Biomass fixed bed gasification device

Abstract

The utility model belongs to the technical field of biomass fixed beds, and particularly relates to a biomass fixed bed gasification device which comprises a biomass fixed bed and an elevator, a deslagging device is arranged in the biomass fixed bed, and a feeding device is arranged in the elevator. According to the biomass fixed bed gasification device, a rotating motor is started to drive a rotating shaft to rotate in a rotating bearing, so that an arc-shaped impact plate is driven to rotate to impact a connecting ring, the connecting ring is driven to vibrate up and down at the top of an extension spring, and a conical plate is driven to vibrate; and biomass raw materials discharged through a connecting pipe fall on a homogenizing plate, the impact force generated by falling of the biomass raw materials drives a rolling shaft to rotate in a fixed bearing, the biomass raw materials are scattered through the homogenizing plate, and the biomass raw materials are crushed through a crushing device, so that the biomass raw materials are crushed, and the crushing effect of the biomass raw materials is improved. And the materials loosely fall on the conical plate, so that the cracking reaction is better carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass fixed bed, in particular to a biomass fixed bed gasification device. Background Art

[0002] The combustible gas produced by the biomass gasification device is a green new energy with strong vitality. The raw materials for the production of plant gas are crop straw, forest waste, edible fungus residue, cattle and sheep manure and all combustible substances. It is an inexhaustible renewable resource that can replace traditional wood stoves and replace liquefied gas. The existing biomass gasification device needs to be manually loaded by the staff during use, which increases the labor intensity of the staff and reduces the feeding efficiency. In addition, the raw materials are easily mixed with metal impurities, which can easily affect the gasification.

[0003] For example, a biomass fixed bed gasification system is disclosed in Chinese patent announcement number CN217077505U. When in use, a first servo motor is provided to drive the screw to rotate, so that the threaded sleeve can drive the L-shaped fixed plate to rise and fall. When the L-shaped fixed plate reaches a specified height, the horizontal position of the L-shaped fixed plate can be adjusted by controlling the first electric telescopic rod. The angle of the material placement plate can be controlled by providing a second electric telescopic rod, so that the raw materials on the material placement plate can be poured into the inside of the feeding funnel without the need for manual addition by the staff, thereby reducing the labor intensity of the staff and improving the feeding efficiency. The second servo motor is provided to drive the first bevel gear to rotate, so that the second bevel gear can drive the transmission shaft to rotate, so that the raw materials can be thoroughly crushed, which is beneficial to gasification and combustion, and avoids the phenomenon of insufficient combustion. The third servo motor is provided on both sides of the feeding funnel to drive the magnetic extrusion roller to extrude the raw materials. At the same time, the magnetic extrusion roller can absorb metal impurities mixed in the raw materials to avoid excessive metal impurities in the raw materials affecting the gasification effect.

[0004] However, the biomass fixed bed gasification system in the above application has certain limitations because the biomass raw materials are accumulated inside and the ash is accumulated at the bottom after the cracking reaction, which affects the subsequent biomass cracking reaction.

[0005] Therefore, we urgently need to provide a biomass fixed bed gasification device. Utility Model Content

[0006] The utility model aims to provide a biomass fixed bed gasification device to solve the problem that the biomass fixed bed gasification system proposed in the above background technology has biomass raw materials accumulated inside, and after the cracking reaction, the internal ash accumulates at the bottom, affecting the subsequent biomass cracking reaction.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a biomass fixed bed gasification device, comprising a biomass fixed bed and an elevator, wherein the elevator is installed on the right outer surface of the biomass fixed bed, a slag discharge device is arranged inside the biomass fixed bed, and a feeding device is arranged inside the elevator.

[0008] The slag discharge device includes a rotating motor, a rotating bearing, a rotating shaft, an arc-shaped impact plate, and a slag discharge assembly. The rotating motor is installed at the lower middle part of the left outer surface of the biomass fixed bed, and the rotating bearing is installed inside the lower middle part of the left outer surface of the biomass fixed bed. The rotating shaft is connected to the output end of the rotating motor and is rotatably connected to the inside of the rotating bearing, and its right end extends into the inside of the biomass fixed bed. The arc-shaped impact plate is fixedly connected to the right end of the rotating shaft.

[0009] A further improvement is that the slag discharge assembly includes a mounting seat, a tension spring, a connecting ring, and a conical plate, four of the mounting seats are fixedly connected in a ring shape to the lower middle portion of the inner wall of the biomass fixed bed, four of the tension springs are fixedly connected to the upper surface of the mounting seat, the connecting ring is fixedly connected to the top of the tension spring, and the conical plate is fixedly connected to the inside of the connecting ring.

