TW202144553A - Composite fixed-bed combustion and gasification assembly - Google Patents

Abstract

A composite fixed-bed combustion and gasification assembly includes a reactor, an air supply device, an energy gathering device, and a waste gathering device. A reaction chamber of the reactor has a plurality of reaction tanks for accommodating biofuels. Thus, a heating portion of the reactor heats each reaction tank to thereby result in the combustion and gasification reaction of each reaction tank individually and avoid incomplete reaction. Then, the air supply device cooperates with the input of the gaseous oxidant to result in the high-temperature reaction of the biofuels and the gaseous oxidant, and simultaneously achieve energy conversion which is collected by the energy gathering device to thereby effectively increase the conversion efficiency of combustion and gasification to further provide electric energy and heat energy and satisfy usage requirements.

Description

Compound fixed bed combustion/gasification reaction assembly

The present invention relates to the design of a fixed-bed combustion/gasification reactor, in particular to a composite fixed-bed combustion/gasification reaction assembly.

In recent years, the limitation and shortage of natural resources, as well as the greenhouse effect caused by the substantial increase in carbon dioxide in recent years, which has caused global warming and other thermal pollution environmental problems have received extensive attention. Therefore, the use of biomass fuel has been widely used in many countries. At present, the conversion of biomass fuel into biomass energy is the fourth largest energy source in the world. Biomass energy is a kind of renewable energy and is as inexhaustible and inexhaustible as wind energy and solar energy. Characteristic and friendly to the environment, it is second only to petroleum, coal and natural gas, and biomass fuel generally refers to organic substances produced by living things, such as waste wood, wood chips from forestry wastes, crops or agricultural wastes, etc. , can be effectively converted into electricity and heat and other usable energy.

Therefore, in the part of the biomass power generation system, it is mainly to use the biomass in batches, that is, first carbonize or gasify the biomass to generate biomass fuel with higher energy density, and then guide the biomass fuel to pulverized coal. Combustion system or turbine combustion system is used for combustion, so that it can be converted into energy supply of electricity and heat; however, due to the different sources of biomass fuel, the characteristics of fuel are inconsistent, and its calorific value is low, and it also has high water content. Therefore, when processing, it is burned in a general large-scale stationary reactor in a specific place, not only the processing process and timing are limited, but also the raw materials to be used for fuel must be transported and stored. The maintenance costs are paid, and the biomass fuel must also be heat treated before combustion, which will generate additional energy consumption and costs, and still cannot effectively reduce the ash formed after combustion. If it is mixed with pulverized coal When burning, the biomass fuel must be pulverized and ground to a minimum, so that it can be evenly mixed with the pulverized coal to accelerate the complete combustion. The combustion characteristics of biomass fuels and fossil fuels are different. If the existing reactors are mixed together and burned together, there will often be unstable combustion and incomplete reaction due to the different particle sizes of biomass fuels. The phenomenon occurs, and the effect of the generated electricity and heat energy is still limited, which needs to be improved.

Therefore, the purpose of the present invention is to provide a composite fixed-bed combustion/gasification reaction assembly, by which the reactor has a plurality of reaction tanks for solid biomass fuel, so that biomass fuel can be completely produced The thermal cracking combustion reaction greatly improves the thermal cracking and gasification effect of the biomass fuel in the reactor, and effectively improves the combustion efficiency of the conversion of electricity and heat.

Therefore, the present invention is a composite fixed-bed combustion/gasification reaction assembly, including a reaction furnace, a gas supply device, an energy collection device and a waste collection device; wherein, a reaction chamber is formed in the reaction furnace, and a Rectification section, a heating part located between the reaction chamber and the rectification section, an ash discharge part located at one end of the furnace body and connected to the rectification section and the waste collection device respectively, at least one is located on one side of the furnace body And the gas inlet communicated with the rectification section and connected with the gas supply device, on the other hand, the gas inlet is arranged on the other side of the furnace body and communicated with the reaction chamber and is connected with the energy collection device. The gas outlet , and a plurality of reaction tanks located in the reaction chamber and set on the heating part and communicated with the rectifying section, and the aforementioned reaction tank can just be used for the biomass fuel to be placed, and through the heating effect of the heating part and in Combustion and gasification reactions are generated in the reaction tank, and converted into energy, which is moved to the gas outlet, and collected by the energy collection device to effectively improve the combustion and gasification of thermal energy. The combustible gas is converted into electricity and heat. At the same time, the combination of mobile carriers can be used, so that the combustion and gasification of biomass fuel can be processed flexibly, and it is not necessary to limit the processing time to the same place. It is too tedious and reduces the cost of transportation and storage maintenance between the biomass fuel and the energy utilization plant, that is, it can be directly processed on-site immediately, and the biomass fuel combustion reaction is converted into energy use in an uninterrupted manner. The setting of the reaction tank can effectively make the biomass fuel carry out the combustion/gasification reaction individually, and produce a high-temperature reaction with the input gaseous oxidant, and there will be no incomplete reaction, and the energy can be effectively converted into energy by the energy The collection device collects and converts it into the demand for the efficient use of the electricity and heat provided.

