CN101428711A - Cooling system for carpet/wood ash - Google Patents
Cooling system for carpet/wood ash Download PDFInfo
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- CN101428711A CN101428711A CNA2008101277340A CN200810127734A CN101428711A CN 101428711 A CN101428711 A CN 101428711A CN A2008101277340 A CNA2008101277340 A CN A2008101277340A CN 200810127734 A CN200810127734 A CN 200810127734A CN 101428711 A CN101428711 A CN 101428711A
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- waste products
- ash
- gasification
- nitrogen
- memory cell
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
- F23G7/105—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses of wood waste
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
- F23J2900/01003—Ash crushing means associated with ash removal means
Abstract
A method and system transfer, cool, store, and load an ash waste product of a gasification process. Hot ash is moved toward a storage silo via one or more augers and/or conveyors. Ash may be sent through a means for reducing the size of any ash chucks, such as roller crushers. The ash may be transferred via a first auger affixed with a glycol/water indirect cooling means. The ash may then be transferred to a second auger, also having a glycol/water indirect cooling means, but further being operable to blanket the ash with an inert gas, such as slightly pressurized nitrogen. Then, the ash may be transferred to a storage silo via a continuous flow bucket conveyor. The silo and conveyor may be operable to maintain the ash blanketed with inert gas. Subsequently, the ash may be unloaded from the silo, such as into a vehicle, via a retractable spout.
Description
The cross reference of preceence and related application
The application require to enjoy according to 35U.S.C § 119 (e) submit to interim Application No. be 60/938, the applying date of 310 applications, the applying date of this application is on May 16th, 2007, denomination of invention is the cooling system ＂ of ＂ carpet ash/wood ash, and this application comprises in this application as a reference.
Technical field
Present invention generally relates to the generation of energy.More particularly, the present invention relates to the method and system of the ash that produces in a kind of transmission, cooling, storage and unloading gasification or other thermal conversion processes.
Background technology
Thermal conversion processes may produce reluctant waste products.An exemplary thermal conversion processes is gasification.Gasification is the process that the solid of carbon containing or other biomass fuel is transformed into synthesis gas.In this course, can residues of combustion " synthesize " gas and generate steam.
Gasification may produce ash.Ash can fall and comprise a large amount of carbon from the bottom of gasifier, these carbon make some easy burning of ash.Ash can comprise the indefinite calcium oxide of quantity, and calcium oxide and water carry out exothermal reaction together.When gasifier temperature during at least at 1600 ℉, ash can at high temperature break away from gasifier.In the representative type biomass gasification system, can be sprayed onto the temperature that subtracts ash on the ash to water.If do not allow ash reach enough moistening and/or enough coolings, because the high-carbon content of ash, ash may smoulder and/or light.
Draw several problems from the ash treatment system of known spray water, comprise the problem that those are directly confirmed hereinafter.
1. when water is sprayed on the ash, can produce the mortar of similar mud.Mortar can form on the various piece of equipment, comprises the inside of ash or other waste products bunker, and final hardening.The formation of mortar has reduced the effective dimensions of transportation and storage equipment, and has stoped rotation or mobile device.
2. when water is sprayed at grey going up, exothermal reaction may take place, refire the unburned carbon in the ash stream.
3. when water is not added to system, can comprise the grey piece (for example at the carpet fiber that uses useless carpet as the fusing in the situation of biomass fuel) of the biomass fuel of carbon, calcium oxide and polylith fusing, can in introducing grey bunker, continue to smoulder afterwards.This can light other the unburned carbon in the ash stream once more.
4. when ash is discharged in the canopy truck from bunker: (a) a large amount of hot ashes can be propagated air, produce serious dust disaster and greatly reduce visbility in grey uninstall process; (b) heat in the wet ash, malaria can discharge from the truck opening, generation has dangerous very hot gas stream (for the Systems Operator, steam itself can be a kind of danger of combustion, and when when bunker is unloaded to ash in the truck, steam can further reduce visbility); (c) during the ash unloading, ash can be lighted in bunker and when it enters the truck storage tank by bunker, produces the danger of burning in grey uninstall process.
Summary of the invention
Specific embodiments of the invention provide the method and system of the waste products of a kind of transmission, cooling, storage and unloading thermal conversion processes.For example, described method and system can be accommodated the grey waste products of gasification.The hot ash of receiving can move to bunker by one or more auger loaders and/or belt conveyor.Ash can transmit by a kind of device that reduces any grey chuck size, for example roll crusher or roll crusher.Ash can be at first by being provided with first auger loader transmission of indirect glycol/water cooling mechanism.Ash can transfer to second auger loader then, and second auger loader also has indirect glycol/water cooling mechanism, but can further operate ash is covered with unreactable gas, for example is the nitrogen that pressurizes a little.Second auger loader can be transferred to ash the bucket carrier of continous way, and bucket carrier is delivered to bunker to ash successively.Bunker and bucket carrier also all be can move come repair and maintenance to hold ash is covered with unreactable gas.
