CN211546419U - System for producing fuel gas - Google Patents
System for producing fuel gas Download PDFInfo
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- CN211546419U CN211546419U CN201922140833.9U CN201922140833U CN211546419U CN 211546419 U CN211546419 U CN 211546419U CN 201922140833 U CN201922140833 U CN 201922140833U CN 211546419 U CN211546419 U CN 211546419U
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- flue gas
- raw material
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- pipe
- fuel gas
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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Abstract
The utility model provides a system for production fuel gas, include: the flue gas drying equipment is respectively connected with the carrier heating pipe and the first cyclone separator; the first cyclone separator is connected with the primary raw material bin; the primary raw material bin is connected with a fuel gas purifying pipe; the fuel gas purifying pipe is respectively connected with the second cyclone separator and the pyrolysis reactor; the second cyclone separator is respectively connected with the secondary raw material bin and the circulating water washing tower; the circulating water washing tower is connected with the electric tar precipitator; the secondary raw material bin is connected with the pyrolysis reactor; the carrier buffer bin is connected with the pyrolysis reactor; the pyrolysis reactor is connected with the separation equipment; the separation equipment is connected with the carrier heating pipe; the carrier heating pipe is respectively connected with the hot blast stove and the carrier caching bin. The utility model provides a system for production fuel gas can the increasing the thermal efficiency.
Description
Technical Field
The utility model relates to the technical field of machinery, in particular to system for producing fuel gas.
Background
Biomass refers to various organisms formed by photosynthesis, including all animals and plants and microorganisms, such as: corn stalks, corn cobs, wheat stalks, rice hulls, bamboo stalks, reeds and the like. These biomasses can be used as feedstock for the production of fuel gas. Most of the systems for producing fuel gas in the prior art are biomass gasification production, the heat value of the produced fuel gas is low, and the heat efficiency of the system is low.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a system for producing fuel gas can the increasing heat efficiency.
An embodiment of the utility model provides a system for producing fuel gas, include:
the system comprises flue gas drying equipment, a primary raw material bin, a secondary raw material bin, a first cyclone separator, a second cyclone separator, a fuel gas purification pipe, a carrier buffer bin, a pyrolysis reactor, a carrier heating pipe, separation equipment, a hot blast stove, a circulating water washing tower and an electric tar precipitator;
the flue gas drying equipment is respectively connected with the carrier heating pipe and the first cyclone separator;
the first cyclone separator is connected with the primary raw material bin;
the primary raw material bin is connected with the fuel gas purifying pipe;
the fuel gas purifying pipe is respectively connected with the second cyclone separator and the pyrolysis reactor;
the second cyclone separator is respectively connected with the secondary raw material bin and the circulating water washing tower;
the circulating water washing tower is connected with the electric tar precipitator;
the secondary raw material bin is connected with the pyrolysis reactor;
the carrier buffer bin is connected with the pyrolysis reactor;
the pyrolysis reactor is connected with the separation equipment;
the separation equipment is connected with the carrier heating pipe;
the carrier heating pipe is respectively connected with the hot blast stove and the carrier cache bin;
the flue gas output by the carrier heating pipe enters the flue gas drying equipment to dry the raw material in the flue gas drying equipment, and the raw material and the flue gas passing through the flue gas drying equipment enter the first cyclone separator;
the first cyclone separator separates the raw material from the flue gas, the separated flue gas is discharged from an exhaust port of the first cyclone separator, and the separated raw material enters the primary raw material bin;
the raw materials in the primary raw material bin enter the fuel gas purifying pipe, the fuel gas generated in the pyrolysis reactor enters the fuel gas purifying pipe, and the fuel gas and the raw materials are mixed in the fuel gas purifying pipe and then enter the second cyclone separator;
the second cyclone separator separates the raw material from the fuel gas, the separated fuel gas enters the circulating water washing tower, and the separated raw material enters the secondary raw material bin;
the fuel gas passes through the circulating water washing tower, enters the electrical tar precipitator and is output after passing through the electrical tar precipitator;
in the second grade raw materials storehouse the raw materials gets into pyrolysis reactor, the carrier in carrier buffer storehouse 7 gets into pyrolysis reactor, the raw materials with the carrier is in pyrolysis reactor carries out the heat transfer schizolysis, generates charcoal with the fuel gas, charcoal with the carrier gets into splitter, splitter will charcoal with the carrier separation, after the separation the carrier gets into the carrier heating pipe, the hot-blast furnace is right in the carrier heating pipe the carrier gets into the heating, after the heating the carrier gets into in the carrier buffer storehouse, the hot-blast furnace produces the flue gas process the carrier heating pipe back gets into flue gas drying equipment.
