A reciprocating gasifier
By designing a reciprocating gasifier and using a pusher plate to automatically gather fuel, the problem of fuel accumulation at the edge in traditional reciprocating gasifiers is solved, gasification efficiency and combustion effect are improved, carbon content in ash is reduced, and efficient fuel gasification is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU CARBON HIDDEN INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-17
AI Technical Summary
In traditional reciprocating gasifiers, fuel accumulates at the edges of the furnace body due to the lack of a lateral gathering mechanism, forming low-temperature dead zones. This results in incomplete combustion in the edge areas, low gasification efficiency, and high carbon content in the ash residue, further contributing to incomplete combustion and reduced gasification efficiency.
A gasifier is designed that pushes a second inclined block in front of the grate to press the inclined surface of the first inclined block, forcing the pusher plate to slide laterally towards the center of the furnace, thereby achieving automatic fuel aggregation, improving edge combustion efficiency, and reducing the residual carbon content of ash. The reciprocating motion of the pusher plate requires no additional power, and the structure is simple and reliable. The horizontal plate and the baffle plate provide double protection to prevent fuel jamming. The through holes enhance the oxygen supply to the edge fuel and prevent local flameout. The reset rod, together with the tubular shell and spring, ensures that the pusher plate automatically returns to its position, ensuring smooth and stable operation.
It significantly improves the gasification efficiency of the gasifier, avoids the formation of low-temperature dead zones, ensures complete combustion in the edge areas, reduces the residual carbon content in ash and slag, and achieves efficient fuel gasification.
Smart Images
Figure CN224513438U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of gasifiers, and in particular to a reciprocating gasifier. Background Technology
[0002] A reciprocating gasifier is a fixed-bed gasification device that uses the reciprocating motion of a grate to propel fuel forward. It is widely used in the pyrolysis gasification of solid fuels such as biomass and coal gangue. Traditional grates can only move back and forth, and fuel continues to accumulate at the edges of the furnace body due to the lack of a lateral aggregation mechanism, forming low-temperature dead zones. The accumulated fuel cannot come into contact with sufficient oxygen, resulting in incomplete combustion in the edge areas, high carbon content in the ash residue, and reduced gasification efficiency.
[0003] Therefore, those skilled in the art have provided a reciprocating gasifier to solve the problems mentioned in the background art. Utility Model Content
[0004] To address the problems mentioned in the background art, this application provides a reciprocating gasifier.
[0005] The reciprocating gasifier provided in this application adopts the following technical solution:
[0006] A reciprocating gasifier includes a gasifier body. A feeding hopper is installed at the upper end of the gasifier body, and a feeding valve is installed on the feeding hopper. A gas outlet pipe is installed at the front end of the gasifier body. A furnace arch is installed at the front of the inner side of the gasifier body. A first mounting frame is installed at the rear of the inner side of the gasifier body. A second mounting frame is installed in the middle of the first mounting frame. A grate is installed on both the first and second mounting frames. A hydraulic cylinder is installed at the rear end of the second mounting frame. A drying blower, a gasification blower, and a combustion blower are sequentially arranged at the bottom of the inner side of the gasifier body. A material transfer assembly is symmetrically arranged on the first mounting frame. The material transfer assembly includes a shell. A reset assembly is installed on the side penetrating the shell. A pusher plate is arranged on the inner side of the shell. A first inclined block is fixedly connected to one end of the pusher plate near the shell. A second inclined block is slidably connected to the inclined surface of the first inclined block. The second inclined block is fixedly connected to the grate.
[0007] Preferably, the reset assembly includes a reset rod, one end of which is fixedly connected to the pusher plate, and the other end of which is fitted with a tubular shell. A spring is installed between the outer side of the reset rod and the tubular shell.
[0008] Preferably, a horizontal plate is fixedly connected to the upper side wall of the pusher plate, and the horizontal plate is located inside the housing.
[0009] Preferably, the bottom end of the shell is designed to be through, and the pusher plate has several evenly distributed through holes.
[0010] Preferably, a baffle plate is fixed to the upper end of the shell, and the baffle plate is provided with an inclined surface facing the grate.
