Adopt the damaged tire resource utilization regeneration treatment system of intermittent fever cracker
Technical field
The present invention relates to solid waste resource recovery manipulation of regeneration field, particularly a kind of damaged tire resource utilization regeneration treatment system that adopts the intermittent fever cracker.
Background technology
The damaged tire thermo-cracking is to make its organic constituent generation decomposition reaction by the external heat source heating, obtains then and the similar elementary products such as oil, gas and carbon black of petroleum refining industry's product, obtains industrial chemicals again after further separating purification.The mode classification of damaged tire pyrolysis technology has a variety of, wherein can be divided into external-heat and internal heat type by type of heating, can be divided into common pyrolysis, self-heating pyrolysis, plasma pyrolysis and microwave-heating etc. according to the energy supply mode.The normal at present mode classification that uses is to classify by the reactor types that adopts, and can be divided into fixed bed, fluidized-bed, moving-bed, ablation bed and rotary kiln etc.Various pyrolysis way generally all has its specific purpose, promptly mainly reclaims a certain or two kinds of essential substance in the pyrolysis product.The research of relevant damaged tire thermo-cracking in recent years is more and more, and makes progress.People such as professor Williams of Britain Leeds university have developed the damaged tire fixed-bed reactor, and this reactor is contained in the large container of a lined ceramics, adopt oil-firing burner heating and sealing cover sealing, can carry out the thermo-cracking of broken tire and whole piece tire.But this system can only batch feed, can not move continuously for a long time, and pyrolytical condition easy care not, and the metal tire bone that whole tire cracking the causes problem of twining is not resolved.Units such as Chinese Academy of Sciences Guangzhou Energy Research Institute have carried out the research based on the waste tyre pyrolytic oilization device of circulating fluid bed reactor.Fluidized bed pyrolysis belongs to internal heat type, improved the control of heat transfer condition and temperature, but its splitting gas calorific value is lower, and the sensible heat that generation gas is taken away is many, and thermosteresis is big, realizes in fluidized-bed that simultaneously vacuum operating is also very difficult.Mechanisms such as Italy ENEA research centre have then carried out the rotary kiln pyrogenation systematic research.Compare with fixed bed, fluidized-bed, the reacting in rotary kiln device is more extensive to the adaptability of damaged tire kind, model and geomery.But it is, very high to moving equipment requirements because rotary kiln is to rotate by huge cylindrical shell own to make the continual renovation of material pyrolysis surface reach abundant pyrolysis purpose; Because pyrolysis is carried out at low-oxygen environment, so rotary kiln also must guarantee sealing in rotation, this has increased very big difficulty to device fabrication on the other hand.Bulky owing to rotary kiln in addition, and must be high temperature resistant, so facility investment is bigger.
At present, China on junked tire recycling mode, technically fall behind unlike developed country, main gap is on management, legislation, preferential policy.In management, lack the recovery system of standard, junked tire reclaims the system of main " recoverys-transportation-simply process-collecting and distributing " by the spontaneous formation of ragpicker of going down town at present; On legislation and preferential policy, lack relevant laws rules and compensation mechanism such as economic incentive, preferential policy at junked tire reclaims, processing treatment is utilized again.The industrial structure is unreasonable simultaneously, lacks technical requirements and technological standard that the damaged tire processing treatment prevents secondary pollution, and processing treatment enterprise secondary pollutions such as local method oil refining, small-scale production reclaimed rubber are serious.Especially local method is refined oil this illegal industry of rising in recent years, adopt simple and easy cylindrical structure cleavage column, to obtain oil product is purpose, the combustible gas that do not coagulate of carcinogenic gases such as a large amount of sulfide hydrogens that cracking is produced, sulfurous gas directly is discharged in the atmosphere, open-air simultaneously operation, carbon powder dust is seriously polluted, and vegetation was destroyed around arbitrarily the poisonous and harmful waste residue of stacking made refinery, and soil and water source are also by severe contamination.
Therefore, under the severe situation that junked tire quantity increases severely at present, the not only tax-free but also tax rate is higher than other processing industries to junked tire in present China, not only there is not subsidy, and junked tire need be given a long price for, need outsourcing, under the unequal adverse environment on this policy, the damaged tire intermittent fever cracker and the resource utilization regeneration treatment system thereof of the cleanliness without any pollution that cost of development is cheap relatively are significant.
