CN204550481U - Biogas production system in parallel - Google Patents

Biogas production system in parallel Download PDF

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Publication number
CN204550481U
CN204550481U CN201520104986.7U CN201520104986U CN204550481U CN 204550481 U CN204550481 U CN 204550481U CN 201520104986 U CN201520104986 U CN 201520104986U CN 204550481 U CN204550481 U CN 204550481U
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China
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parallel
gas
biogas
vapourizing furnace
inclination angle
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CN201520104986.7U
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常厚春
马革
连华军
陈平
石胤
张强
杨城
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Zhaoqing Di Sen Bio-Energy Technology Ltd (gb) Suite 1 Bristol House 80a Southampton Row Loud
Guangzhou Devotion Thermal Technology Co Ltd
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Zhaoqing Di Sen Bio-Energy Technology Ltd (gb) Suite 1 Bristol House 80a Southampton Row Loud
Guangzhou Devotion Thermal Technology Co Ltd
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Abstract

The utility model discloses a kind of biogas production system in parallel, comprise screw feeder in parallel, high inclination angle conveyer, rotary conveyor, biomass gasifying furnace, cyclonic separator, spray column, gas-liquid separator and electrical tar precipitator.Biogas production system in parallel realizes the parallel connection of multiple stage vapourizing furnace to become concentrated aerogenesis platform, the conveying system of supporting parallel connection and purification system in parallel, make optimum configuration mutually between production unit, reduce the production unit vacant time, be conducive to unified planning to manage production, integrate and save manpower, do not affect overall operation when the local devices of system breaks down and overhauls.

