CN206278915U - The system that a kind of heat recovery of junked tire prepares activated carbon - Google Patents

The system that a kind of heat recovery of junked tire prepares activated carbon Download PDF

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Publication number
CN206278915U
CN206278915U CN201621344416.6U CN201621344416U CN206278915U CN 206278915 U CN206278915 U CN 206278915U CN 201621344416 U CN201621344416 U CN 201621344416U CN 206278915 U CN206278915 U CN 206278915U
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China
Prior art keywords
pyrolysis
junked tire
oven
outlet
heat
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CN201621344416.6U
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Inventor
吴小飞
巴玉鑫
肖磊
王惠惠
房凯
牛明杰
宋敏洁
吴道洪
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Shenwu Technology Group Corp Co Ltd
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Beijing Shenwu Environmental and Energy Technology Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/141Feedstock
    • Y02P20/143Feedstock the feedstock being recycled material, e.g. plastics

Abstract

The utility model is related to the system that a kind of heat recovery of junked tire prepares activated carbon.The system includes junked tire pyrolysis oven, Magnet Separater, multi-stage oven, carbon dioxide separator, heat-storage tubular heating furnace, and reative cell and burner are provided with junked tire pyrolysis oven;Magnet Separater is provided with pyrolysis solid inlet and pyrolytic carbon outlet, and pyrolysis solid inlet is connected with the pyrolysis solid outlet of the junked tire pyrolysis oven;Carbon dioxide separator is connected with the exhanst gas outlet of the burner in junked tire pyrolysis oven, carbon dioxide outlet after the entrance of the heat-storage tubular heating furnace is separated with the carbon dioxide separator is connected, and the first entrance of the multi-stage oven is connected with the pyrolytic carbon outlet of the Magnet Separater.The technical solution of the utility model causes that the treatment of junked tire realizes the production of energy-saving, pollution emission reduction, resource regeneration and high added value.

Description

The system that a kind of heat recovery of junked tire prepares activated carbon
Technical field
The utility model relates generally to a kind for the treatment of technology of junked tire, and in particular to a kind of energy of junked tire is followed Ring is using the system for preparing activated carbon.
Background technology
With the fast development of Domestic Automotive Industry, junked tire is also increased with double-digit speed every year, and China is waste and old The yield of tire has occupied the second in the world, is only second to the U.S..Increasing junked tire forms " black pollution ", threatens Daily life.
Junked tire belongs to insoluble or indissoluble macromolecular material, there is elasticity higher and toughness, -50 DEG C~ Will not be changed in the range of 150 DEG C, junked tire is difficult to biodegradation, long-term outdoor storage does not only take up a large amount of soils, and And toxic and harmful, severe contamination environment can be produced.At present, junked tire comprehensive Utilization Ways mainly include renovation, regeneration Glue, rubber powder, heat energy utilization and pyrolysis etc., wherein pyrolysismethod are caused with its resource recovery higher and relatively low secondary pollution Extensive concern.If being raw material by junked tire, through that can produce fuel-displaced, gas and solid carbon after carbonization, part substitute coal, oil, The resources such as natural gas.But, in order to ensure economic benefit, it is still desirable to develop to the suitable technique road of junked tire pyrolysis phase Line.
According to national recycling economy, the industrial policy of sustainable development, junked tire is processed will be to realize energy-saving, dirt Dye emission reduction, resource regeneration and high added value are produced as target.
But pyrolysis of the prior art to junked tire, product is reclaimed to be pyrolyzed based on oil gas, added value is not high, and whole Individual pyrolysis system energy consumption is higher, and the solid product after pyrolysis may turn into pollution source.
Therefore, the deficiency for existing for above-mentioned technology, in order to efficiently realize the pyrolysis to junked tire, and in time Recycling is carried out to the solid portion after pyrolysis, the energy such as flue gas that the heat and burning that cyclic utilization system is produced are produced Source, needs to be proposed a kind for the treatment of technology of new junked tire.
Utility model content
The purpose of this utility model is to provide the system that a kind of heat recovery of junked tire prepares activated carbon, with The pyrolysis to junked tire can be efficiently realized, and carries out recycling to the solid portion after pyrolysis in time, circulation profit The flue gas equal energy source that the heat and burning produced with system are produced.