Alternatively,
the system further comprises:
the secondary raw material bin is connected with the hot blast stove;
and one part of the raw materials in the secondary raw material bin is output to the hot blast stove and used as fuel of the hot blast stove, and the other part of the raw materials in the secondary raw material bin enters the pyrolysis reactor.
Alternatively,
the system further comprises:
the electrical tar precipitator is connected with the hot blast stove;
and part of the fuel gas output by the electrical tar precipitator enters the hot blast stove to be used as fuel of the hot blast stove.
Alternatively,
the system further comprises: a dust remover;
the dust remover is connected with the exhaust port of the first cyclone separator;
and the flue gas discharged from the exhaust port of the first cyclone separator enters the dust remover, is dedusted by the dust remover, and is discharged by the dust remover.
Alternatively,
the carrier, comprising: and (3) ceramic balls.
Alternatively,
the separation apparatus, comprising: a fan;
the wind output by the fan blows the carbon out of the carrier.
Alternatively,
the flue gas drying equipment comprises: a flue gas drying pipe;
the flue gas drying pipe is provided with a raw material inlet, a flue gas inlet and a flue gas outlet;
the flue gas inlet of the flue gas drying pipe is connected with the carrier heating pipe, and the outlet of the flue gas drying pipe is connected with the first cyclone separator;
the flue gas output by the carrier heating pipe enters the flue gas drying pipe from the flue gas inlet;
the raw material enters the flue gas drying pipe from the raw material inlet;
the raw material and the flue gas passing through the flue gas drying pipe enter the first cyclone separator through an outlet of the flue gas drying pipe.
Alternatively,
the system further comprises: a first screw conveyor;
the first screw conveyor is arranged between the primary raw material bin and the fuel gas purifying pipe;
the raw material output by the primary raw material bin enters the first screw conveyer and is output to the fuel gas purifying pipe through the first screw conveyer.
Alternatively,
the system further comprises: a second screw conveyor;
the second screw conveyor is arranged between the secondary raw material bin and the pyrolysis reactor;
and the raw materials output by the secondary raw material bin enter the second screw conveyer and are output to the pyrolysis reactor through the second screw conveyer.
Alternatively,
the system further comprises: an air preheater;
the air preheater is arranged between the carrier heating pipe and the flue gas drying equipment;
the air preheater is connected with the hot blast stove;
the flue gas output by the carrier heating pipe enters the air preheater, and enters the flue gas drying equipment after the flue gas exchanges heat with air in the air preheater;
and the preheated air output by the air preheater is used as the combustion air distribution of the hot blast stove.
