CN206278920U - A kind of system of rotary pyrolysis processing domestic sludge - Google Patents

A kind of system of rotary pyrolysis processing domestic sludge Download PDF

Info

Publication number
CN206278920U
CN206278920U CN201621345191.6U CN201621345191U CN206278920U CN 206278920 U CN206278920 U CN 206278920U CN 201621345191 U CN201621345191 U CN 201621345191U CN 206278920 U CN206278920 U CN 206278920U
Authority
CN
China
Prior art keywords
pyrolysis
burner
pyrolytic
sludge
stove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201621345191.6U
Other languages
Chinese (zh)
Inventor
吴小飞
巴玉鑫
肖磊
王惠惠
房凯
牛明杰
宋敏洁
吴道洪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenwu Technology Group Corp Co Ltd
Original Assignee
Beijing Shenwu Environmental and Energy Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Shenwu Environmental and Energy Technology Co Ltd filed Critical Beijing Shenwu Environmental and Energy Technology Co Ltd
Priority to CN201621345191.6U priority Critical patent/CN206278920U/en
Application granted granted Critical
Publication of CN206278920U publication Critical patent/CN206278920U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/40Valorisation of by-products of wastewater, sewage or sludge processing

Abstract

The utility model is related to a kind of system of rotary pyrolysis processing domestic sludge.The system includes the pyrolyzing sludge stove and fluid bed that sequentially set, wherein, reative cell being provided with the pyrolyzing sludge stove, holding disk and burner, described to hold the bottom that disk is rotationally arranged at the reative cell, the burner holds the top of disk in the reative cell;Pyrolysis feed import and pyrolysis oil gas vent are provided with the top of the pyrolyzing sludge stove;The bottom of the pyrolyzing sludge stove is provided with pyrolytic carbon outlet;The fluid bed is used for the pyrolytic carbon received after pyrolysis and it is activated.The technical solution of the utility model, avoid original fluidized bed pyrolysis technology and produce a large amount of dust because pyrolysis feed pyrolysis is insufficient, cause blocking and dust weight problem into pipeline and dust pelletizing system with pyrolysis gas during fraction solids Logistics, the problems such as causing failure to pause and repair, the utility model can obtain preferably pyrolysis effect and direct utilization, low cost.