Description

Biogas production system in parallel
Technical field
The utility model belongs to material gasification technology field, specifically relates to the system that biogas is produced in a kind of parallel connection.
Background technology
Gasifying biomass production process: biomass material is sent into vapourizing furnace, under certain thermal condition, participating in gasification reaction for helping gasifying medium as air, oxygen, making the superpolymer generation pyrolysis of biomass, oxidation, reduction, reforming reaction, obtaining the inflammable gas containing CO, H2 and CH4 etc.Generally speaking, biomass material is graded formed by Mierocrystalline cellulose, hemicellulose, xylogen, ash, oxygen level and volatile matter high, and coke reactivity is strong, therefore compares gasification, has higher gasification reactivity, is applicable to large-scale gasification project.The biogas that vapourizing furnace is produced, ash oontent is larger, and tar must be removed, therefore, follow-up also need obtains high-quality gas to gas through purifying treatment, and concrete main processing steps includes: dedusting (cyclonic separator), cooling (spray column), dewater (gas-liquid separator), decoking (electrical tar precipitator) etc.
With regard to air feed scale of the project in the market, because biomass air feed industry is in the junior stage, it is supply model one to one that absolutely large number biomass blowing model belongs to, namely be that single client's air feed project adopts a production line just to have enough productivity, belong to self-produced personal, certainly need be equipped with corresponding manpower and materials.And along with the development of biomass air feed industry, under the overall background of nation-building industrial park circulationization transformation, garden is encouraged to pay the utmost attention to the clean energy using non-fossil, this provides wide development space to biomass central gas supply, and urgent needs transform " one-to-many " supply model as on original " one to one " supply model.
Utility model content
In order to solve prior art Problems existing, the utility model provides the biogas production system in parallel of a kind of high yield, centralized production, unified environmental protection treatment.
In order to realize above object, the technical solution of the utility model is as follows: a kind of biogas production system in parallel, comprises following equipment successively by Production Flow Chart:
Double-spiral feeder raw material being started quantitatively conveying of two or two more parallel layouts; Two or two more parallels are arranged in high inclination angle conveyer raw material being promoted to eminence of double-spiral feeder end, and the output terminal of described high inclination angle conveyer is provided with product distribution to the electric three passes tripper of rotary conveyor; Two or more be arranged in parallel below high inclination angle conveyer by product distribution to the rotary conveyor of buffer bin, each rotary conveyor described is arranged at least three plough trippers; At least three buffer bins be arranged in parallel below rotary conveyor; At least three parallel connections are erected at lift raw material being promoted to screw feeder feeding mouth in buffer bin; At least three lateral arrangement in parallel are in screw feeder raw material quantitative being flowed to vapourizing furnace of lift discharge port; At least three vapourizing furnaces material combusting reaction being produced biogas be arranged in parallel, pass into wind by gas blower bottom described vapourizing furnace, vapourizing furnace discharge port arranges scraper conveyor; What at least three scraper conveyors were arranged in parallel inputs defeated slag crust band by lime-ash; At least three groups are arranged in parallel isolating dust and be the cyclonic separator of a group with two in vapourizing furnace two gas outlets, and the discharge port of described multiple stage cyclonic separator gathers rear connection sack cleaner; At least three covers be arranged in parallel in two cyclonic separator gas outlets reducing biogas temperature and be a set of spray column with two-stage, after the entery and delivery port of described multi-section spray column gathers and an interchanger carry out heat exchange; At least three are arranged in parallel gas outlet in secondary spray column to be separated the gas-liquid separator of moisture; At least three are arranged in parallel gas outlet in gas-liquid separator with except the electrical tar precipitator of tar removing, and the gas outlet of described electrical tar precipitator gathers rear access gas-holder.
Compared with prior art, the utility model is that the parallel connection of multiple stage vapourizing furnace is become concentrated aerogenesis platform, biogas production system in parallel is jointly formed by the conveying system of supporting parallel connection and the purification system of parallel connection, make optimum configuration mutually between production unit, reduce the production unit vacant time, be conducive to unified planning to manage production, integrate and save manpower, do not affect overall operation when the local devices of system breaks down and overhauls.
Accompanying drawing explanation
Fig. 1 is biomass gasifying parallel connection production system figure.
Fig. 2 is the plot plan of biogas production system in parallel.
Fig. 3 is biomass material parallel delivery system.
Fig. 4 is the structural representation of biomass gasifying furnace.
Fig. 5 is the structural representation of gasifying biomass furnace charge position meter.
Embodiment
As depicted in figs. 1 and 2, biomass gasifying parallel connection production-process systems overlaps twin-stage spray column 8, three gas-liquid separators in parallel 9, three electrical tar precipitators in parallel 10 in parallel primarily of the cyclonic separator 7, three of two screw feeder 1, two high inclination angle conveyers in parallel 2, two rotary conveyors in parallel 3, three lifts in parallel 4, three in parallel feed auger machine 5, three biomass gasifying furnaces in parallel 6, three groups of parallel connections in parallel and forms.
1, biomass material parallel delivery system, as Fig. 3.Biomass material parallel delivery system, is made up of two delivery systems in parallel.Every bar delivery system is made up of double-spiral feeder 1, high inclination angle conveyer 2, electric three passes tripper 20, plough tripper 19, rotary conveyor 3, buffer bin 18, lift 4 and feed auger machine 5.The feed end of high inclination angle conveyer 2 falls to melt pit, and the discharge end of high inclination angle conveyer 2 is positioned at eminence and arranges electric three passes tripper 20, and biomass material is distributed to one or two rotary conveyors 3 being positioned at lower by this electric three passes tripper 20 from eminence.Every platform rotary conveyor 3 is provided with three plough trippers 19.The corresponding buffer bin 18 of every platform plough tripper 19.Rotary conveyor position, plough tripper place is discharging point, and the plough tripper that each discharging point correspondence two is arranged side by side and a buffer bin, buffer bin 18 is positioned at below rotary conveyor 3.Each buffer bin 18 configures a lift 4, sets up the feed auger machine 5 of accumbency between lift 4 upper end and vapourizing furnace 6.
2, biomass gasifying furnace.As shown in Figure 4, biomass gasifying furnace is made up of body of heater 6.15, fire grate 6.9, combustion barrel 6.4 and wind-distributing pipe 6.14.
