tail gas outlet (17) is located is provided with oxygen conten analyser (27), afterburner (3) is connected with waste heat boiler (5) by pipeline, waste heat boiler (5) is connected respectively with each vapor injection port (24) by pipeline, be equipped with steam valve (25) on the connecting tube of waste heat boiler (5) and each vapor injection port (24).
21. a kind of blue charcoal preparing active carbon device according to claim 20, it is characterized in that: described waste heat boiler (5) also is connected with boiler replenishing water device (14) and flue gas processing device (15), and waste heat boiler (5) is provided with fume extraction fan (4) with the connecting pipeline of flue gas processing device (15).
22. a kind of blue charcoal preparing active carbon device according to claim 20, it is characterized in that: also be provided with axis cooling blower (9), axis cooling blower (9) is connected bottom axis (26), axis (26) top is provided with hot air outlet (18), hot air outlet (18) is connected with afterburner (3) with chimney respectively by pipeline, and hot air outlet (18) is provided with induced draft fan (2) with afterburner (3) connecting tube.
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| CN104163425A (en) * | 2014-08-06 | 2014-11-26 | 程振国 | Production method for semicoke-based active carbon |
| CN104310393A (en) * | 2014-09-29 | 2015-01-28 | 大连理工大学 | A device for continuous production of activated carbon and a method for preparing activated carbon using the device |
| CN104773731A (en) * | 2015-04-02 | 2015-07-15 | 煤炭科学技术研究院有限公司 | Method for preparing active carbon by using multi-hearth furnace |
| CN108059163A (en) * | 2018-01-10 | 2018-05-22 | 浙江省林业科学研究院 | A kind of activation method of producing activated carbon by chemical method and its external-heat activation furnace |
| CN108083944A (en) * | 2017-12-22 | 2018-05-29 | 西安建筑科技大学 | A kind of soil conditioner and preparation method thereof |
| CN109250700A (en) * | 2018-08-16 | 2019-01-22 | 内蒙古万众炜业科技环保股份公司 | Semi-coke production recycling residual heat system and its application method |
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| CN115303821A (en) * | 2022-07-05 | 2022-11-08 | 宁夏金海东泰洁能有限公司 | Semi coke end forming treatment system |
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| CN103449432A (en) * | 2013-08-30 | 2013-12-18 | 林旭 | Spouted type activation furnace and method for producing super-capacitor carbon by virtue of same |
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| CN104310393A (en) * | 2014-09-29 | 2015-01-28 | 大连理工大学 | A device for continuous production of activated carbon and a method for preparing activated carbon using the device |
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| CN113968580B (en) * | 2021-10-13 | 2023-08-04 | 陕西浩江煤业集团煤化工有限公司 | Powdered activated carbon regeneration process based on activation furnace |
| CN114790002A (en) * | 2022-05-30 | 2022-07-26 | 舒克孝 | Cross bed active carbon activation device is crossed to cross flow multilayer |
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