Description

A kind of system of rotary pyrolysis processing domestic sludge
Technical field
The utility model relates generally to a kind of technology of pyrolyzing sludge, and in particular to a kind of rotary pyrolysis processing life is dirty The system of mud.
Background technology
Domestic sludge and other sticky carbonaceous materials (such as oil field oiliness sludge, mud containing mine dust, industrial sludge, dangerous waste liquid) Thermochemical study (as carbonization, pyrolysis, gasification) solid-state, liquid and gaseous products can be produced, these products are made on demand can Recovery, easily utilization, easily transport and the energy form of easy storage, can heat supply generating or the raw material as chemical industry and other industries.Root The difference of different and heat treatment purpose according to raw material, can be anti-using carbonization, gasification, pyrolysis, liquefaction or other related heat chemistrys Should and technique.If but be raw material by domestic sludge, through that can produce fuel-displaced, gas and solid carbon after carbonization, part substitute coal, The resources such as oil, natural gas.But, in order to ensure economic benefit, it is still desirable to develop to the suitable work of life pyrolyzing sludge phase Skill route.
It has been investigated that, at temperatures of some hundreds of degrees celsius by charing, reactivation can prepare activated carbon to carbon containing material.
During tradition carries out Treatment of Sludge only with fluid bed to raw material pyrolysis, with pyrolysis during fraction solids Logistics Gas causes to block and dust weight problem into pipeline and dust pelletizing system, while the loss of solid can take away partial heat, causes heat Loss is serious.
And solid in fluid bed when fluidizing, residence time difficult control causes fraction solids charcoal not bottom out pyrolysis also just From discharging opening discharge, can there is more tar in solid carbon, and the subsequent solid charcoal activation that exists for of tar increases difficulty, drop The specific surface area of low activity charcoal.
In existing pyrolyzing sludge technology, pyrolysis system is susceptible to line clogging and then causes Frequent Troubles, it is often necessary to Maintenance shut-downs, production efficiency is low, the problems such as production cost is high.
In view of the shortcomings of the prior art, the problems such as being susceptible to line clogging to solve pyrolyzing sludge system, together When design pyrolysis in hgher efficiency, sludge directly carry out recycling and the small sludge treating system of energy consumption, the utility model It is directed to a kind of system of rotary pyrolysis processing domestic sludge.
Utility model content
The purpose of this utility model is to provide a kind of system of rotary pyrolysis processing domestic sludge, to solve sludge hot The problems such as solution system is susceptible to line clogging, at the same design pyrolysis in hgher efficiency, sludge directly carry out recycling and The small sludge treating system of energy consumption.
The utility model provides a kind of system of rotary pyrolysis processing domestic sludge, and the system includes what is sequentially set Pyrolyzing sludge stove and fluid bed, wherein, it is provided with reative cell in the pyrolyzing sludge stove, holds disk and burner, it is described to hold disk The bottom of the reative cell is rotationally arranged at, the burner holds the top of disk in the reative cell;The dirt Pyrolysis feed import and pyrolysis oil gas vent are provided with the top of mud pyrolysis oven;The bottom of the pyrolyzing sludge stove is provided with pyrolytic carbon and goes out Mouthful;There is the fluid bed pyrolytic carbon entrance, activator import, gas vent and activated carbon to export, the pyrolytic carbon entrance with The pyrolytic carbon outlet connection of the pyrolyzing sludge stove, for receiving the pyrolytic carbon after pyrolysis and being activated to it.
Above-mentioned system, is provided with multiple gas outlets at the top of the pyrolysis oven, for the adjustment of pyrolysis oven furnace pressure.
Above-mentioned system, the burner is located at the top of the pyrolyzing sludge reaction in furnace room.
Above-mentioned system, the activator import connection vapor conveyance conduit of the fluid bed or carbon dioxide conveying Pipeline.
Above-mentioned system, the burner is multigroup, and the burner is spaced along the horizontal direction of the pyrolyzing sludge stove Distribution, and burner described in every group can independent control operation.
Above-mentioned system, the system also includes the pretreatment unit located at the pyrolyzing sludge stokehold.
Above-mentioned system, the system also includes cooling and clean unit, and the cooling and clean unit have pyrolysis oil Gas entrance, pyrolysis gas outlet and pyrolytic behavior outlet, the pyrolysis oil gas entrance are connected with the pyrolysis oil gas vent of the pyrolysis oven.
Above-mentioned system, the system further comprises gun barrel, the gun barrel and the cooling and The pyrolytic behavior outlet of clean unit is connected, and for being separated to the pyrolytic behavior, obtains pyrolysis oil and pyrolysis water.
The beneficial effects of the utility model are to carry out heat by the pyrolysis oven that disk is held with rotatable pyrolysis feed Solution, avoids original fluidized bed pyrolysis technology and produces a large amount of dust because pyrolysis feed pyrolysis is insufficient, and then pipeline occur and block up The problems such as filling in, cause failure to pause and repair;The utility model can individually open certain or multiple according to the yield of pyrolysis gas Gas outlet, realizes the stabilization of pyrolysis oven furnace pressure in gas generation process, has further ensured the stability of pyrolytic process, it is ensured that this Utility model can obtain preferably pyrolysis effect.
