CN106167308A - A kind of combusting rice hull electricity-generating method - Google Patents

A kind of combusting rice hull electricity-generating method Download PDF

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Publication number
CN106167308A
CN106167308A CN201610532675.XA CN201610532675A CN106167308A CN 106167308 A CN106167308 A CN 106167308A CN 201610532675 A CN201610532675 A CN 201610532675A CN 106167308 A CN106167308 A CN 106167308A
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CN
China
Prior art keywords
molding
biomass fuel
generating
water
boiler
Prior art date
Application number
CN201610532675.XA
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Chinese (zh)
Inventor
邵兵
陈亚
苏永亚
李小红
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光大生物能源(含山)有限公司
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Priority to CN201610532675.XA priority Critical patent/CN106167308A/en
Publication of CN106167308A publication Critical patent/CN106167308A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00Solid fuels
    • C10L5/40Solid fuels essentially based on materials of non-mineral origin
    • C10L5/44Solid fuels essentially based on materials of non-mineral origin on vegetable substances
    • C10L5/445Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B40/00Combustion apparatus with driven means for feeding fuel into the combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K1/00Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The invention discloses a kind of combusting rice hull electricity-generating method, belong to energy technology field.The step of the present invention is: step one: former water purification: after former water sequentially passes through raw water box, raw water pump, quartz filter, active carbon filter, intermediate water tank, conveying pump, cartridge filter, one-level high-pressure pump, first-stage reverse osmosis system, two grades of high-pressure pumps, two-stage reverse osmosis system, pure water tank and pure water pump along water (flow) direction, enters in boiler;Step 2: the molding of biomass fuel;Step 3: the transport of molding biomass fuel: molding biomass fuel is sent into boiler furnace;Step 4: combustion power generation: the biomass of molding are burnt by the mode combined with grate firing and suspension combustion;The part steam that boiler produces is by steam turbine and electrical power generators, and produced electricity is transfused to electrical network.The method can meet the prescription of generating required water, and biomass fuel manufacturing process is simple and convenient, it is possible to realize safe efficient, economic generating.

