Methanol preparation device based on biomass cracking
By designing a methanol preparation device based on biomass cracking, using multiple preparation tanks and extrusion technologies to achieve high-pressure state, and combining filtration and electrical heating treatment, the problem of low methanol preparation efficiency in the prior art is solved, and the effective utilization of gasified gas and the efficient preparation of methanol is achieved.
Patent Information
- Application Number
- CN202421543489.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The existing biomass methanol preparation technology is difficult to effectively utilize gasification gases in high temperature and high pressure environments, resulting in low methanol preparation efficiency.
A methanol preparation device based on biomass cracking is designed. By setting up multiple preparation tanks and squeezing, the high-pressure state is achieved, combined with filter components and electric heating plates, the gasified gas enters the preparation tank in a timely manner, and methanol is prepared catalytically under high temperature and high pressure environment.
The methanol preparation efficiency is improved, and the gasified gas is effectively utilized. The device can be used for gaseous dedusting, desulfurization and nitrogen removal treatment of gases, which significantly improves the efficiency and effect of the preparation process.
Smart Images
Figure CN222943445U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of biomass carbonization byproduct preparation, in particular to a methanol preparation device based on biomass cracking. Background Art
[0002] Biomass refers to organic matter from plants and animals, including wood, crop straw, waste, etc. Biomass is cracked and gasified in a high-temperature environment to produce methanol. As a common method of preparing methanol, it needs to be carried out in a high-temperature and high-pressure environment. At present, a high-pressure environment is often created by a high-pressure air pump. When the high-pressure air pump pressurizes the tank, in order to prevent pressure leakage, the pipeline used to transport the gasified gas is usually closed, resulting in the gasified gas in the subsequent process unable to enter the tank in time for methanol preparation, affecting the methanol preparation efficiency. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a methanol preparation device based on biomass cracking, which is provided with a plurality of preparation tanks for preparing methanol, and the interior of the preparation tank is placed in a high-pressure state by extrusion, which is convenient for the preparation of methanol. The plurality of preparation tanks are arranged to work in coordination, so that the gasified gas can be collected in the preparation tank in time, thereby improving the preparation efficiency of methanol. In addition, the preparation device can also be used for dust removal, desulfurization and denitrification treatment in the gas, which can effectively solve the problems in the background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a methanol preparation device based on biomass cracking, comprising a filtering assembly, a control cabinet and several preparation tanks, the top of the preparation tank is open, and a pressure plate is slidably arranged on the upper inner side of the preparation tank, the side of the pressure plate is in sealing contact with the inner side of the preparation tank, and the pressure plate is in the shape of a box, and a lifting assembly for driving the pressure plate to move is arranged on the outside, and a heating assembly is arranged on the lower part of the side of the preparation tank, the filtering assembly comprises a filter box, an air inlet pipe connected to its inner cavity is installed on one side of the filter box, an air guide pipe connected to its inner cavity is installed on the other side of the filter box, a connecting pipe connected to the inner cavity of the preparation tank is installed on the end of the air guide pipe, and the connecting pipe is located on the upper side of the preparation tank, a discharge pipe connected to its inner cavity is installed at the bottom of the preparation tank, and a valve is installed on the discharge pipe.
[0005] As a preferred technical solution of the utility model, a first fixing frame is fixed to the side of the preparation tank for positioning it, a second fixing frame is arranged above the first fixing frame, and the lifting assembly includes an electric hydraulic cylinder installed on the side of the second fixing frame, the telescopic end of the electric hydraulic cylinder is fixedly connected to the middle part of the side of the pressure plate, and the electric hydraulic cylinder, the control switch corresponding to the electric hydraulic cylinder in the control cabinet, and the external power supply are connected in series to form a working circuit of the electric hydraulic cylinder.
[0006] As a preferred technical solution of the utility model, the heating assembly includes an electric heating plate, and the heating end of the electric heating plate is located inside the preparation tank. The electric heating plate, the control switch corresponding to the electric heating plate in the control cabinet, and the external power supply are connected in series to form a working circuit of the electric heating plate.
[0007] As a preferred technical solution of the utility model, a pressure detection component is installed on the side of the pressure plate, and the detection end of the pressure detection component is located on the lower side of the pressure plate. The pressure detection component, the control switch corresponding to the pressure detection component in the control cabinet, and the external power supply are connected in series to form a working circuit of the pressure detection component.