Further, directly be connected the pyrolytic carbon after pyrolysis with fluid bed by the system, make use of fluid bed bed volume There is expansion and cause that there is fluidisation object particle to loosen, intergranular space increases, the pyrolytic carbon is reacted with activator, The activated carbon for obtaining has larger pore structure, thus with preferable characterization of adsorption, solves energy consumption when preparing activated carbon Height, serious heat loss, prepare the inferior problem of activated carbon.
The utility model sets burner above pyrolysis feed and is heated, and solves during using particle heat carrier, heat In the easy coking of particle surface during solution, the problems such as particle separates difficult, particle transmits difficulty between bed.
The method that the utility model prepares activated carbon using domestic sludge, inorganic matter is taken away largely in reducing pyrolytic process Heat, reduces heat loss, reducing energy consumption, and improves pyrolysis oven production capacity, realizes the abundant pyrolysis of raw material, whole technique letter It is single, it is easy to operate, it can be ensured that the stability of operation.
Brief description of the drawings
Fig. 1 prepares the structural representation of activated carbon for the pyrolyzing sludge of the utility model embodiment;
Fig. 2 prepares the schematic flow sheet of activated carbon for the pyrolyzing sludge of the utility model embodiment;
Fig. 3 prepares the flowage structure schematic diagram of activated carbon for the pyrolyzing sludge 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 one side of the present utility model, the utility model proposes the system of rotary pyrolysis processing domestic sludge, The system is used to realize that the sludge after pyrolysis directly carries out recycling.
According to embodiment of the present utility model, this is included using the system that domestic sludge prepares activated carbon:The sludge hot Reative cell is provided with solution stove, be located at the rotatable disk that holds for holding pyrolysis feed of the reative cell bottom, and in the Sheng Burner above sale at reduced prices and contained raw material;Pyrolysis feed import is provided with the top of the pyrolyzing sludge stove and pyrolysis oil gas goes out Mouthful;The bottom of the pyrolyzing sludge stove is provided with pyrolytic carbon outlet;The fluid bed has pyrolytic carbon entrance, activator import, gas Body is exported and activated carbon outlet, and the pyrolytic carbon entrance is connected with the pyrolytic carbon outlet of the pyrolyzing sludge stove, for receiving heat Pyrolytic carbon after solution is simultaneously activated to it.
It has been observed that being carried out with existing fluid bed by using the internal domestic sludge pyrolysis oven for setting heat accumulation type radiant tube Combination prepares activated carbon, and without transforming existing fluid bed, you can it is hot by what is produced in domestic sludge pyrolysis oven Pyrolytic carbon delivers to fluid bed and carries out activation generation activated carbon, is pyrolysis due to using heat accumulation type radiant tube in domestic sludge 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 domestic sludge The uniformity in temperature field in pyrolysis oven, such that it is able to significantly improve domestic sludge pyrolysis efficiency.
Simultaneously more traditional use gas heat carrier or solid thermal carriers are compared as the pyrolytic reaction device of pyrolysis thermal source, Domestic sludge pyrolysis oven of the present utility model need not set preheating unit and carrier separative element, can greatly simplify pyrolysis and Priming reaction technological process, so as to significantly reduce the pyrolysis gas mixture of fault rate and the gained cleaning of device, by oil gas point From the heat that the pyrolysis gas for obtaining can need as pyrolysis oven pyrolysis, the work needed for being activated can be separated by gun barrel Thermal source oil needed for agent and gasification, supplies a large amount of thermals source and water, by the isolated activation institute of carbon dioxide separator without outer The activator for needing, and then existing domestic sludge can be solved prepare that activated carbon operating cost is high, complex process, and existing heat The problem of solution stove caused fluctuation of service high with fluid bed coupling.Heat can be solved using the domestic sludge pyrolysis oven simultaneously The easy coking of solution stove, susceptible to plugging problem, then recycle pyrolysis gas, more existing skill by using regenerative radiant tube burner Art compared to equipment investment cost can be reduced, in addition, directly hot by the hot pyrolytic carbon that will be produced in domestic sludge pyrolysis oven Deliver to fluid bed to be reacted with activator, can not only ensure that fluid bed directly prepares activated carbon, and energy can be significantly improved Utilization rate, and when the stability for utilizing the domestic sludge to prepare activated carbon system.
Activated carbon system is prepared below with reference to Fig. 1, Fig. 2 and Fig. 3 to the utilization domestic sludge 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 domestic sludge includes:Pyrolysis oven 100 With fluid bed 200.
According to embodiment of the present utility model, there is pyrolysis oven 100 feeding conveying system, pyrolysis gas outlet, pyrolytic carbon to go out Mouthful, and pyrolysis oven 100 is internally provided with multigroup burner 103, and be suitable to for domestic sludge to carry out pyrolytic reaction, such that it is able to Obtain pyrolytic carbon and pyrolysis gas.