The utility model provides the system that a kind of heat recovery of junked tire prepares activated carbon, and the system includes Junked tire pyrolysis oven, Magnet Separater, multi-stage oven, carbon dioxide separator, heat-storage tubular heating furnace, wherein, it is described useless Reative cell and burner are provided with old tire pyrolysis oven;Charging aperture and pyrolysis oil gas are provided with the top of the junked tire pyrolysis oven Outlet;The bottom of the junked tire pyrolysis oven is provided with pyrolysis solid outlet;The Magnet Separater is provided with pyrolysis solid inlet Exported with pyrolytic carbon, the pyrolysis solid inlet is connected with the pyrolysis solid outlet of the junked tire pyrolysis oven;The dioxy Change carbon separation unit to be connected with the exhanst gas outlet of the burner in the junked tire pyrolysis oven, for the titanium dioxide in its flue gas Carbon is separated;The entrance of the heat-storage tubular heating furnace separated with the carbon dioxide separator after carbon dioxide outlet It is connected, for being heated to carbon dioxide;The multi-stage oven is provided with first entrance, second entrance, exhanst gas outlet and activated carbon Outlet, the pyrolytic carbon outlet of the first entrance and the Magnet Separater is connected, the second entrance and the heat accumulating type pipe The carbon dioxide outlet of formula heating furnace is connected.
Above-mentioned system, the side wall of the junked tire pyrolysis oven is provided with multiple gas outlets.
Above-mentioned system, the burner is located at the top of reative cell in the junked tire pyrolysis oven.
Above-mentioned system, the multiple gas outlet in the vertical direction is located at the top of the burner.
Above-mentioned system, the second entrance connection vapor conveyance conduit and/or carbon dioxide of the multi-stage oven is defeated Send pipeline.
Above-mentioned system, the system also includes cooling and clean unit, and the cooling and clean unit are provided with pyrolysis oil Gas entrance, pyrolysis gas outlet and pyrolysis oil export, the pyrolysis oil gas of the pyrolysis oil gas entrance and the junked tire pyrolysis oven Outlet is connected.
Above-mentioned system, the system also include pyrolysis oil tank, the entrance of the pyrolysis oil tank with it is described cooling and The pyrolysis oil export of clean unit is connected.
Above-mentioned system, the entrance of the heat-storage tubular heating furnace respectively with the titanium dioxide of the carbon dioxide separator Carbon is exported and the outlet of the pyrolysis oil tank is connected, and the partial thermal decomposition oil for producing pyrolysis is carbon dioxide as thermal source Heating.
Sorting substances after pyrolysis are gone out activable material by the utility model using Magnet Separater to be carried out further Recycling with produce higher value by-product;The utility model utilizes carbon dioxide separator by junked tire pyrolysis oven The flue gas of inner burner is separated;It is used as activator after carbon dioxide after separation is heated, takes full advantage of the energy, Recycling for the energy is accomplished.
In a word, the utility model solves existing pyrolysis effect is poor, high energy consumption, serious heat loss, prepares activated carbon product The problem of matter difference, while the stability of operation is able to ensure that when being prepared activated carbon using the system for preparing activated carbon, it is whole Individual system prevents the generation of poisonous and harmful secondary pollution.The utility model causes that the material after pyrolysis has carried out resource profit With, cause heat that pyrolytic process produces, flue gas equal energy source recycled.The technical solution of the utility model causes waste and old The treatment of tire realizes the production of energy-saving, pollution emission reduction, resource regeneration and high added value.
Brief description of the drawings
Fig. 1 prepares the structural representation of activated carbon for the junked tire pyrolysis of the utility model embodiment;
Fig. 2 prepares the schematic flow sheet of activated carbon for the junked tire pyrolysis of the utility model embodiment;
Fig. 3 prepares the flowage structure schematic diagram of activated carbon for the junked tire pyrolysis of the utility model embodiment.
Specific embodiment
Below in conjunction with drawings and Examples, specific embodiment of the present utility model is described in more details, with Just scheme of the present utility model and the advantage of its various aspects be better understood when.However, specific implementations described below Mode and embodiment are only descriptive purposes, rather than to limitation of the present utility model.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " wide Degree ", " thickness ", " on ", " under ", " before ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " bottom ", " interior ", " outward ", " Clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " and etc. instruction orientation or position relationship be based on side shown in the drawings Position or position relationship, are for only for ease of description the utility model and simplify description, rather than the device for indicating or implying meaning Or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to of the present utility model Limitation.