The embodiment of the utility model provides an in, the flue gas that produces when the carrier of hot-blast furnace in to the carrier heating pipe heats enters into flue gas drying equipment, rather than directly to in the air to utilize these flue gases to carry out the drying to the raw materials in the flue gas drying equipment. Therefore, the heat generated by the hot blast stove can heat the carrier and can also dry the raw materials, and the heat efficiency is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a system for producing fuel gas according to an embodiment of the present invention;
fig. 2 is a schematic diagram of another fuel gas production system according to an embodiment of the present invention.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments, based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a system for producing fuel gas, including:
the system comprises a flue gas drying device 1, a primary raw material bin 2, a secondary raw material bin 3, a first cyclone separator 4, a second cyclone separator 5, a fuel gas purifying pipe 6, a carrier buffer bin 7, a pyrolysis reactor 8, a carrier heating pipe 9, a separating device 10, a hot blast furnace 11, a circulating water washing tower 12 and an electric tar precipitator 13;
the flue gas drying equipment 1 is respectively connected with the carrier heating pipe 9 and the first cyclone separator 4;
the first cyclone separator 4 is connected with the primary raw material bin 2;
the primary raw material bin 2 is connected with the fuel gas purifying pipe 6;
the fuel gas purifying pipe 6 is respectively connected with the second cyclone separator 5 and the pyrolysis reactor 8;
the second cyclone separator 5 is respectively connected with the secondary raw material bin 3 and the circulating water washing tower 12;
the circulating water washing tower 12 is connected with the electrical tar precipitator 13;
the secondary raw material bin 3 is connected with the pyrolysis reactor 8;
the carrier buffer bin 7 is connected with the pyrolysis reactor 8;
the pyrolysis reactor 8 is connected to the separation device 10;
the separation device 10 is connected with the carrier heating pipe 9;
the carrier heating pipe 9 is respectively connected with the hot blast stove 11 and the carrier buffer bin 7;
the flue gas output by the carrier heating pipe 9 enters the flue gas drying equipment 1, the raw material in the flue gas drying equipment 1 is dried, and the raw material and the flue gas passing through the flue gas drying equipment 1 enter the first cyclone separator 4;
the first cyclone separator 4 separates the raw material from the flue gas, the separated flue gas is discharged from an exhaust port of the first cyclone separator 4, and the separated raw material enters the primary raw material bin 2;
the raw materials in the primary raw material bin 2 enter the fuel gas purifying pipe 6, the fuel gas generated in the pyrolysis reactor 8 enters the fuel gas purifying pipe 6, and the fuel gas and the raw materials are mixed in the fuel gas purifying pipe 6 and then enter the second cyclone separator 5;
the second cyclone separator 5 separates the raw material from the fuel gas, the separated fuel gas enters the circulating water washing tower 12, and the separated raw material enters the secondary raw material bin 3;
the fuel gas passes through the circulating water washing tower 12, enters the electrical tar precipitator 13, and is output after passing through the electrical tar precipitator 13;
the raw materials in the secondary raw material bin 3 enter the pyrolysis reactor 8, the carriers in the carrier buffer bin 7 enter the pyrolysis reactor, the raw materials and the carriers are subjected to heat exchange cracking in the pyrolysis reactor 8 to generate carbon and fuel gas, the carbon and the carriers enter the separation equipment 10, the separation equipment 10 separates the carbon from the carriers, the separated carriers enter the carrier heating pipes 9, the hot blast stove heats the carriers in the carrier heating pipes 9, the heated carriers enter the carrier buffer bin 7, and the flue gas generated by the hot blast stove 11 enters the flue gas drying equipment 1 after passing through the carrier heating pipes 9.
The embodiment of the utility model provides an in, the flue gas that produces when the carrier of hot-blast furnace in to the carrier heating pipe heats enters into flue gas drying equipment, rather than directly to in the air to utilize these flue gases to carry out the drying to the raw materials in the flue gas drying equipment. Therefore, the heat generated by the hot blast stove can heat the carrier and can also dry the raw materials, and the heat efficiency is greatly improved.
In fig. 1, the raw material inlet on the flue gas drying plant (on the left side of the flue gas drying plant in fig. 1), the exhaust of the first cyclone (at the upper end of the first cyclone in fig. 1), and the outlet of the electrical tar precipitator (on the right side of the electrical tar precipitator in fig. 1) are shown.
In an embodiment of the present invention, the system further includes:
the secondary raw material bin is connected with the hot blast stove;
and one part of the raw materials in the secondary raw material bin is output to the hot blast stove and used as fuel of the hot blast stove, and the other part of the raw materials in the secondary raw material bin enters the pyrolysis reactor.
The embodiment of the utility model provides an in, can regard as the fuel of hot-blast furnace with the part raw materials in the raw materials storehouse of second grade, avoided obtaining new fuel from the outside, entire system's operation is more convenient. The raw materials in the secondary raw material bin are dried and are easier to burn.
Wherein, the raw materials can be transmitted between the secondary raw material bin and the hot blast stove through a conveyer belt.
In an embodiment of the present invention, the system further includes:
the electrical tar precipitator is connected with the hot blast stove;
and part of the fuel gas output by the electrical tar precipitator enters the hot blast stove to be used as fuel of the hot blast stove.
