CN218710181U - Poly-generation system for performing pyrolysis, thermoelectricity and plant production coupling on pulverized coal - Google Patents
Poly-generation system for performing pyrolysis, thermoelectricity and plant production coupling on pulverized coal Download PDFInfo
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- CN218710181U CN218710181U CN202222118047.0U CN202222118047U CN218710181U CN 218710181 U CN218710181 U CN 218710181U CN 202222118047 U CN202222118047 U CN 202222118047U CN 218710181 U CN218710181 U CN 218710181U
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Abstract
The utility model discloses a many cogeneration system of fine coal preforming pyrolysis and thermoelectricity and plant production coupling, utilize unit and plant production unit including preforming pyrolysis unit, complementary energy utilize the unit with the low reaches output of preforming pyrolysis unit is connected, plant production unit with the downstream output of complementary energy utilization unit is connected. The pre-forming pyrolysis unit comprises a pulverized coal pre-forming device, an external combustion internal heating vertical pyrolysis furnace and a tar purification device are connected with the pulverized coal pre-forming device, an oil-gas separation device is connected between the external combustion internal heating vertical pyrolysis furnace and the tar purification device, the downstream output end of the oil-gas separation device is connected with a coal gas cooling device, and the residual energy utilization unit comprises a residual energy residual heat utilization boiler connected with the output end of the external combustion internal heating vertical pyrolysis furnace. The utility model discloses can realize that the system is whole zero carbon and discharge, have apparent economic benefits, social and engineering application prospect, the practicality is strong.
Description
Technical Field
The utility model relates to an energy chemical industry, waste heat utilization and biotechnology field specifically are fine coal preforming pyrolysis and thermoelectricity and plant production coupled's poly-generation system.
Background
In recent years, with the annual increase of global fossil energy consumption, environmental pollution caused by fossil fuel combustion is becoming more serious, and people are facing more and more severe environmental tests due to global warming, air pollution and the like. According to the world energy statistics report, from the total consumption of the global primary energy in 2019, the fossil fuel accounts for 84% of the global primary energy consumption. The primary energy consumption increases by 1.3%, the renewable energy consumption increases by 41%, and the natural gas contributes by 36% to increase consumption. And the harm to the environment caused by fossil fuels such as coal, petroleum and the like is particularly serious. The total global energy consumption will increase by 28% between 2015 and 2040 years, with asia contributing the majority of the increments. During the period, the global coal yield will increase by 3% to 85 hundred million tons. By 2040 years, the global energy consumption of fossil energy is still more than 3/4.
The overall structure of energy in China is characterized by rich coal, lack of oil and little gas. Therefore, how to efficiently, cleanly and reasonably utilize coal resources and furthest excavate the substances and energy values contained in the coal has important strategic significance for realizing energy safety and finishing the aim of 'double carbon' in China. As the links of coal powder grinding, high-temperature pyrolysis and the like in the coal chemical industry all need to consume a large amount of energy, even a large amount of electric power and other chemical products are matched with each other to complete a whole set of production flow. The traditional production mode causes a great amount of intermediate products and intermediate energy to be wasted, and the extensive process flow also causes serious environmental pollution. The characteristics of high energy consumption and high pollution of the coal industry are suffered by society for a long time. Therefore, how to reasonably, efficiently and fully utilize coal resource energy, and through systematic design, a new energy system capable of realizing efficient conversion, energy conservation and consumption reduction and environmental friendliness is constructed, and the method has very important significance for realizing energy technology optimal configuration and promoting the healthy development of new energy industry. There is a need for a polygeneration system for pulverized coal pre-forming pyrolysis coupled with thermoelectric and plant production.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fine coal preforming pyrolysis and thermoelectricity and plant production coupled polygeneration system, this the utility model discloses a realize like this:
including preforming pyrolysis unit, complementary energy utilization unit and plant production unit, complementary energy utilization unit with preforming pyrolysis unit's low reaches output is connected, plant production unit with complementary energy utilization unit's low reaches output is connected.
