Slag removal device for biomass burner

Abstract

The utility model belongs to the technical field of biomass treatment, and particularly relates to a deslagging device for a biomass burner, which comprises a burning device, and a partition plate is arranged in the burning device and used for dividing a burning chamber, an ash falling chamber and an air inlet chamber; a plurality of filter holes are uniformly distributed in the first partition plate; a scraping plate is tightly attached to the upper portion of the first partition plate in a sliding mode, an arc-shaped drainage groove is formed in the upper portion of the scraping plate, fixing bases are arranged on the two sides of the scraping plate in an extending mode, a disturbance shaft is rotatably arranged on the two fixing bases, and an annular disturbance piece is arranged on the disturbance shaft; racks are symmetrically arranged on the two sides of the inner wall of the combustion chamber, and gears meshed with the racks are arranged on the two sides of the disturbance shaft correspondingly; the outer side of the combustion device is provided with a telescopic mechanism which is in transmission connection with the scraper. By means of the structure, residues can be cleaned on line, gathered, disturbed again and fully combusted, and finally the residues are scraped out through the scraping plate, so that part of fuel residues which are not completely combusted can be prevented from being brought out, and the combustion efficiency of fuel can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of biomass processing, in particular to a slag removal device for a biomass combustion machine. Background Art

[0002] In the field of biomass processing technology, biomass burners are used to process biomass into pellets for efficient combustion. Biomass pellet burners typically use wood chips or straw pellets as fuel. A feeding mechanism delivers the fuel into the combustion chamber, where it is ignited by an ignition mechanism. This type of fuel typically leaves fuel residue in the combustion chamber after combustion. If not promptly removed, this residue can affect the quality and efficiency of the next combustion cycle.

[0003] At present, common biomass burners on the market mainly use scrapers to scrape off fuel residues. This structure, especially during the combustion process, will bring out some unburned fuel residues when the scraper structure is cleaned online, resulting in fuel waste; and if the scraper is used to clean the residue after the combustion is completed, the internal fuel accumulation and incomplete fuel combustion will lead to excessive residues and low combustion efficiency. Utility Model Content

[0004] In response to the technical problems existing in the background technology, the utility model provides a slag removal device for a biomass burner, which is used to clean the combustion residue in the combustion chamber online and improve the combustion efficiency.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A slag removal device for a biomass burner comprises a combustion device, wherein a first partition and a second partition are provided inside the combustion device to separate a combustion chamber, an ash falling chamber and an air inlet chamber; a plurality of filter holes are evenly distributed on the first partition; a scraper is slidingly provided on the upper part of the first partition, an arc-shaped drainage groove is provided on the upper part of the scraper, fixed seats are extended on both sides of the scraper, a disturbance shaft is rotatably provided on the two fixed seats, an annular disturbance member is provided on the disturbance shaft, and the disturbance member is provided in the drainage groove; racks are symmetrically provided on both sides of the inner wall of the combustion chamber, and gears meshing with the racks are respectively provided on both sides of the disturbance shaft; a telescopic mechanism connected to the scraper for transmission is provided on the outside of the combustion device.

[0007] Optionally, the disturbing member includes a rotating wheel and arc-shaped scraping teeth evenly distributed on the circumference of the rotating wheel.

[0008] Optionally, a mounting groove is provided on the inner wall of the combustion chamber, the rack is provided on the upper inner wall of the mounting groove, and the bottom end of the mounting groove is inclined.

[0009] Optionally, the first partition is provided with air inlet hole 1 and air inlet hole 2, the air inlet hole 1 connects the combustion chamber and the air inlet chamber, and the air inlet hole 2 connects the ash falling chamber and the air inlet chamber; the bottom end of the air inlet chamber is provided with a main air inlet.

[0010] Optionally, a baffle is provided at one end of the scraper, a slide groove is provided on the first partition, the baffle is slidably provided in the slide groove, and one end of the baffle extends into the air inlet chamber; a plurality of connecting rods are provided on one side of the baffle, and a plurality of sliding holes are provided on the side wall of the air inlet chamber, and the connecting rods are passed through the sliding holes to the outside of the combustion device.

[0011] Optionally, the slag removal device for the biomass burner also includes a hopper and a spiral feeding mechanism, the discharge port of the hopper is connected to the inlet of the spiral feeding mechanism, the spiral feeding mechanism includes a feeding barrel and a spiral blade rotatably arranged in the feeding barrel; a mounting barrel connected to the combustion chamber is provided on one side of the combustion device, and the feeding barrel is fixed on the inner wall of the mounting barrel.

[0012] Optionally, the screw feeding mechanism also includes a feeding motor, the output shaft of the feeding motor is rotatably arranged in a transmission box, a screw is rotatably arranged in the transmission box, one end of the screw is rotatably connected to the combustion device, and the screw and the output shaft are connected and transmitted by a belt; a screw nut slider is provided on the screw, and the screw nut slider is connected to the connecting rod.

[0013] Optionally, an ignition hole is provided on the first partition plate, the ignition hole connects the combustion chamber and the air inlet chamber, and an igniter is installed on the ignition hole.

[0014] Optionally, a slag discharge port and an ash discharge port are provided on the outside of the combustion device, the slag discharge port is connected to the combustion chamber, and the ash discharge port is connected to the ash falling chamber.

