CN216521627U - Device for co-production of carbon fertilizer through biomass gasification heat supply - Google Patents
Device for co-production of carbon fertilizer through biomass gasification heat supply Download PDFInfo
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- CN216521627U CN216521627U CN202220047756.1U CN202220047756U CN216521627U CN 216521627 U CN216521627 U CN 216521627U CN 202220047756 U CN202220047756 U CN 202220047756U CN 216521627 U CN216521627 U CN 216521627U
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Abstract
The utility model relates to a device for supplying heat and co-producing carbon fertilizer by gasifying biomass, which feeds materials to a gasification chamber through a belt conveyor under the control of a frequency converter, and the gasification chamber gasifies biomass particles to generate high-temperature combustibleThe gas is sprayed into a combustion chamber of the heat supply boiler to be combusted to provide heat energy for the heat supply boiler, and is subjected to dispersed combustion with introduced flue gas (mainly carbon dioxide and water vapor) in the combustion chamber to generate ash slag, and the ash slag generated in the gasification chamber and the ash slag generated by burning the introduced flue gas. The utility model treats the biomass through poly-generation, has low comprehensive treatment cost, changes waste into valuable, and reduces the emission of CO2And the carbon fertilizer is produced in parallel, so that the environmental protection and ecological benefits are improved.
Description
Technical Field
The utility model relates to a biomass treatment equipment system, in particular to a device for biomass gasification heat supply and carbon fertilizer co-production.
Background
China is a big agricultural country, biomass resources are very rich, and the annual production of straws, wheat straws, reeds, bamboos and other non-wood fibers is superiorOver 10 million tons, plus a large amount of wood processing residues, are a huge energy "warehouse". The biomass energy hardly produces pollution and does not have SO in the using process2Emission of, CO produced2Gas and a large amount of CO to be absorbed in the plant growth process2Are balanced in number, called CO2A neutral fuel. The biomass energy is used for replacing fossil fuel, so that the biomass energy can be used forever, the environmental protection and ecological benefits are outstanding, and the biomass energy greenhouse has great benefits for improving the acid rain environment of the atmosphere and reducing the content of carbon dioxide in the atmosphere so as to reduce the greenhouse effect. However, the current agricultural and forestry residual material resource waste in China is remarkable, and most of the waste is directly combusted, buried and rotted except for the small part of the waste which is used for fermenting and producing the biogas in rural areas. The biomass is converted into clean secondary energy through a gasification or liquefaction method, and double beneficial effects can be achieved, so that the problem of environmental pollution can be solved, and the dependence on petroleum and coal resources can be reduced. The biomass has the characteristics of high water content and low heat value, and can only produce synthesis gas or bio-oil with low heat value by using common process equipment, and then the synthesis gas or bio-oil with low heat value is refined into a product meeting the use requirement, so that the production cost is greatly increased, and the commercial application of a biomass conversion project is limited by overhigh production cost.
Aiming at the situation that energy is insufficient and environment protection situation is severe at present, relevant departments and technical workers of the government of China all devote on research and development of renewable new energy, development of biomass should become a research and development hotspot, a plurality of achievements come out, but the biomass is a single treatment process, the defects of insufficient utilization of resources, high treatment cost and low grade of target products exist, and the problem of treatment of waste gas, waste water and waste residues also exists. In the prior art and equipment, smoke is directly discharged from a furnace generally, so that the environment is polluted, and the phenomena of smoke exhaust heat loss, incomplete combustion heat loss of gas and incomplete gasification are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the biomass treatment process in the prior art, and provides a biomass poly-generation treatment device which comprises poly-generation treatment for producing carbon fertilizer, supplying heat and protecting environment by taking biomass as a raw material. The biomass raw materials comprise agricultural wastes, forestry wastes, wood processing wastes, aquatic plants, wild plants and wood matrix wastes of construction and decoration sites.
