Biomass gasifier with level detection

Abstract

This utility model discloses a biomass gasification furnace with level detection function, relating to the field of biomass gasification furnace technology. It includes a device body, a feeding mechanism, and a slag discharge mechanism. The device body includes a cover plate, with lidar sensors installed at both ends of the inner wall of the cover plate. The slag discharge mechanism includes two fixed plates and two hydraulic cylinders. An adjusting screw is installed on the top of the fixed plate, and a movable baffle is threaded onto the outer wall of the adjusting screw. The two hydraulic cylinders are respectively installed on both sides of the top of the cover plate, and scrapers are installed at the bottom of the piston rods of the two hydraulic cylinders. This utility model uses two lidar sensors to detect the amount of material inside the device body, thus facilitating the addition of fuel. The rotation of the two adjusting screws moves the two movable baffles, facilitating the discharge of waste slag from the device body and ensuring stable operation of the device.

Description

Technical Field

[0001] This utility model relates to the field of biomass gasification furnace technology, specifically to a biomass gasification furnace with a level detection function. Background Technology

[0002] A biomass gasifier is a device that converts biomass raw materials such as crop straw and forestry waste into combustible gas through thermochemical conversion. It belongs to green new energy technology equipment. Its core principle is to use limited oxygen to burn part of the biomass to generate heat, which drives the thermochemical decomposition of the remaining raw materials, ultimately producing clean fuel gas.

[0003] A biomass gasification furnace, authorized by publication number CN221644848U, includes a furnace body, supporting components, a slag box, a furnace bridge component, and a driving component. Several of the supporting components are installed on the bottom of the furnace body. The slag box is installed on the bottom of the furnace body, located between the supporting components. The slag box has an ignition port and a slag outlet; the ignition port communicates with the furnace body, and the slag outlet communicates with the outside. The inner wall of the slag box also has a baffle portion. The furnace bridge component is slidably located inside the slag box. The driving component is installed outside the slag box, and its driving end is connected to the furnace bridge component. The furnace bridge component includes an ignition portion, a first sealing portion, and a second sealing portion. The first sealing portion slides along the top of the slag box and covers the ignition port; the second sealing portion slides along the bottom of the slag box and covers the slag outlet. This application ensures airtightness during combustion.

[0004] The existing technology has the following shortcomings: During the operation of the existing biomass gasifier, it is not convenient to detect and control the amount of material inside the gasifier. This makes it easy for the fuel inside the gasifier to be added too much or too little at one time. Moreover, the slag produced during operation cannot be discharged quickly, which makes the fuel level easily fall below the set low level or above the set high level, thus affecting the working effect of the gasifier. Utility Model Content

[0005] The purpose of this invention is to provide a biomass gasification furnace with a level detection function. Two lidar sensors can detect the amount of material inside the device, allowing for convenient addition of fuel. The rotation of two adjusting screws can move two movable baffles, facilitating the discharge of waste residue from the device and ensuring stable operation of the device, thus addressing the aforementioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a biomass gasification furnace with level detection function, comprising a device body, and further comprising:

[0007] The feeding mechanism is located at the top of the device body and the slag discharge mechanism is located on the outside of the device body;

[0008] The device body includes a fixed outer shell, a controller is fixedly installed on one outer wall of the fixed outer shell, a cover plate is provided on the top of the fixed outer shell, and lidar is fixedly installed on both ends of the inner wall of the cover plate;

[0009] The slag discharge mechanism includes two fixed plates and two hydraulic cylinders. The two fixed plates are respectively set on the outer walls of both ends of the device body. An adjusting screw is rotatably installed on the top of the fixed plate. A servo motor is set on the end of the adjusting screw away from the device body. A movable baffle is threaded onto the outer wall of the adjusting screw. The two hydraulic cylinders are respectively fixedly installed on both sides of the top of the cover plate. A scraper is fixedly installed on the bottom of the piston rod of the two hydraulic cylinders.

[0010] Preferably, an exhaust pipe is fixedly installed on the top of the outer wall of one end of the fixed housing, a slag discharge pipe is fixedly installed on the inner wall of the bottom of the fixed housing, and a filter plate is fixedly installed on the bottom inner side of the fixed housing, with the filter plate positioned above the two movable baffles.