Additionally, term " first ", " second " be only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", " second " and feature can express or Implicitly include at least one this feature.In description of the present utility model, " multiple " it is meant that at least two, such as two It is individual, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " be connected ", " connection ", " solid It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally;Can be Mechanically connect, or electrically connect;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two The connection of element internal or two interaction relationships of element, unless otherwise clearly restriction.For the common skill of this area For art personnel, concrete meaning of the above-mentioned term in the utility model can be as the case may be understood.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is in second feature " on " or " under " Can be the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, first is special Levy in second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only Represent that fisrt feature level height is higher than second feature.Fisrt feature is in second feature " under ", " lower section " and " below " can be with Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In one side of the present utility model, the utility model proposes a kind of system for preparing activated carbon.The system Including junked tire pyrolysis oven, Magnet Separater, multi-stage oven, carbon dioxide separator, heat-storage tubular heating furnace, wherein, institute State and reative cell and burner are provided with junked tire pyrolysis oven;Charging aperture and pyrolysis are provided with the top of the junked tire pyrolysis oven Oil gas vent;The bottom of the junked tire pyrolysis oven is provided with pyrolysis solid outlet;The Magnet Separater is provided with pyrolysis solid Entrance and pyrolytic carbon are exported, and the pyrolysis solid inlet is connected with the pyrolysis solid outlet of the junked tire pyrolysis oven;It is described Carbon dioxide separator is connected with the exhanst gas outlet of the burner in the junked tire pyrolysis oven, for two in its flue gas Carbonoxide is separated;The entrance of the heat-storage tubular heating furnace separated with the carbon dioxide separator after carbon dioxide Outlet is connected, for being heated to carbon dioxide;The multi-stage oven is provided with first entrance, second entrance, exhanst gas outlet and work Property charcoal outlet, the pyrolytic carbon outlet of the first entrance and the Magnet Separater is connected, the second entrance and the accumulation of heat The carbon dioxide outlet of formula tubular heater is connected.
Also known as multiple hearth furnace or mechanical kiln, feature is that residence time of the waste in stove is long to multi-stage oven, is contained in gas after activation Dust quantity is few, and can volatilize more moisture, it is possible to use pluralities of fuel, efficiency of combustion is higher, it is possible to use any one layer of fuel Burner is improving in-furnace temperature.The utility model utilizes this advantage, and activation process is carried out to pyrolytic carbon using multi-stage oven.Cause For soak time has very big influence to the pore structure of activated carbon, the burn tinctuer with the extension activated carbon of soak time increases, Specific surface area and iodine sorption value first increase and reduce afterwards, and soak time falls just moisture and devolatilization in raw material, Realize the reaming of material and increase hole, meet the activation of the material after waste material circuit board pyrolytic and require.
It has been observed that being carried out with existing multi-stage oven by using the internal junked tire pyrolysis oven for setting heat accumulation type radiant tube Combination prepares activated carbon, and without transforming existing multi-stage oven, you can by the isolated solid carbon of Magnet Separater Delivering to multi-stage oven carries out activation generation activated carbon, because junked tire pyrolysis oven uses heat accumulation type radiant tube to be provided for pyrolytic process Thermal source, can realize the accurate temperature controlling to pyrolytic process by adjusting the flow of the combustion gas for being passed through heat accumulation type radiant tube, and The heat accumulation type radiant tube can realize quick commutation and heat storage type combustion by two ends, it is ensured that in junked tire pyrolysis oven The uniformity in temperature field, such that it is able to significantly improve junked tire pyrolysis efficiency, while more traditional use gas heat carrier or Solid thermal carriers are compared as the pyrolytic reaction device of pyrolysis thermal source, and junked tire pyrolysis oven of the present utility model need not be set Preheating unit and carrier separative element, can greatly simplify pyrolysis and priming reaction technological process, so as to significantly reduce device The pyrolysis gas mixture of fault rate and gained cleaning, the pyrolysis gas for obtaining are separated with clean unit by cooling can be used as pyrolysis oven The heat of the heat and heat-storage tubular heating stove heat needs for needing is pyrolyzed, by the isolated activation of carbon dioxide separator Required gasifying agent, without it is outer supply a large amount of thermals source and activator, and then can solve existing junked tire prepare activated carbon fortune The costly complex process of row, and existing pyrolysis oven and multi-stage oven coupling fluctuation of service caused by high problem, while adopting The easy coking of pyrolysis oven, easy blockage problem can be solved with the junked tire pyrolysis oven, is then fired by using heat accumulation type radiant tube Burner recycles pyrolysis gas, equipment investment cost can be reduced compared with the prior art, in addition, being pyrolyzed by by junked tire Direct heat delivers to multi-stage oven and carbon dioxide reaction after the pyrolytic carbon produced in stove separates metal, can not only ensure that multi-stage oven is straight Connect and prepare activated carbon, and capacity usage ratio can be significantly improved, and be conducive to the junked tire to prepare activated carbon system Stability.
Activated carbon system is prepared below with reference to Fig. 1, Fig. 2 and Fig. 3 to the utilization junked tire of the utility model embodiment to enter Row is described in detail.According to embodiment of the present utility model, this prepares activated carbon system using junked tire includes:Pyrolysis oven 100, Multi-stage oven 200 and Magnet Separater 300.
