Fluidized bed gasification furnace capable of automatically feeding
By designing automatic feeding mechanism and reverse-reverse mechanism, the problem of manual feeding of existing fluidized bed gasification furnaces is solved, and the automatic feeding of coal and the unidirectional flowability of gases is realized, which reduces labor costs and ensures the furnace. The body works normally.
Patent Information
- Application Number
- CN202421295158.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing fluidized bed gasification furnace requires manual feeding, which leads to an increase in time and an increase in labor costs. Inadequate feeding will affect the normal operation of the furnace body.
A feeding mechanism including a feeding pipe, a feeding tank, a feeding port, a reducer motor, a screw rod, a fan blade and an acceleration pipe is designed, which can automatically add coal from the feeding pipe to the main body furnace and pass through the The countermeasure prevents gas from flowing back.
Automatic feeding of coal materials is realized, timely addition of materials is ensured, labor costs are reduced, and gas is discharged stably through anti-countercurrent design, avoiding the impact of gas return on the furnace body work.
Smart Images
Figure CN222476533U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fluidized bed gasifiers, in particular to a fluidized bed gasifier capable of autonomously loading materials. Background Art
[0002] Fluidized bed gasifier uses gasification medium as fluidization medium to make biomass undergo gasification reaction in a suspended flow state. With the continuous development and innovation of biomass gasifiers, the energy of biomass gasifiers can be better utilized.
[0003] When the existing fluidized bed gasifier is working, it is often fed manually, so that manual processing is required during operation, which not only takes time but also increases the labor cost accordingly. In addition, untimely manual feeding will also affect the normal operation of the furnace.
[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a fluidized bed gasification furnace capable of self-loading is provided, in order to achieve a more practical purpose. Utility Model Content
[0005] The purpose of the utility model is to provide a fluidized bed gasifier that can load materials autonomously, so as to solve the problem mentioned in the above background technology that the existing fluidized bed gasifier is often fed manually during operation, so that manual processing is required during operation, which not only takes time but also increases the labor cost accordingly, and the untimely manual feeding will also affect the normal operation of the furnace body.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fluidized bed gasification furnace capable of autonomous feeding, comprising a main furnace and a feeding mechanism, wherein the feeding mechanism for automatic feeding is arranged on the upper side of the main furnace, and the feeding mechanism comprises a material guide pipe, a material storage tank, a feeding port, a reduction motor, a screw rod, a fan blade and an accelerating tube, a material storage tank is fixed above the material guide pipe, and a feeding port is provided on the upper side of the material storage tank, a reduction motor is installed in the middle of the upper part of the material storage tank, and a screw rod is connected to the output end of the reduction motor, a fan blade is provided on the inner side of the material guide pipe, and an accelerating tube is provided on the front side of the fan blade.
[0007] Furthermore, an exhaust port is connected to the upper middle portion of the main furnace, and a backflow prevention mechanism for preventing backflow is installed in the inner middle portion of the exhaust port.
[0008] Furthermore, the anti-return mechanism includes a first valve cover and a rotating shaft, and the rear end of the first valve cover is equipped with a rotating shaft.
[0009] Furthermore, the anti-return mechanism also includes a connecting spring, and the upper side of the first valve cover is connected to the connecting spring.
[0010] Furthermore, the anti-return mechanism also includes a limit block, and the limit block is arranged on the lower side of the front end of the first valve cover.
[0011] Furthermore, the anti-return mechanism also includes a second valve cover, and the second valve cover is arranged on the opposite side of the first valve cover.
[0012] Compared with the prior art, the utility model provides a fluidized bed gasifier that can be fed autonomously, and has the following beneficial effects:
[0013] 1. The utility model can automatically add the coal in the feed pipe into the main furnace through the cooperation between the various parts of the feeding mechanism, so as to ensure the timeliness of material addition during operation, avoid the influence of untimely manual feeding on the normal operation of the furnace body, and also reduce a certain amount of labor costs;
[0014] 2. The utility model can ensure the unidirectional flow of gas when the gas is discharged through the coordination between the various parts of the anti-return mechanism, avoiding the backflow of gas and affecting the stable operation of the furnace body. At the same time, the opening of the first valve cover and the second valve cover from the middle can also reduce the pressure of the gas rushing out, which is conducive to the stable discharge of the gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of a fluidized bed gasifier capable of self-loading according to the utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of a fluidized bed gasification furnace storage tank capable of self-loading according to the utility model;
[0017] Figure 3 The utility model is a fluidized bed gasification furnace capable of self-loading Figure 2 The enlarged structural diagram at A in the middle;
[0018] Figure 4 The utility model is a schematic diagram of the internal structure of a fluidized bed gasification furnace anti-return mechanism capable of self-feeding.
[0019] In the figure: 1. main furnace; 2. exhaust port; 3. feeding mechanism; 301. material guide pipe; 302. material storage tank; 303. feeding port; 304. reduction motor; 305. screw rod; 306. fan blade; 307. acceleration tube; 4. anti-return mechanism; 401. first valve cover; 402. rotating shaft; 403. connecting spring; 404. limit block; 405. second valve cover. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.
