A material distribution device for a gasifier

Abstract

The application relates to the technical field of biomass gasification furnaces, and discloses a distributing device of a gasification furnace, which is mainly composed of a gasification furnace body, a working box body, a feeding cylinder, a feeding auger, a distributing auger, an extension cavity and an extension plate. The lower side of the gasification furnace body is provided with the working box body, the inner cavity of the gasification furnace body is communicated with the inner cavity of the working box body, the left side of the gasification furnace body is provided with the feeding cylinder, the feeding cylinder is provided with the feeding auger, the inner cavity of the gasification furnace body is provided with the distributing auger, the inside of the working box body is provided with the extension cavity, and the extension plate is sealingly and movably arranged in the inner cavity of the extension cavity. The distributing auger and the extension plate are arranged, so that the distributing auger contacts the biomass entering the middle position of the gasification furnace body during operation, and then drives the biomass to move to the two sides of the extension plate. Through the above action, the subsequent biomass is more evenly dropped onto the reciprocating grate, so that the probability that the gas production efficiency is affected is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of biomass gasification furnaces, in particular to a material distribution device of a gasification furnace. BACKGROUND

[0002] The biomass gasification furnace is a device for manufacturing biomass gas by taking biomass as raw material, and the biomass gasification furnace usually uses a material distribution device to deliver biomass into the gasification furnace during work, so that the biomass generates biomass gas through a series of reactions.

[0003] Some existing material distribution mechanisms mainly consist of a feeding cylinder and a feeding auger, and during use, biomass is input into the feeding cylinder, so that the feeding auger in the feeding cylinder drives the biomass to be gradually delivered to the surface of the grate in the gasification furnace body, and through the above action, the material distribution work of the gasification furnace is realized, but since the diameter of the feeding cylinder is smaller than the diameter of the gasification furnace, the biomass is conically stacked after falling onto the surface of the grate, thereby causing uneven distribution of the biomass on the surface of the grate, so that the subsequent gasification reaction of the biomass cannot be continuously and stably carried out, thereby affecting the gas production efficiency of the gasification furnace. SUMMARY

[0004] The application provides a material distribution device of a gasification furnace, which has the advantage of promoting uniform distribution of biomass on the surface of the grate, so as to solve the problem that uneven distribution of biomass affects the gas production efficiency of the gasification furnace.

[0005] To achieve the above-mentioned purpose, the application adopts the following technical scheme: a material distribution device of a gasification furnace, comprising: a gasification furnace body, a working box body is arranged on the lower side of the gasification furnace body, the inner cavity of the gasification furnace body is in communication with the inner cavity of the working box body, the inner cavity of the gasification furnace body is a circular cavity, the inner cavity of the working box body is a square cavity, a feeding cylinder is arranged on the left side of the gasification furnace body, a feeding auger is arranged in the feeding cylinder, one end of the feeding auger is fixedly connected with the output shaft of a first power mechanism, a material distribution auger is arranged in the inner cavity of the gasification furnace body, the material distribution auger is composed of a rotating shaft and auger blades, the rotating shaft is arranged at the left side position of the inner cavity of the gasification furnace body, both ends of the rotating shaft are rotationally connected with the wall of the gasification furnace body, one end of the rotating shaft is fixedly connected with the output shaft of a second power mechanism, auger blades are fixedly arranged on both sides of the midpoint of the rotating shaft, the rotation directions of the auger blades on both sides are opposite, an expansion cavity is formed in the inside of the working box body, an expansion plate is sealingly and movably arranged in the inner cavity of the expansion cavity, a hydraulic mechanism is arranged on the left side of the working box body, the output end of the hydraulic mechanism is in communication with the cavity in the inner cavity of the expansion cavity and located at the left side position of the expansion plate, and a reciprocating grate is arranged on the bottom surface of the inner cavity of the working box body.

[0006] Further, a through hole is arranged at the center of the rotating shaft, one side of the through hole is communicated with the water delivery mechanism, and the other side of the through hole is communicated with the water collecting mechanism.

