CN105417539A - Waste carbon recycling and regenerating system - Google Patents
Waste carbon recycling and regenerating system Download PDFInfo
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- CN105417539A CN105417539A CN201610027710.2A CN201610027710A CN105417539A CN 105417539 A CN105417539 A CN 105417539A CN 201610027710 A CN201610027710 A CN 201610027710A CN 105417539 A CN105417539 A CN 105417539A
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Abstract
The invention provides a waste carbon recycling and regenerating system. The waste carbon recycling and regenerating system comprises a rotary incinerator, wherein the rotary incinerator is provided with a furnace body and a reaction chamber which penetrates through the furnace body; a heat insulation wall is arranged in the furnace body and is used for separating the furnace body into a high temperature chamber and a heating chamber which are communicated; the high temperature chamber is provided with a mixed gas input end and a plurality of fuel gas heating ends; the heating chamber is provided with a discharging flue; the reaction chamber comprises a waste carbon input section, a reaction section and a product output section which are sequentially arranged; the waste carbon input section and the product output section are both positioned at the outer part of the furnace body; the reaction section is positioned in the heating chamber. By adopting the technical scheme, according to the waste carbon recycling and regenerating system provided by the invention, regeneration of waste activated carbon is realized through a rotary incineration way; the high temperature chamber and the heating chamber of the rotary incinerator are arranged through the heat insulation wall, and combustion gases are provided by the high temperature chamber from the mixed gas input end and the fuel gas heating ends of the high temperature chamber, so that particulate carbon can be well revived and regenerated, and repeated utilization is realized.
Description
Technical field
The present invention relates to useless charcoal to reclaim, in particular, a kind of useless charcoal reclaiming system.
Background technology
Gac, also known as active black, is by being that main material makes raw material containing charcoal, through the hydrophobic adsorbent that high temperature carbonization and activation obtain.Gac contains a large amount of micropore, has huge specific surface area, can effectively remove colourity, stink, can remove most organic pollutants and some inorganics in water or air, comprise the heavy metal that some is poisonous.Affect charcoal absorption because have: the characteristic of gac; The characteristic of adsorbate and concentration; The pH value of waste water; The characteristics such as suspended solids content; Contact system and operation scheme etc.Such as, gac energy active adsorption hydrochloric ether, Organophosphorus and carbamate pesticides insecticides, can also adsorb phenylate, positive nitro-chlorobenzene, naphthalene, ethene, xylenol, phenol, DDT, aldrin, alkyl benzene sulphonate (ABS) and many ester classes and aromatic hydroxy compound.
Gac is black powder or bulk, particulate state, cellular decolorizing carbon, also has the crystal carbon that arrangement is regular.In gac except carbon, also comprise two class admixtures: a class is chemically combined element, mainly oxygen and hydrogen, these elements remain in charcoal owing to not carbonizing completely, or in reactivation process, external non-carbon is combined with Surface Chemistry of Activated Carbon; Another kind of admixture is ash content, and it is the inorganic part of gac; Ash content easily causes secondary pollution in activated carbon.
The main raw material of gac can be almost all organic materialss being rich in carbon, as coal, timber, shell, coconut husk, nut-shell, apricot shell, jujube shell etc.These carbonaceous materials, in activation furnace, are converted into gac by pyrolysis under high temperature and certain pressure.In this reactivation process, huge surface-area and complicated pore texture are formed gradually, and so-called adsorption process is just in these holes and to carry out on the surface, the size of gac mesoporosity has the effect of adsorption selection to adsorbate, this is the cause that can not enter due to macromole in the activated carbon pore size less than its hole
Such as, from theoretically strict, the surface-area that the interception capacity of suspended substance is provided from gac that gac has.When flow velocity is low, the filtration capacity of unit screens out effect mainly from gac, and when flow velocity is fast, filtration capacity is from the adsorption on activated carbon granule surface, the granule surface area that gac provides in filtration procedure is larger, stronger to the sticking power of suspended substance in water.
Therefore, a large amount of gacs is widely used in the industries such as medicine, chemical industry and food, and sewage disposal association area; But how regenerating waste and old gac, avoid burning waste, is the problem needing to solve.
Summary of the invention
The invention provides a kind of useless charcoal reclaiming system newly, technical problem to be solved how is burned the high temperature chamber and heating chamber, the heating chamber how arranging rotary incinerator and the reaction chamber of part in heating chamber, the useless charcoal input section how arranging reaction chamber and conversion zone and output of products section, the mixed gas input terminus how arranging high temperature chamber and the some gas heating ends etc. that realize regenerating waste and old gac, how arranged by insulated wall rotary incinerator.
Technical scheme of the present invention is as follows: a kind of useless charcoal reclaiming system, and it comprises rotary incinerator; Described rotary incinerator is provided with the reaction chamber of body of heater and through described body of heater; Described furnace interior arranges insulated wall, and described body of heater is separated into the high temperature chamber and heating chamber that are connected by it; Described high temperature chamber arranges mixed gas input terminus and some gas heating ends; Described heating chamber arranges discharge flue; Described reaction chamber comprises useless charcoal input section, conversion zone and the output of products section that order is arranged, and wherein, it is outside that described useless charcoal input section and described output of products Duan Jun are positioned at described body of heater, and described conversion zone is arranged in described heating chamber.
Preferably, described conversion zone order arranges and burns dryer section, burns preheating section and regenerating reactivating section.
Preferably, described burning dryer section inputs section with described useless charcoal and is connected.
Preferably, described regenerating reactivating section is connected with described output of products section.
Preferably, gas heating end described in a pair is set.