It has been observed that by direct with existing fluid bed using the internal domestic sludge pyrolysis oven for setting heat accumulation type radiant tube Carry out combination and prepare activated carbon, and without transforming existing fluid bed, you can by what is produced in domestic sludge pyrolysis oven The pyrolytic carbon of heat is fed directly to fluid bed and carries out activation generation activated carbon, due to being radiated using heat accumulating type in domestic sludge pyrolysis oven Manage as pyrolytic process provides thermal source, can be realized to pyrolytic process by adjusting the flow of the combustion gas for being passed through heat accumulation type radiant tube Accurate temperature controlling, and the heat accumulation type radiant tube can realize quick commutation and heat storage type combustion by two ends, it is ensured that The uniformity in temperature field in domestic sludge pyrolysis oven, such that it is able to significantly improve domestic sludge pyrolysis efficiency, while more traditional Compared as the pyrolytic reaction device of pyrolysis thermal source using gas heat carrier or solid thermal carriers, domestic sludge of the present utility model Pyrolysis oven need not set preheating unit and carrier separative element, can greatly simplify pyrolysis and priming reaction technological process, from And significantly reduce the fault rate of device, and gained cleaning pyrolysis gas mixture, the pyrolysis gas of acquisition are separated by directly burning, And without high-temperature oil gas are carried out with dedusting, and then existing domestic sludge can be solved prepare activated carbon because leading portion pyrolytic process is multiple It is miscellaneous, and caused by pyrolysis oven and fluid bed coupling are high fluctuation of service 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 domestic sludge 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 pyrolytic carbon 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, fluid bed 200 has activator (vapor and/or carbon dioxide) entrance 201st, pyrolytic carbon entrance 202, gas vent 203 and activated carbon outlet 204, pyrolytic carbon entrance 202 exports 104 phases with pyrolytic carbon Connect, and be suitable to be processed pyrolytic carbon, it is hereby achieved that activated carbon.Utility model people has found, by the way that domestic sludge is warm The hot direct heat of pyrolytic carbon produced in solution stove is delivered to fluid bed and is reacted with vapor, can not only ensure that fluid bed is directly prepared Activated carbon, and capacity usage ratio can be significantly improved, and when the stability for utilizing the domestic sludge to prepare activated carbon system.
According to specific embodiment of the utility model, referring to figs. 2 and 3 pretreatment unit 120 can include receiving living The import of sludge raw material cabin 110 and domestic sludge are exported.Feedstock pre-processing system 120 also includes dryer, by the life to sending into Sludge living carries out drying pretreatment, can dry domestic sludge to the material of suitable pyrolysis oven treatment, so as to realize pyrolysis oven just Often continuously run and be pyrolyzed efficiency.
According to another specific embodiment of the present utility model, cooling and clean unit 300 have pyrolysis oil gas entrance, heat Vent one's spleen and export and pyrolytic behavior outlet, the pyrolysis oil gas entrance is connected with the pyrolysis oven, and the cooling and clean unit point Pyrolysis gas after are passed through in the burner and are burnt.
According to another specific embodiment of the present utility model, burner 103 has pyrolysis gas entrance and burner flue gas Outlet, the pyrolysis gas entrance of burner 103 is connected with cooling and clean unit 300, is burner 103 by cooling and clean unit Source of the gas is provided, the burning of burner is met.The flue gas for producing that burns is discharged from burner exhanst gas outlet, it is ensured that the stove of pyrolysis oven 100 Thorax atmosphere and the gas isolating of burner 103, realize that domestic sludge pyrolysis is carried out under anoxybiotic atmosphere, it is ensured that pyrolysis gas have compared with Calorific value high, while effectively inhibiting the generation of toxic and harmful.
According to another specific embodiment of the present utility model, after gun barrel 400 has pyrolytic behavior entrance and separates Pyrolysis oil export 401 and pyrolysis water out 402, pyrolytic behavior entrance is exported with pyrolytic behavior before the water-oil separating of gun barrel 400 It is connected, receives cooling and the isolated pyrolytic behavior of clean unit 300, and pyrolytic behavior is divided in gun barrel 400 From pyrolysis water and pyrolysis oil after separation send into back segment by the outlet after water-oil separating.
According to another specific embodiment of the present utility model, the entrance of steam boiler 410 respectively with separate after pyrolysis water With pyrolysis oil export connection, pyrolysis water is heated with the pyrolysis oil after separation, the vapor obtained after heating passes through vapor pipe Send into back segment in road.
According to another specific embodiment of the present utility model, the entrance of heat-storage tubular heating furnace 800 respectively with steam copper Vapor outlet port and gun barrel pyrolysis oil export connection that stove 410 is produced, the low temperature for obtaining are heated with the pyrolysis oil for obtaining and are steamed Gas, the high-temperature vapour after heating passes through in the feeding fluid bed 200 of steam entry 201, and the pyrolysis discharged with pyrolysis oven 100 Charcoal reacts prepared activated carbon.
According to another specific embodiment of the present utility model, the entrance of heat-storage tubular heating furnace 800 divides with carbon dioxide Connection is exported from device to receive the carbon dioxide produced after separation.