[0008] As a preferred technical solution of the utility model, a filter plate is installed in the filter box, and a plurality of filter plates are provided.
[0009] As a preferred technical solution of the utility model, a first filter element is installed in the filter box, and the first filter element is a hydrogen sulfide absorbent.
[0010] As a preferred technical solution of the utility model, a second filter element is installed in the filter box, and the second filter element is a nitrogen oxide catalyst.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. In the methanol preparation device based on biomass cracking illustrated in the utility model, the gasified gas in the biomass cracking process enters the filter box through the air inlet pipe, and the multiple filter plates arranged in the filter box filter the dust, foreign matter and other impurities in the gas. Then, under the action of the first filter element, the absorbent processes the hydrogen sulfide in the gas to achieve the purpose of desulfurization. Finally, under the action of the second filter element, the catalyst catalyzes the reduction reaction of nitrogen oxides to achieve the purpose of denitrification.
[0013] 2. In the methanol preparation device based on biomass cracking illustrated in the utility model, after being filtered by the filter assembly, the gas enters the preparation tank through the connecting pipe at the end of the air guide pipe, and the pressure detection assembly arranged on the pressure plate detects the pressure of the gas entering the preparation tank, and the pressure detection assembly feeds back the detected pressure information to the control cabinet for personnel observation. When the pressure in the preparation tank reaches a certain level as the gas enters, the control cabinet controls the electric hydraulic cylinder to work, and the electric hydraulic cylinder pushes the pressure plate downward to squeeze the gas in the preparation tank. In the process of the pressure plate moving downward, the pressure plate seals the connecting pipe, so that the gas in the connecting pipe no longer enters the current preparation tank, and at the same time, the gas in the preparation tank is prevented from leaking out during the compression process. When the electric hydraulic cylinder works, it controls the electric heating plate to work, so that the gas in the preparation tank is catalyzed into methanol by the catalyst under high temperature and high pressure environment.
[0014] 3. In the methanol preparation device based on biomass cracking illustrated in the utility model, after the connecting pipe in a preparation tank is blocked by a pressure plate, the gas in the air guide pipe enters another preparation tank through other connecting pipes, so that the gas generated during the gasification process enters the preparation tank in time for collection, and the methanol preparation efficiency is improved by the coordinated work of multiple preparation tanks. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;
[0017] Figure 3 for Figure 2 A schematic diagram of the front view structure of
[0018] Figure 4 It is a structural schematic diagram of the filter assembly in the utility model.
[0019] In the figure: 1 preparation tank, 2 first fixing frame, 3 second fixing frame, 4 electric hydraulic cylinder, 5 pressure plate, 6 pressure detection component, 7 electric heating plate, 8 filter box, 9 air inlet pipe, 10 air guide pipe, 11 connecting pipe, 12 filter plate, 13 first filter element, 14 second filter element, 15 discharge pipe, 16 valve, 17 control cabinet. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-4The utility model provides a technical solution: a methanol preparation device based on biomass pyrolysis, comprising a filtering component, a control cabinet 17 and a plurality of preparation tanks 1, wherein the top of the preparation tank 1 is open, and a pressing plate 5 is slidably arranged on the upper inner side of the preparation tank 1, and the side of the pressing plate 5 is in sealing contact with the inner side of the preparation tank 1 to improve the sealing performance of the device, and the pressing plate 5 is in a box shape to increase the contact area between the pressing plate 5 and the preparation tank 1, and a lifting component for driving the pressing plate 5 to move is arranged on the outside, and a first fixing frame 2 for positioning the preparation tank 1 is fixed to the side of the preparation tank 1, and a second fixing frame 3 is arranged above the first fixing frame 2, and the lifting component includes an electric hydraulic cylinder installed on the side of the second fixing frame 3 4. The telescopic end of the electric hydraulic cylinder 4 is fixedly connected to the middle part of the side of the pressure plate 5. The electric hydraulic cylinder 4, the control switch corresponding to the electric hydraulic cylinder 4 in the control cabinet 17, and the external power supply are connected in series to form a working circuit of the electric hydraulic cylinder 4. The first fixing frame 2 and the second fixing frame 3 can be fixed on the wall or on an external support frame. The electric hydraulic cylinder 4 is controlled to work through the control cabinet 17. The electric hydraulic cylinder 4 pushes the pressure plate 5 to move downward to squeeze the gas in the preparation tank 1. In the process of the pressure plate 5 moving downward, the pressure plate 5 seals the connecting pipe 11, so that the gas in the connecting pipe 11 no longer enters the current preparation tank 1, and at the same time, the gas in the preparation tank 1 is prevented from leaking during the compression process.