In order to achieve the above object, the present invention provides an apparatus for heating and co-producing carbon fertilizer by gasifying biomass, which comprises a bin for storing biomass fuel, a gasification chamber for gasifying the biomass fuel, and a first belt conveyor for conveying the biomass fuel discharged from a discharge end of the bin to a top of the gasification chamber, wherein: the device also includes:
a heat supply boiler having a combustion chamber, said combustion chamber being disposed in a high temperature zone outside of a fire outlet of said gasification chamber, and a fire blocking device being constructed in said combustion chamber to enable high temperature combustible gas ejected from said fire outlet of said gasification chamber to produce diffusive combustion in said combustion chamber, and dividing said combustion chamber into front and rear combustion zones;
the induced draft device is used for introducing the smoke in the chimney of the heat supply boiler into the gasification chamber and the front and rear combustion areas and comprises an induced draft fan and an oxygen distribution tee joint, wherein the induced draft fan can extract the smoke in the chimney, and the oxygen distribution tee joint is additionally arranged in front of an induced draft port of the induced draft fan and used for distributing oxygen;
the bottom plate of the storage bin is provided with a second belt conveyor which can convey the biomass fuel in the storage bin to the discharge end of the storage bin;
the top of the gasification chamber is provided with a rotary feeder which can feed the biomass fuel conveyed by the first belt conveyor into the gasification chamber in batches;
the bottom of the gasification chamber, the bottom of the front combustion area and the bottom of the rear combustion area are respectively provided with an ash collecting hopper with an opening at the bottom side by side;
the four frequency converters respectively control the second belt conveyor, the first belt conveyor, the rotary feeder and the induced draft fan, and the start and stop of the four frequency converters are set to be started and stopped sequentially.
Furthermore, a row of material stirring rollers with raking nails for controlling the discharge capacity of the discharge end of the storage bin are installed at the discharge end of the storage bin.
Furthermore, the induced draft device also comprises a pipeline which is communicated with an air supply outlet of the induced draft fan and laid at the bottom of the combustion chamber and can preheat the flue gas, and the pipeline introduces the flue gas in the chimney into the combustion chamber through exhaust pipes respectively arranged in the front combustion area and the rear combustion area; the pipeline leads the smoke in the chimney into the gasification chamber through a fire grate pipe which is laid at the bottom of the gasification chamber and is provided with an exhaust hole.
Further, the flue gas is mainly carbon dioxide and water vapor.
Further, a third belt conveyor for conveying carbon fertilizer generated by burning carbon dioxide and water vapor by high-temperature combustible gas in the gasification chamber and the combustion chamber is arranged below the three ash collecting hoppers arranged side by side.
Furthermore, a distributor communicated with a discharge port of the rotary feeder is arranged at the top part in the gasification chamber.
Preferably, the firestop device is of a concave configuration.
Preferably, the analog signals output by the terminals of the frequency converter for controlling the second belt conveyor control the rotation speed of the first belt conveyor, the rotary feeder and the induced draft fan in sequence.
Preferably, the ash collecting hopper is a water-sealed ash bin.
Advantageous effects
The utility model treats the biomass through poly-generation, has low comprehensive treatment cost, changes waste into valuable, and reduces the emission of CO2And carbon fertilizer is produced in parallel, so that environmental protection and ecological benefits are improved. The utility model has the following advantages: the solid raw material is completely gasified, and the energy conversion rate is high; the main product is clean energy, and the resource utilization degree is high; the reaction waste gas emission is extremely low, the purification treatment is easy to carry out, and the secondary pollution phenomenon is avoided. The utility model takes the main aim of converting biomass into secondary clean energy, really realizes harmlessness, reduction and recycling of biomass treatment, and adopts a systemThe scale can be large or small, production lines can be built in towns and towns, counties, cities and cities above province level, and products do not have the problem of sales routes, so the product is easy to popularize.
Drawings
Fig. 1 is a schematic structural diagram of the device.
Detailed Description
The utility model is further described with reference to the accompanying drawings and examples.