Description

A kind of combusting rice hull electricity-generating method
Technical field
The present invention relates to energy technology field, more particularly, it relates to a kind of combusting rice hull electricity-generating method.
Background technology
Along with economic fast development, power consumption is also presenting ascendant trend, and China mainly uses hydroelectric generation, core Generating and coal-fired thermal power generation, hydroelectric generation is restricted by rainwater, and nuclear power generation cost is the highest, and coal fired power generation is more general And, but a series of environmental problem can be caused, it is, thus, sought for one can substitute coal-fired thermal power generation, biomass fuel Generating is operated and is given birth to.At present, biomass fuel generating drives steam turbine to rotate generating by Boiler Steam, fetches in effluent road Containing substantial amounts of impurity particle in natural water, impurity can be divided into by the size of its discrete particles: float, colloid and solute Matter, when the compounds content of aluminum, ferrum and silicon is higher in boiler water, can form incrustation scale, at height in the boiler tube that thermic load is the highest In pressure boiler, silicic acid can be dissolved in steam, takes boiler therewith out of, is finally deposited in steam turbine, causes fault;In addition in boiler water Oxygen content require the harshest, it is therefore desirable to generating water is processed.And current existing water treatment facilities process After water can not reach generate electricity required water prescription.
Additionally, in power generation process, need to make biomass molding fuel, and existing biomass fuel manufacturing process be numerous Trivial, and can not molding completely, leverage generating efficiency.
Summary of the invention
1. invention to solve the technical problem that
It is an object of the invention to solve the water after processing at present and can not reach the required water prescription that generates electricity, biomass fuel Manufacturing process is loaded down with trivial details, the problem largely effecting on generating efficiency, it is provided that a kind of combusting rice hull electricity-generating method.The method can meet Generating required water prescription, biomass fuel manufacturing process is simple and convenient, it is possible to realize safe efficient, economic generating.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
A kind of combusting rice hull electricity-generating method of the present invention, the steps include:
Step one: former water purification: former water sequentially passes through raw water box, raw water pump, quartz filter, activated carbon along water (flow) direction Filter, intermediate water tank, conveying pump, cartridge filter, one-level high-pressure pump, first-stage reverse osmosis system, two grades of high-pressure pumps, two grades anti- After osmosis system, pure water tank and pure water pump, enter in boiler;
Step 2: the molding of biomass fuel: using conveyer that rice husk is delivered to pulverizer and pulverize, grinding particle size exists Within 1cm, control moisture percentage, 15% ± 2%, adds combustion adjuvant and binding agent, then by feeding in rice husk after being pulverized Mixed rice husk is sent in single lead screw ex truding briquetting machine extruded by material machine;
Step 3: the transport of molding biomass fuel: by transporter, molding biomass fuel is sent into boiler furnace;
Step 4: combustion power generation: the biomass of molding are burnt by the mode combined with grate firing and suspension combustion, burning is produced Raw flue gas and the slag produced in combustion and ash utilize as potash fertilizer raw material after treatment;The part water that boiler produces Steam passes through steam turbine and electrical power generators, and produced electricity is transfused to electrical network.
Further, described raw water pump and conveying pump are two and are arranged in parallel.
Further, described conveyer is plate-and-chain conveyer, and described pulverizer is twin-roll fly cutter pulverizer, and Being provided with bag type dust collector on twin-roll fly cutter pulverizer, described single lead screw ex truding briquetting machine uses porous dismountable die head, described in tear open Unloading coventry type die head coventry and have die head body and embedded extrusion head, the molding biomass fuel prepared is stored in bank, extruding The pressure of forming machine is set as 40-110 MPa so that the volume of the biomass fuel after molding is the 1/9-1/10 of original volume, And the percentage by weight of the combustion adjuvant added accounts for 3 % of mixed rice husk weight, the weight hundred of the binding agent added Proportion by subtraction accounts for the 4% of mixed rice husk weight, and the concrete composition of combustion adjuvant is 16wt% sodium chloride, 11wt% calcium hydroxide, 41wt% Cement, also includes that the total amount of sodium sulfate and ferrous sulfate, sodium sulfate and ferrous sulfate accounts for 32wt%, and binding agent is sodium silicate.
Further, described transporter includes that dolly and the first belt conveyor being sequentially connected with, bucket chain type promote Machine, the second belt conveyor, stokehold feed bin and drag conveyor, molding biomass fuel passes through dolly, the first Belt Conveying Machine, bucket chain type elevator and the second belt conveyor are admitted in the feed bin of stokehold, and the molding biomass fuel in the feed bin of stokehold leads to Cross drag conveyor and be admitted to the feeding mouth of star elephant trunk dispenser, hence in boiler furnace.
3. beneficial effect
The technical scheme using the present invention to provide, compared with prior art, has the advantages that
A kind of combusting rice hull electricity-generating method of the present invention, the method can meet the prescription of generating required water, biomass Fuel manufacturing process is simple and convenient, it is possible to realize safe efficient, economic generating.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1
A kind of combusting rice hull electricity-generating method of the present embodiment, the steps include:
Step one: former water purification: former water sequentially passes through raw water box, raw water pump, quartz filter, activated carbon along water (flow) direction Filter, intermediate water tank, conveying pump, cartridge filter, one-level high-pressure pump, first-stage reverse osmosis system, two grades of high-pressure pumps, two grades anti- After osmosis system, pure water tank and pure water pump, enter in boiler, wherein: above-mentioned raw water pump and conveying pump are two cloth in parallel Put;
Step 2: the molding of biomass fuel: use plate-and-chain conveyer that rice husk is delivered to twin-roll fly cutter pulverizer and carry out powder Broken, twin-roll fly cutter pulverizer is provided with bag type dust collector, grinding particle size within 1cm, control moisture percentage 15% ± 2%, rice husk after being pulverized adds combustion adjuvant and binding agent, the percentage by weight of the combustion adjuvant added accounts for mixed rice 3 % of shell weight, the percentage by weight of the binding agent added accounts for the 4% of mixed rice husk weight, the concrete composition of combustion adjuvant For 16wt% sodium chloride, 11wt% calcium hydroxide, 41wt% cement, also include sodium sulfate and ferrous sulfate, sodium sulfate and ferrous sulfate Total amount account for 32wt%, binding agent is sodium silicate, then by feeding machine, mixed rice husk is sent in single lead screw ex truding briquetting machine and is extruded Molding, above-mentioned single lead screw ex truding briquetting machine uses porous dismountable die head, and described dismountable die head has die head body and embedded squeezes Pressure head, the molding biomass fuel prepared is stored in bank, and the pressure of single lead screw ex truding briquetting machine is set as 40-110 MPa, makes Obtain the 1/9-1/10 that volume is original volume of the biomass fuel after molding.
Step 3: the transport of molding biomass fuel: by transporter, molding biomass fuel is sent into boiler combustion Room, above-mentioned transporter includes dolly and the first belt conveyor being sequentially connected with, bucket chain type elevator, the second Belt Conveying Machine, stokehold feed bin and drag conveyor, molding biomass fuel passes through dolly, the first belt conveyor, bucket chain type elevator Being admitted in the feed bin of stokehold with the second belt conveyor, the molding biomass fuel in the feed bin of stokehold is sent by drag conveyor Enter the feeding mouth of star elephant trunk dispenser, hence in boiler furnace;
Step 4: combustion power generation: the biomass of molding are burnt by the mode combined with grate firing and suspension combustion, burning is produced Raw flue gas and the slag produced in combustion and ash utilize as potash fertilizer raw material after treatment;The part water that boiler produces Steam passes through steam turbine and electrical power generators, and produced electricity is transfused to electrical network.
A kind of combusting rice hull electricity-generating method of the present embodiment, the method can meet the prescription of generating required water, Biomass fuel manufacturing process is simple and convenient, it is possible to realize safe efficient, economic generating.
Schematically being described the present invention and embodiment thereof above, this description does not has restricted, actual side Method is not limited thereto.So, if those of ordinary skill in the art is enlightened by it, without departing from the invention objective In the case of, design the method similar to this technical scheme and embodiment without creative, the protection of the present invention all should be belonged to Scope.