Subsequently, ash can unload from bunker by contractile jet pipe, for example is unloaded in the compartment.Can use various safe numerical value to guarantee safe operation.In a specific embodiment, gasification only accepts carpet waste and timber acts as a fuel.For example, gasification system can be transformed into product steam to the carpet waste of industry and wood chip/waste log, and for example on February 7th, 2005, disclosed application number was 11/052,634 U.S. Patent application, and its full content comprises in this application as a reference.Carpet can shred and wood chip and/or mixing of other waste material and gasification.
An aspect, a kind of method of transmitting the waste products of thermal conversion processes generation.Described method is included in unreactable gas and covers down, the waste products of transmission and/or storage gasification.
In yet another aspect, a kind of method of transmitting thermal conversion processes generation waste products.Described method comprises the waste products with roll crusher crushing hot conversion process, covers waste products and with the bucket carrier of continous way waste products is transferred to memory storage with unreactable gas.
In yet another aspect, a kind of system of transmitting the waste products of thermal conversion processes generation.Described system comprise be used for the crushing hot conversion process waste products roll crusher and cover the device of waste products with unreactable gas.
Concerning those skilled in the art, by showing and casehistory is described the following content of preferred embodiment of the present invention, advantage of the present invention will become more obvious.Should be realized that the present invention is that can have other with different specific embodiments with can carry out the improvement of details aspect various.Therefore, drawing and description are thought illustrative in itself, do not have restricted.
Description of drawings
Fig. 1 and 1a are the scheme drawings of the transmission of exemplary ash, cooling, storage and uninstalling system.
Fig. 2 and 2a are the scheme drawings of another exemplary ash transmission, cooling, storage and uninstalling system.
Fig. 3 is the scheme drawing of an exemplary nitrogen production and memory system; With
Fig. 4 is a block flow diagram that transmits, cools off, stores and be discharged in the specific embodiment of the waste products that thermal conversion processes produces.
The specific embodiment
Specific embodiments of the invention provide the method and system of the waste products in a kind of transmission, cooling, storage and the unloading thermal conversion processes.In a specific embodiment, thermal conversion processes is that gasification and waste products are the ashes that is produced by gasification.In another specific embodiment, the biomass fuel that uses in gasification is the compound of carpet waste and wood chip, and for example U. S. application number 11/052,634 is described.
I. exemplary thermal conversion processes and biomass fuel
Gasification can be used for producing steam, for example is fit to the employed steam of steam turbine.Gasification is (surpassing 1, the 000 ℉) synthesis gas that the solid biomass fuel thermal cross over is become to comprise the heat of fire gases, and fire gases is methane, hydrogen, carbonic oxide and/or other gas for example.In gasification, or solid biomass fuel converts in the gas process, may not have the oxygen of sufficient amount that living beings are fully burnt.
The purpose of gasification is compared with operating condition with the purpose of incinerator with final process operating mode can be significantly different.In incinerator, the purpose solid feed within incinerator that is fully to burn.On the other hand, the purpose of gasification is to be created in the gas that use in the place beyond the gasifier, and the control gasifier discharges and improves any influence to environment.In addition, the ash that produces in the gasification is being handled in garbage bury subsequently as side production, and it is the employed gasification of dependence of inertia biologically, or is not a large amount of toxin sources at least.Gasification can cause wide variety of materials to reduce, and reduce in such so that garbage bury space that needs.Therefore gasification can have many environmental benefits.
In one aspect, textile material has backing, and for example carpet can be used as the biomass fuel that gasifies.The term ＂ carpet ＂ that uses among the application can comprise and anyly become article by the material manufacture of at least two kinds of different types, and a kind of material is that fabric or other coating and another kind of material are synthetic materiaies, for example rubber or poly-mer.For example, the ground carpet that can comprise standard of the scope of carpet, ground mats, wallcovering, mat or the like, and the carpet waste of industry with separate the carpet waste after the already used consumption.
Can provide carpet waste with the form of harness to system.General, harness is to reduce the end product that material occupies the compression process of volume by increasing density and weight.Harness is typically to tie with belt or wire rod to prevent the separation of harness material.Harness can be shape rectangle, square, circle or that have other.The harness carpet can be so that transporting and moving of waste material carpet becomes easy.Garbage bury owner and/or operator also can provide the carpet harness to reduce the power of the required volume of garbage bury.Selectable, carpet is a loosely, is not compact.
