Biomass power plant fuel system

Biomass power plant fuel system

  • CN 101,532,673 A
  • Filed: 03/12/2008
  • Published: 09/16/2009
  • Est. Priority Date: 03/12/2008
  • Status: Active Grant
First Claim
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1. ) a kind of collection of biomass power plant biomass fuel, processing, storage, the ability of packing, have bad luck, carrying, go in the transportation, loading-unloading vehicle, factory a whole set of Processes and apparatus such as stove are calculated, are rationally selected for use, realize the whole mode of burning on stove, the direct fire grate of whole bag fuel that wraps into of biomass fuel, exploitation has also designed a whole set of and has adapted to the biomass power plant fuel system of this pattern, mainly comprises the technology and high density stalk baling press, crane and the grab bucket thereof that adapt to this pattern, puts in order system and the equipment such as automation pipeline that wrap into the stove material loading.according to the relevant device and the device that should adopt in described method for designing of claim 1 and the design.It is characterized in that the purpose that designs is to solve the yellow stalk with loose maceration characteristic to go into the stove combustion problem.Adopt the whole biomass power plant fuel system that wraps into combustion mode (hereinafter to be referred as " this pattern ") on stove, the direct fire grate of fuel.according to the relevant device and the device that should adopt in described method for designing of claim 1 to 2 and the design.It is characterized in that adapting to this pattern fuel storage, pack, have bad luck, the ability of a whole set of process route such as transportation, loading-unloading vehicle, conveying and equipment calculates, rationally selects for use.4), it is characterized in that adapting to the process route of this pattern and high density stalk baling press, crane and grab bucket thereof, whole system and the equipment such as automation pipeline that wraps into the stove material loading according to the relevant device and the device that should adopt in described method for designing of claim 1 to 3 and the design.according to the relevant device and the device that should adopt in described method for designing of claim 1 to 4 and the design, it is characterized in that adapting to this pattern, the stalk baling press has reasonable fuel packing shape and packing compression direction;

  • The packing bundle rope of selecting for use has sufficient intensity and screen resilience.Density and profile that the standard Straw bale will be depended in the road number of bundle rope and position.6) according to the relevant device and the device that should adopt in described method for designing of claim 1 to 4 and the design, it is characterized in that adapting to this pattern, the crane that the crane parts of selecting for use satisfies intensity and exerts oneself and require;

    The grab bucket structure of crane is fit to the stalk characteristic;

    Distortion when the grab bucket hydraulic coupling of crane does not make Straw bale grasp, and adapt to the weight of extracting Straw bale automatically.7) according to the relevant device and the device that should adopt in described method for designing of claim 1 to 4 and the design, it is characterized in that adapting to the whole automation pipeline that wraps into the stove material loading of this pattern, by material feeding platform, turning pipeline, material loading chain mat machine, feeding chain mat machine, feed chain mat machine and the packing that falls automatically put etc. and partly to constitute.8) according to the relevant device and the device that should adopt in described method for designing of claim 7 and the design, it is characterized in that fuel delivery system automation line is arranged between bridge-type six pawl cranes and the boiler charging gear, the boiler charging gear exert oneself and exerting oneself of bridge-type six pawl cranes can not be mated most of the time.Therefore, require exerting oneself of fuel delivery system automation line to adjust at any time according to exerting oneself of boiler charging gear;

    From accepting material package, full automaticly carry the stalk fuel material package to the boiler batcher, by the time interval, position and the attitude of boiler batcher requirement material package is parked in the batcher;

    System has the material package of making in the material package course of conveying has on pipeline and piles up memory function successively.Storage capacity should satisfy to system awarded material operation time-out after 1 hour, and the boiler feed is not awarded the material operation because of time-out and is interrupted;

    After awarding material operation recovery, former maximum deposit state should be able to recover in system in 1 hour;

    Feeding conveyer acceptance upward material conveyer is sent material package here and but it is transported to feed conveyer and does not have the buffering feed bin that material package is piled up in the gap continuously as the stokehold automatic charging;

    After the temporary nothing of last material conveyer was sent bag, the material package fed downstream conveyer that the continuation of feeding conveyer will be stored after last material conveyer recovers to send bag, can recover raw material packet maximum deposit state, and the feeding conveyer need be considered Straw bale accumulation (pursuing and attacking) function;

    The feeding conveyer adopts the chain scraper conveyor with anti-skidding harrow nail, and chain scraper conveyor is by segment design, and long-pending putting tied Straw bales more on every section chain scraper conveyor.9) according to the relevant device and the device that should adopt in described method for designing of claim 7 and the design, it is characterized in that system exerts oneself can be along with boiler load is adjusted, accept the feed pulse signal that DCS boiler charging gear sends, carry material package to the boiler batcher, satisfy the demand that the boiler oil amount is regulated;