[0011] In summary, this application includes the following beneficial technical effects:
[0012] 1. The grate drives the second inclined block to move synchronously. When the grate pushes forward, the second inclined block presses against the inclined surface of the first inclined block, forcing the pusher plate to slide laterally towards the center of the furnace. This achieves automatic fuel gathering, significantly improving edge combustion efficiency and reducing the residual carbon content in ash. The reciprocating motion of the pusher plate requires no additional power, resulting in a simple and reliable structure. Double protection with the horizontal plate and baffle plate prevents fuel from jamming the material transfer components. Through holes enhance oxygen supply to the edge fuel, preventing localized flameout. The reset rod, in conjunction with the tubular shell and spring, ensures the pusher plate automatically returns to its original position, ensuring smooth and stable operation. This design effectively gathers fuel towards the center, preventing the formation of low-temperature dead zones and ensuring complete combustion in the edge area, thus improving gasification efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this application;
[0014] Figure 2 This is a first-view schematic diagram of the internal structure of this application;
[0015] Figure 3 This is a second-view schematic diagram of the internal structure of this application;
[0016] Figure 4 This application is Figure 3 A schematic diagram of the structure of part A.
[0017] Explanation of reference numerals in the attached drawings: 1. Gasifier body; 2. Feed hopper; 3. Feed valve; 4. Gas outlet pipe; 5. Furnace arch; 6. First mounting bracket; 7. Second mounting bracket; 8. Grate; 9. Hydraulic cylinder; 10. Drying blower; 11. Gasification blower; 12. Combustion blower; 13. Shell; 14. Material baffle plate; 15. Reset rod; 16. Tubular shell; 17. Spring; 18. Pusher plate; 19. Through hole; 20. Horizontal plate; 21. First inclined block; 22. Second inclined block. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Example 1
[0020] like Figure 1-4 As shown, this application discloses a reciprocating gasifier, including a gasifier body 1, a feeding hopper 2 installed at the upper end of the gasifier body 1, a feeding valve 3 installed on the feeding hopper 2, a gas outlet pipe 4 installed at the front end of the gasifier body 1, a furnace arch 5 installed at the front of the inner side of the gasifier body 1, a first mounting frame 6 installed at the rear of the inner side of the gasifier body 1, a second mounting frame 7 installed at the middle of the first mounting frame 6, a grate 8 installed on both the first mounting frame 6 and the second mounting frame 7, and a hydraulic cylinder 9 installed at the rear end of the second mounting frame 7. A drying blower 10, a gasification blower 11, and a combustion blower 12 are sequentially arranged on the inner side of the gasifier body 1 near the bottom. A material transfer assembly is symmetrically arranged on the first mounting frame 6. The material transfer assembly includes a housing 13. A reset assembly is installed on the side of the housing 13. A pusher plate 18 is arranged on the inner side of the housing 13. A first inclined block 21 is fixedly connected to one end of the pusher plate 18 near the housing 13. A second inclined block 22 is slidably connected to the inclined surface of the first inclined block 21. The second inclined block 22 is fixedly connected to the grate 8.
[0021] Hydraulic cylinder 9 pushes the grate 8 installed on the second mounting frame 7 to move back and forth, driving the fuel to move and gradually completing the drying and gasification combustion process. The drying blower 10, gasification blower 11 and combustion blower 12 are three areas, and the three areas discharge ash independently to ensure that the blowing and ash discharge do not affect each other, and the fuel combustion and gasification are complete, ensuring efficient gasification. When the grate 8 moves, it drives the second inclined block 22 to squeeze and contact the first inclined block 21, and drives the pusher plate 18 to move back and forth towards the fuel, driving the fuel to gather towards the center and improving the combustion effect of the fuel at the edge.
[0022] like Figure 3 As shown, the reset assembly includes a reset rod 15. One end of the reset rod 15 is fixedly connected to the pusher plate 18, and the other end of the reset rod 15 is fitted with a tubular shell 16. A spring 17 is installed between the outer side of the reset rod 15 and the tubular shell 16. After the second inclined block 22 resets along with the grate 8, the spring 17 drives the reset rod 15 to pull the pusher plate 18 to reset.