Claims (4)

1. a combusting rice hull electricity-generating method, it is characterised in that: the steps include:
Step one: former water purification: former water sequentially passes through raw water box, raw water pump, quartz filter, activated carbon along water (flow) direction Filter, intermediate water tank, conveying pump, cartridge filter, one-level high-pressure pump, first-stage reverse osmosis system, two grades of high-pressure pumps, two grades anti- After osmosis system, pure water tank and pure water pump, enter in boiler;
Step 2: the molding of biomass fuel: using conveyer that rice husk is delivered to pulverizer and pulverize, grinding particle size exists Within 1cm, control moisture percentage, 15% ± 2%, adds combustion adjuvant and binding agent, then by feeding in rice husk after being pulverized Mixed rice husk is sent in single lead screw ex truding briquetting machine extruded by material machine;
Step 3: the transport of molding biomass fuel: by transporter, molding biomass fuel is sent into boiler furnace;
Step 4: combustion power generation: the biomass of molding are burnt by the mode combined with grate firing and suspension combustion, burning is produced Raw flue gas and the slag produced in combustion and ash utilize as potash fertilizer raw material after treatment;The part water that boiler produces Steam passes through steam turbine and electrical power generators, and produced electricity is transfused to electrical network.
A kind of combusting rice hull electricity-generating method the most according to claim 1, it is characterised in that: described raw water pump and conveying pump It is two to be arranged in parallel.
A kind of combusting rice hull electricity-generating method the most according to claim 1 and 2, it is characterised in that: described conveyer is plate Chain conveyer, described pulverizer is to be provided with pocket type dust suction on twin-roll fly cutter pulverizer, and twin-roll fly cutter pulverizer Device, described single lead screw ex truding briquetting machine uses porous dismountable die head, and described dismountable die head has die head body and embedded extruding Head, the molding biomass fuel prepared is stored in bank, and the pressure of single lead screw ex truding briquetting machine is set as 40-110 MPa so that The volume of the biomass fuel after molding is the 1/9-1/10 of original volume, and the percentage by weight of the combustion adjuvant added accounts for mixed 3 % of the rice husk weight after conjunction, the percentage by weight of the binding agent added accounts for the 4% of mixed rice husk weight, combustion adjuvant Concrete composition is 16wt% sodium chloride, 11wt% calcium hydroxide, 41wt% cement, also includes sodium sulfate and ferrous sulfate, sodium sulfate and The total amount of ferrous sulfate accounts for 32wt%, and binding agent is sodium silicate.
A kind of combusting rice hull electricity-generating method the most according to claim 3, it is characterised in that: described transporter includes Dolly and the first belt conveyor, bucket chain type elevator, the second belt conveyor, stokehold feed bin and the scraper plate that are sequentially connected with are defeated Sending machine, molding biomass fuel is admitted to by dolly, the first belt conveyor, bucket chain type elevator and the second belt conveyor In the feed bin of stokehold, the molding biomass fuel in the feed bin of stokehold is admitted to the pan feeding of star elephant trunk dispenser by drag conveyor Mouthful, hence in boiler furnace.
CN201610532675.XA 2016-07-08 2016-07-08 A kind of combusting rice hull electricity-generating method CN106167308A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104304A (en) * 2013-01-29 2013-05-15 嘉兴新嘉爱斯热电有限公司 Formed biomass fuel power generation method
CN204342565U (en) * 2014-11-19 2015-05-20 重庆中科过滤设备制造有限公司 Boiler of power generation by waste heat make up water treatment equipment
CN204848516U (en) * 2015-07-03 2015-12-09 深圳恒通源环保科技有限公司 Water purifier and biomass power generation station water supply system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104304A (en) * 2013-01-29 2013-05-15 嘉兴新嘉爱斯热电有限公司 Formed biomass fuel power generation method
CN204342565U (en) * 2014-11-19 2015-05-20 重庆中科过滤设备制造有限公司 Boiler of power generation by waste heat make up water treatment equipment
CN204848516U (en) * 2015-07-03 2015-12-09 深圳恒通源环保科技有限公司 Water purifier and biomass power generation station water supply system

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Application publication date: 20161130