Biomass gasification pyrolysis reactor

Abstract

The utility model discloses a biomass gasification pyrolysis reactor, and relates to the technical field of pyrolysis reaction. The device comprises a sealing bin, a combustion chamber is arranged on one side in the sealing bin, a combustor is installed in the combustion chamber, an ash collecting chamber is arranged on the other side in the sealing bin, one side of the ash collecting chamber is designed to be open, and a material blocking plate is detachably arranged on the inner top wall of the ash collecting chamber; and the reaction furnace body is fixedly embedded right above the ash collecting chamber, and the reaction furnace body is columnar. Chemical fuel is combusted through the combustor, water stored in the stainless steel cylinder is heated, hot water is generated, meanwhile, water vapor is generated and can serve as a gasifying agent for biomass pyrolysis reaction, meanwhile, high-temperature smoke is generated, and the high-temperature smoke is transmitted into the reaction furnace body through the heat conduction pipe and serves as a heat source for biomass pyrolysis reaction. And through an efficient heat transfer mechanism and an optimized production process, the energy conversion rate is remarkably improved, and resource waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pyrolysis reaction equipment, in particular to a biomass gasification pyrolysis reactor. Background Art

[0002] With the increasing depletion of fossil fuels and the intensification of environmental pollution, it has become an urgent need to find renewable energy as an alternative energy source. As an abundant renewable resource, biomass has received extensive attention for its conversion and utilization. Biomass gasification and pyrolysis is an effective biomass conversion technology that converts biomass into combustible gases (such as hydrogen and carbon monoxide) under high temperature, oxygen-free or oxygen-deficient conditions.

[0003] Traditional biomass gasification pyrolysis reactors generally maintain the reaction temperature by directly acting a heating device on the pyrolysis furnace body. With this structural design, some energy (such as tail gas heat energy) cannot be fully utilized and the energy conversion rate is low. Therefore, we propose a biomass gasification pyrolysis reactor to solve the above problems. Summary of the invention

[0004] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0005] A biomass gasification pyrolysis reactor, comprising:

[0006] A sealed bin, one side of which is a combustion chamber, a burner is installed inside the combustion chamber, and the other side of the sealed bin is an ash collecting chamber, one side of the ash collecting chamber is an open design, and a material baffle plate is detachably provided on the inner top wall of the ash collecting chamber;

[0007] A reaction furnace body is fixedly embedded just above the ash collecting chamber, the reaction furnace body is columnar, and its upper and lower ends are open structures, the upper port of the reaction furnace body is slidably connected to the baffle plate, the upper port of the reaction furnace body is threadedly connected to a furnace cover, an upper side of the reaction furnace body is connected to an air outlet pipe, the inner wall of the reaction furnace body is provided with a catalyst carrier, the catalyst carrier is an annular porous ceramic, and a nickel-based catalyst is evenly distributed inside the catalyst carrier;

[0008] A heat conducting pipe is connected to the combustion chamber, and the other end of the heat conducting pipe penetrates the bottom side wall of the reaction furnace body and slides through the furnace cover to extend to the outside of the reaction furnace body;

[0009] A gas delivery component is arranged on the top of the combustion chamber, and is used to deliver water vapor as a gasifying agent into the reaction furnace body.

[0010] Furthermore, the gas delivery assembly includes a stainless steel cylinder embedded in the top of the combustion chamber, an annular tube is fixedly provided on the bottom side of the reaction furnace body, a guide tube is connected between the top of the stainless steel cylinder and the annular tube, the upper annular array of the annular tube is connected to a mounting tube, the surface of the mounting tube is connected to air intake pipes at equal intervals, and the air intake pipes penetrate the outer wall of the reaction furnace body and extend into the interior of the reaction furnace body.

[0011] Furthermore, one side of the top of the stainless steel cylinder is connected to a water injection pipe, and one side below is connected to a drainage pipe.

[0012] Furthermore, a section of the heat conducting pipe located inside the reaction furnace body is vertically arranged and located on the central axis of the reaction furnace body.

[0013] Furthermore, the ratio of the inner diameter of the reaction furnace body, the thickness of the catalyst carrier and the outer diameter of the heat conduction pipe is 4:1:2.

[0014] Furthermore, a guide groove is configured above the inner side wall of the ash collecting chamber, and the baffle plate is slidably inserted into the guide groove.

