CN212581818U - Rice husk gasification coupling gas boiler power generation system - Google Patents
Rice husk gasification coupling gas boiler power generation system Download PDFInfo
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- CN212581818U CN212581818U CN202020883618.8U CN202020883618U CN212581818U CN 212581818 U CN212581818 U CN 212581818U CN 202020883618 U CN202020883618 U CN 202020883618U CN 212581818 U CN212581818 U CN 212581818U
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Abstract
The utility model relates to the technical field of rice hull resource utilization, in particular to a rice hull gasification coupling gas boiler power generation system, which comprises a gasification furnace, a gas fan, a spiral discharging machine, a burner and a gas boiler power generation module; the gas boiler power generation module comprises a gas boiler and a steam turbine generator unit; a material spreading machine for rotary material stirring is arranged in the gasification furnace, and a discharge hole at the bottom of the gasification furnace is communicated with a feed inlet of the spiral discharging machine; one end of the burner is communicated with a hearth of the gas boiler, and the other end of the burner is communicated with a gas production port of the gasification furnace through a gas fan; the rice husk gasification furnace and the existing gas boiler are coupled together for power generation, the prepared rice husk carbon is digested in a steel mill, the prepared gas is sent to the gas boiler for combustion and power generation, the traditional direct-combustion recycling mode is replaced, the rice husk carbon can be prepared, the gas can be used for power generation, efficient clean combustion is realized, the comprehensive utilization value of the rice husk is improved, and the rice husk gasification furnace has better market prospect and economic benefit.
Description
Technical Field
The utility model relates to a rice husk resource utilization technical field, concretely relates to rice husk gasification coupling gas boiler power generation system.
Background
The rice hull is a byproduct of rice processing, belongs to one kind of biomass, and the biomass is used as renewable energy, can partially replace the traditional fossil energy, and has important significance for adjusting the energy structure of China. The existing rice husk utilization mode mainly adopts a direct combustion mode, rice husk direct combustion can generate more flue gas, the flue gas has great pollution to the environment, the investment for flue gas treatment can be increased, and the cost for treating the flue gas is higher.
The rice husk is gasified to prepare the rice husk charcoal. The rice husk carbon has the characteristics of light weight, low heat conductivity, high refractoriness and good heat preservation performance. Therefore, the ladle covering agent is widely applied to steel plants and nonferrous smelting plants, and in addition, surplus gas power stations are built in common large and medium-sized steel plants. Therefore, a system for preparing rice hull carbon and generating power by utilizing rice hull gasification is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to current not enough, provide a rice husk gasification coupling gas boiler power generation system, this system can solve the problem that the rice husk resource retrieval and utilization pollutes greatly.
The purpose of the utility model is realized through the following technical scheme: the application provides a rice husk gasification coupling gas boiler power generation system which comprises a gasification furnace, a gas fan, a spiral discharging machine, a combustor and a gas boiler power generation module; the gas boiler power generation module comprises a gas boiler and a steam turbine generator unit which is arranged on the gas boiler and used for generating power; a material spreading machine for rotary material stirring is arranged in the gasification furnace, and a discharge hole at the bottom of the gasification furnace is communicated with a feed inlet of the spiral discharging machine; one end of the combustor is communicated with a hearth of the gas boiler, and the other end of the combustor is communicated with a gas production port of the gasification furnace through a gas fan.
The gasifier comprises a gasification furnace, a belt conveyor, an air locking feeder, a gasification furnace and a gasification furnace, wherein the gasifier also comprises the belt conveyor and the air locking feeder, the air locking feeder is communicated with the top end of the gasification furnace, and the tail end of the belt conveyor is aligned to a feed inlet of the air locking feeder.
The material spreading machine comprises a rotating motor and a material spreading part fixedly connected with a rotating shaft of the rotating motor.
Wherein, the spiral discharging machine is obliquely and obliquely arranged.
Wherein, the inner wall of the gasification furnace is provided with a water cooling jacket for cooling.
Wherein, the gasification furnace is a downdraft fixed bed gasification furnace.