[0007] Further, the left side of the telescopic plate is downwardly inclined.

[0008] Further, a lifting cavity is arranged at the right side of the telescopic plate, a lifting piece is slidingly arranged in the lifting cavity, an elastic piece is arranged at the lower side of the lifting piece, a connecting piece is arranged at the upper side of the lifting piece, the connecting piece extends out of the lifting cavity, a take-off piece is arranged at the upper side of the connecting piece, the upper side of the take-off piece is smoothly connected with the upper side of the telescopic plate, the upper side of the connecting piece is connected with the lower side of the take-off piece, the lower side of the connecting piece is connected with the lifting piece, and a fixing piece is fixedly arranged at the circumferential outer side of the rotating shaft and located between the auger blade and the inner wall of the gasifier body.

[0009] Further, the lifting cavities are equidistantly distributed along the radial direction of the rotating shaft, the elastic piece is an elastic metal sheet, the upper side of the connecting piece is fixedly connected with the lower side of the take-off piece, and the lower side of the connecting piece is fixedly connected with the upper side of the lifting piece.

[0010] Further, the lifting cavities are equidistantly distributed along the axial direction of the rotating shaft, the elastic piece is a spring, the two ends of the spring are respectively connected with the lower side of the lifting piece and the bottom surface of the lifting cavity, the number of the connecting pieces is four, the number of the take-off pieces is two, the two take-off pieces are distributed along the axial direction of the rotating shaft, the distance between the two take-off pieces is smaller than the minimum diameter of the biomass, the upper side of the connecting piece is hingedly connected with the lower side of the take-off piece, and the lower side of the connecting piece located at the most front side and the most rear side of the telescopic plate is movably connected with the lifting piece.

[0011] Further, the length of the fixing piece is greater than the minimum distance between the rotating shaft and the upper side of the take-off piece.

[0012] Further, the length of the fixing piece is smaller than the minimum distance between the rotating shaft and the upper side of the take-off piece, the arc-shaped end of the fixing piece is a magnetic end, a magnetic piece is fixedly arranged in the take-off piece, and the magnetic piece and the arc-shaped end of the fixing piece are repulsive to each other.

[0013] The application has the following beneficial effects:

[0014] The material distribution device of the gasifier provided by the application is provided with the material distribution auger and the telescopic plate, so that the material distribution auger contacts the biomass entering the middle position of the gasifier body during operation, and drives the biomass to move to both sides of the telescopic plate. Through the above action, the subsequent biomass falling on the reciprocating grate is more uniform, thereby reducing the probability of affecting the gas production efficiency.

[0015] Through the setting of the cloth screw conveyor and the telescopic plate, due to the downward inclination of the telescopic plate towards the one end of the feeding cylinder, the biomass brought to the two sides of the telescopic plate by the cloth screw conveyor will be affected by its own gravity, and then firstly moves to the side of the telescopic plate close to the feeding cylinder, and then, with the biomass continuously brought to the two sides of the telescopic plate, the biomass is distributed on the surface of the telescopic plate, and through the above-mentioned action, the biomass on the surface of the subsequent reciprocating grate is further uniformly distributed.

[0016] Through the setting of the fixing piece and the lifting piece, the biomass entering from the feeding cylinder will fall on the surface of the lifting piece, and at the same time, when the cloth screw conveyor rotates, it will drive the fixing piece to rotate synchronously, when the fixing piece approaches the lifting piece, it will drive the lifting piece to move downward, and then, when the fixing piece moves away from the lifting piece, the lifting piece will move upward to reset, through the above-mentioned action, the lifting piece will drive the biomass on the surface to shake, through the action, the biomass is displaced, and then the biomass is uniformly distributed on the lifting piece.

[0017] Through the setting of the fixing piece and the lifting piece, due to the inclined setting of the lifting piece and the shaking of the biomass on the surface of the lifting piece, the biomass can effectively move to the side of the surface of the lifting piece close to the feeding cylinder, through the above-mentioned action, the biomass on the surface of the subsequent reciprocating grate is further uniformly distributed. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which constitute a part of this specification, illustrate embodiments of the present disclosure and serve to explain the principles of the present disclosure.