At second aspect of the present utility model, activated carbon is prepared the utility model proposes a kind of utilization domestic sludge 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) domestic sludge is delivered into the pretreatment unit to be pre-processed, so as to obtain heat Solution raw material;(2) domestic sludge after pretreatment is delivered into the pyrolysis oven carries out pyrolysis processing, to obtain pyrolytic carbon and pyrolysis oil Gas;(3) by the pyrolysis oil pneumatic transmission to cooling and clean unit, to obtain pyrolytic behavior and pyrolysis gas;(4) by the pyrolysis gas It is delivered to burner to be burnt, for pyrolysis oven provides heat, and burning produces the heat smoke for being available for the fluidized-bed reaction; (5) pyrolytic behavior is delivered into gun barrel, to obtain pyrolysis oil and pyrolysis water;(6) by the pyrolysis oil and pyrolysis water Steam boiler is sent into simultaneously, pyrolysis water is heated with pyrolysis oil, to obtain vapor;(7) pyrolytic carbon is delivered into the stream Change bed, pyrolytic carbon is reacted with activator (vapor and/or carbon dioxide), to obtain activated carbon.
It has been observed that by direct with existing fluid bed using the internal domestic sludge pyrolysis oven for setting heat accumulation type radiant tube Carry out combination and prepare activated carbon, and without transforming existing fluid bed, you can by what is produced in domestic sludge pyrolysis oven Heat pyrolytic carbon deliver to fluid bed carry out activation produce activated carbon, due to used in domestic sludge pyrolysis oven heat accumulation type radiant tube for Pyrolytic process provides thermal source, can realize the essence to pyrolytic process by adjusting the flow of the combustion gas for being passed through heat accumulation type radiant tube True temperature control, and the heat accumulation type radiant tube can realize quick commutation and heat storage type combustion by two ends, it is ensured that life The uniformity in temperature field in pyrolyzing sludge stove, such that it is able to significantly improve domestic sludge pyrolysis efficiency, while more traditional use Gas heat carrier or solid thermal carriers are compared as the pyrolytic reaction device of pyrolysis thermal source, domestic sludge 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 obtained by Oil-gas Separation can be used as pyrolysis The heat that stove pyrolysis needs, the pyrolysis gas obtained by Oil-gas Separation can be pyrolyzed the heat for needing as pyrolysis oven, by profit Knockout drum can be separated the activator needed for being activated and the thermal source oil needed for gasification, and a large amount of thermals source and water are supplied without outer, pass through Activator needed for the isolated activation of carbon dioxide separator, so can solve existing domestic sludge prepare activated carbon fortune The costly complex process of row, and existing pyrolysis oven and fluid bed coupling fluctuation of service caused by high problem, while adopting The easy coking of pyrolysis oven, easy blockage problem can be solved with the domestic sludge 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 domestic sludge The hot direct heat of pyrolytic carbon produced in stove is delivered to fluid bed and is reacted with activator, can not only ensure that fluid bed directly prepares work Property charcoal, and capacity usage ratio can be significantly improved, and when the stability for utilizing the domestic sludge to prepare activated carbon system.Need It is noted that above-mentioned be equally applicable to utilize domestic sludge for a kind of feature and advantage prepared described by activated carbon system The method for preparing activated carbon, here is omitted.
Prepared by activated carbon to a kind of utilization domestic sludge 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 domestic sludge by obtaining energy as the raw material of pyrolysis after pretreatment.
By domestic sludge deliver to feeding dryer in, can dry to moisture content domestic sludge can meet pyrolysis less than 46% It is required that material.
(2) charging feedstock:During above-mentioned material sent into pyrolysis oven 100 by feeding conveying system 101, material uniform distribution On drapery panel, thickness of feed layer is 100-200mm.
(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 vapor are passed through to system one end, whole system is entered into line replacement, air in system of draining is shut and is put Air 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 feeding entrance storehouse, 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 domestic sludge using domestic sludge pyrolysis oven Solution reaction, so as to obtain pyrolytic carbon and pyrolysis gas.By using the internal domestic sludge pyrolysis oven that heat accumulation type radiant tube is set with Existing fluid bed directly carries out combination and prepares activated carbon, and without transforming existing fluid bed, you can life is dirty The hot pyrolytic carbon produced in mud pyrolysis oven delivers to fluid bed and carries out activation generation activated carbon, due to being adopted in domestic sludge pyrolysis oven With heat accumulation type radiant tube for pyrolytic process provides thermal source, can be by adjusting the flow of the combustion gas for being passed through heat accumulation type radiant tube come real Now to the accurate temperature controlling of pyrolytic process, and the heat accumulation type radiant tube can realize that quick commutation and heat accumulating type fire by two ends Burn, it is ensured that the uniformity in temperature field in domestic sludge pyrolysis oven, such that it is able to significantly improve domestic sludge pyrolysis efficiency, together When it is more traditional use gas heat carrier or solid thermal carriers to be compared as the pyrolytic reaction device of pyrolysis thermal source, the utility model Domestic sludge pyrolysis oven preheating unit and carrier separative element need not be set, can greatly simplify pyrolysis and priming reaction work Skill flow, it is separable by gun barrel so as to significantly reduce the pyrolysis gas mixture of fault rate and the gained cleaning of device The thermal source oil needed for activator and gasification needed for being activated, supplies a large amount of thermals source and water, and then can solve existing without outer Domestic sludge behaviour caused by prepare activated carbon operating cost high technology complicated, and existing pyrolysis oven is high with fluid bed coupling Make unstable problem.