FIG. 1 is a schematic diagram of a preferred embodiment of the present invention. FIG. 2 is a schematic diagram of the operation of the preferred embodiment. FIG. 3 and FIG. 4 are schematic diagrams of the operation of the partial components of the preferred embodiment. FIG. 5 is a comparison diagram of the converted ash after the combustion reaction of the present invention and the conventional conventional reactor.

The foregoing and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of the preferred embodiments with reference to the drawings.

1, a preferred embodiment of the present invention, the composite fixed bed combustion/gasification reaction assembly 3 in this embodiment includes a reaction furnace 31, and a gas supply device 32, An energy collection device 33 and a waste collection device 34; wherein, the reaction furnace 31 is respectively formed with a reaction chamber 311, a rectification section 312, a heating part 313 between the reaction chamber 311 and the rectification section 312, a The ash discharge part 314 provided at one end of the reaction furnace 31 and connected with the rectification section 312, at least one air inlet 315 provided at one side of the reaction furnace 31 and communicated with the rectification section 312, on the contrary, the air inlet 315 and a gas outlet 316 located on the other side of the reaction furnace 31 and communicated with the reaction chamber 311, and a plurality of reaction tanks 317 located in the reaction chamber 311 and located on the heating portion 313 and communicated with the rectifying section 312, The above-mentioned reaction tank 317 is just suitable for placing a biomass fuel a, and through the heating action of the heating part 313, combustion/gasification is generated in the reaction tank 317, and converted into energy to move to the gas outlet 316 for output, The number of the air inlets 315 can be two, the following is an example of two, and the biomass fuel a is a solid biomass carbon, pulverized coal, biomass (such as wood chips), or At least one selected from the group is formed by mixing the above-mentioned ones, and the biomass fuel a can be shaped into a cylindrical shape, and at the same time, in this embodiment, the ash accumulated in the rectifying section 312 can be effectively controlled to be discharged smoothly In particular, a control valve 318 is provided between the rectification section 312 and the ash discharge portion 314, and an air guide unit 319 is connected to one side of the ash discharge portion 314. Through the control of the control valve 318, the accumulated in the rectifier can be effectively removed. The ash in the section 312 reaches the ash discharge part 314, and then cooperates with the air outlet of the air guide unit 319 to assist the ash discharge part 314 to discharge the ash to the outside.

In addition, the gas supply device 32 is connected to the air inlet 315, and can supply a gaseous oxidant and input through the air inlet 315, so that the gaseous oxidant rushes to the reaction tank 317 to accelerate the biomass fuel a Thermal reaction, and the ash after combustion will fall into the rectifying section 312 for collection, and the gaseous oxidant supplied by the gas supply device 32 can be oxygen, nitrogen and a mixture of oxygen/nitrogen, and the gas supply device 32 can According to the different reaction modes, the components and proportions are adjusted and supplied; as for the energy collection device 33 is connected to the gas outlet 316 to collect and collect the energy converted from the combustion of the biomass fuel a; finally, the waste is collected and collected The device 34 is connected to the ash discharge part, so as to collect and collect the ash discharged from the ash discharge part 314; especially, in this embodiment, the fixed bed combustion/gasification reaction assembly 3 can be installed according to the installation site. As required by planning, there is also a carrier 4 for installing the reactor 31, gas supply device 32, energy collection device 33 and waste collection device 34, and the carrier 4 is a movable device , it can be installed and set in a fixed place in a positioning setting to meet the needs of site combustion operations, or it can be moved to any desired place for use in different forms of planning and setting, as shown in Figure 2.