[0019] The present application can be more clearly understood by referring to the following detailed description in conjunction with the accompanying drawings, in which:

[0020] Figure 1 is a schematic view of the internal structure of the gasification furnace body and the working box in the first embodiment of the present application;

[0021] Figure 2 is a schematic view of the internal structure of the gasification furnace body and the working box in the second embodiment of the present application; Figure 1 is a partial enlarged schematic view of structure A in the present application;

[0022] Figure 3 is a schematic view of the connection state of the lifting piece and the connecting piece in the second embodiment of the present application;

[0023] Figure 4 is a schematic view of the connection state of the connecting piece and the lifting piece in the second embodiment of the present application;

[0024] Figure 5 is a schematic view of the installation position of the magnetic piece in the third embodiment of the present application.

[0025] 1, gasifier body; 2, working box; 3, feeding cylinder; 4, feeding auger; 5, cloth auger; 50, rotating shaft; 51, auger blade; 6, telescopic cavity; 7, telescopic plate; 8, hydraulic mechanism; 9, reciprocating grate; 10, lifting cavity; 11, lifting piece; 12, elastic piece; 13, connecting piece; 14, lifting piece; 15, fixed piece; 16, magnetic piece. Embodiment

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Embodiment

[0027] Please refer to Figure 1 and Figure 2 A cloth device of a gasifier, comprising a gasifier body 1, a working box 2 fixedly installed on the lower side of the gasifier body 1, the inner cavity of the gasifier body 1 and the inner cavity of the working box 2 are communicated, the inner cavity of the gasifier body 1 is a circular cavity, the inner cavity of the working box 2 is a square cavity, a feeding cylinder 3 is fixedly installed on the left side of the gasifier body 1, the discharge port of the feeding cylinder 3 and the inner cavity of the gasifier body 1 are communicated, the feeding port of the feeding cylinder 3 and the external environment are communicated, a feeding auger 4 is rotatably installed in the feeding cylinder 3, one end of the feeding auger 4 away from the discharge port of the feeding cylinder 3 is fixedly connected with the output shaft of a first power mechanism (such as a motor), a cloth auger 5 is arranged in the inner cavity of the gasifier body 1, the cloth auger 5 is composed of a rotating shaft 50 and an auger blade 51, the rotating shaft 50 is arranged at the left side position of the inner cavity of the gasifier body 1, both ends of the rotating shaft 50 are rotatably connected with the wall of the gasifier body 1, one end of the rotating shaft 50 extends out of the gasifier body 1 and is fixedly connected with the output shaft of a second power mechanism (such as a motor), a through hole (not shown in the figure) is formed in the central position of the rotating shaft 50, one side of the through hole is communicated with a water conveying mechanism (such as a water pump), the other side of the through hole is communicated with a water collecting mechanism (such as a water storage bucket), the auger blades 51 are symmetrically welded on both sides of the midpoint of the rotating shaft 50, the rotating directions of the auger blades 51 on both sides are opposite, a telescopic cavity 6 is formed in the inner part of the working box 2, a telescopic plate 7 is sealingly and slidably installed in the inner cavity of the telescopic cavity 6 (the above connection relationship is similar to the connection relationship between the oil cylinder and the piston in the prior art), the telescopic plate 7 is located below the cloth auger 5, a hydraulic mechanism 8 (such as a combination of a suction pump and a liquid storage tank) is fixedly installed on the left side of the working box 2, the output end of the hydraulic mechanism 8 is communicated with the cavity located at the left side of the telescopic plate 7 in the telescopic cavity 6, a reciprocating grate 9 is installed on the bottom surface of the inner cavity of the working box 2, a slag discharge port is formed in the inner cavity of the working box 2 and located at the right side of the reciprocating grate 9.