Carpet waste can be the chopping and basically or major part be divided into carpet chip and carpet fiber.For the carpet originating firm, the carpet chip has the value of raw material, and the carpet chip is deletrious for gasification, because almost there is not the actv. calorific value.Therefore, the carpet chip removes and stores and can have economic, benefit environment and/or process and be worth.Main carpet chip can move to first bunker of storage in first waste products stream.Main carpet fiber can be used as biomass fuel, and is independent or partially mixed with another biomass fuel.Can use biomass fuel to produce synthesis gas and the heat ash that produces as side production by gasifier.Subsequently, synthesis gas may be used for producing generating, for example passes through in gas turbine or synthesis gas burner section and the boiler any one.
The ash that is produced by gasification can move in second waste products stream, moves to second bunker of storage usefulness.The described first and second waste products streams can be different, main like this flowing the carpet chip of isolating and flow the ash of isolating with second waste products with first waste products keeps independently state at least always, is cooled to up to ash till the fusing point of about carpet chip.
Use carpet waste can produce many benefits as the biomass fuel of gasification.For example, the use that produces the waste material carpet of suitable steam can reduce the dependence to other energy, for example coal and natural fuels, and it is restricted in supply side.In addition, between pneumatolytic stage, expend quite most of waste material carpet and act as a fuel and to reduce the cumulative volume of the waste material carpet product that finally is buried in the rubbish.Therefore, the present invention can provide the steam generation process of routine or the environmental benefit that carpet processing method kind is lacked.
Application number is the exemplary scheme drawing that 11/052,634 U.S. Patent application has been showed gasification system.
II. exemplary transmission, cooling, storage and uninstalling system
The specific embodiment of the invention relates to and does not a kind ofly have or do not have under the sprinkling situation of water, can transmit, cools off, stores and unload the method and system of ash safely.In initial grey auger loader, ash can utilize to have the auger loader with screw auger with central aisle that cold glycol/water mixtures passes through and cools off indirectly, ash passes through roll crusher or roll crusher then, roll crusher or roll crusher fragmentation the ashes of smouldering.Rotary air lock can allow the components downstream of system to pressurize with nitrogen or other unreactable gas.The second cooling spiral conveyer can be the transmission ash in continuous chain bucket elevator, and chain bucket elevator can directly or indirectly move ash or move in the bunker to the bunker direction.The second ash cooling auger loader, chain bucket elevator and bunker can be used unreactable gas, and for example nitrogen covers.
Be used for ash is delivered to from gasifier two auger loaders spent glycol/aqueous mixtures cooling indirectly of bunker.It is known using conventional glycol/water to come indirect cooling screw auger loader to handle industry at raw material, and can use.
The indirect cooling spiral conveyer of first glycol/water can remain on the ambient pressure or the state of negative pressure a little.First auger loader can be used for cooling off abundant ash so that ash can be discharged in the rotary air lock and/or roll crusher in.On the one hand, first auger loader can be a roll crusher to the rotary air lock feed then.Selectable, the equipment order can change, and roll crusher can be arranged on the front and be the most preceding in system like this, and ensuing is rotary air lock.
The purpose of roll crusher is broken any ashes of smouldering, and allows ashes to be extinguished by nitrogen or other unreactable gas, covering system before the arrival bunker.Roll crusher can be two-roll crusher and be made up of a pair of steel rider that steel rider by about 1/4 inch slit separately.Selectable, roll crusher can adopt bigger or less slit.Can fix for one in two rollers, another can be installed on the stiffness spring, and like this at non-crushable material or article, for example the steel bolt moves through under the situation of system, provides some to slow down load or mobile.
Roll crusher can be placed on before the vent plug.If roll crusher is in the nitrogen supercharging district, two rollers can fix in position.For example, if a roller allows to move, nitrogen leaks out along the axle of that roller then.By roll crusher being arranged on the nitrogen pressor areas outside (front) of ash system, second roller can move under the situation that does not have the nitrogen seepage.
After roll crusher, ash can move through rotary air lock.Remaining grey transportation, storage and uninstalling system can be at least a little with nitrogen or the pressurization of other unreactable gas, eliminate and/or reduce the ash of smouldering and/or burning.Nitrogen or other unreactable gas can be in system in each some place drawing-in systems.On the one hand, nitrogen is incorporated into second glycol/water conveyor screw, chain bucket elevator and the bunker of cooling indirectly.
In case ash is through rotary air lock, ash can be transported to chain bucket elevator by helical conveyor/auger loader that second glycol/water is cooled off indirectly.Second conveyer can further cool off ash.