The utility model has the advantages that: according to the working process of the rice husk gasification coupling gas boiler power generation system, rice husks enter a gasification furnace, a material spreading machine is used for rotationally spreading the materials, so that the rice husks are uniformly spread on a material plate in the gasification furnace, the rice husks move slowly from top to bottom in the gasification furnace and sequentially pass through four stages of drying, pyrolysis, oxidation and reduction to complete the gasification process, rice husk carbon prepared by gasification is discharged through a spiral discharging machine at the bottom of the gasification furnace, the gas prepared by gasification is conveyed to a combustor through a gas fan, the combustor sprays the gas into a combustion boiler for combustion, and heat generated by gas combustion is utilized by a steam turbine generator set for power generation;
the utility model provides a system is in the same place the rice husk gasifier and the original gas boiler power generation system coupling of steelworks, the rice husk charcoal of preparing is with the digestion in the steelworks, the gas of preparing is sent gas boiler burning power generation to, the retrieval and utilization mode of direct combustion in the past has been replaced, can make rice husk charcoal promptly, the utilization efficiency of the rice husk has been improved, can utilize the gas to generate electricity again, the pollution to the environment has been reduced, realize high-efficient clean burning, thereby promote the comprehensive utilization value of rice husk, better market prospect and economic benefits have.
Drawings
Fig. 1 is a schematic structural diagram of a rice husk gasification coupling gas-fired boiler power generation system.
Reference numerals: the device comprises a belt conveyor 1, a gas locking feeder 2, a material spreading machine 3, a gasification furnace 4, a water cooling jacket 5, a gas fan 6, a spiral discharging machine 7, a combustor 8 and a gas boiler 9.
Detailed Description
The invention will be further described with reference to the following examples.
The utility model discloses a rice husk gasification coupling gas boiler power generation system's embodiment please see figure 1, including defeated material machine of belt 1, lock gas batcher 2, gasifier 4, gas fan 6, spiral discharge machine 7, combustor 8 and gas boiler power generation module. The material spreading machine 3 used for rotating and stirring materials is arranged in the gasification furnace 4, the material spreading machine 3 comprises a rotating motor and a material spreading part fixedly connected with a rotating shaft of the rotating motor, and the material spreading machine 3 can uniformly spread rice hulls, so that the gasification rate of the rice hulls in the gasification furnace 4 is improved.
In this embodiment, the gas-locking feeder 2 is communicated with the top end of the gasification furnace 4, the end of the belt conveyor 1 is aligned with the feed inlet (hopper) of the gas-locking feeder 2, and the discharge outlet at the bottom of the gasification furnace 4 is communicated with the feed inlet of the spiral discharger 7. Wherein, spiral discharging machine 7 is the slant slope setting, and it can reach the refrigerated effect of lock gas, with the rice husk charcoal cooling of high temperature, prevents to meet the air loss of burning.
In the present embodiment, the gasification furnace 4 is a downdraft fixed bed gasification furnace 4. The rice husk is added from the top, and through four stages of drying, pyrolysis, oxidation and reduction in proper order, the air that the gasification needs gets into from the middle part of furnace body, and the produced gas of gasification is discharged from the side of furnace body lower part, and the rice husk charcoal is discharged through spiral discharging machine 7 at the bottom. The inner wall of the gasification furnace 4 is provided with a water cooling jacket 5 for cooling, so that the formation of fuel gas and rice husk charcoal can be accelerated. The gasification furnace 4 adopts a downdraft fixed bed gasification furnace 4, has simple structure, reliable operation and low investment, and the gas tar generated by gasification has low content and can be directly fed into a gas boiler 9 for combustion without purification treatment.
In the present embodiment, the gas boiler power generation module includes a gas boiler 9 and a turbo generator set for power generation provided at the gas boiler 9. One end of the combustor 8 is communicated with a hearth of the gas boiler 9, and the other end of the combustor 8 is communicated with a gas production port of the gasification furnace 4 through a gas fan 6. The gas boiler 9 is provided with a turbo generator set for generating electricity. It should be noted that the steam turbine generator unit is a conventional steam turbine generator unit, and specifically, refer to application number 201720192794.5, which is named as a steam turbine generator unit recorded in the AOD furnace flue gas recovery waste heat power generation system, and for those skilled in the art, how to arrange the steam turbine generator unit in the present embodiment, and how to configure the steam turbine generator unit, it is common knowledge.
It should be noted that a typical steam turbine generator unit includes a closed-loop circulating water path, which generates condensed water, and the condensed water of the power generation system can be used as a cooling medium to communicate with the water jacket 5 in the gasification furnace 4, so as to improve the thermal efficiency of the whole system and avoid energy waste.