[0010] A further improvement is that air-permeable filtering holes are evenly opened on the upper surface of the conical plate, and the arc-shaped impact plate is located below the connecting ring. The rotating motor is started to drive the rotating shaft to rotate inside the rotating bearing, thereby driving the arc-shaped impact plate to rotate and impact the connecting ring, thereby driving the connecting ring to vibrate up and down on the top of the tension spring, thereby driving the conical plate to vibrate, thereby shaking off the ash that has been cracked on the upper surface of the conical plate through the air-permeable filtering holes, which is more convenient for the cracking reaction.

[0011] A further improvement is that an air pipe is fixedly connected to the lower left outer surface of the biomass fixed bed, a gas pipe is fixedly connected to the top of the back side of the biomass fixed bed, a slag discharge pipe is fixedly connected to the bottom center of the biomass fixed bed, an electric sealing valve is installed on the outer surface of the slag discharge pipe, oxygen is transported to the interior of the biomass fixed bed through the air pipe, biomass gas generated by cracking is discharged through the gas pipe, and ash after the reaction is discharged through the slag discharge pipe.

[0012] A further improvement is that the feeding device comprises a feeding unit and a homogenizing unit.

[0013] The feeding unit includes a feed hopper, a lifting motor, a rotating shaft, a lifting auger, and a connecting pipe. The feed hopper is fixedly connected to the right outer surface of the elevator, the lifting motor is installed at the top center of the elevator, the rotating shaft is connected to the output end of the lifting motor, and its bottom extends into the inner bottom of the elevator, the lifting auger is fixedly connected to the outer surface of the rotating shaft, and the connecting pipe is fixedly connected to the top left side of the elevator, and its left end extends into the interior of the biomass fixed bed. The crushed biomass raw material is poured into the interior of the feed hopper, and the lifting motor is started to drive the rotating shaft to rotate, thereby driving the lifting auger on its outer surface to rotate, so that the biomass raw material at the bottom of the elevator is twisted and sent to the top and discharged into the interior of the biomass fixed bed through the connecting pipe. No manpower is required for loading, which improves production efficiency.

[0014] A further improvement is that the homogenizing unit includes a fixed bearing, a rolling shaft, and a homogenizing plate, the two fixed bearings are respectively installed on the front and rear sides of the upper part of the biomass fixed bed, the rolling shaft is rotatably connected to the inside of the fixed bearing, and the five homogenizing plates are fixedly connected to the outer surface of the rolling shaft in a ring shape.

[0015] A further improvement is that the outer surface of the homogenizing plate is evenly penetrated with drop holes, and the biomass raw materials discharged through the connecting pipe fall on the homogenizing plate. The impact force generated by the fall drives the rolling shaft to rotate inside the fixed bearing, thereby breaking up the biomass raw materials through the homogenizing plate and making them fall loosely on the conical plate, so as to better carry out the cracking reaction.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The biomass fixed bed gasification device starts the rotating motor to drive the rotating shaft to rotate inside the rotating bearing, thereby driving the arc-shaped impact plate to rotate and impact the connecting ring, thereby driving the connecting ring to vibrate up and down on the top of the tension spring, thereby driving the conical plate to vibrate, so that the ash that has been cracked on the upper surface of the conical plate is shaken off through the air permeable filter holes, which is more convenient for the cracking reaction.

[0018] 2. The biomass fixed bed gasification device pours the crushed biomass raw materials into the feed hopper, starts the lifting motor to drive the rotating shaft to rotate, thereby driving the lifting auger on its outer surface to rotate, so that the biomass raw materials at the bottom of the elevator are twisted and sent to the top through the connecting pipe and discharged into the interior of the biomass fixed bed. No manual feeding is required, which improves production efficiency.

[0019] 3. In the biomass fixed bed gasification device, the biomass raw materials discharged through the connecting pipe fall onto the homogenizing plate, and the impact force generated by the fall drives the tumbling shaft to rotate inside the fixed bearing, thereby breaking up the biomass raw materials through the homogenizing plate and making them fall loosely onto the conical plate for better cracking reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the lower half of the biomass fixed bed of the utility model;

[0022] Figure 3 It is a schematic diagram of the internal structure of the lower half of the biomass fixed bed of the utility model in a side view;

[0023] Figure 4 It is a schematic cross-sectional structural diagram of the feeding unit of the utility model.