Chain bucket elevator can be the chain bucket elevator of continuous flowing type, rather than centrifugal chain bucket elevator.Centrifugal chain bucket elevator can very rapidly move and the sling outer product of scraper bowl and entering in the discharge chute.This process can stir ash and increase the possibility of grey burning.On the other hand, continuous chain bucket elevator can move more lentamente, makes whole bucket tilt and allow by gravity it to be turned.Continuous chain bucket elevator can make in the bunker quantity of airborne ash reach and minimize, and reduces the possibility of bunker internal combustion.
The specific embodiment of the invention comprises that also a kind of improvement bunker uninstall process and equipment guarantees that ash can be safely enter in the sealing truck from bunker.When in the lorry compartment of ash below bunker moves to, can exempt the bunker uninstall process, just, the sprinkling of water that need not be final.Alternative, system and method can comprise the contractile jet pipe that has between the annular row clearancen.Contractile pipe in pipe can reach truck from the bottom of bunker.Dry ash can fall into truck by the base pipe of jet pipe.When ash landed, the annular space that centers on pipe can suck truck outer nitrogen and AIR MIXTURES, carries out pressure release.The use of the contractile jet pipe of this class can be eliminated previous when ash is loaded into truck, the problem that dust is blown off from truck.The bag room dust collecting fan can be removed the ash in this air-flow.Can utilize nitrogen to come pulse or shake bag, so that the covering of the nitrogen of protectiveness extends to bag house always.
Before the ash unloading, the leak free truck container can be used nitrogen purge a period of time, for example about ten minutes.Nitrogen purge can guarantee when ash is loaded in the lorry compartment almost there is not oxygen in lorry compartment.When lorry compartment fills up, nitrogen purge and be accompanied by the possibility of focus that removing of oxygen can be reduced any residue ashes or be lighted ash.
For because any reason can not be easily with any ash of water spray system cooling, this grey cooling system can work smoothly.Pulverous ash will produce the coating of similar plaster on equipment when getting wet, or ash has in addition to get rid of and make the chemistry of water sprinkler system or the restriction of physics aspect, can both benefit from this grey cooling method.
Therefore, the specific embodiment of the invention is provided by the combination of the uniqueness of the following equipment that is provided, equipment comprises: (1) roll crusher, the nitrogen of (2) or all or part of ash system covers bucket carrier of (3) continous way and the jet pipe of (4) contractile ash.The specific embodiment of the invention can be simultaneously and in various combinations this equipment of operation handle the cooling and the storage condition of ash.
III. exemplary ash storage and transmission
Fig. 1 has showed exemplary waste products transmission, cooling, storage and a Load System 100.Described system 100 can comprise bucket carrier 108, bunker 110 and the nitrogen supply (NS) system 122 of grey conveyer 102, first auger loader 104, second auger loader 106, continous way.Described system can comprise additional, a spot of or standby parts.
Described grey conveyer 102 can be accommodated the ash of gasification generation and ash is transferred to first auger loader 104.First auger loader 104 can be the first grey auger loader.Water/the ethylene glycol mixture of cooling can be through the center of screw auger, and therefore the ash of auger loader 104 is passed in cooling.
After through vent plug 118 and roll crusher 120, ash can transfer to second auger loader 106.Second auger loader 106 can be the second grey auger loader.Picture first auger loader 104, the water of cooling/ethylene glycol mixture are through the center of screw auger, and therefore the ash of second auger loader 106 is passed in cooling.Selectable, the glycol/water mixtures of cooling can be passed through and second auger loader, 106 bonded assembly outer jacket or sleeves.Second auger loader 106 can be used nitrogen pressure a little, for example reaches several in W. G.s and comes to replace oxygen with nitrogen, suffocates the ashes of any burning.On the one hand, nitrogen is as non-burning gases.Can use other unreactable gas, for example carbon dioxide, neon, helium, argon, krypton, xenon, radon, noble gas or other the exercisable gas of replacing oxygen.Here the term inert gas of Ying Yonging comprises noble gas.Can use the non-burning gases of any feasible replacement oxygen.
As shown in the figure, can provide the supply 114 of cooling glycol/water and the backhaul 116 of cooling glycol/water.Supplying with 114 can be sent to the cooling glycol/water in the one 104 or the 2 106 auger loader within any one or two s' the cylindrical central sleeve (or external jacket of selectable inner periphery).Backhaul 116 can receive the glycol/water of the remaining cooling of the one 104 and/or the 2 106 auger loader.Can offer second auger loader 106 to nitrogen 122 or other inertia branch/noble gas.
Reducing valve 124 can be arranged on the top of chain bucket elevator 108.Under high-voltage situation, described reducing valve 124 has been considered the decompression of safe pressure.