The embodiment of the utility model provides an in, can avoid obtaining new fuel from the outside as the fuel of hot-blast furnace with the partial fuel gas that produces in the system, whole system's operation is more convenient.
Wherein, a gas storage bag can be arranged at the outlet of the electrical tar precipitator, part of the fuel gas output by the electrical tar precipitator is temporarily stored in the gas storage bag, and then the fuel gas in the gas storage bag is provided for the hot blast stove.
In an embodiment of the present invention, the system further includes: a dust remover;
the dust remover is connected with the exhaust port of the first cyclone separator;
and the flue gas discharged from the exhaust port of the first cyclone separator enters the dust remover, is dedusted by the dust remover, and is discharged by the dust remover.
The embodiment of the utility model provides an in, can remove dust to first cyclone exhaust flue gas through this dust remover, discharge the air after the dust removal again, avoided causing the pollution to the environment.
In an embodiment of the present invention, the carrier includes: and (3) ceramic balls.
In the embodiment of the present invention, there may be a plurality of ceramic balls in the carrier buffer bin. The ceramic balls have a high temperature after being heated by the carrier heating pipe, and the ceramic balls with the high temperature are mixed with the raw materials in the pyrolysis reactor, and then are subjected to heat exchange with the raw materials to perform pyrolysis on the raw materials.
In an embodiment of the present invention, the separation apparatus includes: a fan;
the wind output by the fan blows the carbon out of the carrier.
The embodiment of the utility model provides an in, the raw materials is by pyrolysis in pyrolysis reactor, generates the charcoal, and the fan blows away these charcoals after, has remained the carrier, has realized the separation of charcoal and carrier.
In an embodiment of the present invention, the flue gas drying apparatus includes: a flue gas drying pipe;
the flue gas drying pipe is provided with a raw material inlet, a flue gas inlet and a flue gas outlet;
the flue gas inlet of the flue gas drying pipe is connected with the carrier heating pipe, and the outlet of the flue gas drying pipe is connected with the first cyclone separator;
the flue gas output by the carrier heating pipe enters the flue gas drying pipe from the flue gas inlet;
the raw material enters the flue gas drying pipe from the raw material inlet;
the raw material and the flue gas passing through the flue gas drying pipe enter the first cyclone separator through an outlet of the flue gas drying pipe.
The embodiment of the utility model provides an in, flue gas inlet and the export of flue gas drying tube can set up respectively at the both ends of flue gas drying tube, and raw materials entry can set up in the side of flue gas drying tube, and preferably, raw materials entry is close to the flue gas entry. In one implementation, the flue gas enters through the flue gas inlet, dries the raw materials, and then drives the raw materials together out of the outlet.
In an embodiment of the present invention, the system further includes: a first screw conveyor;
the first screw conveyor is arranged between the primary raw material bin and the fuel gas purifying pipe;
the raw material output by the primary raw material bin enters the first screw conveyer and is output to the fuel gas purifying pipe through the first screw conveyer.
The embodiment of the utility model provides an in, the former feed bin of one-level is provided with the export, and the raw materials in the former feed bin of one-level can be followed the export output under the effect of gravity, then, reaches on the first screw conveyer, then, gets into the fuel gas purge tube.
In an embodiment of the present invention, the system further includes: a second screw conveyor;
the second screw conveyor is arranged between the secondary raw material bin and the pyrolysis reactor;
and the raw materials output by the secondary raw material bin enter the second screw conveyer and are output to the pyrolysis reactor through the second screw conveyer.
The embodiment of the utility model provides an in, the former feed bin of second grade is provided with the export, and the raw materials in the former feed bin of second grade can be from the export output under the effect of gravity, then, reaches on the second screw conveyer, then, gets into pyrolysis reactor.
In an embodiment of the present invention, the system further includes: an air preheater;
the air preheater is arranged between the carrier heating pipe and the flue gas drying equipment;
the air preheater is connected with the hot blast stove;
the flue gas output by the carrier heating pipe enters the air preheater, and enters the flue gas drying equipment after the flue gas exchanges heat with air in the air preheater;
and the preheated air output by the air preheater is used as the combustion air distribution of the hot blast stove.