In one embodiment, as shown in fig. 1, the apparatus comprises a silo 1 for storing biomass fuel, a gasification chamber 2 for gasifying the biomass fuel, and a first belt conveyor 3 for conveying the biomass fuel discharged from a discharge end 11 of the silo 1 to the top of the gasification chamber 2, and further comprises: a heating boiler 4 having a combustion chamber 41, said combustion chamber 41 being disposed in a high temperature region outside the fire outlet 21 of said gasification chamber 2, and a fire damper 42 being constructed in said combustion chamber 41 for enabling the high temperature combustible gas discharged from the fire outlet 21 of said gasification chamber 2 to generate a dispersed combustion in said combustion chamber 41, and said fire damper 42 dividing said combustion chamber 41 into two front and rear combustion regions 43, 44; an induced draft device 5 for introducing the flue gas in the chimney 45 of the heat supply boiler 4 into the gasification chamber 2 and the front and rear combustion zones 43, 44, wherein the device 5 comprises an induced draft fan 51 capable of extracting the flue gas in the chimney 45 and an oxygen distribution tee 52 additionally arranged in front of an induced draft port of the induced draft fan 51 for distributing oxygen; the bottom plate of the storage bin 1 is provided with a second belt conveyor 6 which can convey the biomass fuel in the storage bin 1 to the discharge end 11 of the storage bin 1; the top of the gasification chamber 2 is provided with a rotary feeder 7 which can send the biomass fuel conveyed by the first belt conveyor 3 into the gasification chamber 2 in batch quantity; the bottoms of the gasification chamber 2, the front combustion zone 43 and the rear combustion zone 44 are respectively provided with an ash collecting hopper 8 with an opening at the bottom side by side; the system further comprises four frequency converters connected in parallel, the four frequency converters respectively control the second belt conveyor 6, the first belt conveyor 3, the rotary feeder 7 and the induced draft fan 51, and the start and stop of the four frequency converters are set to be started and stopped sequentially.
In one embodiment, as shown in figure 1, to further control the discharge capacity of the discharge end 11 of the silo 1, a row of rake-nailed kickoff rollers 12 is mounted at the discharge end 11 of the silo 1.
In one embodiment, as shown in fig. 1, in order to preheat the flue gas introduced into the gasification chamber 2 and the combustion chamber 41, a pipeline 53 which is communicated with the air supply outlet of the induced draft fan 51 and laid at the bottom of the combustion chamber 41 and can preheat the flue gas is used for introducing the flue gas in the chimney 45 into the front combustion zone 43 and the rear combustion zone 44 through exhaust pipes 54 and 55 respectively arranged in the front combustion zone 43 and the rear combustion zone 44; the pipeline 53 introduces the flue gas in the chimney 45 into the gasification chamber 2 through a fire tube 21 with exhaust holes laid at the bottom of the gasification chamber 2.
In one embodiment, as shown in FIG. 1, the flue gas is primarily carbon dioxide and water vapor.
In one embodiment, as shown in fig. 1, a third belt conveyor 9 for conveying the high-temperature combustible gas in the gasification chamber 2 and the combustion chamber 41 and ash (i.e. carbon fertilizer) generated by burning off of the flue gas is arranged below the three ash collecting hoppers 8 arranged side by side.
In one embodiment, as shown in fig. 1, a distributor 22 is provided at the top of the gasification chamber 2 in communication with the discharge opening of the rotary feeder 7 for uniform distribution.
In one embodiment, as shown in FIG. 1, the firestop device 42 is a concave structure.
In one embodiment, as shown in fig. 1, the analog signal controlling the output of the terminal of the frequency converter of the second belt conveyor 6 sequentially controls the rotation speed of the first belt conveyor 3, the rotary feeder 7 and the induced draft fan 51.
In one embodiment, as shown in fig. 1, the hopper 8 is a water-sealed hopper.
In one embodiment, as shown in fig. 1, the operation principle is that the gasification chamber 2 injects high temperature combustible gas generated by gasifying biomass particles into the combustion chamber 41 of the heating boiler 4 to burn and provide heat energy for the heating boiler 4, and generates dispersed combustion with introduced flue gas (mainly carbon dioxide and water vapor) in the combustion chamber 41 to generate ash, and the ash generated in the gasification chamber 2 and the ash generated by burning the introduced flue gas. The ash is carbon fertilizer.