(5) burner combustion heat supply:According to embodiment of the present utility model, the pyrolysis air lift that domestic sludge 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 domestic sludge 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, while the flue-gas temperature for producing of burning can be down to less than 120 DEG C.Can Heat accumulation type radiant tube front end is provided with surge tank in pyrolysis gas, for caching part pyrolysis gas, meets in unexpected blowing out Under the conditions of can also meet radiant tube and uninterruptedly burn.
In domestic sludge pyrolytic process, material is with respect to charging tray transfixion, it is to avoid the generation of flying dust, along with surge tank Set, pyrolysis gas can be avoided into lime-ash problem can be brought during burner into, therefore the heat of mixing is vented one's spleen and can be fed directly to pyrolysis Burnt in device, so that domestic sludge pyrolysis oven of the present utility model need not set preheating unit and carrier separative element, can be with Pyrolysis and priming reaction technological process are greatly simplified, so as to significantly reduce the fault rate of device.
(6) cooling and clean unit:According to embodiment of the present utility model, the pyrolysis oil pneumatic transmission that pyrolysis oven pyrolysis is produced Enter after cooling and clean unit first reclaim pyrolytic behavior cooling, then pyrolysis gas are carried out send into burner after desulfurization deamination purification and make With.
(7) prepared by vapor:According to embodiment of the present utility model, isolated pyrolysis water and pyrolysis oil feeding are steamed In gas boiler, pyrolysis water is heated with pyrolysis oil direct combustion device, 180 DEG C of low-pressure steam is obtained.
(8) vapor preheating:According to embodiment of the present utility model, the vapor that will be obtained is passed through heat-storage tubular heating Heated in stove, steam temperature is brought up to 700~900 DEG C, reached reaction temperature needed for fluid bed activation.
(9) 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.
(10) carbon dioxide preheating:According to embodiment of the present utility model, the carbon dioxide that will be obtained is passed through heat accumulating type pipe Heated in formula heating furnace, carbon dioxide temperature is brought up to 600~850 DEG C, reached reaction temperature needed for fluid bed activation. Heating furnace is heated using heat accumulating type, heat utilization efficiency is greatly improved, so that reducing energy consumption.Heat-storage tubular heating furnace as needed Individually vapor or carbon dioxide can be preheated, also both can simultaneously be preheated.
It has been observed that directly being joined with fluid bed by using the internal domestic sludge pyrolysis oven for setting heat accumulation type radiant tube With preparing activated carbon, and transformed without carry out fluidisation pyrolytic technique to existing use fluid bed, you can by domestic sludge The hot pyrolytic carbon produced in pyrolysis oven delivers to fluid bed and carries out activation generation activated carbon.
Can be solved during tradition carries out Treatment of Sludge only with fluid bed to raw material pyrolysis using this technique, part is solid Cause blocking and dust weight problem into pipeline and dust pelletizing system with pyrolysis gas during body Logistics, while the loss of solid can be taken away Partial heat, causes heat loss serious.
And solid in fluid bed when fluidizing, residence time difficult control causes fraction solids charcoal not bottom out pyrolysis also just From discharging opening discharge, can there is more tar in solid carbon, and the subsequent solid charcoal activation that exists for of tar increases difficulty, drop The specific surface area of low activity charcoal.
And on the other hand, the utility model rightly make use of the characteristic of fluid bed, i.e., when the speed that fluid passes through bed again When degree is gradually increased to certain value, loosening occurs in particle, and expansion occurs in intergranular space increase, bed volume;If further Fluid velocity is improved, bed can not maintain stationary state.Now, particle is all suspended in fluid, is shown and do not advise quite Motion then;With the raising of flow velocity, the motion of particle is further violent, and the expansion of bed also increases therewith, activator and particle It is fully contacted, increases contact area, but particle is still remained in bed without being taken out of by fluid.The utility model is above-mentioned stream The kinetic characteristic for changing bed has been used in during pyrolytic carbon activation prepares activated carbon so that there is obtained activated carbon space to tie Structure is flourishing, and specific surface area is big, high adsorption capacity.The especially big feature of pore structure so that activated carbon can effectively in adsorptive liquid Larger various materials, the impurity such as color.