The embodiment of the utility model provides an in, can reduce the temperature of the flue gas that will get into flue gas drying equipment through air heater. For example: the temperature of the flue gas output by the carrier heating pipe is generally about 800 ℃, and after passing through the air preheater, the temperature of the flue gas can be about 300 ℃ when the flue gas enters the flue gas drying equipment. Therefore, the damage to the raw materials in the flue gas drying equipment caused by overhigh temperature of the flue gas entering the flue gas drying equipment can be avoided.
As shown in fig. 2, an embodiment of the present invention provides a system for producing fuel gas, including:
the system comprises a flue gas drying device 1, a primary raw material bin 2, a secondary raw material bin 3, a first cyclone separator 4, a second cyclone separator 5, a fuel gas purifying pipe 6, a carrier buffer bin 7, a pyrolysis reactor 8, a carrier heating pipe 9, a separating device 10, a hot blast stove 11, a circulating water washing tower 12, an electric tar precipitator 13, a dust remover 14, a first screw conveyor 15, a second screw conveyor 16 and an air preheater 17;
the flue gas drying equipment 1 is respectively connected with an air preheater 17 and a first cyclone separator 4;
the air preheater 17 is respectively connected with the carrier heating pipe 9 and the hot blast stove 11;
the first cyclone separator 4 is respectively connected with the primary raw material bin 2 and the dust remover 14;
the primary raw material bin 2 is connected with a first screw conveyor 15, and the first screw conveyor 15 is connected with a fuel gas purifying pipe 6;
the fuel gas purifying pipe 6 is respectively connected with the second cyclone separator 5 and the pyrolysis reactor 8;
the second cyclone separator 5 is respectively connected with the secondary raw material bin 3 and the circulating water washing tower 12;
the circulating water washing tower 12 is connected with an electric tar precipitator 13;
the secondary raw material bin 3 is connected with a second screw conveyor 16, and the second screw conveyor 16 is connected with the pyrolysis reactor 8;
the carrier buffer bin 7 is connected with the pyrolysis reactor 8;
the pyrolysis reactor 8 is connected to a separation device 10;
the separation device 10 is connected with the carrier heating pipe 9;
the carrier heating pipe 9 is respectively connected with the hot blast stove 11 and the carrier buffer storage bin 7.
In fig. 2 is shown the raw material inlet on the flue gas drying plant (on the left side of the flue gas drying plant in fig. 2), the exhaust of the first cyclone (at the upper end of the first cyclone in fig. 2), the outlet of the electrical tar precipitator (on the right side of the electrical tar precipitator in fig. 2), the exhaust of the dust separator (on the right side of the dust separator in fig. 2).
The process for generating fuel gas based on a system for producing fuel gas shown in fig. 2 is as follows:
inputting raw materials into a flue gas drying device, wherein the raw materials can be as follows: the biomass comprises biomass such as corn straws, corncobs, wheat straws, rice hulls, bamboo straws, reeds and the like, the crushing granularity of the raw materials can be less than or equal to 10mm, and the water content of the raw materials is less than or equal to 25%.
The method comprises the following steps that flue gas output by a carrier heating pipe enters flue gas drying equipment after being cooled by an air preheater, raw materials in the flue gas drying equipment are dried, and the flue gas and the raw materials enter a first cyclone separator together after being dried;
the first cyclone separator separates raw materials from flue gas, the separated flue gas enters the dust remover from an exhaust port of the first cyclone separator, and the separated raw materials enter the primary raw material bin;
the flue gas entering the dust remover is discharged into the air after being dedusted by the dust remover;
the raw materials in the primary raw material bin enter a first screw conveyor and are conveyed to a fuel gas purifying pipe through the first screw conveyor;
the fuel gas generated in the pyrolysis reactor enters a fuel gas purifying pipe, the fuel gas and the raw materials are mixed in the fuel gas purifying pipe and then enter a second cyclone separator, and the raw materials and the fuel gas can exchange heat in the fuel gas purifying pipe to realize the cooling and tar removal of the fuel gas, wherein the fuel gas output by the pyrolysis reactor is about 800 ℃;
the second cyclone separator separates the raw material from the fuel gas, the separated fuel gas enters a circulating water washing tower, and the separated raw material enters a secondary raw material bin;
the fuel gas enters the electrical tar precipitator 13 after passing through the circulating water washing tower 12, is output after passing through the electrical tar precipitator 13, is washed by water in the circulating water washing tower, and is subjected to tar removal in the electrical tar precipitator, so that the fuel gas output by the electrical tar precipitator is purer, and qualified fuel gas is output by the electrical tar precipitator;
the raw materials in the secondary raw material bin enter a second screw conveyor, the second screw conveyor conveys the raw materials to a pyrolysis reactor, and carriers and the raw materials are in contact reaction in the pyrolysis reactor;