[0015] Furthermore, a guide groove is configured above the inner side wall of the ash collecting chamber, and the baffle plate is slidably inserted into the guide groove.

[0016] Furthermore, a guide plate is fixedly provided inside the ash collecting chamber below the material baffle plate, and the guide plate is arranged to be inclined downward.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model burns chemical fuel through a burner to heat water stored in a stainless steel cylinder, and while producing hot water (the hot water can be taken), the generated water vapor can be used as a gasification agent for biomass pyrolysis reaction. At the same time, high-temperature flue gas is generated, and the high-temperature flue gas is transferred to the reaction furnace body through a heat pipe, and serves as a heat source for biomass pyrolysis reaction. Through an efficient heat transfer mechanism and an optimized production process, the energy conversion rate is significantly improved and resource waste is reduced.

[0019] The utility model adopts an integrated design, combining the combustion chamber, the ash collecting chamber and the reaction furnace body, simplifying the overall structure. At the same time, the device has a simple structure, is easy to operate, and is convenient for daily maintenance and overhaul, and is worthy of widespread application and promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a top view schematic diagram of the utility model;

[0022] Figure 3 This utility model Figure 2 Schematic diagram of the cross-section along the AA direction.

[0023] Figure numerals: 1. Sealed chamber; 2. Combustion chamber; 201. Ventilation fence; 3. Burner; 4. Ash collection chamber; 401. Guide groove; 402. Guide plate; 5. Material baffle plate; 6. Reactor body; 601. Furnace cover; 602. Air outlet pipe; 7. Catalyst carrier; 8. Heat conduction pipe; 9. Gas transmission assembly; 901. Stainless steel cylinder; 9011. Drain pipe; 902. Annular pipe; 903. Flow guide pipe; 904. Mounting pipe; 905. Air inlet pipe. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0025] The present application provides a biomass gasification pyrolysis reactor, which is mainly used to solve the problem that the conventional biomass gasification pyrolysis reactor in the prior art generally maintains the reaction temperature by directly acting a heating device on the pyrolysis furnace body. In this structural design, some energy (such as tail gas heat energy) cannot be fully utilized, and the energy conversion rate is low. The following technical solutions are provided:

[0026] A biomass gasification pyrolysis reactor, comprising:

[0027] A sealed bin 1, one side of which is a combustion chamber 2, a burner 3 is installed inside the combustion chamber 2, and the other side of the sealed bin 1 is an ash collecting chamber 4, one side of the ash collecting chamber 4 is an open design, and a material blocking plate 5 is detachably provided on the inner top wall of the ash collecting chamber 4;

[0028] The reaction furnace body 6 is fixedly embedded just above the ash collecting chamber 4. The reaction furnace body 6 is columnar, and its upper and lower ends are open structures. The upper port of the reaction furnace body 6 is slidably connected to the baffle plate 5. The upper port of the reaction furnace body 6 is threadedly connected with a furnace cover 601. An air outlet pipe 602 is connected to the upper side of the reaction furnace body 6. The inner wall of the reaction furnace body 6 is provided with a catalyst carrier 7. The catalyst carrier 7 is an annular porous ceramic, and a nickel-based catalyst is evenly distributed inside the catalyst carrier 7.

[0029] The heat conducting pipe 8 is connected to the combustion chamber 2, and the other end of the heat conducting pipe 8 passes through the bottom side wall of the reaction furnace body 6, and slides through the furnace cover 601 to extend to the outside of the reaction furnace body 6;

[0030] The gas delivery component 9 is arranged at the top of the combustion chamber 2, and is used to deliver water vapor as a gasifying agent into the reaction furnace body 6.

[0031] Step 1, preparation stage:

[0032] First, the baffle plate 5 is used to block the lower port of the reaction furnace body 6, and then the biomass raw materials are put into the reaction furnace body 6, and the furnace cover 601 is closed;

[0033] Check whether the gas delivery assembly 9 is intact, especially whether the stainless steel cylinder 901, the annular tube 902, the flow guide tube 903 and other components are working properly.

[0034] Step 2: Start heating:

[0035] The burner 3 is started to burn clean energy and generate high-temperature flue gas. The high-temperature flue gas is transferred to the interior of the reaction furnace body 6 through the heat pipe 8. At the same time, the gas delivery component 9 transports water vapor as a gasifying agent into the reaction furnace body 6. The water vapor undergoes a gasification and pyrolysis reaction with the biomass under high temperature conditions to generate combustible gases (such as hydrogen and carbon monoxide). At the same time, the nickel-based catalyst in the catalyst carrier 7 promotes the reaction and improves the conversion rate.