Preferably, described in a pair, gas heating end is arranged side by side.
Preferably, gas heating end described in described mixed gas input terminus and a pair is arranged side by side.
Preferably, described useless charcoal input section also arranges revolution waste gas outlet end.
Preferably, the condenser be connected with described revolution waste gas outlet end is also comprised.
Preferably, the sewage disposal device be connected with described condenser is also comprised.
Adopt such scheme, the present invention realizes regenerating waste and old gac by revolution burning mode, high temperature chamber and the heating chamber of rotary incinerator are set by insulated wall, reaction chamber has useless charcoal input section and conversion zone and output of products section, and the conversion zone arranging the reaction chamber of rotary incinerator is arranged in heating chamber, high temperature chamber provides combustion gases from its mixed gas input terminus and some gas heating ends, well particle charcoal can be brought back to life regeneration, recycling.
Other scheme of the present invention, also carries out activity recovery and objectionable impurities cracking simultaneously, is harmful to the possibility that the process of fugitive constituent secondary burning produces secondary pollution when avoiding regeneration of activated carbon.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of one embodiment of the present of invention;
Fig. 2 is the schematic diagram of an alternative embodiment of the invention;
Fig. 3 is that the particle charcoal fertile absorber of one embodiment of the present of invention flows to schematic diagram.
Embodiment
For the ease of understanding the present invention, below in conjunction with the drawings and specific embodiments, the present invention will be described in more detail.But the present invention can adopt many different forms to realize, and is not limited to the embodiment described by this specification sheets.It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology of using of this specification sheets and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention in this specification sheets just in order to describe specific embodiment is not for limiting the present invention.Term that this specification sheets uses " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figure 1, one embodiment of the present of invention are, a kind of useless charcoal reclaiming system, and it comprises rotary incinerator; Described rotary incinerator is provided with the reaction chamber 300 of body of heater 200 and through described body of heater; Described furnace interior arranges insulated wall 230, and described body of heater is separated into the high temperature chamber 210 and heating chamber 220 that are connected by it; Described high temperature chamber 210 arranges mixed gas input terminus 213 and some gas heating ends; Described heating chamber 220 arranges discharge flue 221; Described reaction chamber 300 comprises useless charcoal input section 310, conversion zone 320 and the output of products section 330 that order is arranged, wherein, it is outside that described useless charcoal input section 310 and described output of products section 330 are all positioned at described body of heater 200, and described conversion zone 320 is arranged in described heating chamber 220.Such as, described high temperature chamber arranges two gas heating ends, comprises the first gas heating end 211 and the second gas heating end 212.Such as, as shown in Figure 2, described output of products section 330 place is also provided with steam input terminus 340, such as, by steam input terminus input waste heat flash-off steam.Preferably, described rotary incinerator is external-heating revolving incinerator, and such as, described body of heater rotates around described reaction chamber.Preferably, also comprise the sealed disconnected oxygen turning device be connected with described output of products section, for at pending product after rotary incinerator carries out steam pore-creating process, be placed in described sealed disconnected oxygen turning device and be cooled to room temperature, to strengthen useless charcoal regeneration effect.
Such as, the length of described conversion zone is 15 meters.Preferably, described conversion zone order arranges and burns dryer section, burns preheating section and regenerating reactivating section.Wherein, described burning dryer section inputs section with described useless charcoal and is connected.And/or described regenerating reactivating section is connected with described output of products section.Such as, the temperature of burning dryer section is 100 ~ 200 DEG C, and and for example, the temperature of burning preheating section is 200 ~ 250 DEG C; Such as, the temperature of regenerating reactivating section is 800 ~ 959 DEG C, and and for example, regenerating reactivating section temperature is 800 ~ 950 DEG C.
Preferably, gas heating end described in a pair is set.Such as, described in a pair, gas heating end is arranged side by side.Preferably, as shown in Figure 1, gas heating end described in described mixed gas input terminus and a pair is arranged side by side.Add Sweet natural gas or coal gas by gas heating end, combustion heating in high temperature chamber, reach 1000 ~ 1300 DEG C to make the temperature in described high temperature chamber.Preferably, in described high temperature chamber, also temperature control unit being set, for controlling the flux of described mixed gas input terminus and described gas heating end, making the temperature in high temperature chamber be 1000 ~ 1300 DEG C.
Preferably, described useless charcoal input section also arranges revolution waste gas outlet end.Preferably, the condenser be connected with described revolution waste gas outlet end is also comprised.Preferably, the sewage disposal device be connected with described condenser is also comprised.Like this, the flue gas that useless charcoal input section is drawn enters the Burning Room burning disposal under rotary kiln after condensation removal moisture content, can avoid causing secondary pollution to environment.
Preferably, the heat exchanger be connected with described discharge flue is also comprised.Such as, described heat exchanger is air heat exchanger.Preferably, described air heat exchanger also connects described mixed gas input terminus.Preferably, the fast cooling device be connected with described heat exchanger is also comprised.Such as, described fast cooling device is quench tower.Like this, the heat energy recycling of discharging flue can be realized.
Preferably, described useless charcoal input section also connects chapelet.Chapelet and bucket elevator utilize a series of hoppers be evenly fixed on driving component for no reason, the continuous conveyor of vertical lifting material.Such as, described chapelet comprises loop chain type lift; And for example, described chapelet comprises plate link chain type hoist; And for example, described chapelet comprises belt-type lift.Such as, particle charcoal is inserted the reaction chamber of rotary incinerator; Such as, the particle charcoal that pre-treatment obtains is transported to the useless charcoal input section of the reaction chamber of external-heating revolving incinerator, and for example, the particle charcoal that pre-treatment obtains is transported to the useless charcoal input section entry position of the reaction chamber of external-heating revolving incinerator, adopts chapelet to promote and enters useless charcoal input intersegmental part.