Fire grate 6.9 assembles body of heater 6.15, fire grate arranges ash bucket 6.7 6.9 times, and ash bucket 6.7 place offers primary air nozzle 6.8, and fire grate 6.9 outer cover has interlayer 6.6, the in-built full water of interlayer, to reduce the overseas wall temperature in primary combustion zone, reaches the object of protection body of heater.Water in interlayer is heated rear generating steam, then steam is imported vapourizing furnace participation reaction, greatly reduces tar and produces.Be positioned at cylindrical furnace 6.15 inner chamber top and center lifts a combustion barrel 6.4, the diameter of this combustion barrel 6.4 is equivalent to 3/4 of body of heater 6.15 diameter.Arrange a wind-distributing pipe 6.14 in combustion barrel 6.4, wind-distributing pipe 6.14 is made up of blast main 6.13 and some points of airducts 6.12, and blast main 6.13 and point airduct 6.12 vertical connection mutually, point airduct horizontal direction is arranged.Wind-distributing pipe 6.14 to combustion barrel 6.4 bottom spacing is precombustion region 6.11, combustion barrel bottom (about 1.5m is long) namely below wind-distributing pipe 6.14 is pre-burning region 6.11, the below in pre-burning region 6.11 is territory, primary combustion zone 6.5, this territory, primary combustion zone 6.5 is the distance between combustion barrel 6.4 bottom to fire grate 6.9, and territory, primary combustion zone 6.5 accounts for 1/3 of body of heater 6.15 height.Overfiren air port 6.10 is offered in body of heater 6.15 bottom (being namely territory, primary combustion zone place).In the middle part of body of heater 6.15, (being namely locate above territory, primary combustion zone) sets out gas port 6.3.Opening for feed 6.1 is offered at body of heater 6.15 top, and biomass fuel 6.2 drops into combustion barrel 6.4 from opening for feed 6.1, is accumulated to combustion barrel 6.4 top along combustion barrel 6.4 above fire grate 6.9.
The slag notch of each vapourizing furnace 6 arranges a slag scraper 16, three slag scrapers in parallel 16 and is equipped with a defeated slag crust band 15.The furnace roof of each vapourizing furnace 6 assembles a level gage.
As shown in Figure 5, level gage is made up of mount pad 6.17, electric liquid oil cylinder 6.27, chain 6.20, sprocket wheel 6.22, pulley 6.24, feeler lever 6.18 and detection components.Mount pad 6.17 is made up of strut, base and footstock.Base is horizontally disposed with, and it is installed in the top cone of vapourizing furnace.Strut is vertically arranged, and it is installed on base.Pole point installs footstock.Strut is installed electric liquid oil cylinder 6.27, the output shaft of electric liquid oil cylinder 6.27 connects one end of chain 6.20, chain 6.20 the other end lifting feeler lever 6.18, the stage casing frictionally driven pulley 6.24 also engaged transmission sprocket wheel 6.22 of chain 6.20.Electricity liquid oil cylinder can replace with cylinder or oil cylinder, certainly can also with stepper-motor etc.Strut being provided with upper stroke switch 6.15 and lower stroke switch 6.16, for detecting the zero position of electric liquid oil cylinder 6.27 output shaft, thus controlling the start and stop of electric liquid oil cylinder 6.27, final lower-most point and the vertex controlling feeler lever.Be connected a locating part 6.19 between feeler lever 6.18 with chain 6.20, this locating part 6.19 extend in body of heater for preventing chain 6.20, is also to prevent the feeler lever when chain 6.20 ruptures from falling in stove.Base 6.17 arranges a seal assembly 6.16, and feeler lever 6.18 stretches in stove by sealing assembly 6.16, leaks to prevent biological fuel gas.Detection components comprises rotating disk 6.21 sum counter 6.23.Coaxial upper installation one rotating disk 6.21 of sprocket wheel 6.22, footstock installs a counter 6.23.Counter detects the number of turns of rotating disk to calculate the stroke of feeler lever.
3, biogas purification system.Comprise a set of cyclonic separator 7, twin-stage spray column 8, gas-liquid separator 9 and electrical tar precipitator 10.The gas outlet of each vapourizing furnace 5 connects two cyclonic separator 7, one-level spray column 8, secondary spray column 8, gas-liquid separators 9 in parallel and an electrical tar precipitator 10 successively.The intake-outlet of spray column 8 is communicated with the intake-outlet of interchanger 13.After purification system process, clean combustion gas input gas-holder 11 stores.
Biomass gasifying parallel connection production process is:
1, charging.Biomass material is carried by two delivery systems in parallel.Biomass material (wood chip, bark, branch, discarded wooden unit) discharging to melt pit of chopping or two melt pits, each melt pit configures a high inclination angle conveyer.Biomass material is carried by one or two high inclination angle conveyers, by one or simultaneously two electric three passes trippers be dispensed to one or two rotary conveyors.After the interception of plough tripper biomass material, blanking is to buffer bin, and the biomass material in lift buffer bin is promoted to vapourizing furnace top, and send into fixed-bed gasification furnace by feed auger machine, operational throughput is about 1.5 tons/hour.
2, gas processed.Biomass material combustion reactions in vapourizing furnace produces about 400 degree high-temperature biomass gases, in gasification reaction process, supplies once main burning wind and secondary combustion-supporting wind by gas blower 17 to vapourizing furnace.Ash content, lime-ash and tar is mingled with in biomass gas.Lime-ash in biogas falls to scraper slag removing machine and collects, and after lime-ash cooling, unification transfers out to the process of Ash water skin machine.
During biomass gasifying furnace work, material level in stove need be detected at any time: first start electric liquid oil cylinder, the output shaft of electricity liquid oil cylinder stretches out, feeler lever is descending under deadweight, feeler lever drives sprocket rotation, and counter calculates the number of turns of rotating disk, is stopped descending after feeler lever touches material by stopping, rotating disk stops, and counter stops counting exporting controlling level signal.Electricity liquid oil cylinder continues up, and when electric liquid oil cylinder output shaft encounters end limit switch, electric liquid oil cylinder reverse motion, drives feeler lever vertical motion, stops until electric liquid oil cylinder output shaft encounters end limit switch.
3, pure qi (oxygen).Ash content in biogas and tar are processed by cyclonic separator and spray column and electrical tar precipitator respectively.The biogas that vapourizing furnace produces first removes dust through cyclonic separator, enter I and II spray column again to purify further, after biogas is sprayed, while the most of tar of removing, biogas reduces to about 40 degree, and then biogas enters gas-liquid separator, isolates moisture, finally input to electrical tar precipitator removing small portion tar, clean biogas is sent into gas-holder and is stored after water seal cabinet.
The dust that cyclonic separator is separated is by sack cleaner 14 dedusting again.Become high temperature spray water after the normal temperature spray water of twin-stage spray column and the heat exchange of high-temperature biomass gas, high temperature spray water need by with interchanger 13 heat exchange after become the recycling of normal temperature spray water.