[0028] In use, first, the hydraulic mechanism 8 inputs hydraulic oil into the telescopic cavity 6, so that the hydraulic oil pushes the telescopic plate 7 to extend, as shown Figure 1 , then, the biomass is input into the feed cylinder 3, at the same time, the first power mechanism drives the feed auger 4 to rotate, so that the feed auger 4 gradually conveys the biomass into the gasification furnace body 1, and forms a conical accumulation at the middle position of the surface of the telescopic plate 7, then, the second power mechanism drives the distributing auger 5 to rotate, so that the distributing auger 5 contacts the biomass, and then drives the biomass to move to the front and back sides of the telescopic plate 7, after the biomass is evenly distributed on the surface of the telescopic plate 7, the distributing auger 5 and the feed auger 4 stop running, and the hydraulic mechanism 8 drives the telescopic plate 7 to reset, the telescopic plate 7 drives the biomass on the surface to move synchronously, so that the biomass contacts the inner wall of the working box body 2, and then is pushed off the telescopic plate 7 and falls onto the surface of the reciprocating grate 9, through the above-mentioned action, the biomass is more evenly distributed on the reciprocating grate 9, thereby reducing the probability of affecting the gas production efficiency.

[0029] Please refer to Figure 1 , the left side of the telescopic plate 7 is inclined downward, so that the biomass moved to the front and back sides of the telescopic plate 7 by the distributing auger 5 is first moved to the side of the telescopic plate 7 close to the feed cylinder 3, then, as the biomass is continuously moved to the two sides of the telescopic plate 7, the biomass is evenly distributed on the surface of the telescopic plate 7, through the above-mentioned action, the biomass on the surface of the subsequent reciprocating grate 9 is further evenly distributed (because the inner cavity of the working box body 2 is a square cavity, and the inner cavity of the gasification furnace body 1 is a circular cavity, so that the cross sections of the two cavity connecting parts are different, through the above-mentioned action, the biomass is distributed on the surface of the telescopic plate 7 at a position not corresponding to the cross section of the cavity of the gasification furnace body 1).

[0030] Please refer to Figure 1 and Figure 2 , the right side position inside the telescopic plate 7 is provided with lifting cavities 10, the lifting cavities 10 are equidistantly distributed along the radial direction of the rotating shaft 50, the lifting cavities 10 are slidably installed with lifting pieces 11, the lower side position of the lifting piece 11 is provided with elastic pieces 12, the elastic pieces 12 are elastic metal sheets, the upper side of the lifting piece 11 is provided with connecting pieces 13, the upper side of the connecting piece 13 extends out of the lifting cavity 10, the upper side of the connecting piece 13 is provided with lifting and falling pieces 14, the upper side surface of the lifting and falling piece 14 is smoothly connected with the upper side surface of the telescopic plate 7, the upper side of the connecting piece 13 and the lower side surface of the lifting and falling piece 14 are welded and fixed, the lower side of the connecting piece 13 and the upper side surface of the lifting piece 11 are welded and fixed, the rotating shaft 50 is fixedly installed with a fixing piece 15 at a position between the auger blade 51 and the inner wall of the gasification furnace body 1, the length of the fixing piece 15 is greater than the minimum distance between the rotating shaft 50 and the upper side surface of the lifting and falling piece 14.

[0031] The biomass entering from the feeding cylinder 3 will fall on the surface of the landing piece 14, and then when the cloth auger 5 rotates, the rotating shaft 50 will drive the fixed piece 15 to rotate synchronously. When the fixed piece 15 approaches the landing piece 14, it will push the landing piece 14 to move downward, so that the lifting piece 11 moves downward synchronously, and the elastic piece 12 is deformed. Then, when the fixed piece 15 moves away from the landing piece 14, the elastic piece 12 resets, thereby driving the lifting piece 11 and the landing piece 14 to move upward and reset. Through the above action, the landing piece 14 will cause the biomass on the surface to vibrate, which will cause the biomass to move, thereby promoting the uniform distribution of the biomass on the landing piece 14. At the same time, due to the smooth connection between the upper side of the landing piece 14 and the upper side of the telescopic plate 7, the inclination directions of the landing piece 14 and the telescopic plate 7 are the same, and the landing piece 14 causes the biomass on the surface to vibrate, so that the biomass can effectively move to the side of the feeding cylinder 3 on the surface of the landing piece 14 (the biomass is subjected to its own gravity and vibration force). Through the above action, the subsequent biomass on the surface of the reciprocating grate 9 is further promoted to be uniformly distributed. Embodiment