Ash can be directly by chain bucket elevator 108 or transfer to grey bunker 110 by intermediate haulage conveyor/auger loader 132 indirectly.Ash bunker 110 can be used nitrogen supercharging by nitrogen supply (NS) 122 a little.Ash bunker 110 can have the emergent reducing valve 130 that is located on or near bunker 110 tops.If high-voltage situation occurs in bunker 110, reducing valve 130 can guarantee to pass through safely the top discharge pressure of bunker 110.
The bottom of bunker 110 can unload jet pipe 134 with ash and link to each other.Ash considered by unloading jet pipe 134 or other waste products is clean, safety and easy of the bunker discharge, enters in grey container or other the container 112.Unloading jet pipe 134 is contractile and can comprises between an annular row clearancen.In a specific embodiment, in use, jet pipe 134 can be used as that contractile pipe in pipe works and can reach from the bottom of bunker in the truck storage tank.Dry ash can fall into the truck storage tank by the base pipe of jet pipe 134.When ash lands, can discharge for example gas of nitrogen and AIR MIXTURES in the outside of truck storage tank around the annular space of base pipe, reduce pressure and gaseous emission in atmosphere.
Unloading jet pipe 134 can have a continuous dust collecting fan 136.Dust collecting fan 136 can absorb through the reduced pressure air of unloading jet pipe 134 and remove suspended particles in the reduced pressure air.
Nitrogen supply (NS) 122 pipelines can comprise the fire-fighting technique of various consumption nitrogen.These can comprise the nitrogen pipeline that extends to various dust collecting fan bags.Because dust collecting fan can preferably use compressed nitrogen cleaning filter bag to replace pressurized air in the nitrogen supercharging district.
Before the ash unloading, nitrogen supply (NS) 122 pipelines extend to the direction that truck purifies, and fill grey container with nitrogen before the ash unloading.Notice that this pipeline can receive high pressure or low-pressure nitrogen.Another nitrogen supply (NS) 122 pipelines can extend to the direction of roll crusher, with nitrogen pair roller type crusher and the pressurization of ash cooling auger loader.Another nitrogen supply (NS) 122 pipelines can extend to grey chain bucket elevator direction, with nitrogen chain bucket elevator and ash cooling auger loader are pressurizeed.Many nitrogen supply (NS) 122 pipelines, can extend to come with nitrogen grey bunker 110 pressurizations to grey bunker 110 directions by for example four or more.
In a specific embodiment, can operate grey conveyer 102, first auger loader 104, second auger loader 106, rotary air lock 118, double-roll type crusher 120 and chain bucket elevator 108 with 2, the speed of 0001bs/hr transmission ash.Roll crusher 120 can be used 20 horsepowers, 1, the motor of 800rpm.Rotary air lock 118 can use 1.5 horsepowers, 1, the motor of 800rpm.In first and second auger loaders 104,106 each can be used 5 horsepowers, 1, the motor of 800rpm.Chain bucket elevator 108 can use 3 horsepowers, 1, the motor of 800rpm.Ash bunker 110 has 12 feet diameter and 25 feet length, and the storage of 3,000 cub fts is provided.Exhaust vent plug 134 is with 28, and the speed of 000lb/hr is discharged ash.Discharge rotary air lock 134 and can use 2 horsepowers, 1, the motor of 800rpm.The dust collecting fan 132 of vibration has 1.0 horsepowers of bonded assemblys, 3, the motor of 500rpm.
Fig. 2 has showed another exemplary waste products transmission, cooling, storage and uninstalling system 200.Especially, how another example view of the physical location of Fig. 2 presentation device different piece and transmission, cooling, storage and uninstalling system parts can be incorporated in the gasification system/interconnect with gasification system.System 200 can comprise memory storage 202, conveyer 204, gasifier 206, starts burner section 208, vent stack 210, pipe 212, swirler 214, second conveyer 216, first auger loader 218, vent plug 220, roll crusher 222, second auger loader 224, continuous conveyer 226, memory storage 228, second vent plug 230 and unloading jet pipe 232.Described system can comprise interconnected inert gas system (not showing).System can comprise additional, a spot of or standby parts.
Biomass fuel can be stored in the memory storage 202 and enter and start in the burner section 208 interconnected gasifiers 206 by conveyer 204 transmission.Gasifier 206 can have vent stack 210 and lead to the pipe 212 of swirler 214.Swirler 214 is transported to grey waste products in conveyer or the auger loader 216.Conveyer or auger loader 216 can transfer to first auger loader, 218, the first auger loaders 218 to ash and be connected with roll crusher 222 with vent plug 220.Fig. 2 and 2a have showed that together the order of vent plug 220 and roll crusher 222 is interchangeable.In a preferred embodiment, roll crusher 222 is arranged on before the vent plug 220.