[0022] like Figure 1-Figure 3 As shown, a fluidized bed gasification furnace capable of self-feeding comprises a main furnace 1 and a feeding mechanism 3, characterized in that the feeding mechanism 3 for automatic feeding is arranged on one side above the main furnace 1, and the feeding mechanism 3 comprises a material guide pipe 301, a material storage tank 302, a feeding port 303, a reduction motor 304, a screw rod 305, a fan blade 306 and an accelerating tube 307, a material storage tank 302 is fixed above the material guide pipe 301, and a feeding port 303 is provided on one side above the material storage tank 302, a reduction motor 304 is installed in the middle part above the material storage tank 302, and the output end of the reduction motor 304 is connected to the screw rod 305, a fan blade 306 is provided on one side inside the material guide pipe 301, and an accelerating tube 307 is provided on the front side of the fan blade 306;
[0023] The material to be processed can be stored in advance through the storage tank 302 and the feeding port 303. The reduction motor 304 can drive the screw rod 305 to rotate, so that the screw rod 305 automatically pushes the coal into the guide pipe 301 to prevent the blockage of falling by itself. The machine blade 306 driven by the power motor can provide a blowing force to the left side of the guide pipe 301. Under the acceleration of the wind force by the nozzle-shaped acceleration tube 307, the coal in the guide pipe 301 can be automatically added to the main furnace 1, so that the timeliness of material addition can be guaranteed during operation, avoiding the influence of untimely manual addition on the normal operation of the furnace body, and also reducing a certain amount of labor cost.
[0024] like Figure 1 and Figure 4As shown, the exhaust port 2 is connected to the upper middle part of the main furnace 1, and a non-return mechanism 4 for preventing backflow is installed in the inner middle part of the exhaust port 2. The non-return mechanism 4 includes a first valve cover 401 and a rotating shaft 402. The rotating shaft 402 is installed at the rear end of the first valve cover 401. The non-return mechanism 4 also includes a connecting spring 403. The upper side of the first valve cover 401 is connected to the connecting spring 403. The non-return mechanism 4 also includes a limit block 404. The limit block 404 is arranged on the lower side of the front end of the first valve cover 401. The non-return mechanism 4 also includes a second valve cover 405. The opposite side of the first valve cover 401 is provided with The second valve cover 405, through the reset ability of the connecting spring 403 on the first valve cover 401 and the second valve cover 405, and the positioning of the first valve cover 401 and the second valve cover 405 by the limit block 404, can enable the first valve cover 401 and the second valve cover 405 to achieve unidirectional flipping ability under the action of the rotating shaft 402, so as to ensure the unidirectional flow of gas when the gas is discharged, and avoid gas backflow to affect the stability of the furnace body operation. At the same time, opening the first valve cover 401 and the second valve cover 405 from the middle can also reduce the pressure of the gas rushing open, which is conducive to the stable discharge of the gas.
[0025] Working principle: When using the fluidized bed gasification furnace that can be loaded independently, first, the material to be processed can be pre-stored through the storage tank 302 and the feeding port 303, and then the screw rod 305 can be driven to rotate by the reduction motor 304, so that the screw rod 305 can automatically push the coal material down into the guide pipe 301, and then the machine blade 306 driven by the power motor can provide a blowing force to the left side of the guide pipe 301. Under the acceleration of the wind force by the nozzle-shaped acceleration tube 307, the coal material in the guide pipe 301 can be automatically added to the main furnace 1. At this time, the first valve cover 401 and the second valve cover 405 are reset by the connecting spring 403, and then the first valve cover 401 and the second valve cover 405 are positioned by the limit block 404, so that the first valve cover 401 and the second valve cover 405 can achieve unidirectional flipping ability under the action of the rotating shaft 402, and finally the unidirectional flowability of the gas can be guaranteed when the gas is discharged.
[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A fluidized bed gasification furnace capable of self-loading, comprising a main furnace (1) and a loading mechanism (3), characterized in that: The feeding mechanism (3) for automatic feeding is arranged on one side above the main furnace (1), and comprises a material guide pipe (301), a material storage tank (302), a feeding port (303), a reduction motor (304), a screw rod (305), a fan blade (306) and an accelerating tube (307). The material storage tank (302) is fixed above the material guide pipe (301), and the feeding port (303) is provided on one side above the material storage tank (302). A reduction motor (304) is installed in the middle part above the material storage tank (302), and the output end of the reduction motor (304) is connected to the screw rod (305). A fan blade (306) is provided on one side inside the material guide pipe (301), and an accelerating tube (307) is provided on the front side of the fan blade (306).
2. The fluidized bed gasifier capable of self-loading according to claim 1, characterized in that: An exhaust port (2) is connected to the upper middle portion of the main furnace (1), and a backflow prevention mechanism (4) for preventing backflow is installed in the inner middle portion of the exhaust port (2).
3. The fluidized bed gasifier capable of self-loading according to claim 2, characterized in that: The anti-return mechanism (4) comprises a first valve cover (401) and a rotating shaft (402), and the rotating shaft (402) is installed at the rear end of the first valve cover (401).
4. The fluidized bed gasifier capable of self-loading according to claim 3, characterized in that: The anti-return mechanism (4) further comprises a connecting spring (403), and the upper side of the first valve cover (401) is connected to the connecting spring (403).
5. The fluidized bed gasifier capable of self-loading according to claim 3, characterized in that: The anti-return mechanism (4) further comprises a limit block (404), and the limit block (404) is arranged at the lower side of the front end of the first valve cover (401).
6. The fluidized bed gasifier capable of self-loading according to claim 3, characterized in that: The non-return mechanism (4) further comprises a second valve cover (405), and the second valve cover (405) is arranged on the opposite side of the first valve cover (401).