[0022] A heating assembly is provided at the lower part of the side of the preparation tank 1, and the heating assembly includes an electric heating plate 7, and the heating end of the electric heating plate 7 is located inside the preparation tank 1. The electric heating plate 7, the control switch corresponding to the electric heating plate 7 in the control cabinet 17, and the external power supply are connected in series to form a working circuit of the electric heating plate 7. The electric hydraulic cylinder 4 controls the operation of the electric heating plate 7 while the gas in the preparation tank 1 is catalyzed by a catalyst to prepare methanol under a high temperature and high pressure environment. The catalyst uses a composite oxide of metals such as copper, zinc, and aluminum.
[0023] A pressure detection component 6 is installed on the side of the pressing plate 5, and the detection end of the pressure detection component 6 is located on the lower side of the pressing plate 5. The pressure detection component 6, the control switch corresponding to the pressure detection component 6 in the control cabinet 17, and the external power supply are connected in series to form a working circuit of the pressure detection component 6, which enters the preparation tank 1 through the connecting pipe 11 at the end of the air duct 10. The pressure detection component 6 arranged on the pressing plate 5 detects the gas pressure entering the preparation tank 1, and the pressure detection component 6 feeds back the detected pressure information to the control cabinet 17 for personnel observation. When the pressure in the preparation tank 1 reaches a certain level as the gas enters, the control cabinet 17 controls the electric hydraulic cylinder 4 to work.
[0024] The filter assembly includes a filter box 8, one side of the filter box 8 is equipped with an air inlet pipe 9 connected to its inner cavity, the other side of the filter box 8 is equipped with an air guide pipe 10 connected to its inner cavity, the end of the air guide pipe 10 is equipped with a connecting pipe 11 connected to the inner cavity of the preparation tank 1, and the connecting pipe 11 is located at the upper side of the preparation tank 1. A filter plate 12 is installed in the filter box 8. The filter plate 12 is preferably a primary filter. The filter plate 12 can also be a filter screen, a dust bag, etc., and a plurality of filter plates 12 are provided. A first filter element 13 is installed in the filter box 8. The first filter element 13 is A hydrogen sulfide absorbent is installed in the filter box 8. The second filter element 14 is a nitrogen oxide catalyst. The gasified gas in the biomass cracking process enters the filter box 8 through the air inlet pipe 9. The multiple filter plates 12 arranged in the filter box 8 filter the dust, foreign matter and other impurities in the gas. Then, under the action of the first filter element 13, the absorbent processes the hydrogen sulfide in the gas to achieve the purpose of desulfurization. Finally, under the action of the second filter element 14, the catalyst catalyzes the reduction reaction of nitrogen oxides to achieve the purpose of denitrification.
[0025] A discharge pipe 15 communicating with the inner cavity of the preparation tank 1 is installed at the bottom thereof, and a valve 16 is installed on the discharge pipe 15 . The discharge pipe 15 can be opened by the valve 16 to discharge the methanol prepared in the preparation tank 1 .
[0026] The electric hydraulic cylinder 4, pressure detection component 6, electric heating plate 7, control cabinet 17, etc. used in the present invention are all commonly used electronic components in the prior art, and the way in which the electric hydraulic cylinder 4, pressure detection component 6, and electric heating plate 7 are controlled by the control cabinet 17 is a common technical means used by technicians, and their working methods and circuit structures are well-known technologies and will not be elaborated here.
[0027] When using:
[0028] During the biomass pyrolysis process, the gasified gas enters the filter box 8 through the air inlet pipe 9. The multiple filter plates 12 arranged in the filter box 8 filter the dust, foreign matter and other impurities in the gas. Then, under the action of the first filter element 13, the absorbent processes the hydrogen sulfide in the gas to achieve the purpose of desulfurization. Finally, under the action of the second filter element 14, the catalyst catalyzes the reduction reaction of nitrogen oxides to achieve the purpose of denitrification.