Such as, as shown in Figure 3, rotary incinerator is provided with partition wall, high-temperature waste flue gas discharge flue, two for inputting gas heating end and a mixed gas input terminus of coal gas, mixed gas input terminus is for inputting the mixed gas of the flue gas after heating and air; The oven body part that the through revolution of reaction chamber is burned, from the useless charcoal of useless charcoal input section input, when entering conversion zone, temperature is 200 DEG C, and in conversion zone, be warming up to 950 DEG C, the temperature to output of products section is 400 DEG C, exports the product after regeneration.Further, at output of products section place also by steam input terminus input waste heat flash-off steam, such as, carry out waste heat flash distillation by heat exchanger, export steam in conversion zone or output of products section; Also waste gas is discharged in rotary kiln to condenser by revolution waste gas outlet end at useless charcoal input section place, the waste water that condensation produces processes through sewage works, the Waste water utilization waste heat flash distillation obtained exports steam to each steam input terminus, the solid waste outward transport of sewage works; Condenser also connects rotary incinerator, and the waste gas of condenser is input to rotary incinerator and carries out burning disposal, to avoid secondary pollution; Tunnel kiln smoke-gas is also input to condenser and carries out condensation process; Condenser also connects air heat exchanger, and coal gas air is also input in air heat exchanger, and the mixed gas obtaining the flue gas after heating and air is input to rotary incinerator by mixed gas input terminus; Air heat exchanger also connects fast cooling device such as quencher or quench tower etc., carries out off gas treatment by after hot gas chilling, such as, by discharging after two alkali desulfurization.Useless flue gas also can discharge after carrying out off gas treatment after quencher chilling.Like this, realize regenerating waste and old gac by revolution burning disposal mode, be particularly useful for particle charcoal, well particle charcoal can be brought back to life regeneration, recycling.
And for example, described useless charcoal reclaiming system also comprises tunnel furnace; Described tunnel furnace order arranges early gate, tunnel drying section, tunnel preheating section, activating and regenerating section and product cooling section; Described activating and regenerating section arranges some steam input terminuss and some gas heating ends, and described tunnel drying section arranges air inducing end, is formed from described activating and regenerating section to the air-flow of described tunnel drying section cooling passage.Such as, described activating and regenerating section arranges the first steam input terminus and the second steam input terminus, the first gas heating end and the second gas heating end.Such as, described tunnel furnace also arranges the tunnel discharging section connecting described product cooling section, that is, described tunnel furnace order arranges early gate, tunnel drying section, tunnel preheating section, activating and regenerating section, product cooling section and tunnel discharging section.Like this, realize regenerating waste and old gac by tunnel furnace mode, be particularly useful for burgy (i.e. powdery carbon), well burgy can be brought back to life regeneration, recycling.
Wherein, described early gate is used for the entrance at the rear enclosed tunnel furnace of pending product introduction tunnel furnace.For the ease of transporting movement, preferably, be provided with kiln tank car in described tunnel furnace, it has some tactic kiln tanks.Such as, pending product is arranged in the kiln tank of kiln tank car, enters tunnel furnace inside by early gate.Preferably, there is ventilation gap between adjacent described kiln tank.Such as, described ventilation gap is 2 ~ 5 millimeters.Such as, pending product is arranged in kiln tank car, and early gate arranges inductor block, automatically opens early gate, after kiln tank car enters, automatically close early gate during induction kiln tank car approaching.Like this, the heat losses of tunnel furnace can be avoided, effectively close the entrance of tunnel furnace.
Wherein, described tunnel drying section is used for heat drying, remove the excessive moisture in pending product, and the volatilizable organic gas of low temperature, the mixed flue gas of gas and water vapor is drawn from air inducing end, remove the moisture of contained objectionable impurities through condensation segment or condenser cooling, residual gas is sucked into particle charcoal and carries out the Burning Room (i.e. high temperature chamber) of the external-heating revolving incinerator of steam pore-creating process with 1000-1300 DEG C of degree high temperature incineration.Such as, the mixed flue gas of gas and water vapor is drawn out to condenser from air inducing end.Such as, under the effect of air inducing end, the gas of tunnel preheating section and the mixed flue gas of water vapor are introduced in tunnel drying section, the temperature of tunnel drying section is made to form a step from low to high, position temperature near tunnel preheating section is higher, such as, the temperature of tunnel drying section is 40 ~ 300 DEG C; Such as, tunnel drying section arranges the first temperature-controlling component, for controlling the flux of the mixed flue gas of tunnel preheating section, makes the temperature of tunnel drying section be 40 ~ 300 DEG C.Preferably, the length of described tunnel drying section is greater than the length of described tunnel preheating section.Such as, the length of tunnel drying section is 30 meters, preferably, also comprises the condenser be connected with described air inducing end.Preferably, the sewage disposal device be connected with described condenser is also comprised.Preferably, the rotary incinerator be connected with described condenser is also comprised.Preferably, the heat exchanger be connected with described rotary incinerator is also comprised.Preferably, the fast cooling device be connected with described heat exchanger is also comprised.