After ash left first auger loader 218 and passes through roll crusher 222, ash can be delivered to second auger loader 224.In the downstream of vent plug 220, system covers ash with nitrogen or other unreactable gas.Second auger loader 224 can carry ash to chain bucket elevator 226, and chain bucket elevator 226 transfers to bunker 228 to ash successively.Bunker 228 can have second vent plug 230, and the ashes in the bunker 228 are exposed, so that pressurized nitrogen or other unreactable gas a little.The bottom of bunker 228 can be connected with contractile unloading jet pipe 232.
IV. exemplary nitrogen system
Fig. 3 has showed exemplary nitrogen gas generation and memory system 300.System 300 can comprise nitrogen gas generator 302, dryer/filter 304, receptor 306, trapdoor 308, compressor reducer 310 and groove 312.Nitrogen system can comprise additional, a spot of or standby parts.Though Fig. 3 has showed the associated nitrogen production design of plant in an aspect with the specific embodiment of the invention, should be understood that to produce nitrogen or any other any method of unreactable gas can be used.For example, unreactable gas can be bought there and be stored in the interconnective storage tank of transmission, cooling, storage and uninstalling system of the waste products of using subsequently from supplier.
V. exemplary method
Fig. 4 has showed the exemplary method of the waste products of a kind of transmission, cooling, storage and unloading thermal conversion processes 400.Method 400 can comprise the roller of broken waste products 402, cover the intrasystem waste products of at least a portion with unreactable gas 404, bucket carrier 406 by continous way transmits intrasystem waste products to memory cell, and/or by the waste products unloading of contractile jet pipe 408 with memory cell.Specific embodiment and parts that described method can utilize prior figures 1-3 to discuss are realized.Described method can comprise additional, a spot of or standby step.
Transmission and cooling, storage and/or the discharged method of gasification waste products in one aspect, are provided along with waste products is covered by unreactable gas.Method can comprise with the broken waste products of roll crusher, replaces oxygen by near the unreactable gas that is used in the waste products like this, thereby is convenient to extinguish smouldering in waste products.Thereafter, method can comprise that (1) is transferred to memory storage and (2) to waste products subsequently with the bucket carrier of continous way, unloads waste products by contractile jet pipe from memory cell.Waste products can unload from memory cell, enters within the portable container, for example truck or railcar.The unloading before, unloading during and/or the unloading after, the movable type container can be under other overplate of unreactable gas.
Described method can be included in the indirect auger loader that cools off of one or more glycol/water mixtures and use inert gas blanket, the waste products that the auger loader cooling is being transmitted.In the specific embodiment of described method, unreactable gas is a nitrogen.Other gas also can use.
Another specific embodiment of described method can comprise with the waste products of roll crusher crushing hot conversion process, cover waste products with unreactable gas, and/or with the bucket carrier of continous way waste products is transferred to memory cell.Described method can comprise by contractile jet pipe and unloads waste products from memory cell.Inert gas blanket can be used for the waste products at the indirect cooling spiral conveyer of glycol/water mixtures, the waste products in the auger loader cooling transmission.That can select or other, during the memory cell unloading and/or during being stored in memory cell, waste products can be placed on inert gas blanket below, waste products is at unloading and/or memory period like this, when near the oxygen the waste products is replaced, stop any waste products smoulder or ashes are lighted.
Described method and system can use the device that covers waste products with unreactable gas, for example transmit waste products and cover waste products with unreactable gas with one or more conveyers and/or auger loader, memory cell covers waste products with unreactable gas, and/or portable container covers waste products with unreactable gas.
Though described above-mentioned specific embodiment, also had the multiple possible apparatus that can design and utilize.For example, the synthesis gas that generates by gasifier shown in Figure 2 can be in the burning of first subordinate phase, and flue gas guides to boiler and produces medium or HCS.HCS can be used for driving steam turbine then and generate electricity.Selectable, the burning of the clean synthesis gas in automotive gas turbine also can be generated electricity.
On the one hand, during gasification, described method can use carpet waste and wood chip as biomass fuel.Described method can comprise adjusting to have the textile material size of backing, for example by chopping, cutting, tear or the polishing fabric material, the textile material of chopping or adjustment size is separated into the fabric and the backing part of composition, backing partly is stored in first memory cell, fabric portions is stored in the 3rd storage, selectable another kind of biomass fuel part of fuel is stored in the 4th memory storage, selectable another kind of biomass fuel part is mixed with fabric portions, the gasification fabric portions also is stored in second memory storage to the ash of gasification generation as side production.Described method can have other variation, comprises that those use less, additional or standby step.