Simultaneously more traditional use gas heat carrier or solid thermal carriers are compared as the pyrolytic reaction device of pyrolysis thermal source, Domestic sludge pyrolysis oven of the present utility model need not set preheating unit and carrier separative element, can greatly simplify pyrolysis and Priming reaction technological process, so as to significantly reduce the pyrolysis gas mixture of fault rate and the gained cleaning of device.By oil gas point From the heat that the pyrolysis gas for obtaining can need as pyrolysis oven pyrolysis, the work needed for being activated can be separated by gun barrel Thermal source oil needed for agent and gasification, supplies a large amount of thermals source and water, by the isolated activation institute of carbon dioxide separator without outer The activator for needing, and then can solving existing domestic sludge, to prepare activated carbon operating cost high technology complicated, and existing heat The problem of solution stove caused fluctuation of service high with fluid bed coupling, while heat can be solved using the domestic sludge pyrolysis oven The easy coking of solution stove, easy blockage problem, then recycle pyrolysis gas, compared with prior art by using regenerative radiant tube burner Compared to equipment investment cost can be reduced, in addition, being sent by by the hot direct heat of pyrolytic carbon produced in domestic sludge pyrolysis oven Reacted to fluid bed and activator, can not only ensure that fluid bed directly prepares activated carbon, and energy profit can be significantly improved With rate, and when the stability for utilizing the domestic sludge to prepare activated carbon system.
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 domestic sludge as raw material, prepare activated carbon system using domestic sludge and be prepared activated carbon, domestic sludge system The technique of standby activated carbon system is as shown in Fig. 2 as follows using the method that domestic sludge prepares activated carbon:
(1) domestic sludge of 20 tons of moisture content about 86% is carried out into drying and processing, obtains material of the moisture content less than 40%;
(2) the domestic sludge feeding pyrolysis oven after drying is pyrolyzed, material uniform distribution is on drapery panel, and the bed of material is thick It is 120mm to spend.Heating radiation pipe is provided with the pyrolysis oven, pyrolysis obtains pyrolytic carbon (temperature is about 580 DEG C) and pyrolysis oil gas (temperature is about 650 DEG C), the pyrolytic carbon feeding fluid bed of generation;
(3) the gas mixture feeding for producing pyrolysis cools down and is separated and purified with clean unit, cools down and net Change unit be made up of devices such as indirect cooler, electrical tar precipitator, devulcanizer and deammoniation towers so that obtain cleaning pyrolysis gas and Pyrolytic behavior;
(4) will be burnt in isolated pyrolysis gas feeding burner, burner uses heat-storage type burner, can be by Normal temperature air temperature brings up to 350~400 DEG C, while the flue-gas temperature for producing of burning can be down to 110 DEG C or so;
(5) will be separated in isolated pyrolytic behavior feeding gun barrel, pyrolysis oil and pyrolysis water are obtained respectively;
(6) it is that pyrolysis water heat supply obtains water with pyrolysis oil direct combustion by pyrolysis oil and pyrolysis water feeding steam-boiler device Steam;The vapor that will be obtained is heated in being passed through heat-storage tubular heating furnace, and the water vapor gas temperature after preheating is 840 DEG C or so, in feeding fluid bed.
(7) pyrolytic carbon that the vapor that will be obtained in step (6) is obtained with step (2) is in the reverse haptoreaction of fluid bed Activated carbon is obtained, fluidized-bed reaction temperature control is 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 domestic sludge 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 resource utilization of sludge by said system and method, be 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. a kind of system of rotary pyrolysis processing domestic sludge, the system includes the pyrolyzing sludge stove and the fluidisation that sequentially set Bed, wherein,
Be provided with reative cell in the pyrolyzing sludge stove, hold disk and burner, it is described hold disk be rotationally arranged at it is described anti- The bottom of room is answered, the burner holds the top of disk in the reative cell;Heat is provided with the top of the pyrolyzing sludge stove Solution material inlet and pyrolysis oil gas vent;The bottom of the pyrolyzing sludge stove is provided with pyrolytic carbon outlet;
There is the fluid bed pyrolytic carbon entrance, activator import, gas vent and activated carbon to export, the pyrolytic carbon entrance with The pyrolytic carbon outlet connection of the pyrolyzing sludge stove.
2. system according to claim 1, it is characterised in that multiple gas outlets are provided with the top of the pyrolysis oven.
3. system according to claim 1, it is characterised in that the burner is located at the pyrolyzing sludge reaction in furnace room Top.
4. system according to claim 1, it is characterised in that the activator import connection vapor conveying of the fluid bed Pipeline or carbon dioxide conveyance conduit.
5. system according to claim 1, it is characterised in that the burner is multigroup, and the burner is along the dirt The horizontal direction of mud pyrolysis oven is spaced apart, and burner described in every group can independent control operation.
6. system according to claim 1, it is characterised in that the system is also included located at the pyrolyzing sludge stokehold Pretreatment unit.
7. system according to claim 1, it is characterised in that the system also includes cooling and clean unit, described cold But there is pyrolysis oil gas entrance, pyrolysis gas outlet and pyrolytic behavior outlet, pyrolysis oil gas entrance and the heat with clean unit The pyrolysis oil gas vent for solving stove is connected.
8. system according to claim 7, it is characterised in that the system also includes gun barrel, the profit point It is connected with the pyrolytic behavior outlet of the cooling and clean unit from tank.
CN201621345191.6U 2016-12-08 2016-12-08 A kind of system of rotary pyrolysis processing domestic sludge Active CN206278920U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621345191.6U CN206278920U (en) 2016-12-08 2016-12-08 A kind of system of rotary pyrolysis processing domestic sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621345191.6U CN206278920U (en) 2016-12-08 2016-12-08 A kind of system of rotary pyrolysis processing domestic sludge