Wherein, tunnel preheating section is used for thermal pretreatment, and taken out of with gas by vaporization at high temperature organic substance in pending product, the mixed flue gas process of passing through tunnel dryer section of discharge, the mixed flue gas of discharging with tunnel drying section is mixed together, and is drawn from air inducing end.Such as, the length of tunnel preheating section is 15 meters, and for example, tunnel drying section and tunnel preheating section total length are 45 meters, pending product residence time length and back segment high-temperature flue gas flow and temperature is adopted to control, reach desired effects that is dry and preheating, the effect such as reached is dry the moisture in waste active carbon to less than 10%, and by dry heating raw materials, make middle temperature volatilization carbonaceous material thermolysis wherein, non-carbon species and impurity volatilization, remove the adsorbing contaminant in fixed carbon and basic pore texture, generate CO
2, for active reduction is ready.And for example, be also provided with middle gate between described tunnel drying section and described tunnel preheating section, entering tunnel preheating section for preventing tunnel drying section aqueous vapor affects pre-heat effect.Same, under the effect of air inducing end, the gas of activating and regenerating section and the mixed flue gas of water vapor are introduced in tunnel preheating section, the temperature of tunnel preheating section is made to form a step from low to high, position temperature near activating and regenerating is higher, such as, the temperature of tunnel preheating section is 300 ~ 700 DEG C; And for example, the temperature of tunnel preheating section is 350 ~ 650 DEG C; Such as, tunnel preheating section arranges the second temperature-controlling component, for controlling the flux of the mixed flue gas of activating and regenerating section, makes the temperature of tunnel preheating section be 300 ~ 700 DEG C.Preferably, described tunnel preheating section arranges at least one described steam input terminus, for inputting water vapor.Preferably, the described steam input terminus of described tunnel preheating section is arranged near described activating and regenerating section.
Wherein, described activating and regenerating section, for the impurity in pyroreaction removal micropore and resistates, makes activated carbon pore size dredge, expands, develops, the gac of the microlitic structure of reduction or formation hole prosperity again; Preferably, the length of described activating and regenerating section is greater than the length of described tunnel drying section.Preferably, the length of described activating and regenerating section is more than or equal to the length of described tunnel drying section and the length of described tunnel preheating section.And for example, the length of described activating and regenerating section is more than or equal to the length of described tunnel drying section and the length sum of described tunnel preheating section.Such as, the length of activating and regenerating section is 60 meters; And for example, described gas heating end is used for adding coal gas or Sweet natural gas carries out combustion heating.Such as, the temperature of activating and regenerating section is 700 ~ 950 DEG C; 1000 DEG C can be reached, but in order to energy-conservation, usually to 950 DEG C.And for example, the temperature of activating and regenerating section is 650 ~ 950 DEG C; And for example, the temperature of activating and regenerating section is 550 ~ 950 DEG C; Such as, activating and regenerating section arranges the 3rd temperature-controlling component, for controlling the work of described gas heating end, makes activating and regenerating section temperature be 550 ~ 950 DEG C.
Preferably, between described activating and regenerating section and described product cooling section, also late gate is set.Preferably, described late gate is arranged at described product cooling section.Like this, gate is utilized the activating and regenerating section of high temperature to be separated with product cooling section, to reach better cooling performance.
Preferably, described activating and regenerating section arranges some temperature sections, and temperature section described in each has certain predetermined temperature; Such as, described activating and regenerating section has low temperature distribution region, middle high both sides.Preferably, the temperature section with top temperature of described activating and regenerating section is positioned at the middle part of described activating and regenerating section.Described activating and regenerating section order arranges four temperature sections, comprise the first temperature section, second temperature section, 3rd temperature section and the 4th temperature section, first temperature section is near described tunnel preheating section, its preset temp is 650 ~ 750 DEG C, the preset temp of the second temperature section is 750 ~ 950 DEG C, the preset temp of the 3rd temperature section is 950 ~ 750 DEG C, 4th temperature section is near described product cooling section, its preset temp is 750 ~ 550 DEG C, like this, define the temperature distribution region that middle high both sides are low, such as, second temperature section and the 3rd temperature section are respectively arranged with gas heating end, preferably, each described gas heating end is arranged at the second temperature section near the position of the 3rd temperature section and the 3rd temperature section near the position of the second temperature section, thus forms a thermal spike in formation second temperature section and the 3rd temperature section.Preferably, the temperature section with top temperature of described activating and regenerating section is positioned at the middle part of described activating and regenerating section and is partial to described product cooling section.Like this, be conducive to cooling region and the intensification region of Reasonable Regulation And Control tunnel furnace, well burgy can be brought back to life regeneration, recycling.
Such as, useless charcoal enters the tunnel drying section that length is 25 meters after gate, and tunnel drying section arranges two air inducing ends, and such as, air inducing end comprises vacuum fan and suction opening thereof; Tunnel drying section arranges three temperature sections, under the effect of air inducing end, tunnel drying section is entered from activating and regenerating section through tunnel preheating section as heat smoke, and discharge from air inducing end, form cooling region, the preset temp of three temperature sections of tunnel drying section is respectively 40 DEG C, 40 ~ 120 DEG C, 120 ~ 300 DEG C.Length is that the tunnel preheating section of 15 meters adjoins tunnel drying section, and it arranges two temperature sections, and equally under the effect of air inducing end, form cooling region, the preset temp of two temperature sections of tunnel preheating section is respectively 350 DEG C, 350 ~ 650 DEG C; Tunnel preheating section arranges a steam input terminus at its second temperature section near activating and regenerating section.Length is that the activating and regenerating section of 40 meters adjoins tunnel preheating section, it arranges four temperature sections, preset temp is respectively 650 ~ 750 DEG C, 750 ~ 950 DEG C, 950 ~ 750 DEG C, 750 ~ 550 DEG C, at its first temperature section near tunnel preheating section, a steam input terminus is set, at its second temperature section and the 3rd temperature section, a gas heating end is set respectively, such as gas heating end is heated by gas end, coal gas is adopted to heat, its the 4th temperature section adjoins product cooling section and the tunnel discharging section that total length is 40 meters, such as, the length of product cooling section is 25 meters, the length of tunnel discharging section is 15 meters, the position of the contiguous activating and regenerating section of product cooling section also arranges a steam input terminus.Further, air inducing end also connects condenser, and the waste water that condensation produces processes through sewage works, and the Waste water utilization waste heat flash distillation obtained exports steam to each steam input terminus, the solid waste outward transport of sewage works; Condenser also connects rotary incinerator, and the waste gas of condenser is input to rotary incinerator and carries out burning disposal, to avoid secondary pollution; Rotary incinerator also connects heat exchanger, carries out waste heat flash distillation by heat exchanger, with energy supply realize sewage works process obtain middle water waste heat flash distillation export steam, integrated reciprocating utilizing status is higher.Heat exchanger also connects fast cooling device, carries out off gas treatment by after hot gas chilling, such as, by discharging after two alkali desulfurization.Such as, heat exchanger is air heat exchanger.