The working process of the rice husk gasification coupling gas boiler power generation system of this embodiment, the rice husk gets into in the gasifier 4, the rotatory material of spreading out of material machine 3, thereby make the rice husk evenly spread out on the flitch in the gasifier 4, the rice husk is from last to down, the slow movement, pass through drying in proper order, the pyrolysis, oxidation, four stages of reduction, accomplish gasification, the rice husk charcoal that the gasification was prepared is discharged through the spiral discharging machine 7 of gasifier 4 bottom, the gas that the gasification was prepared is carried to combustor 8 through gas fan 6, combustor 8 spouts the gas into the burning boiler with the gas and burns, the high temperature flue gas that the gas burning produced carries out the heat transfer through the heat exchanger with in the gas boiler 9 and produces steam, steam gets into supporting turbo generator set and does work, finally convert the electric energy into.
The system of this embodiment, with rice husk gasifier 4 with current gas boiler 9 electricity generation coupling together, the rice husk charcoal of preparing is with the digestion in the steelworks by oneself, and the gas of preparing is sent to gas boiler 9 combustion power generation, for living beings direct combustion power generation mode, owing to can obtain rice husk charcoal product, the economic nature of project is higher, can not produce the smoke and dust moreover, and the pollutant discharges lower, and is more environmental protection, saves the investment of flue gas treatment equipment. On the other hand, the rice husk carbon can be prepared, and can be widely applied to steel-coated covering agents in smelting industry, and can also be used as carbon-based organic fertilizer to be applied to agriculture and forestry. The gas obtains electric energy through the coupled gas boiler 9 power generation system, realizes high-efficient clean burning. The utilization efficiency of the rice hulls is improved, the fuel gas can be used for generating power, the pollution to the environment is reduced, and efficient clean combustion is realized, so that the comprehensive utilization value of the rice hulls is improved, and the rice hulls have good market prospect and economic benefit.
The above embodiments are only used for the explanation of the technical solution of the present invention, and can not be taken as the limitation of the structure of the present invention. Through this embodiment, the technical mode that also can obtain equal result of use through simple modification or equivalent replacement can be seen by ordinary skilled person and falls into the utility model discloses the right protection scope of technique.
Claims (6)
1. The utility model provides a rice husk gasification coupling gas boiler power generation system which characterized in that: comprises a gasification furnace (4), a gas fan (6), a spiral discharging machine (7), a burner (8) and a gas boiler power generation module;
the gas boiler power generation module comprises a gas boiler (9) and a steam turbine generator unit which is arranged on the gas boiler (9) and used for generating power;
a material spreading machine (3) for rotary material stirring is arranged in the gasification furnace (4), and a discharge hole in the bottom of the gasification furnace (4) is communicated with a feed inlet of a spiral discharging machine (7);
one end of the combustor (8) is communicated with a hearth of the gas boiler (9), and the other end of the combustor (8) is communicated with a gas production port of the gasification furnace (4) through a gas fan (6).
2. The rice husk gasification coupled gas-fired boiler power generation system according to claim 1, wherein: the gasification furnace also comprises a belt conveyor (1) and an air-locking feeder (2), wherein the air-locking feeder (2) is communicated with the top end part of the gasification furnace (4), and the tail end of the belt conveyor (1) is aligned to the feed inlet of the air-locking feeder (2).
3. The rice husk gasification coupled gas-fired boiler power generation system according to claim 1, wherein: the material spreading machine (3) comprises a rotating motor and a material spreading part fixedly connected with a rotating shaft of the rotating motor.
4. The rice husk gasification coupled gas-fired boiler power generation system according to claim 1, wherein: the spiral discharging machine (7) is obliquely and upwards arranged.
5. The rice husk gasification coupled gas-fired boiler power generation system according to claim 1, wherein: the inner wall of the gasification furnace (4) is provided with a water cooling jacket (5) for cooling.
6. The rice husk gasification coupled gas-fired boiler power generation system according to claim 1, wherein: the gasification furnace (4) is a downdraft fixed bed gasification furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883618.8U CN212581818U (en) | 2020-05-22 | 2020-05-22 | Rice husk gasification coupling gas boiler power generation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883618.8U CN212581818U (en) | 2020-05-22 | 2020-05-22 | Rice husk gasification coupling gas boiler power generation system |
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| CN212581818U true CN212581818U (en) | 2021-02-23 |
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| CN202020883618.8U Active CN212581818U (en) | 2020-05-22 | 2020-05-22 | Rice husk gasification coupling gas boiler power generation system |
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- 2020-05-22 CN CN202020883618.8U patent/CN212581818U/en active Active
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