Referring to FIG. 2 , before the operation of this embodiment is carried out, components such as the reaction furnace 31 , the gas supply device 32 , the energy collection device 33 and the waste collection device 34 are respectively arranged on a moving carrier 4 (all shown in the figure as shown in Fig. 2 ). Schematic representation), in this way, the compound fixed-bed combustion/gasification reaction assembly 3 can be moved to any site for immediate processing operations. Of course, multiple groups of this can also be performed appropriately and flexibly according to requirements. A composite fixed-bed combustion/gasification reaction assembly 3 is provided to facilitate the conversion efficiency of a large number of combustion/gasification reactions at the same time; therefore, during operation, the reaction tanks 317 are placed one by one on the reaction tanks 317 for combustion/gasification. The gasified cylinder-shaped biomass fuel a, and then through the heating action of the heating part 313, the biomass fuel a in each reaction tank 317 can undergo combustion/gasification reaction, and at the same time, the biomass fuel a in each reaction tank 317 can be used for combustion/gasification. The gas supply device 32 connected to the gas port 315 appropriately inputs the gaseous oxidant so that the gaseous fuel generates a line-cut gas-feeding reaction assisting effect from the direction of the rectifying section 312 relative to the reaction tanks 317 during the input process, so that the gaseous fuel is fed. The oxidant can be uniformly distributed in the reaction tanks 317, that is, as shown in FIG. 3, the high temperature strength in the reaction chamber 311 can be effectively improved, and the combustion and gasification reaction of the biomass fuel a in the reaction tanks 317 can be accelerated. Therefore, by utilizing the arrangement of the reaction chamber 311 having a plurality of the reaction tanks 317, each biomass fuel a placed in the reaction chamber 311 can be greatly improved by its own combustion/gasification and heat energy release. First, the reaction tank 317 has an abnormality, so that the biomass fuel a placed in it cannot really produce a complete combustion reaction. Since the biomass fuel a is not mixed and doped together, it is located in the reaction chamber 311. The biomass fuel a in the other reaction tanks 317 can still continue to react without being affected, and can also effectively and completely generate the heat energy release of the combustible product gas of combustion or gasification, and input through the gas outlet 316 And collected by the energy collection device 33 for conversion into usable energy for use, and the ash formed after the biomass fuel a is completely burned will fall in the rectification section 312 for collection until the reaction operation is completed. Then, through the control of the control valve 318, the ash accumulated in the rectifying section 312 falls to the ash discharge part 314, and at the same time, the impact force of the input gas of the gas unit 319 is properly activated, as shown in FIG. 4, to assist The ash discharge part 314 completely introduces the ash into the waste collection device 34 for unified collection, and then processes the abnormal and unreacted reaction tank 317; therefore, the reaction furnace 31 is used to have these reactions The setting of the tank 317 can effectively make the biomass fuel a conduct combustion/gasification reaction individually, and produce high temperature reaction with the input gaseous oxidant, so that the input biomass fuel a can be effectively and completely converted into Ash, which does not require additional energy for processing, is different from the reaction operation performed by the traditional single reaction furnace, and only part of it is converted into ash, so it will not There is an incomplete reaction, as shown in Figure 5, which can be effectively converted into energy to be collected and collected by the energy collection device 33, and converted into the electricity and heat provided by the efficiency of use, so no matter the energy The composite fixed-bed combustion/gasification reaction assembly 3 is installed in a fixed manner, or through the integration of a carrier 4 to perform a flexible mobile setting for combustion/gasification reaction operations. All can be efficiently converted into usable energy use efficiency.

As can be seen from the above description, the present invention does have the following advantages and effects:

1. The present invention integrates the equipment required for the combustion conversion operation into a mobile carrier 4, which not only has mobility, but also can perform multiple sets of the compound fixed-bed combustion/gasification according to the needs and flexibility. The reaction assembly 3 is arranged, so that the compound fixed-bed combustion/gasification reaction assembly 3 can be moved to any site for processing operations, so as to greatly improve the conversion efficiency of the combustion/gasification reaction at the same time.

2. Continuing the above, by being located in the reaction furnace 31 with a plurality of reaction tanks 317 located in the reaction chamber 311 and provided on the heating portion 313 and communicated with the rectifying section 312, if there is one of the reaction tanks 317 If it is blocked or the biomass fuel cannot be burned, it will not affect the combustion of other biomass fuels in the reaction tank 317, and it can also effectively make the biomass fuel a separate combustion/gasification reaction, and Produces a high temperature reaction with the input gaseous oxidant, without the occurrence of unstable and incomplete reaction, effectively improving the combustion/gasification reaction efficiency, greatly enhancing the release of heat energy from combustion and the release of combustible gas from gasification, and converting Demand for the performance of the provided electricity and heat.