According to embodiment of the present utility model, pyrolysis oven 100 has feeding conveying system 101, pyrolysis gas outlet 102, heat Solution solid product outlet 104, and pyrolysis oven 100 is internally provided with multigroup burner 103, and be suitable to for junked tire to carry out heat Solution reaction, such that it is able to obtain being pyrolyzed solid product and pyrolysis gas.It has been observed that by using internal setting heat accumulation type radiant tube Junked tire pyrolysis oven carries out combination and prepares activated carbon with existing multi-stage oven, and without transforming existing multi-stage oven, The hot pyrolytic carbon produced in junked tire pyrolysis oven can be delivered into multi-stage oven carries out activation generation activated carbon, due to waste and old wheel Use heat accumulation type radiant tube to provide thermal source for pyrolytic process in tire pyrolysis oven, the combustion of heat accumulation type radiant tube can be passed through by adjustment The flow of gas realizes the accurate temperature controlling to pyrolytic process, and the heat accumulation type radiant tube can realize fast quick change by two ends To and heat storage type combustion, it is ensured that the uniformity in temperature field in junked tire pyrolysis oven, such that it is able to significantly improve waste and old wheel Tire is pyrolyzed efficiency, while more traditional uses gas heat carrier or solid thermal carriers as the pyrolytic reaction device phase of pyrolysis thermal source Than junked tire pyrolysis oven of the present utility model need not set preheating unit and carrier separative element, can greatly simplify heat Solution and priming reaction technological process, so as to significantly reduce the pyrolysis gas mixture of fault rate and the gained cleaning of device, by straight Connect burning and separate the pyrolysis gas for obtaining, without the dedusting to high-temperature oil gas, and then existing junked tire preparation work can be solved Property charcoal leading portion pyrolytic process it is complicated, and existing pyrolysis oven and multi-stage oven coupling fluctuation of service caused by high problem.
According to one embodiment of the present utility model, feeding conveying system 101 can be located at the upper end of pyrolysis oven 100, and It is suitable to supply junked tire to pyrolysis oven.
According to further embodiment of the present utility model, pyrolytic carbon outlet 104 can be located at the bottom of pyrolysis oven 100, and The pyrolysis solid for being suitable to produce pyrolytic process discharges pyrolysis oven.
According to another embodiment of the present utility model, pyrolysis gas outlet 102 can be located on the furnace roof of pyrolysis oven 100, And the pyrolysis gas for being suitable to produce pyrolytic process discharge pyrolysis oven.
According to another embodiment of the present utility model, burner 103 is in pyrolysis oven 100 along between pyrolysis oven horizontal direction Every distribution, and every group of burner uses heat accumulation type radiant tube, can independent control operation.
According to embodiment of the present utility model, multi-stage oven 200 has carbon dioxide entrance 201, pyrolytic carbon entrance 202, gas Body outlet 203 and activated carbon outlet 204, pyrolytic carbon entrance 202 is connected with pyrolytic carbon outlet 302, and is suitable to carry out pyrolytic carbon Activation process, it is hereby achieved that activated carbon.Utility model people has found, by the hot heat that will be produced in junked tire pyrolysis oven Direct heat delivers to multi-stage oven top and the reaction of carbon dioxide counter current contacting after solution charcoal separates metal, can not only ensure that multi-stage oven is straight Connect and prepare activated carbon, and capacity usage ratio can be significantly improved, and be conducive to the junked tire to prepare activated carbon system Stability.
According to specific embodiment of the utility model, referring to figs. 2 and 3 feedstock pre-processing system 120 can include receiving The import of junked tire raw material cabin 110 and junked tire are exported.Feedstock pre-processing system 120 also includes double-shaft crusher, by right The junked tire of feeding carries out broken pretreatment, junked tire can be broken into the block material of suitable pyrolysis oven treatment, so that real Existing pyrolysis oven normally continuously runs and is pyrolyzed efficiency.
According to another specific embodiment of the present utility model, cooling and clean unit 400 have pyrolysis gas mixture Entrance, pyrolysis gas outlet and pyrolysis oil export, the pyrolysis gas mixture entrance are connected with the pyrolysis oven 100, and described Cool down the pyrolysis gas after being separated with clean unit and be passed through in the burner and burnt.
According to another specific embodiment of the present utility model, burner 103 has burner pyrolysis gas entrance and burning Device exhanst gas outlet, the pyrolysis gas entrance of burner 103 is connected with cooling and clean unit 400, is combustion by cooling and clean unit Burner 103 provides source of the gas, meets the burning of burner.The flue gas for producing that burns is discharged from burner exhanst gas outlet, it is ensured that pyrolysis The oven cavity atmosphere of stove 100 and the gas isolating of burner 103, realize that junked tire pyrolysis is carried out under anoxybiotic atmosphere, it is ensured that pyrolysis Gas has calorific value higher, while effectively inhibiting the generation of toxic and harmful.