And for example, described useless charcoal reclaiming system also comprises the pre-processing device connecting described rotary incinerator, described tunnel furnace respectively, for pending useless charcoal is carried out pre-treatment, burgy is inserted tunnel furnace, and particle charcoal is inserted rotary incinerator; Described pre-processing device arranges dewatering unit and drying unit.And for example, described pre-processing device is provided with pending district, mechanical arm, mechanical shear, transmission district, throws aside district and press filtration district; Preferably, mechanical arm arranges vibrational structure and weight induction unit.Preferably, transmit district and magnetic structure, first sieve structure, quiescent operation platform, second sieve structure excessively is excessively set; And for example, dewatering unit is provided with plate and frame(type)filter press.Preferably, press filtration district or drying unit also arrange moisture detection apparatus, for detecting the moisture of pending useless charcoal.
And for example, a kind of useless charcoal reclaiming method, be applied to useless charcoal reclaiming system described in above-mentioned any embodiment, it comprises the following steps: carry out pre-treatment to useless charcoal and obtain burgy, particle charcoal, the gas of generation carries out burning disposal; Burgy is inserted after tunnel furnace carries out manipulation of regeneration and obtain bringing back to life material; Particle charcoal is inserted rotary incinerator carry out steam pore-creating process obtain bring back to life material.Such as, after obtaining bringing back to life material after manipulation of regeneration, go back naturally cooling, such as, naturally cooling in extraneous air cooling environment.Such as, steam pore-creating process also seals cooling after obtaining bringing back to life material, such as, and sealing cooling in revolution environment; And for example, steam pore-creating process is also cooled to room temperature after obtaining bringing back to life material in sealed disconnected oxygen turning device.
And for example, described pre-treatment comprises dehydrating step, is removed to the moisture content of useless charcoal lower than 40%.And for example, before described manipulation of regeneration or in described manipulation of regeneration, also step is comprised: dry the moisture content in burgy to less than 10%; Same, before described steam pore-creating process or in described steam pore-creating process, also comprise step: dry the moisture content in particle charcoal to less than 10%; And for example, described pre-treatment comprises baking step: dry the moisture content in waste active carbon to less than 10%.Like this, can supply raw materials for subsequent activation, ready, and deviate from the objectionable impurities of part decomposed at low temperature, be such as disposed to incinerator in gaseous form.Preferably, the gas produced in baking step, is disposed to described rotary incinerator.
The carbonization decomposition that described useless charcoal reclaiming method relates to and priming reaction principle are:
Wherein, described manipulation of regeneration is included in some temperature sections and reacts, and temperature section described in each has certain predetermined temperature; Same, described steam pore-creating process is included in some temperature sections and reacts, and temperature section described in each has certain predetermined temperature.Such as, the temperature of each described temperature section is between 300 to 1000 degrees Celsius.Such as, described manipulation of regeneration and/or described steam pore-creating process, comprise 300 ~ 700 DEG C of temperature sections and 700 ~ 900 DEG C of temperature sections, in 300 ~ 700 DEG C of temperature sections, by dry heating raw materials, make middle temperature volatilization carbonaceous material thermolysis wherein, non-carbon species and impurity volatilization, remove the adsorbing contaminant in fixed carbon and basic pore texture, generate CO2, for active reduction is ready; In 700 ~ 900 DEG C of temperature sections, activated media CO2 and water vapor are passed through the gac after impurity elimination with certain flow velocity, corrode activated carbon surface, through pyroreaction, remove the impurity in micropore and resistates further, activated carbon pore size is dredged, expand, develop, the gac of the microlitic structure of reduction or formation hole prosperity again, is called for short and brings back to life or regeneration, make waste active carbon activity recovery adsorptive value.
Preferably, the gas that pre-treatment produces carries out burning disposal at rotary incinerator.Such as, the obnoxious flavour that pre-treatment produces carries out burning disposal at rotary incinerator.Preferably, discharge after the waste-gas cleaning that burning disposal produces.Such as, the waste gas that burning disposal produces discharges after processing water tank purification.And for example, the gas with peculiar smell such as stenches that pre-treatment produces, be input in rotary incinerator, through over-quenching equipment after burning disposal, such as quench tower or quench gas purifying station etc., the waste water obtained is discharged after sewage disposal, such as, after sewage works process, become harmless water, is discharged in physical environment; The waste gas obtained is discharged after off gas treatment, such as after off gas treatment qualified discharge in physical environment.Like this, can guarantee that related process of the present invention and product are in environmentally friendly, be specially adapted to the overall background demand that city reduces haze.