[0036] Step 3: Gas collection and treatment:

[0037] The generated combustible gas is discharged from the reaction furnace body 6 through the gas outlet pipe 602 and enters the subsequent gas purification and storage system. The baffle plate 5 is removed, and the ash and incompletely reacted substances fall into the ash collecting chamber 4.

[0038] Step 4: Maintenance and cleaning:

[0039] Regularly clean the ash and residue in the ash collecting chamber 4 to keep the system clean and running efficiently, check the status of the catalyst carrier 7, and replace it with a new catalyst when necessary.

[0040] The biomass gasification pyrolysis reactor burns chemical fuels through the burner 3 to heat the water stored in the stainless steel cylinder 901, and produces hot water (the hot water can be taken) and generates water vapor which can be used as a gasification agent for the biomass pyrolysis reaction. At the same time, high-temperature flue gas is generated, which is transferred to the reaction furnace body 6 through the heat pipe 8 as a heat source for the biomass pyrolysis reaction. Through the efficient heat transfer mechanism and optimized production process, the energy conversion rate is significantly improved and the waste of resources is reduced.

[0041] like Figure 3As shown, in some embodiments, the gas delivery component 9 includes a stainless steel cylinder 901 embedded in the top of the combustion chamber 2, an annular tube 902 is fixedly provided on the bottom side of the reaction furnace body 6, a guide tube 903 is connected between the top of the stainless steel cylinder 901 and the annular tube 902, the upper annular array of the annular tube 902 is connected to a mounting tube 904, and the surface of the mounting tube 904 is evenly spaced and connected to an air intake pipe 905, the air intake pipe 905 passes through the outer wall of the reaction furnace body 6 and extends to the interior of the reaction furnace body 6. More specifically, first, the burner 3 ignites the biomass raw material to generate high temperature, heats the stainless steel cylinder 901, and generates water vapor, which passes through the guide tube 903, the annular tube 902, and the mounting tube 904 and enters the interior of the reaction furnace body 6 from the air intake pipe 905. Under the high temperature conditions inside the furnace body, the water vapor and the biomass undergo gasification and pyrolysis reactions to generate combustible gases (such as hydrogen and carbon monoxide).

[0042] like Figure 3 As shown, in some embodiments, a water injection pipe is connected to one side of the top of the stainless steel cylinder 901, and a drainage pipe 9011 is connected to the lower side of one side thereof. More specifically, the water injection pipe is located on one side of the top of the stainless steel cylinder 901, and is used to inject water into the cylinder. Through the water injection pipe, the staff can easily add water to the cylinder to generate the required water vapor, and the drainage pipe 9011 can facilitate the staff to take hot water for other purposes.

[0043] like Figure 3 As shown, in some embodiments, a section of the heat pipe 8 located inside the reactor body 6 is vertically arranged and located on the central axis of the reactor body 6. More specifically, the vertical arrangement and central axis position of the heat pipe 8 enable heat to be more effectively transferred to various parts of the reactor body 6, thereby improving the overall thermal efficiency. The heat pipe 8 located on the central axis ensures uniform temperature distribution inside the reactor body 6, thereby avoiding problems such as local overheating or uneven cooling.

[0044] like Figure 1 As shown, in some embodiments, the ratio of the inner diameter of the reactor body 6, the thickness of the catalyst carrier 7 and the outer diameter of the heat pipe 8 is 4:1:2. More specifically, a suitable inner diameter of the reactor body 6 helps to accommodate more biomass raw materials, a suitable thickness of the catalyst carrier 7 can provide sufficient surface area to carry the nickel-based catalyst and promote gasification and pyrolysis reactions, and a suitable outer diameter of the heat pipe 8 can ensure efficient heat conduction.

[0045] like Figure 1 As shown, in some embodiments, a ventilation grille 201 is constructed on the bottom side of the combustion chamber 2. More specifically, the main function of the ventilation grille 201 is to provide sufficient oxygen to the combustion chamber 2 to ensure that the biomass raw materials can be fully burned. By increasing air circulation, the ventilation grille 201 helps to improve combustion efficiency and reduce harmful gases produced by incomplete combustion.