According to another specific embodiment of the present utility model, the entrance of carbon dioxide separator 700 burns with burner 103 Flue gas 600 afterwards is connected, and will send into back segment after the carbon dioxide separation in flue gas.
According to another specific embodiment of the present utility model, the entrance of heat-storage tubular heating furnace 900 respectively with titanium dioxide Carbon separation unit 700 exports and is pyrolyzed the outlet connection of oil tank 800, and the partial thermal decomposition oil produced with pyrolysis is titanium dioxide as thermal source Carbon is heated, high-temperature gas after heating is sent into multi-stage oven 200 by carbon dioxide entrance, and is discharged with pyrolysis oven 100 Pyrolytic carbon reacts prepared activated carbon.
At second aspect of the present utility model, activated carbon is prepared the utility model proposes a kind of utilization junked tire Method.According to embodiment of the present utility model, the method is carried out using a kind of activated carbon system for preparing.It is new according to this practicality The embodiment of type, the method includes:(1) junked tire is delivered into the pretreatment unit to be pre-processed, so as to obtain heat Solution raw material;(2) junked tire after pretreatment is delivered into the pyrolysis oven carries out pyrolysis processing, so as to obtain pyrolysis solid product and Pyrolysis oil gas;(3) by the pyrolysis oil pneumatic transmission to cooling and clean unit, to obtain pyrolysis oil and pyrolysis gas;(4) will be described Pyrolysis gas are delivered to burner and are burnt, and for pyrolysis oven provides heat, and burning produces the heat for being available for the multi-stage oven reaction Flue gas;(5) pyrolysis oil is delivered into pyrolysis oil tank storage;(6) flue gas that the burner is produced is delivered into carbon dioxide Separator is separated, to obtain carbon dioxide;(7) magnetic is carried out in described pyrolysis solid product being delivered into Magnet Separater Choosing is separated, and isolates pyrolytic carbon and metal;(8) pyrolytic carbon is delivered into the multi-stage oven, pyrolytic carbon is sent out with carbon dioxide Raw reaction, to obtain activated carbon.
It has been observed that by direct with existing multi-stage oven using the internal junked tire pyrolysis oven for setting heat accumulation type radiant tube Carry out combination and prepare activated carbon, and without transforming existing multi-stage oven, you can by what is produced in junked tire pyrolysis oven Pyrolytic carbon delivers to multi-stage oven and carries out activation generation activated carbon, is pyrolysis due to using heat accumulation type radiant tube in junked tire pyrolysis oven Process provides thermal source, can realize the accurate control to pyrolytic process by adjusting the flow of the combustion gas for being passed through heat accumulation type radiant tube Temperature, and the heat accumulation type radiant tube can realize quick commutation and heat storage type combustion by two ends, it is ensured that junked tire The uniformity in temperature field in pyrolysis oven, such that it is able to significantly improve junked tire pyrolysis efficiency, while more traditional use gas Heat carrier or solid thermal carriers are compared as the pyrolytic reaction device of pyrolysis thermal source, and junked tire pyrolysis oven of the present utility model is not Need to set preheating unit and carrier separative element, pyrolysis and priming reaction technological process can be greatly simplified, so as to significantly drop The pyrolysis gas mixture of fault rate and the gained cleaning of low device, the pyrolysis gas obtained by Oil-gas Separation can be used as pyrolysis oven heat The heat for needing is solved, the pyrolysis gas for obtaining are separated with clean unit by cooling can be pyrolyzed the heat and storage that need as pyrolysis oven The heat that the heating of hot type tubular heater needs, by the gasifying agent needed for the isolated activation of carbon dioxide separator, without It is outer to supply a large amount of thermals source and activator, and then can solving existing junked tire, to prepare activated carbon operating cost high technology complicated, And the problem of existing pyrolysis oven caused fluctuation of service high with multi-stage oven coupling, while using the junked tire pyrolysis oven The easy coking of pyrolysis oven, easy blockage problem can be solved, then pyrolysis gas is recycled by using regenerative radiant tube burner, Equipment investment cost can be reduced compared with the prior art, in addition, by the hot pyrolysis that will be produced in junked tire pyrolysis oven Direct heat delivers to multi-stage oven and carbon dioxide reaction after charcoal separates metal, can not only ensure that multi-stage oven directly prepares activated carbon, And capacity usage ratio can be significantly improved, and be conducive to the junked tire to prepare the stability of activated carbon system.Need It is bright, it is above-mentioned to be equally applicable to be prepared using junked tire for a kind of feature and advantage prepared described by activated carbon system The method of activated carbon, here is omitted.