[0024] In the figure: 1. biomass fixed bed; 2. elevator; 301. rotating motor; 302. rotating bearing; 303. rotating shaft; 304. arc impact plate; 305. slag discharge assembly; 3051. mounting seat; 3052. tension spring; 3053. connecting ring; 3054. conical plate; 306. air pipe; 307. gas pipe; 308. slag discharge pipe; 309. electric sealing valve; 401. feed hopper; 402. lifting motor; 403. rotating shaft; 404. lifting auger; 405. connecting pipe; 406. fixed bearing; 407. tumbling shaft; 408. homogenizing plate. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A biomass fixed bed gasification device comprises a biomass fixed bed 1 and an elevator 2. The elevator 2 is installed on the right outer surface of the biomass fixed bed 1. A slag discharge device is arranged inside the biomass fixed bed 1, and a feeding device is arranged inside the elevator 2.

[0029] The slag discharge device includes a rotating motor 301, a rotating bearing 302, a rotating shaft 303, an arc-shaped impact plate 304, and a slag discharge assembly 305. The rotating motor 301 is installed at the lower middle part of the left outer surface of the biomass fixed bed 1, and the rotating bearing 302 is installed inside the lower middle part of the left outer surface of the biomass fixed bed 1. The rotating shaft 303 is connected to the output end of the rotating motor 301 and is rotatably connected to the inside of the rotating bearing 302, and its right end extends into the inside of the biomass fixed bed 1. The arc-shaped impact plate 304 is fixedly connected to the right end of the rotating shaft 303.

[0030] The slag discharge assembly 305 includes a mounting seat 3051, a tension spring 3052, a connecting ring 3053, and a conical plate 3054. The four mounting seats 3051 are fixedly connected to the middle and lower part of the inner wall of the biomass fixed bed 1 in a ring shape, the four tension springs 3052 are fixedly connected to the upper surface of the mounting seat 3051, the connecting ring 3053 is fixedly connected to the top of the tension spring 3052, and the conical plate 3054 is fixedly connected to the inside of the connecting ring 3053.

[0031] The upper surface of the conical plate 3054 is evenly provided with air-permeable filtering holes. The arc-shaped impact plate 304 is located below the connecting ring 3053. The rotating motor 301 is started to drive the rotating shaft 303 to rotate inside the rotating bearing 302, thereby driving the arc-shaped impact plate 304 to rotate and impact the connecting ring 3053, thereby driving the connecting ring 3053 to vibrate up and down on the top of the tension spring 3052, thereby driving the conical plate 3054 to vibrate, thereby shaking off the ash that has been cracked on the upper surface of the conical plate 3054 through the air-permeable filtering holes, which is more convenient for the cracking reaction.

[0032] An air pipe 306 is fixedly connected to the lower left outer surface of the biomass fixed bed 1, a gas pipe 307 is fixedly connected to the top of the back of the biomass fixed bed 1, and a slag discharge pipe 308 is fixedly connected to the bottom center of the biomass fixed bed 1. An electric sealing valve 309 is installed on the outer surface of the slag discharge pipe 308. Oxygen is transported to the interior of the biomass fixed bed 1 through the air pipe 306, and the biomass gas generated by cracking is discharged through the gas pipe 307, and the ash after the reaction is discharged through the slag discharge pipe 308.

[0033] The feeding device comprises a feeding unit.

[0034] The feeding unit includes a feed hopper 401, a lifting motor 402, a rotating shaft 403, a lifting auger 404, and a connecting pipe 405. The feed hopper 401 is fixedly connected to the right outer surface of the elevator 2, the lifting motor 402 is installed at the top center of the elevator 2, the rotating shaft 403 is connected to the output end of the lifting motor 402, and its bottom extends into the inner bottom of the elevator 2, the lifting auger 404 is fixedly connected to the outer surface of the rotating shaft 403, and the connecting pipe 405 is fixedly connected to the top left side of the elevator 2, and its left end extends into the interior of the biomass fixed bed 1. The crushed biomass raw material is poured into the interior of the feed hopper 401, and the lifting motor 402 is started to drive the rotating shaft 403 to rotate, thereby driving the lifting auger 404 on its outer surface to rotate, so that the biomass raw material at the bottom of the elevator 2 is twisted and sent to the top and discharged into the interior of the biomass fixed bed 1 through the connecting pipe 405. No manpower is required for loading, thereby improving production efficiency.