[0032] Please refer to Figures 1-4 The embodiment is a further improvement of the first embodiment, and the improvement is that the right side of the telescopic plate 7 is provided with a lifting cavity 10, which is equally distributed along the axial direction of the rotating shaft 50. The lifting cavity 10 is slidably installed with a lifting piece 11 in the inner cavity of the lifting cavity 10. The lower side of the lifting piece 11 is provided with an elastic piece 12, which is a spring. The two ends of the spring are connected to the lower side of the lifting piece 11 and the bottom of the lifting cavity 10, respectively. The upper side of the lifting piece 11 is provided with a connecting piece 13, and the number of connecting pieces 13 is four. The upper side of the connecting piece 13 extends out of the lifting cavity 10. The upper side of the connecting piece 13 is provided with a landing piece 14, and the number of landing pieces 14 is two. The two landing pieces 14 are distributed along the axial direction of the rotating shaft 50, and the distance between the two landing pieces 14 is less than the minimum diameter of the biomass. The upper side of the landing piece 14 is smoothly connected to the upper side of the telescopic plate 7. The upper side of the connecting piece 13 and the lower side of the landing piece 14 form a hinged connection. The lower side of the connecting piece 13 at the front and rear sides of the telescopic plate 7 forms a sliding connection with the lifting piece 11. The fixed piece 15 is fixedly installed on the rotating shaft 50 between the auger blade 51 and the inner wall of the gasification furnace body 1. The length of the fixed piece 15 is greater than the minimum distance between the rotating shaft 50 and the upper side of the landing piece 14.

[0033] The biomass entering from the feeding cylinder 3 will fall on the surface of the lifter 14, and then when the cloth auger 5 rotates, the rotating shaft 50 will drive the fixed part 15 to rotate synchronously. When the fixed parts 15 on both sides approach the lifter 14, they will push the lifter 14 to move downward, so that the lifting part 11 compresses the elastic part 12. Since the upper side of the connecting part 13 and the lower side of the lifter 14 are hingedly fixed, the lower side of the connecting part 13 at the front and rear sides of the telescopic plate 7 is slidingly connected with the lifting part 11, so that the downward movement distance of the lifting part 11 corresponding to the fixed part 15 is greater than that of the lifting part 11 at the other position, causing the lifter 14 to tilt towards the side corresponding to the fixed part 15. Through the above action, the biomass not in contact with the cloth auger 5 can still move to the front and rear sides of the telescopic plate 7, thereby further promoting the uniform distribution of the biomass. Then, when the fixed part 15 moves away from the lifter 14, the elastic part 12 resets, thereby driving the lifting part 11 and the lifter 14 to move upward and reset. Through the above action, the lifter 14 will cause the biomass on its surface to vibrate. Embodiment

[0034] Please refer to Figure 1 , Figure 2 and Figure 5 , the embodiment is a further improvement of embodiment one or two, and the improvement is that the length of the fixed part 15 is less than the minimum distance between the rotating shaft 50 and the upper side of the lifter 14, the arc-shaped end of the fixed part 15 is a magnetic end, and the internal part of the lifter 14 is fixedly installed with a magnetic part 16, which is arranged in the same polarity repulsion with the arc-shaped end of the fixed part 15.

[0035] When the rotating shaft 50 drives the fixed part 15 to approach the lifter 14, the magnetic repulsion between the fixed part 15 and the magnetic part 16 drives the lifter 14 to move downward, and then when the fixed part 15 moves away from the lifter 14, the lifter 14 moves upward and resets. Through the above setting, the fixed part 15 does not need to be set too long, which reduces the probability of the fixed part 15 being restricted in rotation in the gasification furnace body 1.