Prepared by activated carbon to a kind of utilization junked tire of the utility model embodiment below with reference to Fig. 1, Fig. 2 and Fig. 3 Method is described in detail.According to embodiment of the present utility model, the method comprises the following steps:
Raw material pre-treatment:Using junked tire by obtaining energy as the raw material of pyrolysis after pretreatment.
By junked tire deliver to feeding disintegrating machine in, junked tire can be broken into particle diameter no more than 50mm sheets and/or block The raw material of the met pyrolysis requirement of shape.
(2) charging feedstock:By above-mentioned material by helical conveyer system send into pyrolysis oven 100 in, material uniform distribution exists On drapery panel, thickness of feed layer is 150-250mm.
(3) displacement and air-leakage test:Ensuring that entirely preparing activated carbon system internal valves opens, each equipment phase It is logical, a certain amount of nitrogen or carbon dioxide are passed through to system one end, whole system is entered into line replacement, air in system of draining is shut Vent valve, it is ensured that the air-tightness of whole system is good.
(4) material pyrolysis:According to embodiment of the present utility model, by the above-mentioned material by after pretreatment of raw material by heat Solution stove upper feed inlet enters entrance storehouse, and under cloth scraper plate effect in pyrolysis oven, material uniform distribution is in reactor drapery panel On, and to fuel is supplied in heat accumulation type radiant tube in pyrolysis oven, to carry out heat to junked tire using junked tire pyrolysis oven Solution reaction, so as to obtain pyrolytic carbon and pyrolysis gas.By using the internal junked tire pyrolysis oven that heat accumulation type radiant tube is set with Existing multi-stage oven carries out combination and prepares activated carbon, and without transforming existing multi-stage oven, you can by junked tire heat Pyrolytic carbon after the hot separation produced in solution stove delivers to multi-stage oven and carries out activation generation activated carbon, due to junked tire pyrolysis oven It is middle to use heat accumulation type radiant tube to provide thermal source for pyrolytic process, the flow of the combustion gas of heat accumulation type radiant tube can be passed through by adjustment To realize the accurate temperature controlling to pyrolytic process, and the heat accumulation type radiant tube can realize quick commutation and accumulation of heat by two ends Formula is burnt, it is ensured that the uniformity in temperature field in junked tire pyrolysis oven, such that it is able to significantly improve junked tire pyrolysis effect Rate, while more traditional use gas heat carrier or solid thermal carriers are compared as the pyrolytic reaction device of pyrolysis thermal source, this reality Preheating unit and carrier separative element need not be set with new junked tire pyrolysis oven, pyrolysis can be greatly simplified and activated Reaction process flow, so as to significantly reduce the pyrolysis gas mixture of fault rate and the gained cleaning of device, by cooling down and purifying Unit separates the heat that the pyrolysis gas for obtaining can need as the heat of pyrolysis oven pyrolysis needs and heat-storage tubular heating stove heat Amount, by the gasifying agent needed for the isolated activation of carbon dioxide separator, a large amount of thermals source and activator, Jin Erke is supplied without outer Activated carbon operating cost high technology complexity, and existing pyrolysis oven and multi-stage oven coupling are prepared to solve existing junked tire The problem of fluctuation of service caused by high.
(5) burner combustion heat supply:According to embodiment of the present utility model, the pyrolysis air lift that junked tire pyrolysis is produced Supply pyrolysis apparatus is burnt, and pyrolysis apparatus is made up of many heat accumulation type radiant tubes, and heat accumulation type radiant tube even level is arranged in cloth Flitch top, by radiant heat transfer for junked tire provides heat, every heat accumulation type radiant tube uses independent control system, can The accurate temperature controlling to pyrolytic process, heat storage type combustion are realized with by adjusting the flow of the combustion gas for being passed through heat accumulation type radiant tube Device, can bring up to 300~450 DEG C by normal temperature air temperature highest, at the same burn produce flue-gas temperature can be down to 120 DEG C with Under.Heat accumulation type radiant tube front end can be provided with surge tank in pyrolysis gas as needed, for caching part pyrolysis gas, meet Radiant tube can also be met under conditions of unexpected blowing out uninterruptedly to burn.In junked tire pyrolytic process, material is quiet with respect to charging tray Only motionless, it is to avoid the generation of flying dust, so as to improve pyrolysis oil quality, junked tire pyrolysis oven of the present utility model need not be set Preheating unit and carrier separative element, can greatly simplify pyrolysis and priming reaction technological process, so as to significantly reduce device Fault rate.
(6) carbon dioxide separation:According to embodiment of the present utility model, the flue gas of burner combustion is sent into carbon dioxide In separator, the carbon dioxide in flue gas is separated into feeding back segment.