Summary of the invention
The purpose of this invention is to provide a kind of damaged tire resource utilization regeneration treatment system that adopts the intermittent fever cracker, it can be cracked into junked tire useful products such as carbon black, oil fuel and combustible gas fully, and is environmentally friendly, cleanliness without any pollution.
The technical solution adopted for the present invention to solve the technical problems is:
Comprise combustion chamber, a plurality of damaged tire intermittent fever cracker, two condensers, waste heat boiler, storage tank, gas-holder, gas cylinder, well heater, distillation tower and valves and connecting tube.The combustion chamber through total valve and and the sub-valve that connects and the smoke inlet pipe coupling of each damaged tire intermittent fever cracker, the smoke outlet tube of damaged tire intermittent fever cracker in parallel connects waste heat boiler, and flue gas is introduced into first import of combustion chamber again after the waste heat boiler heat absorption; The air outlet that the splitting gas outlet pipe warp of damaged tire intermittent fever cracker in parallel and the valve that connects connect condenser first condenser and second condenser respectively connects gas-holder, an outlet of gas-holder links to each other with second import of combustion chamber, the oil outlet of first condenser and second condenser is connected in series with well heater and distillation tower after connecing storage tank successively, and distillation tower has gas outlet, light oil outlet and residual oil mouth; The 3rd import of combustion chamber connects air.
Described each damaged tire intermittent fever cracker constitutes closed cavity by cylindrical tube, oval deck and flat underside, cavity bottom is provided with support and holds the hanging basket of tire and solid product thereof, wherein the bottommost hanging basket is the uncovered basket with welded steel plate, and other hanging baskets are the screen baskets with reinforcing bar weldering system; The cylindrical tube outside has conventional jacket, constitutes high-temperature flue gas mobile spirality channel; The cylindrical tube bottom is provided with the smoke inlet pipe, and top is provided with smoke outlet tube, and the top oval deck is provided with the splitting gas outlet pipe.
The tooth bridle joint head seedpod of the lotus shower nozzle that can open fast is equipped with in described oval deck central authorities.
Described cylindrical tube upper edge is along being welded with uncovered half circle groove, and inner filling water is realized system sealing jointly with the oval deck that is dipped in the water.
Damaged tire local method oil Refining Technologies of mentioning in the present invention and the background technology and damaged tire Continuous Heat cracker are compared the beneficial effect that has and are:
(1) manufacturing cost and running cost are cheap: the intermittent fever cracker among the present invention is simple in structure, adopts the conventional jacket heating, does not relate to the dynamic seal problem, and is cheap for manufacturing cost; Periodical operation simultaneously, whole piece tire can cracking, need not pulverize, and therefore saved the pre-treatment cutting machine that continuous operation must be equipped with, and facility investment reduces greatly; In addition, the non-condensable gas that the damaged tire resource utilization regeneration treatment system employing among the present invention self cracking produces is as thermal source, and easy to operate, labour intensity is little, and the manpower consumption is few, so running cost is lower.But because the intermittent fever cracker of this system adopts resistant to elevated temperatures stainless steel manufacturing, be 4~5 times of local method refining stove work-ing life;
(2) cleanliness without any pollution: intermittent fever pyrolyzer top has the half circle groove of full of liquid, cooperates with the top oval deck to realize static seal, and operational process does not have splitting gas and leaks; When lytic cycle finishes, can sprinkle water cooling and then discharging process no dust pollution of the seedpod of the lotus shower nozzle on the oval deck of top simultaneously.In addition, the combustible gas that do not coagulate that cracking produces all is imported into the gas-holder buffering, then sends into combustion chambers burn, for waste tyre pyrolytic provides heating agent, can not produce thermal pollution to environment.
(3) reasonable energy utilization: the damaged tire resource utilization regeneration treatment system among the present invention utilizes the products of combustion of self splitting gas that heat is provided, feasible system energy self-sufficient; And still temperature is higher after pyrolyzer is discharged by the stack gas of absorbing and cooling temperature, therefore is introduced into waste heat boiler again, can obtain the required hot water of productive life;
(4) the product quality is higher, benefit is obvious: the damaged tire resource utilization regeneration treatment system that adopts the intermittent fever cracker, cracked oil in depositing in storage tank has applied reodorant and antithrombotics, carried out the fractionation by distillation operation afterwards again, lightweight useful components such as the benzene that content is higher, toluene and dimethylbenzene are separated as industrial chemicals, improved the product added value, economic benefit is obvious.
Description of drawings
Fig. 1 is the structural representation that adopts the damaged tire resource utilization regeneration treatment system of intermittent fever cracker;
Fig. 2 is a damaged tire intermittent fever cracker structural representation.