[0023] like Figure 3 As shown, a horizontal plate 20 is fixedly connected to the upper side wall of the pusher plate 18. The horizontal plate 20 is located inside the housing 13. By setting the horizontal plate 20, fuel can be prevented from entering and causing jamming after the pusher plate 18 moves away from the housing 13.
[0024] like Figure 3 As shown, the bottom of the housing 13 is designed to be through, and the pusher plate 18 has several evenly distributed through holes 19. By opening the through holes 19 on the pusher plate 18, air can be supplied to the fuel on the side.
[0025] like Figure 2-3As shown, a baffle plate 14 is fixed to the upper end of the shell 13. The baffle plate 14 has an inclined surface facing the grate 8. By setting the baffle plate 14, fuel can be prevented from accumulating on the shell 13.
[0026] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0028] The implementation principle of a reciprocating gasifier according to an embodiment of this application is as follows:
[0029] In use, fuel enters the gasifier body 1 through the feeding hopper 2 and the feeding valve 3. The furnace is divided into a drying zone, a gasification zone, and a combustion zone from front to back, with corresponding drying blowers 10, gasification blowers 11, and combustion blowers 12. The blowing in each zone does not interfere with each other, and ash and slag are discharged independently. The hydraulic cylinder 9 drives the second mounting bracket 7 to move back and forth, which in turn drives the grate 8 to push the fuel gradually towards the front of the furnace. The fuel goes through the drying, gasification, and combustion processes in sequence. When the grate 8 moves, the second inclined block 22 fixed to it... In synchronous motion, when the grate 8 is pushed forward, the second inclined block 22 presses the inclined surface of the first inclined block 21, forcing the pusher plate 18 to slide laterally towards the center of the furnace. The pusher plate 18 pushes the edge fuel towards the center to prevent accumulation. When resetting, the spring 17 pulls the reset rod 15, causing the pusher plate 18 to return to its original position along the direction of the tubular shell 16. The inclined surface of the baffle plate 14 prevents fuel from falling onto the top of the shell 13. The horizontal plate 20 prevents fuel from getting stuck when the pusher plate 18 comes out. The through hole 19 replenishes air for the side fuel.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A reciprocating gasifier characterized by, The gasifier includes a gasifier body (1), a feeding hopper (2) installed at the upper end of the gasifier body (1), a feeding valve (3) installed on the feeding hopper (2), a gas outlet pipe (4) installed at the front end of the gasifier body (1), a furnace arch (5) installed at the front of the inner side of the gasifier body (1), a first mounting frame (6) installed at the rear of the inner side of the gasifier body (1), a second mounting frame (7) installed in the middle of the first mounting frame (6), a grate (8) installed on both the first mounting frame (6) and the second mounting frame (7), and a hydraulic cylinder (9) installed at the rear end of the second mounting frame (7). A drying blower (10), a gasification blower (11), and a combustion blower (12) are arranged sequentially on the inner side of the body (1) near the bottom. A material transfer assembly is symmetrically arranged on the first mounting frame (6). The material transfer assembly includes a housing (13). A reset assembly is installed through the side of the housing (13). A pusher plate (18) is arranged on the inner side of the housing (13). A first inclined block (21) is fixedly connected to one end of the pusher plate (18) near the housing (13). A second inclined block (22) is slidably connected to the inclined surface of the first inclined block (21). The second inclined block (22) is fixedly connected to the grate (8).
2. A reciprocating gasifier according to claim 1, characterized in that: The reset assembly includes a reset rod (15), one end of which is fixedly connected to the pusher plate (18), and the other end of which is fitted with a tubular shell (16). A spring (17) is installed between the outer side of the reset rod (15) and the tubular shell (16).
3. A reciprocating gasifier according to claim 1, wherein: A horizontal plate (20) is fixedly connected to the upper side wall of the pusher plate (18), and the horizontal plate (20) is located on the inner side of the housing (13).
4. A reciprocating gasifier according to claim 1, wherein: The bottom of the housing (13) is designed to be through, and the pusher plate (18) has several evenly distributed through holes (19).
5. A reciprocating gasifier according to claim 1, wherein: The upper end of the shell (13) is fixed with a baffle plate (14), and the baffle plate (14) is provided with an inclined surface facing the grate (8).