(7) carbon dioxide preheating:According to embodiment of the present utility model, the carbon dioxide that will be obtained is passed through heat-storage tubular Exchanged heat in heating furnace, carbon dioxide temperature is brought up to 600~850 DEG C, reached reaction temperature needed for multi-stage oven activation.Plus Hot stove is heated using heat accumulating type, heat utilization efficiency is greatly improved, so that reducing energy consumption.
It has been observed that being carried out with existing multi-stage oven by using the internal junked tire pyrolysis oven for setting heat accumulation type radiant tube Combination prepares activated carbon, and without transforming existing multi-stage oven, you can it is hot by what is produced in junked tire pyrolysis oven Pyrolytic carbon after metal separation delivers to multi-stage oven and carries out activation generation activated carbon.Can solve directly to use multi-stage oven using this technique Cause to block into pipeline and dust pelletizing system with pyrolysis gas in pyrolysis and activation process, during fraction solids Logistics and asked again with dust Topic, while the loss of solid can take away partial heat, the problems such as cause heat loss serious.When solid is fluidized in multi-stage oven, stop Time difficult control is stayed, also thoroughly pyrolysis is not just discharged from discharging opening to cause fraction solids charcoal, can there is more Jiao in solid carbon Oil, and the subsequent solid charcoal activation that exists for of tar increases difficulty, reduces the specific surface area of activated carbon.Simultaneously more traditional use Gas heat carrier or solid thermal carriers are compared as the pyrolytic reaction device of pyrolysis thermal source, junked tire pyrolysis of the present utility model Stove need not set preheating unit and carrier separative element, can greatly simplify pyrolysis and priming reaction technological process, so that aobvious The pyrolysis gas mixture of fault rate and the gained cleaning for reducing device is write, the pyrolysis gas for obtaining are separated with clean unit by cooling The heat that the heat and heat-storage tubular heating stove heat that can be needed as pyrolysis oven pyrolysis need, by carbon dioxide separator Gasifying agent needed for isolated activation, supplies a large amount of thermals source and activator, and then can solve existing junked tire without outer Prepare fluctuation of service caused by activated carbon operating cost high technology is complicated, and existing pyrolysis oven and multi-stage oven coupling are high Problem, while the easy coking of pyrolysis oven, easy blockage problem can be solved using the junked tire pyrolysis oven, then by using accumulation of heat Formula radiant tube burner recycles pyrolysis gas, and equipment investment cost can be reduced compared with the prior art, in addition, by that will give up Direct heat delivers to multi-stage oven and carbon dioxide reaction after the hot pyrolytic carbon produced in old tire pyrolysis oven separates metal, can not only Enough ensure that multi-stage oven directly prepares activated carbon, and capacity usage ratio can be significantly improved, and be conducive to the junked tire system The stability of standby activated carbon system.
Sorting substances after pyrolysis are gone out activable material by the utility model using Magnet Separater to be carried out further Recycling with produce higher value by-product;The utility model utilizes carbon dioxide separator by junked tire pyrolysis oven The flue gas of inner burner is separated;It is used as activator after carbon dioxide after separation is heated, takes full advantage of the energy, Recycling for the energy is accomplished.
In a word, the utility model solves existing pyrolysis effect is poor, high energy consumption, serious heat loss, prepares activated carbon product The problem of matter difference, while the stability of operation is able to ensure that when being prepared activated carbon using the system for preparing activated carbon, it is whole Individual system prevents the generation of poisonous and harmful secondary pollution.The utility model causes that the material after pyrolysis has carried out resource profit With, cause heat that pyrolytic process produces, flue gas equal energy source recycled.
Below with reference to specific embodiment, the utility model is described, it is necessary to explanation is, these embodiments are only Descriptive, and the utility model is limited never in any form.
Embodiment
With junked tire as raw material, prepare activated carbon system using junked tire and be prepared activated carbon, junked tire system The technique of standby activated carbon system is as shown in Fig. 2 as follows using the method that junked tire prepares activated carbon:
(1) 10 tons of junked tires are carried out into break process, obtains the particle diameter following broken materials of 50mm;
(2) junked tire feeding pyrolysis oven that will be broken is pyrolyzed, material uniform distribution on drapery panel, thickness of feed layer It is 180mm.Heating radiation pipe is provided with the pyrolysis oven, pyrolysis obtains pyrolysis solid product (temperature is about 550 DEG C) and pyrolysis Oil gas (temperature is about 600 DEG C), after the pyrolysis solid product feeding Magnet Separater of generation isolates metal, remaining pyrolytic carbon Feeding multi-stage oven;
(3) the gas mixture feeding cooling for producing will be pyrolyzed to be cooled down, separated and purified with clean unit, so as to obtain The pyrolysis gas and pyrolysis oil that must be cleaned;
(4) will be burnt in isolated pyrolysis gas feeding burner, burner uses heat-storage type burner, can be by Normal temperature air temperature highest brings up to 400 DEG C, and the flue-gas temperature for producing of burning can be down to 110 DEG C or so;
(5) will be stored for future use in isolated pyrolysis oil feeding pyrolysis oil tank;
(6) by pyrolysis oil send into heat-storage tubular heating furnace in, be carbon dioxide heat supply with pyrolysis oil;By carbon dioxide gas Temperature is 850 DEG C or so, in feeding multi-stage oven.