Common, waste active carbon is waste dangerous chemical according to national regulation, and it stores and transport should perform in strict accordance with " Hazardous wastes storage Environmental capacity standard ".Such as, all adopt plastic cement airtight packed when waste active carbon enters factory, transport into factory by special-purpose vehicle, be discharged in closed standard raw materials storehouse by packaged type conveying belt.Such as, described pretreated raw material adopts the airtight packed waste active carbon of plastic cement.Such as, waste active carbon carries out artificial screening to waste active carbon in the raw materials pretreatment functional zone of raw material storage after manually opening bag, removes the impurity of the inside as iron filings, stone, plastics etc.Operator, according to hazardous chemical processing specification regulation, are furnished with special clothing and anti-poison respirator, isolate with outside atmosphere, ensure health of human body.Being packed into kiln tank car after powdery carbon impurity elimination, to deliver to tunnel furnace entrance for subsequent use, for subsequent use in the feed bin that particle charcoal loads filler car.Preferably, described pre-treatment comprises removal impurity.And for example, described pre-treatment comprises step: artificial screening after sealing off, to remove outer packaging in the airtight packed waste active carbon of plastic cement and visible foreign etc.And for example, described pre-treatment comprises step: mechanical grading after sealing off, described mechanical grading comprises magnetic and sieves.Preferably, described pre-treatment also comprises filter-press dehydration step: adopt press filtration mode by the moisture removal of useless charcoal to lower than 40%; Such as, press filtration mode is adopted by the moisture removal of useless charcoal to 35% ~ 38%.And for example, press filtration mode is adopted by the moisture removal of useless charcoal to lower than 30%.Preferably, discharge after the waste water that described filter-press dehydration step obtains carries out sewage disposal.Such as, before removal impurity, described filter-press dehydration step is performed; Such as, adopt two plate to carry out filter-press dehydration, the above is pressing plate, and here is filter plate.And for example, adopt sheet frame to carry out filter-press dehydration, the above is pressing plate, and here is filter frame.
Preferably, described pre-treatment comprises the following steps: S101, plastic cement airtight packed waste active carbon will be adopted to be positioned over pending district; S102, mechanical arm automatically by the waste active carbon of sackholder bag taking dress, are transferred to and transmit district from pending district; S103, mechanical shear carry out automatic shearing bag to by the waste active carbon of gripping; S104, mechanical arm vibrate rear steering and throw aside district throw aside useless bag in throwing aside in district above transmission district, continue next packed waste active carbon of gripping, such as, mechanical arm vibrates certain time of vibration rear steering and throws aside district throw aside useless bag in throwing aside in district above transmission district, and for example, described certain time of vibration is 3 ~ 10 seconds, and preferably, according to residuals weight induction, mechanical arm determines that waste active carbon has dropped after vibration above transmission district, turns to and throws aside district and throw aside useless bag in throwing aside in district; S105, enter magnetic section and carry out magnetic absorption to remove iron filings wherein transmitting first transmission in district, then transmission enters first section of sieving and carries out burgy and sieve, transmission enters quiescent operation platform section and carries out hand picking to remove stone, plastics etc. wherein again, transmission enters second section of sieving and carries out burgy further and sieve again, and discard the impurity such as iron filings, stone, plastics, be then pushed to press filtration district; Such as, first section of sieving carries out burgy when sieving, and adopts vibrated sieve method to carry out burgy and sieves, and preferably, adopts the sieve method that resonated to realize.And for example, quiescent operation platform section comprises worktable and insulating glass, insulating glass is provided with hole and turns edge, the opening turned edge for fixedly entangling rubber gloves, rubber gloves wears hole, for entering to select removal stone wherein, plastics etc. above worktable by manually stretching into both hands through hole, preferably, quiescent operation platform section arranges mechanical manipulator, carries out hand picking adopt manual operation mechanical manipulator to realize in quiescent operation platform section; S106, in press filtration district by press filtration mode by the moisture removal of useless charcoal to lower than 40%; Such as, adopt flame filter press in press filtration mode by the moisture removal of useless charcoal to lower than 40%; Such as, after S105, the waste active carbon after removing impurity is carried out moisture measurement, higher than 40% time, in press filtration district by press filtration mode by the moisture removal of useless charcoal to lower than 40%.Such as, in waste active carbon raw material storage, by plate and frame(type)filter press, by the moisture removal of the waste active carbon of water content more than 60% to less than 40%.The moisture taken off is delivered to sewage works process to rear discharge up to standard by closed conduit, and the waste active carbon after dehydration is sent between coal charger.S108, the burgy obtained is arranged to prepare to insert tunnel furnace, remaining particle charcoal is arranged prepare to insert rotary incinerator.Such as, tunnel furnace and rotary incinerator is inserted respectively when running up to some amount.And for example, between S106 and S108, also comprise step: S107, oven drying at low temperature; Such as, below 100 or 90 degrees Celsius, the moisture in waste active carbon is dried to less than 10%.
Such as, burgy (i.e. powdery carbon) is inserted tunnel furnace carry out manipulation of regeneration obtain bring back to life material, comprise the following steps:
S201, be packed into by burgy in the kiln tank of kiln tank car, kiln tank arranges in order on kiln car, and each kiln tank is high 1 meter, has 2 ~ 5 millimeters of gaps in adjacent kiln tank, so that warm air and high-temperature gas are walked.