performing heat exchange cracking on the raw material and the carrier in a pyrolysis reactor to generate carbon and fuel gas, and enabling the carbon and the carrier to enter separation equipment, wherein the pyrolysis reactor is provided with a plurality of distributing devices, so that the raw material and the carrier in the pyrolysis reactor are in full contact and are in full reaction, and in addition, the carbon can be biochar;
separating the carbon from the carrier by using separation equipment, and feeding the separated carrier into a carrier heating pipe;
the hot-blast furnace gets into the heating to carrier heating pipe well carrier, and the carrier after the heating enters into carrier buffer storehouse, and the flue gas that the hot-blast furnace produced gets into air heater behind the carrier heating pipe, and wherein, the carrier heating pipe can be the pipe of a metal material, and the hot-blast furnace can use naked light to heat this carrier heating pipe, and then realizes the heating to the carrier in the carrier heating pipe.
Through the embodiment of the utility model provides a fuel gas that system of production fuel gas generated's calorific value is high, and purifying effect is good.
The utility model discloses each embodiment has following beneficial effect at least:
1. the embodiment of the utility model provides an in, the flue gas that produces when the carrier of hot-blast furnace in to the carrier heating pipe heats enters into flue gas drying equipment, rather than directly to in the air to utilize these flue gases to carry out the drying to the raw materials in the flue gas drying equipment. Therefore, the heat generated by the hot blast stove can heat the carrier and can also dry the raw materials, and the heat efficiency is greatly improved.
2. Through the embodiment of the utility model provides a fuel gas that system of production fuel gas generated's calorific value is high, and purifying effect is good.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Finally, it is to be noted that: the above description is only the preferred embodiment of the present invention, which is only used to illustrate the technical solution of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention is included in the protection scope of the present invention.
Claims (10)
1. A system for producing fuel gas, comprising:
the system comprises flue gas drying equipment, a primary raw material bin, a secondary raw material bin, a first cyclone separator, a second cyclone separator, a fuel gas purification pipe, a carrier buffer bin, a pyrolysis reactor, a carrier heating pipe, separation equipment, a hot blast stove, a circulating water washing tower and an electric tar precipitator;
the flue gas drying equipment is respectively connected with the carrier heating pipe and the first cyclone separator;
the first cyclone separator is connected with the primary raw material bin;
the primary raw material bin is connected with the fuel gas purifying pipe;
the fuel gas purifying pipe is respectively connected with the second cyclone separator and the pyrolysis reactor;
the second cyclone separator is respectively connected with the secondary raw material bin and the circulating water washing tower;
the circulating water washing tower is connected with the electric tar precipitator;
the secondary raw material bin is connected with the pyrolysis reactor;
the carrier buffer bin is connected with the pyrolysis reactor;
the pyrolysis reactor is connected with the separation equipment;
the separation equipment is connected with the carrier heating pipe;
the carrier heating pipe is respectively connected with the hot blast stove and the carrier cache bin;
the flue gas output by the carrier heating pipe enters the flue gas drying equipment to dry the raw material in the flue gas drying equipment, and the raw material and the flue gas passing through the flue gas drying equipment enter the first cyclone separator;
the first cyclone separator separates the raw material from the flue gas, the separated flue gas is discharged from an exhaust port of the first cyclone separator, and the separated raw material enters the primary raw material bin;
the raw materials in the primary raw material bin enter the fuel gas purifying pipe, the fuel gas generated in the pyrolysis reactor enters the fuel gas purifying pipe, and the fuel gas and the raw materials are mixed in the fuel gas purifying pipe and then enter the second cyclone separator;
the second cyclone separator separates the raw material from the fuel gas, the separated fuel gas enters the circulating water washing tower, and the separated raw material enters the secondary raw material bin;
the fuel gas passes through the circulating water washing tower, enters the electrical tar precipitator and is output after passing through the electrical tar precipitator;
in the second grade raw materials storehouse the raw materials gets into pyrolysis reactor, the carrier in carrier buffer storehouse 7 gets into pyrolysis reactor, the raw materials with the carrier is in pyrolysis reactor carries out the heat transfer schizolysis, generates charcoal with the fuel gas, charcoal with the carrier gets into splitter, splitter will charcoal with the carrier separation, after the separation the carrier gets into the carrier heating pipe, the hot-blast furnace is right in the carrier heating pipe the carrier gets into the heating, after the heating the carrier gets into in the carrier buffer storehouse, the hot-blast furnace produces the flue gas process the carrier heating pipe back gets into flue gas drying equipment.