(7) pyrolytic carbon that the carbon dioxide obtained in step (6) is obtained with step (2) is inversely contacted instead in multi-stage oven Activated carbon should be obtained, multi-stage oven reaction temperature is controlled at 850 DEG C or so;
Process described in the utility model can long-term smooth operation, the prepared activated carbon product of resulting above-mentioned junked tire The yield and main character of thing are shown in Table 1.
The data result of table 1
As can be seen from Table 1, the utility model can directly carry out recycling junked tire by said system and method Plate, is obtained preferable activated carbon product.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be with Combined in an appropriate manner in any one or more embodiments or example.Additionally, in the case of not conflicting, this area Technical staff the feature of the different embodiments or example described in this specification and different embodiment or example can be entered Row is combined and combined.
Finally it should be noted that:Obviously, above-described embodiment is only intended to clearly illustrate the utility model example, And not to the restriction of implementation method.For those of ordinary skill in the field, may be used also on the basis of the above description To make other changes in different forms.There is no need and unable to be exhaustive to all of implementation method.And thus Among the obvious change or variation amplified out are still in protection domain of the present utility model.

Claims (8)

1. the system that a kind of heat recovery of junked tire prepares activated carbon, the system include junked tire pyrolysis oven, Magnet Separater, multi-stage oven, carbon dioxide separator, heat-storage tubular heating furnace, wherein,
Reative cell and burner are provided with the junked tire pyrolysis oven;Charging aperture is provided with the top of the junked tire pyrolysis oven With pyrolysis oil gas vent;The bottom of the junked tire pyrolysis oven is provided with pyrolysis solid outlet;
The Magnet Separater is provided with pyrolysis solid inlet and pyrolytic carbon outlet, pyrolysis solid inlet and the junked tire The pyrolysis solid outlet of pyrolysis oven is connected;
The carbon dioxide separator is connected with the exhanst gas outlet of the burner in the junked tire pyrolysis oven;
Carbon dioxide outlet after the entrance of the heat-storage tubular heating furnace is separated with the carbon dioxide separator is connected;
The multi-stage oven is provided with the outlet of first entrance, second entrance, exhanst gas outlet and activated carbon, the first entrance and the magnetic The pyrolytic carbon of separator is selected to export connection, the carbon dioxide outlet phase of the second entrance and the heat-storage tubular heating furnace Even.
2. system according to claim 1, it is characterised in that the side wall of the junked tire pyrolysis oven is provided with multiple outlets Mouthful.
3. system according to claim 2, it is characterised in that the burner is located at anti-in the junked tire pyrolysis oven Answer the top of room.
4. system according to claim 2, it is characterised in that multiple gas outlet in the vertical directions are located at the combustion The top of burner.
5. system according to claim 1, it is characterised in that the second entrance connection vapor delivery pipe of the multi-stage oven Road and/or carbon dioxide conveyance conduit.
6. system according to claim 1, it is characterised in that the system also includes cooling and clean unit, described cold But pyrolysis oil gas entrance, pyrolysis gas outlet and pyrolysis oil export are provided with clean unit, the pyrolysis oil gas entrance is useless with described The pyrolysis oil gas vent of old tire pyrolysis oven is connected.
7. system according to claim 6, it is characterised in that the system also includes pyrolysis oil tank, the pyrolysis oil The entrance of storage tank is connected with the pyrolysis oil export of the cooling and clean unit.
8. system according to claim 6, it is characterised in that the entrance of the heat-storage tubular heating furnace respectively with it is described The outlet connection of the carbon dioxide outlet of carbon dioxide separator and the pyrolysis oil tank.
CN201621344416.6U 2016-12-08 2016-12-08 The system that a kind of heat recovery of junked tire prepares activated carbon Active CN206278915U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106698421A (en) * 2016-12-08 2017-05-24 北京神雾环境能源科技集团股份有限公司 System and method for preparing activated carbon by energy cyclic utilization of waste tires

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106698421A (en) * 2016-12-08 2017-05-24 北京神雾环境能源科技集团股份有限公司 System and method for preparing activated carbon by energy cyclic utilization of waste tires

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