Further, the preforming pyrolysis unit comprises a coal powder preforming device, an external combustion internal heating vertical pyrolysis furnace and a tar purification device are connected with the coal powder preforming device, an oil-gas separation device is connected between the external combustion internal heating vertical pyrolysis furnace and the tar purification device, a coal gas cooling device is connected to the downstream output end of the oil-gas separation device, the residual energy utilization unit comprises a residual energy waste heat utilization boiler connected with the output end of the external combustion internal heating vertical pyrolysis furnace, a steam turbine is connected to the downstream output end of the residual energy waste heat utilization boiler, the steam turbine is connected with a generator, the generator is connected with a switch station, the switch station is connected to a power grid, a smoke purification device is further connected to the output end of the residual energy waste heat utilization boiler, the output end of the smoke purification device is connected with the plant production unit, the plant production unit comprises a photobioreactor and a pasture cultivation system which are connected with the smoke purification device, the downstream output of the photobioreactor is connected with a harvesting and recovery system, the downstream output end of the harvesting recovery system is respectively connected with a methanol and methane production device and an ethanol production device, the output end of the methanol and methane production device and the ethanol production device are connected with a microalgae feed production device, and a microalgae residue production device is provided with a second feed production device.
Further, the tar purification device is connected with a tar storage tank, the downstream output end of the external combustion internal heating vertical pyrolysis furnace is connected with a clean carbon reservoir, the output pipeline of the gas cooling device is connected with the input end of the external combustion internal heating vertical pyrolysis furnace, the gas cooling device is further connected with the gas storage tank, the microalgae harvesting and recovering system is connected with a lipid conversion device, and the lipid conversion device is connected with a biodiesel storage tank.
Further, the methanol and methane production device is connected with a methanol and methane storage tank, the photobioreactor and the pasture cultivation system are both provided with an electric light source and a sunlight source, and a molecular sieve is connected between the photobioreactor and the combustor.
Compared with the prior art, the beneficial effects of the utility model are that: the system couples coal pre-forming pyrolysis coal grading and quality-grading utilization, complementary energy waste heat cogeneration and super plant production processes to construct a substance and energy production cycle, wherein the pre-forming pyrolysis process further recovers the waste heat of a pyrolysis furnace, provides power and heat supply products for the system, and improves the system efficiency; the surplus energy can be used to obtain electric energy and heat energy products, and oxygen-enriched gas obtained in the plant production process is efficiently utilized; the super plant production provides extra illumination by electro-light and sunlight, is composed of a photobioreactor, a pasture cultivation system and a microalgae harvesting and recovering system, can further provide substance and energy input for a biological methanol (methane) unit, a biological ethanol unit and a lipid conversion unit, realizes zero carbon emission in the production process of products such as biodiesel, ethanol, gasoline and the like, and residues in the chemical process can be further used for feed production. The utility model discloses can realize that the system is whole zero carbon and discharge, have apparent economic benefits, social and engineering application prospect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a system for utilizing waste heat by using a steam turbine according to the present invention;
FIG. 2 is a schematic diagram of the system for utilizing waste heat of the internal combustion engine according to the present invention;
the system comprises a pulverized coal preforming device 1, a tar purifying device 2, a tar storage tank 3, an oil-gas separating device 4, a coal gas cooling device 5, a coal gas storage tank 51, an external combustion and internal heating vertical pyrolysis furnace 6, a clean carbon warehouse 7, a power grid switching station 8, a power grid 9, a power generator 10, a steam turbine 11, a combustion engine 111, a combustor 12, a premixer 121 and a residual energy waste heat utilization boiler 13, a flue gas purifying device 14, an electric light source 15, a sunlight source 16, a photobiological reactor 17, a first feed warehouse 18, a pasture culturing system 19, a molecular sieve 20, a microalgae harvesting and recovering system 21, a lipid converting unit 22, a biodiesel product storage tank 23, a methanol and methane production device 24, an ethanol production device 25, an ethanol storage tank 26, an ethanol storage tank 27, a residue feed preparation device 28, a methanol and methane storage tank 29 and a second feed warehouse 29.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the system comprises a pre-forming pyrolysis unit, a complementary energy utilization unit and a plant production unit, wherein the complementary energy utilization unit is connected with a downstream output end of the pre-forming pyrolysis unit, and the plant production unit is connected with a downstream output end of the complementary energy utilization unit.