[0029] After being filtered by the filter assembly, the gas enters the preparation tank 1 through the connecting pipe 11 at the end of the air guide pipe 10. The pressure detection assembly 6 arranged on the pressure plate 5 detects the pressure of the gas entering the preparation tank 1, and the pressure detection assembly 6 feeds back the detected pressure information to the control cabinet 17 for personnel observation. As the gas enters and the pressure in the preparation tank 1 reaches a certain level, the control cabinet 17 controls the electric hydraulic cylinder 4 to work, and the electric hydraulic cylinder 4 pushes the pressure plate 5 to move downward to squeeze the gas in the preparation tank 1. In the process of the pressure plate 5 moving downward, the pressure plate 5 seals the connecting pipe 11, so that the gas in the connecting pipe 11 no longer enters the current preparation tank 1, and at the same time, the gas in the preparation tank 1 is prevented from leaking out during the compression process. When the electric hydraulic cylinder 4 works, it controls the electric heating plate 7 to work, so that the gas in the preparation tank 1 is catalyzed into methanol under a high temperature and high pressure environment;
[0030] After the connecting pipe 11 in one of the preparation tanks 1 is blocked by the pressure plate 5, the gas in the air duct 10 enters another preparation tank 1 through other connecting pipes 11, so that the gas generated during the gasification process enters the preparation tank 1 in time for collection, and the methanol preparation efficiency is improved by the coordinated work of multiple preparation tanks 1.
[0031] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.
Claims
1. A methanol production device based on biomass pyrolysis, comprising a filter assembly, a control cabinet (17) and a plurality of preparation tanks (1), characterized in that: The top of the preparation tank (1) is open, and a pressure plate (5) is slidably arranged on the upper inner side of the preparation tank (1). The side of the pressure plate (5) is in sealing contact with the inner side of the preparation tank (1), and the pressure plate (5) is in a box shape. A lifting component for driving the pressure plate (5) to move is arranged on the outside. A heating component is arranged on the lower side of the preparation tank (1). The filter component comprises a filter box (8), and an air inlet pipe (9) connected to its inner cavity is installed on one side of the filter box (8), and an air guide pipe (10) connected to its inner cavity is installed on the other side of the filter box (8). A connecting pipe (11) connected to the inner cavity of the preparation tank (1) is installed at the end of the air guide pipe (10), and the connecting pipe (11) is located on the upper side of the preparation tank (1). A discharge pipe (15) connected to its inner cavity is installed at the bottom of the preparation tank (1), and a valve (16) is installed on the discharge pipe (15).
2. The methanol production device based on biomass pyrolysis according to claim 1, characterized in that: A first fixing frame (2) for positioning the preparation tank (1) is fixed on the side thereof, a second fixing frame (3) is arranged above the first fixing frame (2), the lifting assembly comprises an electric hydraulic cylinder (4) mounted on the side of the second fixing frame (3), the telescopic end of the electric hydraulic cylinder (4) is fixedly connected to the middle part of the side of the pressing plate (5), and the electric hydraulic cylinder (4), a control switch corresponding to the electric hydraulic cylinder (4) in the control cabinet (17), and an external power supply are connected in series to form a working circuit of the electric hydraulic cylinder (4).
3. The methanol production device based on biomass pyrolysis according to claim 1, characterized in that: The heating assembly comprises an electric heating plate (7), and a heating end of the electric heating plate (7) is located inside the preparation tank (1), and the electric heating plate (7), a control switch corresponding to the electric heating plate (7) in the control cabinet (17), and an external power supply are connected in series to form a working circuit of the electric heating plate (7).
4. The methanol production device based on biomass pyrolysis according to claim 1, characterized in that: A pressure detection component (6) is installed on the side of the pressure plate (5), and the detection end of the pressure detection component (6) is located at the lower side of the pressure plate (5). The pressure detection component (6), a control switch corresponding to the pressure detection component (6) in the control cabinet (17), and an external power supply are connected in series to form a working circuit of the pressure detection component (6).
5. The methanol production device based on biomass pyrolysis according to claim 1, characterized in that: A filter plate (12) is installed in the filter box (8), and a plurality of filter plates (12) are provided.
6. The methanol production device based on biomass pyrolysis according to claim 1, characterized in that: A first filter element (13) is installed in the filter box (8), and the first filter element (13) is a hydrogen sulfide absorbent.
7. The methanol production device based on biomass pyrolysis according to claim 1, characterized in that: A second filter element (14) is installed in the filter box (8), and the second filter element (14) is a nitrogen oxide catalyst.