In a specific embodiment, the textile material that carpet or other is had backing is as the biomass fuel part, and for example U. S. application number is that 11 052,634 patent application is disclosed, and its full content comprises in this application as a reference.Textile material is shredded and is divided into basically the backing and the fabric portions of composition.Backing partly is kept at first memory storage.Be incorporated into before the gasifier, fabric portions and other biomass fuel are partially mixed.Gasifier produces synthesis gas, and synthesis gas is used for producing steam subsequently.The hot ash that produces as the gasification side production is stored in second memory storage.Each waste products can be restricted to different waste path, and waste products keeps isolated condition mutually like this, at least till the temperature of ash is cooled to the fusing point of about backing part.
In other specific embodiment, method can comprise provides the textile material with backing, carpet for example, biomass fuel as gasification, with the carpet chopping or size adjusting is the fragment of an about sq in, for example, basically the carpet of chopping is separated into or is divided into main carpet fiber and main carpet chip according to size by the disconnector or the step disconnector of vibration.Subsequently, main carpet chip can move to first memory storage and main carpet fiber can move on to and be kept in the relay storage unit by one or more additional conveyers.
Described method may further include a carpet fiber that separates and provides to the synthesis gas and the ash that produces as side production of gasifier and generation gasification as biomass fuel.Described method can comprise that also the ash that gasification is produced moves to for example second memory cell of bunker.Ash can move by at least one additional conveyer.In first and second memory cell each can be the path part of different waste products, and carpet chip of Fen Liing and ash were isolated mutually in a period of time like this.As a result, till ash was cooled to or is lower than the fusing point of carpet chip, any waste products all was not subjected to another kind of waste products and pollutes or influence at least.
Described method can be included in before biomass fuel is incorporated in the gasifier, makes the carpet fiber of separation and one or more additional biomass fuels partially mixed.Any additional biomass fuel part can be to adjust size in advance, and without any need for cutting or chopping.For example, available additional biomass fuel part can comprise agricultural wastes or wood fuel, for example bead, wood chip, wood chip or sawdust.With before the carpet chip mixes, additional biomass fuel part can be kept at the 3rd memory cell, is incorporated in the gasifier subsequently.
Described method can comprise cooling and purify the synthesis gas that gasification produces, and synthesis gas and produce the steam that needs by the burner section heating boiler burns in burner section.Method also can comprise utilizes the feedwater of economizer preheating boiler.Selectable, gas generator turbine or other device can use synthesis gas to generate electricity.
When the preferred embodiment of the invention is described, should be appreciated that therefore the present invention is not restricted, and can not break away from the basis of the present invention and improve.Scope of the present invention is limited by accessory claim, all equipment that in the implication of claim, occurs, no matter literal on, or equivalent is included in here.
Therefore mean that above-mentioned detailed description is considered to illustrative and not restrictive, understand following claim, comprise all coordinators, purpose is the spirit and scope that limit invention.
Claims (21)
1. method of transmitting the waste products that the thermal cross over process produces, described method comprises: the waste products of transmitting and/or be stored in the gasification under the inert gas blanket.
2. the method for claim 1 is characterized in that: described method comprises with the broken waste products of roll crusher, is convenient to like this extinguish smouldering in the waste products by near the oxygen of replacing waste products with unreactable gas.
3. the method for claim 1, it is characterized in that: described method comprises that the bucket carrier with continous way transfers to memory cell to waste products.
4. method as claimed in claim 3 is characterized in that: described method comprises by contractile jet pipe and unloads waste products from memory cell.
5. method as claimed in claim 3 is characterized in that: described method comprises waste products is unloaded in the portable container from memory cell, portable container be unreactable gas second tectal below.
6. the method for claim 1 is characterized in that: the glycol/water mixtures that inert gas blanket is applied to the waste products in the cooling transmission is the waste products in the auger loader of cooling indirectly.
7. the method for claim 1, it is characterized in that: unreactable gas is a nitrogen.
8. the method for claim 1, it is characterized in that: described method comprises:
Chopping has the textile material of backing;
The textile material of chopping is separated into main fabric portions and main backing part;
The main fabric portions of gasification in gasifier, gasifier produces steam; And
Generation is as the ash of the waste products of gasification.
9. method of transmitting the waste products that the thermal cross over process produces, described method comprises:
Waste products with roll crusher crushing hot conversion process;
Cover waste products with unreactable gas; And
Bucket carrier with continous way is transferred to memory cell to waste products.
10. method as claimed in claim 9 is characterized in that: described method comprises by contractile jet pipe and unloads waste products from memory cell.
11. method as claimed in claim 9 is characterized in that: the glycol/water mixtures that inert gas blanket is applied to the waste products in the cooling transmission is the waste products in the auger loader of cooling indirectly.
12. method as claimed in claim 9 is characterized in that: during the memory cell unloading, waste products is placed under the inert gas blanket.