Claims

1. A material distribution device for a gasifier, comprising: The gasification furnace body (1) is provided with a working box body (2) on the lower side, the inner cavity of the gasification furnace body (1) is communicated with the inner cavity of the working box body (2), the inner cavity of the gasification furnace body (1) is a circular cavity, the inner cavity of the working box body (2) is a square cavity, the left side of the gasification furnace body (1) is provided with a feeding cylinder (3), the feeding cylinder (3) is provided with a feeding auger (4), one end of the feeding auger (4) is fixedly connected with the output shaft of a first power mechanism, characterized in that the gasification furnace body (1) is provided with a material distributing auger (5) in the inner cavity, the material distributing auger (5) is composed of a rotating shaft (50) and an auger blade (51), the rotating shaft (50) is arranged at the left side of the inner cavity of the gasification furnace body (1), both ends of the rotating shaft (50) are rotatably connected with the wall of the gasification furnace body (1), one end of the rotating shaft (50) is fixedly connected with the output shaft of a second power mechanism, the auger blades (51) are fixed on both sides of the midpoint of the rotating shaft (50), the rotating directions of the auger blades (51) on both sides are opposite, the inside of the working box body (2) is provided with an expansion cavity (6), the expansion cavity (6) is sealingly movably provided with an expansion plate (7), the left side of the working box body (2) is provided with a hydraulic mechanism (8), the output end of the hydraulic mechanism (8) is communicated with the cavity of the inner cavity of the expansion cavity (6) and located at the left side of the expansion plate (7), and the bottom surface of the inner cavity of the working box body (2) is provided with a reciprocating grate (9); The right side of the inside of the expansion plate (7) is provided with a lifting cavity (10), the lifting cavity (10) is slidingly provided with a lifting piece (11) in the inner cavity, the lower side of the lifting piece (11) is provided with an elastic piece (12), the upper side of the lifting piece (11) is provided with a connecting piece (13), the upper side of the connecting piece (13) extends out of the lifting cavity (10), the upper side of the connecting piece (13) is provided with a take-off piece (14), the upper side of the take-off piece (14) is smoothly connected with the upper side of the expansion plate (7), the upper side of the connecting piece (13) is connected with the lower side of the take-off piece (14), the lower side of the connecting piece (13) is connected with the lifting piece (11), and the circumferential outer side of the rotating shaft (50) is fixedly provided with a fixing piece (15) between the auger blade (51) and the inner wall of the gasification furnace body (1). The lifting cavities (10) are equidistantly distributed along the axial direction of the rotating shaft (50), the elastic member (12) is a spring, two ends of the spring are connected with the lower side of the lifting member (11) and the bottom of the lifting cavity (10) respectively, the number of the connecting members (13) is four, the number of the landing members (14) is two, the two landing members (14) are distributed along the axial direction of the rotating shaft (50), the spacing between the two landing members (14) is smaller than the minimum diameter of the biomass, the upper side of the connecting member (13) is hingedly connected with the lower side of the landing member (14), the lower side of the connecting member (13) at the most front and rear positions of the telescopic plate (7) is movably clamped with the lifting member (11).

2. A material distribution device for a gasifier according to claim 1, wherein A through hole is formed in the central position inside the rotating shaft (50), one side of the through hole is communicated with the water conveying mechanism, and the other side of the through hole is communicated with the water collecting mechanism.

3. A material distribution device for a gasifier as claimed in claim 1, wherein The left side of the telescopic plate (7) is downwardly inclined.

4. A material distribution device for a gasifier according to claim 1, wherein The length of the fixing member (15) is greater than the minimum distance between the rotating shaft (50) and the upper side of the landing member (14).

5. A material distribution device for a gasifier as defined in claim 1, wherein The length of the fixing member (15) is smaller than the minimum distance between the rotating shaft (50) and the upper side of the landing member (14), the arc-shaped end of the fixing member (15) is a magnetic end, the magnetic member (16) is fixedly installed inside the landing member (14), and the magnetic member (16) and the arc-shaped end of the fixing member (15) repel each other.

Images