[0035] Embodiment 2:

[0036] On the basis of Example 1, the feeding device includes a homogenizing unit, which includes a fixed bearing 406, a rolling shaft 407, and a homogenizing plate 408. The two fixed bearings 406 are respectively installed on the front and rear sides of the upper part of the interior of the biomass fixed bed 1, and the rolling shaft 407 is rotatably connected to the interior of the fixed bearing 406. Five homogenizing plates 408 are fixedly connected to the outer surface of the rolling shaft 407 in a ring shape.

[0037] The outer surface of the homogenizing plate 408 is evenly penetrated with drop holes, and the biomass raw materials discharged through the connecting pipe 405 fall on the homogenizing plate 408. The impact force generated by the fall drives the rolling shaft 407 to rotate inside the fixed bearing 406, thereby breaking up the biomass raw materials through the homogenizing plate 408, making them fall loosely on the conical plate 3054, so as to better perform the cracking reaction.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A biomass fixed bed gasification device, comprising a biomass fixed bed (1) and an elevator (2), wherein the elevator (2) is installed on the right outer surface of the biomass fixed bed (1), characterized in that: A slag discharge device is provided inside the biomass fixed bed (1), and a feeding device is provided inside the elevator (2); The slag discharge device comprises a rotating motor (301), a rotating bearing (302), a rotating shaft (303), an arc-shaped impact plate (304), and a slag discharge assembly (305). The rotating motor (301) is installed at the lower middle part of the left outer surface of the biomass fixed bed (1). The rotating bearing (302) is installed inside the lower middle part of the left outer surface of the biomass fixed bed (1). The rotating shaft (303) is connected to the output end of the rotating motor (301) and is rotatably connected to the inside of the rotating bearing (302). The right end of the rotating shaft (303) extends into the inside of the biomass fixed bed (1). The arc-shaped impact plate (304) is fixedly connected to the right end of the rotating shaft (303).

2. A biomass fixed bed gasification device according to claim 1, characterized in that: The slag discharge assembly (305) comprises a mounting seat (3051), a tension spring (3052), a connecting ring (3053), and a conical plate (3054); the mounting seat (3051) is annularly fixedly connected to the middle and lower part of the inner wall of the biomass fixed bed (1); the tension spring (3052) is fixedly connected to the upper surface of the mounting seat (3051); the connecting ring (3053) is fixedly connected to the top of the tension spring (3052); and the conical plate (3054) is fixedly connected to the inside of the connecting ring (3053).

3. The biomass fixed bed gasification device according to claim 2, characterized in that: The upper surface of the conical plate (3054) is evenly provided with air-permeable filtering holes, and the arc-shaped impact plate (304) is located below the connecting ring (3053).

4. The biomass fixed bed gasification device according to claim 1, characterized in that: An air pipe (306) is fixedly connected to the lower left outer surface of the biomass fixed bed (1), a gas pipe (307) is fixedly connected to the top of the back of the biomass fixed bed (1), a slag discharge pipe (308) is fixedly connected to the center of the bottom of the biomass fixed bed (1), and an electric sealing valve (309) is installed on the outer surface of the slag discharge pipe (308).

5. The biomass fixed bed gasification device according to claim 1, characterized in that: The feeding device comprises a feeding unit and a homogenizing unit; The feeding unit comprises a feed hopper (401), a lifting motor (402), a rotating shaft (403), a lifting auger (404), and a connecting pipe (405); the feed hopper (401) is fixedly connected to the right outer surface of the lift (2); the lifting motor (402) is installed at the top center of the lift (2); the rotating shaft (403) is connected to the output end of the lifting motor (402), and its bottom extends into the inner bottom of the lift (2); the lifting auger (404) is fixedly connected to the outer surface of the rotating shaft (403); the connecting pipe (405) is fixedly connected to the top left side of the lift (2), and its left end extends into the interior of the biomass fixed bed (1).

6. The biomass fixed bed gasification device according to claim 5, characterized in that: The homogenizing unit comprises a fixed bearing (406), a rolling shaft (407), and a homogenizing plate (408); the fixed bearing (406) is respectively installed on the front and rear sides of the upper part of the interior of the biomass fixed bed (1); the rolling shaft (407) is rotatably connected to the interior of the fixed bearing (406); and the homogenizing plate (408) is annularly fixedly connected to the outer surface of the rolling shaft (407).

7. The biomass fixed bed gasification device according to claim 6, characterized in that: The outer surface of the homogenizing plate (408) is evenly penetrated with material dropping holes.

Images