    System realizes control by the specific PLC system.And to various relevant informations such as the output system operation of boiler DCS system, the system failure, system overhauls.10) according to the relevant device and the device that should adopt in described method for designing of claim 7 and the design, it is characterized in that the material feeding platform accept Straw bale that regulation that crane unloads arranges and with its in accordance with regulations attitude be transported to the downstream conveying device;

    It is that direct of travel is how one group of translation lateral thruster by the material feeding platform of bag is sent to the turning conveyer that the Straw bale square formation is separated into along the Straw bale length direction;

    The traffic direction of Straw bale can be judged and adjust to material feeding platform lateral thruster charging gear automatically, guarantees that the length direction of Straw bale is consistent with the throughput direction of conveyer, and width is consistent with the width of conveyer.Material package is successively advanced by being bundled into group to entering each material conveyer after leaving the material feeding platform simultaneously.11) according to the relevant device and the device that should adopt in described method for designing of claim 7 and the design, the conveyer that it is characterized in that turning accepts to award the material Straw bale that platform is sent here, carries by bend to make material feeding platform material loading packet length direction turn 90 degrees vertical with boiler feed mouth cross section.Be connected with the last material conveyer in downstream, give material conveyer reposefully material package;

    To cross over one or two near the high position turning conveyer in the siccative canopy of boiler and go up material conveyer, and material package will be transported to the last material conveyer of lower floor by the transporter of the material conveyer blanking that makes progress by high position turning conveyer;

    Switch and also can carry out manually on the spot by make progress station that transporter material conveyer on same of material conveyer blanking accepts different dry material shed supplied materials of high position turning conveyer.12) according to the relevant device and the device that should adopt in described method for designing of claim 7 and the design, it is characterized in that material conveyer is that horizontal component is put in the end in the siccative canopy by system, accepts the turning conveyer and comes material package and flow to the feeding conveyer.Last material conveyer adopts the frequency control function, can require to change transporting velocity according to boiler load and downstream conveyor.13) according to the relevant device and the device that should adopt in described method for designing of claim 7 and the design, it is characterized in that feed conveyer is the buffering end between feeding conveyer and following material conveying device, its major function is for cooperating the attitude of adjusting material package, feed speed with the decline charging gear and material package being sent to the decline charging gear.14) according to the relevant device and the device that should adopt in described method for designing of claim 7 and the design, the charging gear major function that it is characterized in that descending is to make its decline until the assigned position of delivering to the boiler charging gear after accepting the material package of feed conveyer and adjust contraposition according to the instruction sequences ground of boiler charging gear;

    Adopt the imitative monolateral support car of fork truck formula formula device, position and rising or falling speed whole process are controlled.15) according to the relevant device and the device that should adopt in described method for designing of claim 7 and the design, it is characterized in that the position signalling of the outlet installation Straw bale of every conveyer of fuel delivery system automation line, can be according to the operation of this signal controlling upstream conveyor.Guarantee not occur the generation of putty or fracture phenomenon.The quantity of Straw bale supervisory signal is determined as required;

    Every cover fuel delivery system automatic production line has the multichannel pipeline, and the operating mode of any one road or two road pipeline faults is considered in system'"'"'s control, adjusts the operating condition of oneself at any time, guarantees that all the other operation pipelines can normally move.16) according to the relevant device and the device that should adopt in described method for designing of claim 7 and the design, it is characterized in that the plant equipment of fuel delivery system automation line all is provided with equipment protection signal (as offset signals, the signal that skids, accidental shutdown switch etc.);

    The startup of the plant equipment of fuel delivery system automation line can be accepted chain or remove chain carrying out, and boot sequence is boiler charging gear →

    decline charging gear →

    feed conveyer →

    feeding conveyer →

    last material conveyer →

    selection turning conveyer →

    turning conveyer →

    material feeding platform;

    At feeding conveyer and each section of feed conveyer the status signal that this section of judgement conveyer has or not material package is set, when only not having Straw bale on Upstream section, the feed of the conveyer of tract can start;

    17) according to the relevant device and the device that should adopt in described method for designing of claim 7 and the design;

    it is characterized in that being in when shutting down that the material feeding section has two Straw bales on wait situation and the feed conveyer when feed conveyer, last feeding conveyer of upstream is in stopped status.Two groups of optoelectronic switches are arranged on the feed conveyer, after receiving the instruction of boiler feed, feed conveyer operation Straw bale length dimension is sent a material package, and the one group of optoelectronic switch in back is open-minded on the conveyer, conveyer is shut down, after receiving instruction once more, conveyer moves for the second time sends material package, and two groups of optoelectronic switches are all open-minded, the operation of upstream feeding conveyer is filled two material packages and is waited for;

    When the boiler charging gear sent the material feeding signal, the charging gear between feed conveyer and the boiler charging gear can start;

    The electric equipment of fuel delivery system automation line all is provided with equipment protection signal (as overcurrent, short circuit, open circuit protection etc.).

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