In this embodiment, the preforming pyrolysis unit includes coal powder preforming device 1, with coal powder preforming device 1 is connected with outer burning internal heating vertical pyrolysis furnace 6 and tar purification device 2, outer burning internal heating vertical pyrolysis furnace 6 with be connected with oil-gas separation device 4 between tar purification device 2, the downstream output of oil-gas separation device 4 is connected with coal gas cooling device 5, the residual energy utilization unit include with the residual energy waste heat utilization boiler 13 that outer burning internal heating vertical pyrolysis furnace 6's output is connected, the downstream output of residual energy waste heat utilization boiler 13 is connected with steam turbine 11, steam turbine 11 is connected with generator 10, generator 10 is connected with switch station 8, switch station 8 inserts electric wire netting 9, the output of residual energy waste heat utilization boiler 13 still is connected with gas cleaning device 14, gas cleaning device 14's output with the plant production unit is connected, the plant production unit includes photobiological reactor 17 and pasture grass cultivation system 19 that with gas cleaning device 14 is connected, the downstream output of photobiological reactor 17 is connected with little algae results recovery system 21, little algae results recovery system 21's output is connected with methanol production device 24 and methane production device 24 respectively, production device 25, the second fodder production device 20, the fodder production device 20 is connected with second fodder molecule fodder production device 27, and fodder production device is connected with the meal production device 27.
In this embodiment, the tar purification device 2 is connected to a tar storage tank 3, the downstream output end of the external combustion internal heating vertical pyrolysis furnace 6 is connected to a clean carbon reservoir 7, the output pipeline of the gas cooling device 5 is connected to the input end of the external combustion internal heating vertical pyrolysis furnace 6, and the gas cooling device 5 is further connected to a gas storage tank 51. The microalgae harvesting and recovering system 21 is connected with a lipid conversion device 22, and the lipid conversion device 22 is connected with a biodiesel storage tank 23.
In this embodiment, the methanol and methane production apparatus is connected to a methanol and methane storage tank 28, and the photobioreactor 17 and the pasture cultivation system 19 are both provided with an electric light source 15 and a sunlight source 16.
The preforming pyrolysis process unit is connected with a residual energy utilization unit, the residual energy utilization unit is connected with a super plant production unit, and materials and energy are mutually conveyed among the units; one path of outlet of the external combustion internal heating vertical pyrolysis furnace is connected with clean carbon to obtain a final product, the other path of outlet of cooled coal gas is connected with oil-gas separation equipment after being mixed with the coal gas at the outlet of the bypass, the oil-gas separation equipment is respectively connected with tar purification equipment and a coal gas cooling device, the product obtained by the tar purification equipment is connected with a tar storage tank to be sold as a chemical product, and tar residues enter a coal powder preforming device again to carry out the next pyrolysis cycle; one path of the outlet of the gas cooling device is connected with the gas inlet of the pyrolysis furnace and enters the annular combustion chamber of the pyrolysis furnace for combustion, and the other path of the outlet is connected with the cooling gas inlet to cool the clean carbon product of the thermal cleaning furnace and enters the oil-gas separation equipment through the cooling gas outlet. And the residual coal gas at the outlet of the coal gas cooling device is connected with the inlet of the combustor, and the residual coal gas is connected with the coal gas storage tank.
The coal gas of the preforming pyrolysis unit and the oxygen-enriched air or oxygen of the super plant production unit enter the combustor to be combusted, the outlet of the combustor is connected with a waste heat utilization boiler, the smoke outlet of the waste heat utilization boiler is connected with a smoke purification device, and the smoke purification device is connected with the super plant production unit. The steam outlet of the waste heat utilization boiler is connected with a steam turbine, the steam turbine is connected with a generator, and the generator is connected with a switch station. The smoke outlet of the external-combustion internal-heating vertical pyrolysis furnace is connected with the smoke inlet of the waste heat utilization boiler and can be used as a supplementary energy source of the waste heat boiler.
And the smoke at the outlet of the internal combustion engine is connected with a waste heat utilization boiler and is used as a supplementary energy source of the waste heat utilization boiler. And the steam at the outlet of the waste heat utilization boiler directly enters a heat supply pipeline to be sold as a product.
The light source module comprises an electric light source and a sunlight source, the electric light source receives electric power from a power grid switching station and provides illumination for the photobioreactor and the forage grass cultivation system together with the sunlight source, the flue gas purification device and the nutrients are respectively connected with a flue gas inlet and a nutrient inlet of the photobioreactor and the forage grass cultivation system, a product outlet of the photobioreactor is connected with a microalgae harvesting and recovering system, and a product outlet of the forage grass cultivation system is connected to a first forage warehouse. The oxygen-enriched air outlet is connected with a molecular sieve, and the molecular sieve is connected with a combustor.