Claims (8)
1. An apparatus for supplying heat and carbon fertilizer by gasifying biomass, which comprises a bin for storing biomass fuel, a gasification chamber for gasifying the biomass fuel, and a first belt conveyor for conveying the biomass fuel delivered from the discharge end of the bin to the top of the gasification chamber, wherein: the device also includes:
a heat supply boiler having a combustion chamber, said combustion chamber being disposed in a high temperature zone outside of a fire outlet of said gasification chamber, and a fire blocking device being constructed in said combustion chamber to enable high temperature combustible gas ejected from said fire outlet of said gasification chamber to produce diffusive combustion in said combustion chamber, and dividing said combustion chamber into front and rear combustion zones;
the induced draft device is used for introducing the smoke in the chimney of the heat supply boiler into the gasification chamber and the front and rear combustion areas and comprises an induced draft fan and an oxygen distribution tee, wherein the induced draft fan can extract the smoke in the chimney, and the oxygen distribution tee is additionally arranged in front of an induced draft port of the induced draft fan and used for distributing oxygen;
the bottom plate of the storage bin is provided with a second belt conveyor which can convey the biomass fuel in the storage bin to the discharge end of the storage bin;
the top of the gasification chamber is provided with a rotary feeder which can feed the biomass fuel conveyed by the first belt conveyor into the gasification chamber in batches;
the bottom of the gasification chamber, the bottom of the front combustion area and the bottom of the rear combustion area are respectively provided with an ash collecting hopper with an opening at the bottom side by side;
the four frequency converters respectively control the second belt conveyor, the first belt conveyor, the rotary feeder and the induced draft fan, and the start and stop of the four frequency converters are set to be started and stopped sequentially.
2. The device for biomass gasification heat supply and carbon fertilizer co-production according to claim 1, characterized in that: and the discharge end of the bin is provided with a row of material poking rollers with raking nails for controlling the discharge capacity of the discharge end of the bin.
3. The device for biomass gasification heat supply and carbon fertilizer co-production according to claim 1, characterized in that: the air inducing device also comprises a pipeline which is communicated with an air supply outlet of the draught fan and laid at the bottom of the combustion chamber and can preheat the flue gas, and the pipeline introduces the flue gas in the chimney into the combustion chamber through exhaust pipes which are respectively arranged in the front combustion area and the rear combustion area; the pipeline leads the smoke in the chimney into the gasification chamber through a fire grate pipe which is laid at the bottom of the gasification chamber and is provided with an exhaust hole.
4. The device for biomass gasification and heat supply co-production of carbon fertilizer according to claim 1 or 3, characterized in that: the flue gas is mainly carbon dioxide and water vapor.
5. The device for biomass gasification heat supply and carbon fertilizer co-production according to claim 1, characterized in that: and a third belt conveyor for conveying carbon fertilizer generated by burning carbon dioxide and water vapor by high-temperature combustible gas in the gasification chamber and the combustion chamber is arranged below the three ash collecting hoppers arranged side by side.
6. The device for biomass gasification heat supply and carbon fertilizer co-production according to claim 1, characterized in that: the top of the gasification chamber is provided with a distributor communicated with the discharge port of the rotary feeder.
7. The device for biomass gasification heat supply and carbon fertilizer co-production according to claim 1, characterized in that: the fire blocking device is of a concave structure.
8. The device for biomass gasification heat supply and carbon fertilizer co-production according to claim 1, characterized in that: and the analog signals output by the terminal of the frequency converter controlling the second belt conveyor control the rotating speed of the first belt conveyor, the rotary feeder and the induced draft fan in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220047756.1U CN216521627U (en) | 2022-01-10 | 2022-01-10 | Device for co-production of carbon fertilizer through biomass gasification heat supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220047756.1U CN216521627U (en) | 2022-01-10 | 2022-01-10 | Device for co-production of carbon fertilizer through biomass gasification heat supply |
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| CN216521627U true CN216521627U (en) | 2022-05-13 |
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| CN202220047756.1U Active CN216521627U (en) | 2022-01-10 | 2022-01-10 | Device for co-production of carbon fertilizer through biomass gasification heat supply |
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