Among the figure: 1, combustion chamber, 2, damaged tire intermittent fever cracker, 2.1, flat underside, 2.2, the smoke inlet pipe, 2.3, cylindrical tube, 2.4, chuck, 2.5, screen basket, 2.6, uncovered half circle groove, 2.7, oval deck, 2.8, seedpod of the lotus shower nozzle, 2.9, the splitting gas outlet pipe, 2.10, smoke outlet tube, 2.11, uncovered basket, 2.12, support, 3-1,3-2, condenser, 4, waste heat boiler, 5, storage tank, 6, gas-holder, 7, gas cylinder, 8, well heater, 9, distillation tower.
Embodiment
As shown in Figure 1, the present invention includes combustion chamber 1, a plurality of damaged tire intermittent fever crackers 2, two condenser 3-1,3-2, waste heat boiler 4, storage tank 5, gas-holder 6, gas cylinder 7, well heater 8, distillation tower 9 and valve and connecting tube.Combustion chamber 1 is connected with the smoke inlet pipe 2.2 of each damaged tire intermittent fever cracker 2 through the sub-valve that total valve reaches and connects, the smoke outlet tube 2.10 of damaged tire intermittent fever cracker 2 in parallel connects waste heat boiler 4, and flue gas is introduced into first import of combustion chamber 1 again after waste heat boiler 4 heat absorptions; The air outlet that splitting gas outlet pipe 2.9 warps of damaged tire intermittent fever cracker 2 in parallel and the valve that connects meet the condenser 3 first condenser 3-1 and the second condenser 3-2 respectively connects gas-holder 6, an outlet of gas-holder 6 links to each other with second import of combustion chamber 1, the oil outlet of the first condenser 3-1 and the second condenser 3-2 is connected in series with well heater 8 and distillation tower 9 after connecing storage tank 5 successively, and distillation tower 9 has gas outlet, light oil outlet and residual oil mouth; The 3rd import of combustion chamber connects air.
As shown in Figure 2, described each damaged tire intermittent fever cracker 2 constitutes closed cavity by cylindrical tube 2.3, oval deck 2.7 and flat underside 2.1, cavity bottom is provided with support 2.12 and holds the hanging basket of tire and solid product thereof, wherein the bottommost hanging basket is the uncovered basket 2.11 with welded steel plate, and other hanging baskets are the screen baskets 2.5 with reinforcing bar weldering system; Cylindrical tube 2.3 outsides have conventional jacket 2.4, constitute high-temperature flue gas mobile spirality channel; Cylindrical tube 2.3 bottoms are provided with smoke inlet pipe 2.2, and top is provided with smoke outlet tube 2.10, and top oval deck 2.7 is provided with splitting gas outlet pipe 2.9.
The tooth bridle joint head seedpod of the lotus shower nozzle 2.8 that can open fast is equipped with in described oval deck 2.7 central authorities, and it is closed at cracking process, and watering was to realize the quick cooling of cracking black carbon when lytic cycle finished.
Described cylindrical tube 2.3 upper edge are along being welded with uncovered half circle groove 2.6, and inner filling water is with the oval deck 2.7 common system sealings of realizing that are dipped in the water.
In the operational process, at first damaged tire is put into the damaged tire intermittent fever cracker 2 of annular distribution, removed residual oxygen in the reactive system with nitrogen flooding then, and adopt oil-firing burner that it is heated, along with pyrolytic carries out, oil fuel just replaces with the combustible gas products of combustion that do not coagulate that pyrolysis goes out.The gaseous state split product that is evaporated in the reaction process feeds condenser 3-1 and condenser 3-2 cooling, isolates non-condensable gas and cracked oil.Non-condensable gas is collected in gas-holder 6, and part feeding gas cylinder 7 carries out packing and utilizes, and another part then feeds combustion chamber 1 and uses as heating agent fuel.Cracked oil heater via 8 heating backs feed distillation tower 9 and distill, and the water reflux cooling is separated into cracked oil useful industrial chemicals such as residual oil, diesel oil, gasoline and benzene,toluene,xylene.The solid product that cracking produces obtains products such as steel wire, carbon black through further processing such as magnetic separation.In addition, the effluent gas temperature of pyrolyzer outlet still has about 400 ℃, is passed into waste heat boiler 4 and carries out heat and utilize, and a part is introduced combustion chamber 1 and participated in burning afterwards, improves energy utilization rate, and another part is directly emptying then.