S202, kiln tank car enters tunnel furnace, at back segment 100 ~ 300 DEG C of warm airs heat drying gradually that tunnel drying section attracts through induced draft fan, such as at back segment 100 ~ 300 DEG C of warm airs heat drying gradually that the tunnel drying section of 30 meters attracts through induced draft fan, remove excessive moisture, and the volatilizable organic gas of low temperature, the mixed flue gas of gas and water vapor removes the moisture of contained objectionable impurities through condensation segment or condenser cooling, residual gas is sucked into particle charcoal and carries out the Burning Room (i.e. high temperature chamber) of the external-heating revolving incinerator of steam pore-creating process with 1000 ~ 1300 DEG C of degree high temperature incinerations.Such as, the mixed flue gas of gas and water vapor is drawn out to condenser from air inducing end.
S203, dried burgy continue to proceed to the tunnel preheating section that silicon carbide is 300 ~ 700 DEG C with kiln car, such as dried burgy is the preheating section of 300-700 DEG C with the silicon carbide that kiln car continues to proceed to 15 meters, middle vaporization at high temperature organic substance is taken out of with gas, the mixed flue gas process of passing through tunnel dryer section of discharging, the mixed flue gas of discharging with tunnel drying section is mixed together, and then enters the Burning Room high temperature incineration process that particle charcoal carries out the external-heating revolving incinerator of steam pore-creating process.Such as, tunnel drying section and tunnel preheating section total length are 45 meters, burgy residence time length and back segment high-temperature flue gas flow and temperature is adopted to control, reach desired effects that is dry and preheating, the effect such as reached is above-mentioned dries the moisture in waste active carbon to less than 10%, and by dry heating raw materials, make middle temperature volatilization carbonaceous material thermolysis wherein, non-carbon species and impurity volatilization, remove the adsorbing contaminant in fixed carbon and basic pore texture, generate CO2, for active reduction is ready.Preferably, have middle gate between tunnel drying section and tunnel preheating section, preventing tunnel drying section aqueous vapor from entering tunnel preheating section affects pre-heat effect.
After S204, burgy process of passing through tunnel preheating section, activating and regenerating section (i.e. the section of resurrection) is moved into kiln car, such as, with the activating and regenerating section moving into 60 meters of kiln car, this section is according to the source of material and composition, the useless charcoal residence time and kiln car rate of advance are controlled, to complete the production quality control after final regeneration.The temperature of activating and regenerating section is 700 ~ 950 DEG C, can reach 1000 DEG C, but in order to energy-conservation, usually to 950 DEG C.Activating and regenerating section is furnished with Sweet natural gas nozzle, for energy-conservation, 30 meters of sections wherein are also furnished with vapor-nozzle, the afterheat steam that more than after the rotary incinerator regenerate particle charcoal, thermogenetic steam and producer gas generator coal gas produce sprays into the pore-creating again of activating and regenerating section, with steam, the surplus matter organic substance inside charcoal hole is replaced out simultaneously, complete the effect of activity recovery.
S205, complete resurrection after burgy with kiln car enter into product cooling section cooling.Such as, the burgy after resurrection enters into after tunnel furnace 40 meters product cooling section cooling with kiln car is completed.Activating and regenerating section and product cooling section are equipped with late gate, late gate is utilized the activating and regenerating section of high temperature to be separated with product cooling section, to reach cooling performance, two row's induced exhausts are had before the late gate of simultaneously activating and regenerating section, the high-temperature flue gas at activating and regenerating section rear portion is introduced the tunnel drying section of leading portion, for tunnel drying section provides dry heat energy.Wherein, cooling adopts naturally cooling, the leading portion of product cooling section adds 100 ~ 150 DEG C of steam coolings, the effect supplementing activation can also be played, the back segment of product cooling section utilizes the distance controlling of 40 meters to bring back to life the residence time of rear product, such as, the leading portion of product cooling section utilizes water vapor to lower the temperature, and the posterior segment of product cooling section utilizes natural air greenhouse cooling.And for example, after kiln car rolls tunnel furnace away from, also retain the outside air naturally cooling section of 15 meters, until travel to discharge zone.In the kiln tank of kiln tank car, finally obtain the resurrection material after bringing back to life.
Such as, particle charcoal is inserted rotary incinerator carry out steam pore-creating process obtain bring back to life material, comprise the following steps:
S301, particle charcoal is inserted the reaction chamber of rotary incinerator; Such as, the particle charcoal that pre-treatment obtains is transported to the useless charcoal input section of the reaction chamber of external-heating revolving incinerator, and for example, the particle charcoal that pre-treatment obtains is transported to the useless charcoal input section entry position of the reaction chamber of external-heating revolving incinerator, adopts chapelet to promote and enters useless charcoal input intersegmental part.Such as, rotary incinerator is designed to have reaction chamber (i.e. rotary kiln) structure, be external-heating rotary kiln, particle charcoal between useless charcoal coal charger is transported to external-heating rotary kiln opening for feed (i.e. useless charcoal input section) through filler car, enters the conversion zone of rotary kiln through bucket elevator.Such as, the reaction segment length of rotary kiln 15 meters, changes to kiln end temperature from kiln hood according to material, is divided into and burns dryer section, burning preheating section and regenerating reactivating section.Burn dryer section consistent with the manipulation of regeneration of burning preheating section effect and burgy, the flue gas that useless charcoal input section (burner) is drawn enters the Burning Room burning disposal under rotary kiln after condensation removal moisture.