[0011] Preferably, the outer side of the cover plate is threaded with multiple connecting bolts, the bottom of the multiple connecting bolts is threaded to the inner wall of the top of the fixed housing, and the outer walls at both ends of the fixed housing are fixedly installed with connecting seats, and two of the connecting seats are located below the filter plate.

[0012] Preferably, a plurality of mounting bolts are threaded into the inner wall of the end of the fixing plate near the fixing shell, and the end of the mounting bolt away from the fixing plate is threaded to the inner wall of the adjacent connecting seat. The inner wall of the fixing plate is provided with a movable groove.

[0013] Preferably, the outer wall of the movable baffle is slidably connected to the inner wall of the adjacent movable groove, one end of the top of the fixed plate is fixedly connected to the servo motor, and the servo motor is connected to one end of the adjacent adjusting screw through an output shaft.

[0014] Preferably, the feeding mechanism includes a storage bin, the storage bin is fixedly fitted with a cover plate on top, a lifting cylinder is fixedly fitted on the top of the storage bin, and a bell valve is fixedly fitted on the bottom of the piston rod of the lifting cylinder.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. Two lidar sensors can detect the amount of fuel inside the device. When the fuel level is low, fuel can be easily added to the device through the feeding mechanism. At the same time, during the operation of the device, the servo motor drives the adjacent adjusting screw to rotate, which can drive the two movable baffles to move in opposite directions. This allows the generated slag to be discharged from the device through the filter plate and slag discharge pipe. This ensures that the amount of fuel inside the device is always between high and low levels, thereby ensuring the working effect of the gasifier and allowing the fuel to be fully gasified.

[0017] 2. Two hydraulic cylinders drive the scraper to move up and down along the inner wall of the fixed outer shell, which can thoroughly clean the inner wall of the fixed outer shell. After the gasifier finishes working, the inner wall of the device can be cleaned quickly, which can prevent the residue of slag from affecting the subsequent fuel gasification work, and thus ensure the stability of the gasifier's working state. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a partial sectional view of the present invention.

[0021] Figure 3 This is an exploded view of the device body and feeding mechanism of this utility model.

[0022] Figure 4 This is an exploded view of the slag discharge mechanism of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Device body; 101. Fixed outer casing; 102. Controller; 103. Exhaust pipe; 104. Filter plate; 105. Slag discharge pipe; 106. Connecting seat; 107. Cover plate; 108. Connecting bolts; 109. LiDAR;

[0025] 2. Feeding mechanism; 201. Storage bin; 202. Lifting cylinder; 203. Bell valve;

[0026] 3. Slag discharge mechanism; 301. Fixed plate; 302. Mounting bolts; 303. Movable groove; 304. Adjusting screw; 305. Servo motor; 306. Movable baffle; 307. Hydraulic cylinder; 308. Scraper. Detailed Implementation

[0027] This utility model provides, for example Figure 1 The biomass gasification furnace shown includes a device body 1, and further includes:

[0028] The feeding mechanism 2 is located at the top of the device body 1, and the slag discharge mechanism 3 is located on the outside of the device body 1.

[0029] To facilitate the detection and control of fuel quantity inside the gasifier, such as Figure 1-4 As shown, the device body 1 includes a fixed outer shell 101. A controller 102 is fixedly installed on one side of the outer wall of the fixed outer shell 101. A cover plate 107 is provided on the top of the fixed outer shell 101. LiDAR 109s are fixedly installed on both ends of the inner wall of the cover plate 107. The slag discharge mechanism 3 includes two fixed plates 301 and two hydraulic cylinders 307. The two fixed plates 301 are respectively provided on the outer walls of both ends of the device body 1. An adjusting screw 304 is rotatably installed on the top of the fixed plate 301. A servo motor 305 is provided at the end of the adjusting screw 304 away from the device body 1. A movable baffle 306 is threaded onto the outer wall of the adjusting screw 304. The two hydraulic cylinders 307... Two hydraulic cylinders 307 are fixedly installed on the top two sides of the cover plate 107. Scrapers 308 are fixedly installed at the bottom of the piston rods of the two hydraulic cylinders 307. The amount of fuel inside the fixed shell 101 can be controlled by two laser radars 109. When the amount of fuel is high, the controller 102 causes two servo motors 305 to drive adjacent adjusting screws 304 to rotate, which in turn drives two movable baffles 306 to move in opposite directions. This allows the slag at the bottom of the inner side of the fixed shell 101 to be discharged through the slag discharge pipe 105. This allows for convenient control of the amount of fuel, keeping it between high and low levels, thus ensuring the working effect of the gasifier.