Summarizing the foregoing, the present invention mainly utilizes the movable movement of the compound fixed-bed combustion/gasification reaction assembly to carry out the combustion/gasification conversion of biomass fuel, and at the same time, the reactor has a plurality of solid-state The setting of the reaction tank where the biomass fuel is placed, and the tangential air intake method of the rectification section can effectively make the biomass fuel undergo combustion/gasification reaction individually, and produce a high temperature reaction with the input gaseous oxidant, instead of There will be an incomplete reaction, so it can greatly enhance the release of the heat energy of combustion and the combustible gas produced by gasification, and accelerate the combustion/gasification of the biomass fuel, so that the heat energy in the reaction chamber can be fully transferred, Then, the heat energy generated after combustion and the combustible product gas after gasification can be effectively outputted and converted into the demand for efficient use of electricity and heat, so as to be effectively converted into usable energy for use.

However, the above descriptions are only to illustrate the preferred embodiments of the present invention, and should not limit the scope of implementation of the present invention. , shall still fall within the scope covered by the patent of the present invention.

(this invention) 3: Composite fixed bed combustion/gasification reaction assembly 31: Reactor 32: Gas supply device 33: Energy Harvesting Device 34: Waste collection device 311: Reaction Chamber 312: Rectifier section 313: Heating Department 314: Ash discharge department 315: Air intake 316: Gas outlet 317: Reaction tank 318: Control valve 319: Air guide unit a: Biofuel 4: Carrier

3: Composite fixed bed combustion/gasification reaction assembly

31: Reactor

32: Gas supply device

33: Energy Harvesting Device

34: Waste collection device

311: Reaction Chamber

312: Rectifier section

313: Heating Department

314: Ash discharge department

315: Air intake

316: Gas outlet

317: Reaction tank

318: Control valve

319: Air guide unit

a: Biofuel

Claims (9)

A compound-type fixed-bed combustion/gasification reaction assembly, which is used for converting solid biomass fuel into supply energy, and the compound-type fixed-bed combustion/gasification reaction assembly includes a reaction furnace, and respectively A gas supply device, an energy collection device and a waste collection device connected to the reaction furnace; wherein, a reaction chamber, a rectification section, and a heating device located between the reaction chamber and the rectification section are respectively formed in the reaction furnace part, an ash discharge part located at one end of the reaction furnace and connected to the rectification section and the waste collection device respectively; at least one air inlet set at one side of the reaction furnace and communicated with the rectification section; The gas inlet is located on the other side of the reaction furnace and is connected with the gas outlet of the reaction chamber, and a plurality of reaction tanks are located in the reaction chamber and are located on the heating part and communicated with the rectifying section, and the above-mentioned reaction The tank is just for the biomass fuel to be placed, and the biomass fuel is heated and reacted in the reaction tank through the heating effect of the heating part, and is converted into energy and moved to the gas outlet for output; in addition, the gas supply The device is connected to the air inlet, and can supply gaseous oxidant and enter the rectification section through the air inlet to provide the reaction of the biomass fuel, and the ash after the reaction will fall into the rectification section for collection, and then pass through the rectification section. The ash discharge part is discharged to the waste collection and collection device; as for the energy collection and collection device, the gas outlet is connected to collect the converted energy. According to claim 1 of the scope of the application, the composite fixed-bed combustion/gasification reaction assembly further includes a carrier, which can be used for the reactors, gas supply devices, energy collection devices and waste collection devices. on above. According to the composite fixed-bed combustion/gasification reaction assembly as claimed in claim 1 of the scope of the application, wherein the number of reaction tanks in the reaction furnace exceeds two or more. The composite fixed-bed combustion/gasification reaction assembly according to claim 1 of the scope of the application, wherein the biomass fuel can be biomass carbon, pulverized coal, biomass material, or any of the above-mentioned mixtures to form a group. Choose at least one of them. The composite fixed-bed combustion/gasification reaction assembly according to claim 4 of the scope of the application, wherein the biomass material is wood chips. According to the composite fixed-bed combustion/gasification reaction assembly as claimed in claim 1 of the scope of the application, wherein the gaseous oxidant can be oxygen, nitrogen, or a mixture of oxygen/nitrogen. The composite fixed-bed combustion/gasification reaction assembly according to claim 1 of the scope of the application, wherein the reactor is provided with a control valve between the rectification section and the ash discharge section. The composite fixed-bed combustion/gasification reaction assembly according to claim 1 of the scope of the application, wherein a gas guide unit is connected to one side of the ash discharge part. According to the composite fixed-bed combustion/gasification reaction assembly according to claim 1 of the scope of the application, the number of the air inlets can be two, so that the input gaseous oxidant can form a line-cut air inlet shape set up.

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