S302, particle charcoal are after the burning preheating section in rotary kiln, and the rotation with rotary kiln enters into regenerating reactivating section, and regenerating reactivating section temperature is 800 ~ 959 DEG C, and and for example, regenerating reactivating section temperature is 800 ~ 950 DEG C; Output of products section is also provided with steam input terminus, and such as stove tail is furnished with vapour pipe and stretches in stove, carries out steam pore-creating, complete resurrection to the particle charcoal material entering into this section.Such as, particle charcoal material, after regenerating reactivating section, enters by discharge zone the sealed disconnected oxygen turning device cooling that output of products section (i.e. stove tail) installs, then enters aftertreatment packing shop.Finally obtain the resurrection material after bringing back to life.
Like this, by the feature utilizing gac own physical to adsorb, by the waste active carbon (i.e. useless charcoal) of returning, by Technologies such as dehydration, pre-heating drying, high-temperature activations, the organism adsorbed or objectionable impurities change into gas, send incineration plants to burn after process, the tail gas clean-up rear discharge up to standard of discharging, make waste active carbon activity recovery adsorptive value in the process, become new reconstituted product, reach the dual purpose reclaimed with recycling.
Further, embodiments of the invention also comprise, each technical characteristic of the various embodiments described above, the useless charcoal reclaiming system be mutually combined to form.
It should be noted that, above-mentioned each technical characteristic continues combination mutually, is formed not in above-named various embodiment, is all considered as the scope that specification sheets of the present invention is recorded; Further, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (10)
1. a useless charcoal reclaiming system, is characterized in that, comprise rotary incinerator;
Described rotary incinerator is provided with the reaction chamber of body of heater and through described body of heater;
Described furnace interior arranges insulated wall, and described body of heater is separated into the high temperature chamber and heating chamber that are connected by it;
Described high temperature chamber arranges mixed gas input terminus and some gas heating ends;
Described heating chamber arranges discharge flue;
Described reaction chamber comprises useless charcoal input section, conversion zone and the output of products section that order is arranged, and wherein, it is outside that described useless charcoal input section and described output of products Duan Jun are positioned at described body of heater, and described conversion zone is arranged in described heating chamber.
2. useless charcoal reclaiming system according to claim 1, it is characterized in that, described conversion zone order arranges and burns dryer section, burns preheating section and regenerating reactivating section.
3. useless charcoal reclaiming system according to claim 2, it is characterized in that, described burning dryer section inputs section with described useless charcoal and is connected.
4. useless charcoal reclaiming system according to claim 3, it is characterized in that, described regenerating reactivating section is connected with described output of products section.
5. useless charcoal reclaiming system according to claim 1, is characterized in that, arrange gas heating end described in a pair.
6. useless charcoal reclaiming system according to claim 5, it is characterized in that, described in a pair, gas heating end is arranged side by side.
7. useless charcoal reclaiming system according to claim 6, is characterized in that, described in described mixed gas input terminus and a pair, gas heating end is arranged side by side.
8. useless charcoal reclaiming system according to claim 1, it is characterized in that, described useless charcoal input section also arranges revolution waste gas outlet end.
9. useless charcoal reclaiming system according to claim 8, is characterized in that, also comprise the condenser be connected with described revolution waste gas outlet end.
10. useless charcoal reclaiming system according to claim 9, is characterized in that, also comprise the sewage disposal device be connected with described condenser.
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| CN201610027710.2A CN105417539A (en) | 2016-01-17 | 2016-01-17 | Waste carbon recycling and regenerating system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109305681A (en) * | 2018-11-30 | 2019-02-05 | 南通滨海活性炭有限公司 | The technique of dangerous waste active carbon and biological material manufacture active carbon |
| CN111689497A (en) * | 2020-07-17 | 2020-09-22 | 宁夏宜鑫环保科技有限公司 | Dangerous waste carbon energy-saving activation regeneration system capable of inhibiting generation of dioxin |
| CN112138640A (en) * | 2020-09-25 | 2020-12-29 | 衢州市蓝天环保节能设备厂 | Rotary regeneration furnace, activated carbon particle regeneration equipment and activated carbon particle regeneration method |
| CN116251576A (en) * | 2023-04-10 | 2023-06-13 | 宝武水务科技有限公司 | Feeding preheating and drying device, system and method of activated carbon regenerating furnace |
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| CN103074597A (en) * | 2012-12-26 | 2013-05-01 | 光达光电设备科技（嘉兴）有限公司 | Reaction chamber |
| CN104973598A (en) * | 2015-06-26 | 2015-10-14 | 河北德谦生物科技有限公司 | Active carbon production apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103074597A (en) * | 2012-12-26 | 2013-05-01 | 光达光电设备科技（嘉兴）有限公司 | Reaction chamber |
| CN104973598A (en) * | 2015-06-26 | 2015-10-14 | 河北德谦生物科技有限公司 | Active carbon production apparatus |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109305681A (en) * | 2018-11-30 | 2019-02-05 | 南通滨海活性炭有限公司 | The technique of dangerous waste active carbon and biological material manufacture active carbon |
| CN109305681B (en) * | 2018-11-30 | 2022-02-08 | 南通滨海活性炭有限公司 | Process for manufacturing activated carbon by using hazardous waste activated carbon and biomass material |
| CN111689497A (en) * | 2020-07-17 | 2020-09-22 | 宁夏宜鑫环保科技有限公司 | Dangerous waste carbon energy-saving activation regeneration system capable of inhibiting generation of dioxin |
| CN112138640A (en) * | 2020-09-25 | 2020-12-29 | 衢州市蓝天环保节能设备厂 | Rotary regeneration furnace, activated carbon particle regeneration equipment and activated carbon particle regeneration method |
| CN116251576A (en) * | 2023-04-10 | 2023-06-13 | 宝武水务科技有限公司 | Feeding preheating and drying device, system and method of activated carbon regenerating furnace |
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