[0030] To facilitate the assembly and disassembly of the device body 1, such as Figure 1-3 As shown, an exhaust pipe 103 is fixedly installed on the top of the outer wall of one end of the fixed housing 101, a slag discharge pipe 105 is fixedly installed on the inner wall of the bottom of the fixed housing 101, and a filter plate 104 is fixedly installed on the bottom inner side of the fixed housing 101. The filter plate 104 is located above two movable baffles 306. Multiple connecting bolts 108 are threaded onto the outer side of the cover plate 107. The bottom of the multiple connecting bolts 108 is threaded to the inner wall of the top of the fixed housing 101. Connecting seats 106 are fixedly installed on the outer walls of both ends of the fixed housing 101. The two connecting seats 106 are located below the filter plate 104. The cover plate 107 and the fixed housing 101 can be connected and fixed by the connecting bolts 108. The filter plate 104 can filter and separate the fuel and slag, so that the slag can be conveniently discharged through the slag discharge pipe 105. The exhaust pipe 103 can discharge the generated gas from the inside of the fixed housing 101.

[0031] In order to ensure the stable operation of the slag discharge mechanism 3, such as Figure 2-4 As shown, a plurality of mounting bolts 302 are threaded into the inner wall of the fixed plate 301 near the fixed housing 101. The end of the mounting bolt 302 away from the fixed plate 301 is threaded into the inner wall of the adjacent connecting seat 106. The inner wall of the fixed plate 301 has a movable groove 303. The outer wall of the movable baffle 306 is slidably connected to the inner wall of the adjacent movable groove 303. The top end of the fixed plate 301 is fixedly connected to the servo motor 305. The servo motor 305 is connected to one end of the adjacent adjusting screw 304 through an output shaft. The mounting bolts 302 are threaded into the fixed plate 301 and threaded into the inner wall of the adjacent connecting seat 106, allowing the operator to easily install and disassemble it. The movable groove 303 can limit the movement of the movable baffle 306. The servo motor 305 drives the adjacent adjusting screw 304 to rotate, so that the movable baffle 306 moves along the inner wall of the movable groove 303, keeping it stable during the movement. Thus, the movable baffle 306 can stably control the slag discharge of the gasifier.

[0032] To facilitate the addition of fuel to the interior of the fixed housing 101, such as Figure 1-3 As shown, the feeding mechanism 2 includes a storage bin 201. The storage bin 201 is fixedly mounted on the top of a cover plate 107. A lifting cylinder 202 is fixedly mounted on the top of the storage bin 201. A bell valve 203 is fixedly mounted on the bottom of the piston rod of the lifting cylinder 202. The cover plate 107 can install and fix the storage bin 201. When the lidar 109 detects that the fuel inside the fixed housing 101 is at a low level, the controller 102 causes the lifting cylinder 202 to move downward, causing the bell valve 203 to open, so that the fuel inside the storage bin 201 can fall into the fixed housing 101, thereby ensuring that the fuel inside the gasifier can always be between a high level and a low level.