Claims (1)

1. a biogas production system in parallel, is characterized in that comprising following equipment successively by Production Flow Chart:
Double-spiral feeder raw material being started quantitatively conveying of two or two more parallel layouts;
Two or two more parallels are arranged in high inclination angle conveyer raw material being promoted to eminence of double-spiral feeder end, and the output terminal of described high inclination angle conveyer is provided with product distribution to the electric three passes tripper of rotary conveyor;
Two or more be arranged in parallel below high inclination angle conveyer by product distribution to the rotary conveyor of buffer bin, each rotary conveyor described is arranged at least three plough trippers;
At least three buffer bins be arranged in parallel below rotary conveyor;
At least three parallel connections are erected at lift raw material being promoted to screw feeder feeding mouth in buffer bin;
At least three lateral arrangement in parallel are in screw feeder raw material quantitative being flowed to vapourizing furnace of lift discharge port;
At least three vapourizing furnaces material combusting reaction being produced biogas be arranged in parallel, pass into wind by gas blower bottom described vapourizing furnace, vapourizing furnace discharge port arranges scraper conveyor; What at least three scraper conveyors were arranged in parallel inputs defeated slag crust band by lime-ash;
At least three groups are arranged in parallel isolating dust and be the cyclonic separator of a group with two in vapourizing furnace two gas outlets, and the discharge port of described multiple stage cyclonic separator gathers rear connection sack cleaner;
At least three covers be arranged in parallel in two cyclonic separator gas outlets reducing biogas temperature and be a set of spray column with two-stage, after the entery and delivery port of described multi-section spray column gathers and an interchanger carry out heat exchange;
At least three are arranged in parallel gas outlet in secondary spray column to be separated the gas-liquid separator of moisture;
At least three are arranged in parallel gas outlet in gas-liquid separator with except the electrical tar precipitator of tar removing, and the gas outlet of described electrical tar precipitator gathers rear access gas-holder.
CN201520104986.7U 2015-02-11 2015-02-11 Biogas production system in parallel Active CN204550481U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107216915A (en) * 2017-06-23 2017-09-29 国网冀北节能服务有限公司 The system and method for shell biolobic material gasification co-producing active carbon and electric heating
CN107355790A (en) * 2017-07-04 2017-11-17 中国环境科学研究院 Multi-stove bodies biomass solid waste material gasification stove parallel processing system and method
CN114317034A (en) * 2022-01-17 2022-04-12 陕西分布式能源研发中心有限公司 Modular combined fixed bed gasification furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107216915A (en) * 2017-06-23 2017-09-29 国网冀北节能服务有限公司 The system and method for shell biolobic material gasification co-producing active carbon and electric heating
CN107355790A (en) * 2017-07-04 2017-11-17 中国环境科学研究院 Multi-stove bodies biomass solid waste material gasification stove parallel processing system and method
CN107355790B (en) * 2017-07-04 2019-08-13 中国环境科学研究院 Multi-stove bodies biomass solid waste material gasification stove parallel processing system and method
CN114317034A (en) * 2022-01-17 2022-04-12 陕西分布式能源研发中心有限公司 Modular combined fixed bed gasification furnace

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