13. method as claimed in claim 9 is characterized in that: during being stored in memory cell, waste products place inert gas blanket below.
14. method as claimed in claim 9 is characterized in that: unreactable gas is a nitrogen.
15. method as claimed in claim 9 is characterized in that: to be the compound of accommodating main carpet fabric material and wood chip produce waste products as the gasification of biomass fuel and gasification to thermal conversion processes is ash.
16. method as claimed in claim 9 comprises:
Chopping has the textile material of backing; The chopping textile material is separated into main fabric and main backing part; The main fabric portions of gasification in gasifier, gasifier produces steam;
Gasification produces the ash as waste products.
17. a system of transmitting the waste products of thermal cross over process generation, system comprises:
Roll crusher can be operated so that the waste products of crushing hot conversion process; And
Cover the device of waste products with unreactable gas.
18. system as claimed in claim 17 is characterized in that: described system comprises:
The bucket carrier of continous way can be operated so that waste products is transferred to memory cell; And
Contractile jet pipe can be operated so that from memory cell unloading waste products.
19. system as claimed in claim 17 is characterized in that: thermal conversion processes is to accommodate useless carpet fabric and the wood chip compound gasification as biomass fuel, and waste products is the ash that gasification produces, and unreactable gas is a nitrogen.
20. system as claimed in claim 17 is characterized in that: the device that covers waste products with unreactable gas comprises can be operated so that transmit waste products and with the one or more conveyers and/or the auger loader of nitrogen covering waste products.
21. system as claimed in claim 17 is characterized in that: the device that covers waste products with unreactable gas comprises can be operated so that cover the memory cell of waste products with nitrogen.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US93831007P | 2007-05-16 | 2007-05-16 | |
| US60/938310 | 2007-05-16 | ||
| US12/117886 | 2008-05-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101428711A true CN101428711A (en) | 2009-05-13 |
Family
ID=40026225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101277340A Pending CN101428711A (en) | 2007-05-16 | 2008-05-16 | Cooling system for carpet/wood ash |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20080282944A1 (en) |
| CN (1) | CN101428711A (en) |
| CA (1) | CA2631210A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110612262A (en) * | 2018-12-11 | 2019-12-24 | 太平洋水泥株式会社 | Logistics method and logistics base for granular wood biomass fuel |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502197A (en) * | 2011-12-02 | 2012-06-20 | 师宗东方红锌业有限公司 | Special zinc powder production feeder provided with pressure release valve |
| WO2014152070A1 (en) * | 2013-03-14 | 2014-09-25 | Synthesis Energy Systems, Inc. | Method and apparatus for recycling ash fines |
| US10190065B2 (en) * | 2013-03-15 | 2019-01-29 | Mark E. Koenig | Feed delivery system and method for gasifier |
| CN109812832A (en) * | 2017-11-21 | 2019-05-28 | 吴鲜家 | High-effect combustion control system and its method |
| CN107758380B (en) * | 2017-11-25 | 2020-05-15 | 广州芬豪香精有限公司 | A prevent stifled device for spices processing transportation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848813A (en) * | 1973-03-09 | 1974-11-19 | Us Interior | Continuous process for mechanically separating materials contained in urban refuse |
| US4517905A (en) * | 1983-02-10 | 1985-05-21 | Prm Energy Systems, Inc. | Particulate waste product combustion system |
| US5535945A (en) * | 1995-02-27 | 1996-07-16 | Basf Corportion | Carpet recycling process and system |
| US5681952A (en) * | 1995-12-08 | 1997-10-28 | Alliedsignal Inc. | Process for depolymerizing nylon-containing waste to form caprolactam |
| US6945484B1 (en) * | 2000-02-02 | 2005-09-20 | Robert Terzini | Method and apparatus for processing municipal waste |
| US6467708B1 (en) * | 2000-02-02 | 2002-10-22 | Robert Terzini | Method of processing municipal waste |
-
2008
- 2008-05-09 US US12/117,886 patent/US20080282944A1/en not_active Abandoned
- 2008-05-14 CA CA002631210A patent/CA2631210A1/en not_active Abandoned
- 2008-05-16 CN CNA2008101277340A patent/CN101428711A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110612262A (en) * | 2018-12-11 | 2019-12-24 | 太平洋水泥株式会社 | Logistics method and logistics base for granular wood biomass fuel |
| CN110612262B (en) * | 2018-12-11 | 2020-09-11 | 太平洋水泥株式会社 | Logistics method and logistics base for granular wood biomass fuel |
Also Published As
| Publication number | Publication date |
|---|---|
| US20080282944A1 (en) | 2008-11-20 |
| CA2631210A1 (en) | 2008-11-16 |
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