[0033] During the operation of the gasifier, the controller 102 extends the lifting cylinder 202, allowing the bell valve 203 to open the bottom of the storage hopper 201, thus enabling fuel to be added into the fixed outer shell 101. After fuel addition, the lifting cylinder 202 retracts, causing the bell valve 203 to close the bottom of the storage hopper 201. The fuel can then be ignited using an internal igniter. The resulting combustion gas is discharged through the exhaust pipe 103. Simultaneously, two lidar sensors 109 detect the amount of fuel inside the fixed outer shell 101. When the fuel level is high, the controller 102 causes two servo motors 305 to drive adjacent adjusting screws 304 to rotate, thereby causing adjacent movable baffles 306 to move along the inner wall of the movable groove 303 on their outer side. The two movable baffles 306 move in opposite directions, causing the filter plate 104 to... The slag from the furnace can pass through the filter plate 104 and be discharged from the inside of the fixed shell 101 through the slag discharge pipe 105. At the same time, when the fuel is at a low level, the controller 102 causes the lifting cylinder 202 to extend and the bell valve 203 to descend, opening the bottom of the storage bin 201. This allows the fuel inside the storage bin 201 to fall into the fixed shell 101, thus ensuring that the fuel is always between high and low levels, thereby guaranteeing the working effect of the gasifier. After the gasifier finishes working, the controller 102 causes the hydraulic cylinder 307 to extend, causing the scraper 308 to move up and down along the inner wall of the fixed shell 101. This cleans the inner wall of the gasifier and prevents slag from adhering to the inner wall of the device, affecting the next operation. This embodiment specifically solves the problem of poor working effect of the gasifier caused by the inability to conveniently detect and control the amount of fuel in the prior art.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A biomass gasification furnace with a material level detection function, comprising a device body (1), characterized in that, Also includes: The feeding mechanism (2) is located on the top of the device body (1) and the slag discharge mechanism (3) is located on the outside of the device body (1); The device body (1) includes a fixed outer shell (101), a controller (102) is fixedly installed on one side of the outer wall of the fixed outer shell (101), a cover plate (107) is provided on the top of the fixed outer shell (101), and a laser radar (109) is fixedly installed on both ends of the inner wall of the cover plate (107). The slag discharge mechanism (3) includes two fixed plates (301) and two hydraulic cylinders (307). The two fixed plates (301) are respectively disposed on the outer walls of both ends of the device body (1). An adjusting screw (304) is rotatably installed on the top of the fixed plate (301). A servo motor (305) is disposed at the end of the adjusting screw (304) away from the device body (1). A movable baffle (306) is threaded onto the outer wall of the adjusting screw (304). The two hydraulic cylinders (307) are respectively fixedly installed on both sides of the top of the cover plate (107). A scraper (308) is fixedly installed at the bottom of the piston rod of the two hydraulic cylinders (307).

2. The biomass gasification furnace with a material level detection function according to claim 1, characterized in that: An exhaust pipe (103) is fixedly installed on the top of the outer wall of one end of the fixed housing (101), a slag discharge pipe (105) is fixedly installed on the inner wall of the bottom of the fixed housing (101), and a filter plate (104) is fixedly installed on the bottom of the inner side of the fixed housing (101). The filter plate (104) is located above two movable baffles (306).

3. The biomass gasification furnace with a material level detection function according to claim 2, characterized in that: The cover plate (107) is threaded with multiple connecting bolts (108) on the outside. The bottom of the multiple connecting bolts (108) is threaded to the top inner wall of the fixed housing (101). The outer walls at both ends of the fixed housing (101) are fixedly installed with connecting seats (106). The two connecting seats (106) are located below the filter plate (104).

4. The biomass gasification furnace with a material level detection function according to claim 3, characterized in that: Multiple mounting bolts (302) are threaded into the inner wall of the fixed plate (301) near the fixed outer shell (101). The end of the mounting bolt (302) away from the fixed plate (301) is threaded to the inner wall of the adjacent connecting seat (106). The inner wall of the fixed plate (301) is provided with a movable groove (303).

5. The biomass gasification furnace with a material level detection function according to claim 4, characterized in that: The outer wall of the movable baffle (306) is slidably connected to the inner wall of the adjacent movable groove (303), one end of the top of the fixed plate (301) is fixedly connected to the servo motor (305), and the servo motor (305) is connected to one end of the adjacent adjusting screw (304) through an output shaft.

6. The biomass gasification furnace with a material level detection function according to claim 1, characterized in that: The feeding mechanism (2) includes a storage bin (201), the storage bin (201) is fixedly installed with a cover plate (107) on the top, a lifting cylinder (202) is fixedly installed on the top of the storage bin (201), and a bell valve (203) is fixedly installed at the bottom of the piston rod of the lifting cylinder (202).

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