The second embodiment of the present invention, as shown in fig. 2, comprises the technical features of embodiment 1, the steam turbine 11 in embodiment 1 is replaced by the internal combustion engine 111, the coal gas from the coal gas cooling device 5 and the oxygen-enriched air or oxygen filtered by the molecular sieve are introduced into the internal combustion engine for combustion after passing through the internal combustion engine premixer 121, the generator 10 is driven to generate electricity, and the flue gas after combustion then enters the waste heat utilization boiler 13 for heating steam.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The poly-generation system for performing pyrolysis and coupling thermoelectricity on pulverized coal and producing plants is characterized in that: including preforming pyrolysis unit, complementary energy utilization unit and plant production unit, complementary energy utilization unit with preforming pyrolysis unit's low reaches output is connected, plant production unit with complementary energy utilization unit's low reaches output is connected.
2. The polygeneration system for performing pyrolysis on pulverized coal and coupling heat power and plant production according to claim 1, wherein the performing pyrolysis unit comprises a pulverized coal performing device (1), an external combustion internal heating vertical pyrolysis furnace (6) and a tar purification device are connected with the pulverized coal performing device (1), an oil-gas separation device (4) is connected between the external combustion internal heating vertical pyrolysis furnace (6) and the tar purification device, a coal gas cooling device (5) is connected with a downstream output end of the oil-gas separation device, the residual energy utilization unit comprises a residual energy residual heat utilization boiler (13) connected with an output end of the external combustion internal heating vertical pyrolysis furnace (6), a steam turbine (11) is connected with a downstream output end of the residual energy residual heat utilization boiler (13), the steam turbine (11) is connected with a generator (10), the generator (10) is connected with a switch station (8), the switch station (8) is connected with an electric grid (9), an output end of the residual energy residual heat utilization boiler (13) is further connected with a flue gas purification device (14), an output end of the flue gas purification device (14) is connected with the plant production unit, the plant production unit comprises a photo-optical bioreactor (19) connected with the flue gas purification device (14), and a grass harvesting reaction system (17) for culturing microalgae, and a downstream harvesting reaction system (17) for recovering microalgae (17), the downstream output end of the microalgae harvesting and recovering system (21) is respectively connected with a methanol and methane production device (24) and an ethanol production device (25), the output ends of the methanol and methane production device (24) and the ethanol production device (25) are connected with a residue feed preparation device (27), and a second feed warehouse (29) is arranged on the residue feed preparation device (27) in a matched mode.
3. The pulverized coal pre-forming pyrolysis and heat and power and plant production coupled poly-generation system as claimed in claim 2, characterized in that an electric light source (15) and a solar light source (16) are provided on both the photobioreactor (17) and the pasture cultivation system (19).
4. The system for performing pyrolysis on pulverized coal and coupling heat power and plant production as claimed in claim 2, wherein the tar purification device is connected with a tar storage tank (3), the downstream output end of the external combustion internal heating vertical pyrolysis furnace (6) is connected with a clean carbon reservoir (7), the output pipeline of the gas cooling device is connected with the input end of the external combustion internal heating vertical pyrolysis furnace (6), and the gas cooling device (5) is further connected with a gas storage tank (51).
5. The pulverized coal preforming pyrolysis and heat and power and plant production coupled poly-generation system according to claim 2, characterized in that a burner (12) is connected between the gas cooling device (5) and the complementary energy waste heat utilization boiler (13), the microalgae harvesting and recovering system (21) is connected with a fat conversion device (22), and the fat conversion device (22) is connected with a biodiesel storage tank (23).
6. The pulverized coal preforming pyrolysis and heat and power and plant production coupled polygeneration system as claimed in claim 2, wherein the pasture grass cultivation system (19) is provided with a first feed warehouse (18) in a matching manner, the ethanol production device (25) is connected with an ethanol storage tank (26), the methanol and methane production device (24) is connected with a methanol and methane storage tank (28), and a molecular sieve (20) is connected between the photobioreactor (17) and the combustor (12).
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| CN202222118047.0U CN218710181U (en) | 2022-08-12 | 2022-08-12 | Poly-generation system for performing pyrolysis, thermoelectricity and plant production coupling on pulverized coal |
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| CN202222118047.0U CN218710181U (en) | 2022-08-12 | 2022-08-12 | Poly-generation system for performing pyrolysis, thermoelectricity and plant production coupling on pulverized coal |
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