Publications (1)

Publication Number Publication Date
CN206278920U true CN206278920U (en) 2017-06-27

Family

ID=59076126

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621345191.6U Active CN206278920U (en) 2016-12-08 2016-12-08 A kind of system of rotary pyrolysis processing domestic sludge

Country Status (1)

Country Link
CN (1) CN206278920U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106698424A (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 rotary pyrolysis treatment of domestic sludge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106698424A (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 rotary pyrolysis treatment of domestic sludge

Similar Documents

Publication Publication Date Title
CN101544901B (en) Method and device for preparing biological oil by biomass cracking
CN205328941U (en) Pyrolysis equipment
CN105778945B (en) It is pyrolyzed the system and method for biomass
CN101289621B (en) Process for preparing carbocoal, coke tar and coal gas by treating bovey coal by suspending pyrogenation device
CN101289622B (en) Process for upgrading of bovey coal by solid thermal-loading suspending pyrogenation device of bovey coal
CN102766475B (en) Method and system for performing drying and dry distillation on fluidized bed pulverized coal based on overheating steam medium
CN105505412B (en) Moving bed pyrolysis reactor
CN206278920U (en) A kind of system of rotary pyrolysis processing domestic sludge
CN105018119B (en) Hot low temperature downlink pyrolysis oven outside fine coal oil shale powder
CN105368472A (en) Pyrolysis apparatus and method
CN206278915U (en) The system that a kind of heat recovery of junked tire prepares activated carbon
CN206278922U (en) The system that a kind of sludge prepares activated carbon
CN106698424A (en) System and method for rotary pyrolysis treatment of domestic sludge
CN206278916U (en) A kind of system of harmless treatment discarded object
CN105802648B (en) Fine coal fast pyrolysis systems
CN206278914U (en) A kind of system for preparing activated carbon
CN205653393U (en) Power generation system
CN202849331U (en) Multi-layer vertical tower fine coal and oil shale destructive distillation production device with stirring
CN205710590U (en) Pyrolysis of coal device and recirculating fluidized bed combined system
CN205635480U (en) Pyrolysis reactor
CN205838913U (en) The system of pyrolysis biomass
CN105885898B (en) One kind is pyrolyzed from dedusting type and catalytic cracking reaction device
CN107903924A (en) A kind of uplink heat accumulating type fine coal fast pyrogenation reaction system and method
CN105802685B (en) A kind of pyrolysis of coal and cracking tube cracking produce gas and combine gas power generation system
CN107937007A (en) A kind of three-stage coal dust and biomass pyrolytic processing system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155

Patentee after: Shenwu science and technology group Limited by Share Ltd

Address before: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155

Patentee before: Beijing Shenwu Environment Energy Technology Group Co., Ltd.

PP01 Preservation of patent right
PP01 Preservation of patent right

Effective date of registration: 20190121

Granted publication date: 20170627