2. The system of claim 1,
further comprising:
the secondary raw material bin is connected with the hot blast stove;
and one part of the raw materials in the secondary raw material bin is output to the hot blast stove and used as fuel of the hot blast stove, and the other part of the raw materials in the secondary raw material bin enters the pyrolysis reactor.
3. The system of claim 1,
further comprising:
the electrical tar precipitator is connected with the hot blast stove;
and part of the fuel gas output by the electrical tar precipitator enters the hot blast stove to be used as fuel of the hot blast stove.
4. The system of claim 1,
further comprising: a dust remover;
the dust remover is connected with the exhaust port of the first cyclone separator;
and the flue gas discharged from the exhaust port of the first cyclone separator enters the dust remover, is dedusted by the dust remover, and is discharged by the dust remover.
5. The system of claim 1,
the carrier, comprising: and (3) ceramic balls.
6. The system of claim 1,
the separation apparatus, comprising: a fan;
the wind output by the fan blows the carbon out of the carrier.
7. The system of claim 1,
the flue gas drying equipment comprises: a flue gas drying pipe;
the flue gas drying pipe is provided with a raw material inlet, a flue gas inlet and a flue gas outlet;
the flue gas inlet of the flue gas drying pipe is connected with the carrier heating pipe, and the outlet of the flue gas drying pipe is connected with the first cyclone separator;
the flue gas output by the carrier heating pipe enters the flue gas drying pipe from the flue gas inlet;
the raw material enters the flue gas drying pipe from the raw material inlet;
the raw material and the flue gas passing through the flue gas drying pipe enter the first cyclone separator through an outlet of the flue gas drying pipe.
8. The system of claim 1,
further comprising: a first screw conveyor;
the first screw conveyor is arranged between the primary raw material bin and the fuel gas purifying pipe;
the raw material output by the primary raw material bin enters the first screw conveyer and is output to the fuel gas purifying pipe through the first screw conveyer.
9. The system of claim 1,
further comprising: a second screw conveyor;
the second screw conveyor is arranged between the secondary raw material bin and the pyrolysis reactor;
and the raw materials output by the secondary raw material bin enter the second screw conveyer and are output to the pyrolysis reactor through the second screw conveyer.
10. The system according to any one of claims 1-9,
further comprising: an air preheater;
the air preheater is arranged between the carrier heating pipe and the flue gas drying equipment;
the air preheater is connected with the hot blast stove;
the flue gas output by the carrier heating pipe enters the air preheater, and enters the flue gas drying equipment after the flue gas exchanges heat with air in the air preheater;
and the preheated air output by the air preheater is used as the combustion air distribution of the hot blast stove.
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| CN201922140833.9U CN211546419U (en) | 2019-12-03 | 2019-12-03 | System for producing fuel gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110862835A (en) * | 2019-12-03 | 2020-03-06 | 嘉禾聚能（天津）科技有限公司 | System for producing fuel gas |
| CN110862835B (en) * | 2019-12-03 | 2024-07-09 | 嘉禾聚能（天津）科技有限公司 | System for producing fuel gas |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110862835A (en) * | 2019-12-03 | 2020-03-06 | 嘉禾聚能（天津）科技有限公司 | System for producing fuel gas |
| CN110862835B (en) * | 2019-12-03 | 2024-07-09 | 嘉禾聚能（天津）科技有限公司 | System for producing fuel gas |
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