[0046] like Figure 3 As shown, in some embodiments, a guide groove 401 is constructed above the inner wall of the ash collecting chamber 4, and the baffle plate 5 is slidably inserted into the guide groove 401. More specifically, the lower port of the reaction furnace body 6 can be blocked by extending the baffle plate 5 to the deepest part of the guide groove 401. When the reaction is completed, the baffle plate 5 can be pulled out, so that the ash will fall into the interior of the ash collecting chamber 4.

[0047] like Figure 3 As shown, in some embodiments, a guide plate 402 is fixedly provided inside the ash collecting chamber 4 below the baffle plate 5, and the guide plate 402 is arranged to be inclined downward. More specifically, after the biomass gasification and pyrolysis reaction is completed, the ashes and other residues generated will fall into the ash collecting chamber 4. These materials first fall on the baffle plate 5, and then slide along the inclined guide plate 402 to the bottom of the ash collecting chamber 4. By providing the guide plate 402, the space of the ash collecting chamber 4 can be effectively utilized, ensuring that the ashes and other residues can slide smoothly, avoiding accumulation or blockage in the ash collecting chamber 4.

[0048] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A biomass gasification pyrolysis reactor, characterized in that: include: A sealed bin (1), one side of which is a combustion chamber (2), a burner (3) being installed inside the combustion chamber (2), and the other side of which is an ash collecting chamber (4), one side of which is open, and an inner top wall of the ash collecting chamber (4) being detachably provided with a material baffle plate (5); A reaction furnace body (6) is fixedly embedded just above the ash collecting chamber (4), the reaction furnace body (6) is columnar, and its upper and lower ends are open structures, the upper end of the reaction furnace body (6) is slidably connected to the baffle plate (5), the upper end of the reaction furnace body (6) is threadedly connected to a furnace cover (601), the upper side of the reaction furnace body (6) is connected to an air outlet pipe (602), and the inner wall of the reaction furnace body (6) is provided with a catalyst carrier (7), the catalyst carrier (7) is an annular porous ceramic, and a nickel-based catalyst is evenly distributed inside the catalyst carrier (7); A heat conducting pipe (8) is connected to the combustion chamber (2) directly above the combustion chamber, and the other end of the heat conducting pipe (8) passes through the bottom side wall of the reaction furnace body (6) and slides through the furnace cover (601) to extend to the outside of the reaction furnace body (6); A gas delivery component (9) is arranged on the top of the combustion chamber (2), and the gas delivery component (9) is used to deliver water vapor as a gasifying agent into the reaction furnace body (6).

2. A biomass gasification pyrolysis reactor according to claim 1, characterized in that: The gas delivery assembly (9) comprises a stainless steel cylinder (901) embedded in the top of the combustion chamber (2); an annular tube (902) is fixedly provided on the bottom side of the reaction furnace body (6); a flow guide tube (903) is connected between the top of the stainless steel cylinder (901) and the annular tube (902); a mounting tube (904) is connected to the upper annular array of the annular tube (902); an air intake tube is connected to the surface of the mounting tube (904) at equal intervals; the air intake tube passes through the outer wall of the reaction furnace body (6) and extends into the interior of the reaction furnace body (6).

3. A biomass gasification pyrolysis reactor according to claim 2, characterized in that: One side of the top of the stainless steel cylinder (901) is connected to a water injection pipe, and one side of the bottom is connected to a drainage pipe (9011).

4. The biomass gasification pyrolysis reactor according to claim 1, characterized in that: The section of the heat conducting pipe (8) located inside the reaction furnace body (6) is arranged vertically and is located on the central axis of the reaction furnace body (6).

5. A biomass gasification pyrolysis reactor according to claim 4, characterized in that: The ratio of the inner diameter of the reaction furnace body, the thickness of the catalyst carrier and the outer diameter of the heat conduction pipe is 4:1:

2.

6. The biomass gasification pyrolysis reactor according to claim 1, characterized in that: The bottom side of the combustion chamber (2) is configured with a ventilation grille (201).

7. The biomass gasification pyrolysis reactor according to claim 1, characterized in that: A guide groove (401) is configured above the inner side wall of the ash collecting chamber (4), and the material blocking plate (5) is slidably inserted into the guide groove (401).

8. The biomass gasification pyrolysis reactor according to claim 1, characterized in that: A guide plate (402) is fixedly provided inside the ash collecting chamber (4) below the material blocking plate (5), and the guide plate (402) is arranged to be inclined downward.

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