[0015] The utility model has the following advantages and beneficial effects:

[0016] In the present invention, a retractable mechanism on the outside of the combustion device controls the reciprocating motion of a scraper within the combustion chamber, thereby scraping and gathering residue. The scraped residue is simultaneously scraped away, and the accumulated residue is then rotated and disturbed by a rotating agitator, fully rotating and dispersing the unburned residue and disturbing the biomass. The two are thoroughly mixed and disturbed, increasing combustion efficiency. This structure allows for online residue cleaning, gathering the residue and disturbing it again for full combustion, and finally using the scraper to scrape the residue out of the combustion device. This prevents some unburned fuel residue from being carried out, while also increasing fuel combustion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the slag removal device for a biomass burner provided by the utility model;

[0018] Figure 2 A structural diagram of the combustion device and scraper components provided by the utility model;

[0019] Figure 3 A cross-sectional view of the combustion device provided by the utility model;

[0020] Figure 4 for Figure 3 Cross-sectional view along the AA direction;

[0021] Figure 5 for Figure 3 A partial enlarged view of point b in the middle;

[0022] Figure 6 for Figure 4 A partial enlarged view of point c in the middle;

[0023] Figure 7 This is one of the structural diagrams of the combustion device provided by the utility model;

[0024] Figure 8 This is the second structural diagram of the combustion device provided by the present utility model;

[0025] Figure 9 An isometric cross-sectional view of the combustion device provided by the present utility model;

[0026] Figure 10 A structural diagram of the scraper provided by the utility model;

[0027] Figure 11 for Figure 10 A local enlarged view of point a in the middle;

[0028] Figure 12 A structural diagram of the spoiler provided by the utility model;

[0029] Figure 13 for Figure 12 Front view of

[0030] Icons: 1-combustion device, 1a-combustion chamber, 1b-ash falling chamber, 1c-air inlet chamber, 11-first partition, 111-chute, 112-air inlet hole one, 113-air inlet hole two, 114-ignition hole, 115-mounting hole, 12-second partition, 13-mounting cylinder, 14-mounting groove, 15-slag discharge port, 16-ash discharge port, 17-main air inlet, 18-slide hole, 19-bearing seat, 2-scraper, 2a-drainage groove, 21-baffle, 22-connecting rod, 23-fixed seat, 24-shaft hole, 3-disturbance shaft, 31-gear, 32-rotor, 33-arc scraper, 4-rack, 5-hopper, 6-feeding cylinder, 7-feeding motor, 71-spiral blade, 72-belt, 8-screw, 81-screw nut slider, 9-frame, 91-transmission box. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0033] Example

[0034] like Figures 1 to 13As shown, a slag removal device for a biomass burner includes a combustion device 1. A first partition 11 and a second partition 12 are provided inside the combustion device 1. The first partition 11 and the second partition 12 are perpendicular to each other and form a T shape. The first partition 11 is vertically arranged, and the second partition 12 is horizontally arranged to separate the combustion chamber 1a, the ash falling chamber 1b and the air inlet chamber 1c. The ash falling chamber 1b is located at the bottom of the combustion chamber 1a, and the air inlet chamber 1c is located on one side of the combustion chamber 1a and the ash falling chamber 1b. A plurality of filter holes are evenly distributed on the first partition 11, and the ash generated during combustion in the combustion chamber 1a can fall into the ash falling chamber 1b for storage through the first partition 11. A scraper 2 is slidingly provided on the upper part of the first partition 11 for scraping slag from the bottom of the combustion chamber 1a. An arc-shaped drainage groove 2a is provided on the upper part of the scraper 2. Fixed seats 23 are extended on both sides of the scraper 2. A disturbance shaft 3 is rotatably provided on the two fixed seats 23. An annular disturbance member is provided on the disturbance shaft 3, and the disturbance member is provided in the drainage groove 2a; racks 4 are symmetrically provided on both sides of the inner wall of the combustion chamber 1a, and gears 31 meshing with the rack 4 are respectively provided on both sides of the disturbance shaft 3; a telescopic mechanism connected to the scraper 2 for transmission is provided on the outside of the combustion device 1.

[0035] Furthermore, a slag discharge port 15 and an ash discharge port 16 are provided on the outside of the combustion device 1 . The slag discharge port 15 is communicated with the combustion chamber 1 a , and the ash discharge port 16 is communicated with the ash falling chamber 1 b .

[0036] In the present invention, the scraper 2 is controlled by a telescopic mechanism to slide along the first partition 11 to scrape the residue. At the same time, the gear 31 and the rack 4 cooperate. When the scraper 2 reciprocates to scrape the residue, the disturbance member rotates forward and reverse, continuously dispersing and disturbing the scraped residue, so that the residue can be mixed and disturbed with the biomass fuel, fully rotating and dispersing the unburned residue, and disturbing the biomass. The two are fully mixed and disturbed, thereby increasing the combustion efficiency. This structure can clean the residue online, gather the residue and disturb it again, fully burn it, and finally use the scraper 2 to scrape the residue out of the combustion device 1, which can not only prevent some unburned fuel residue from being carried out, but also increase the combustion efficiency of the fuel.

[0037] Furthermore, the disturbing member includes a rotating wheel 32 and arc-shaped scraping teeth 33 evenly distributed on the circumference of the rotating wheel 32. A plurality of disturbing members are provided axially along the disturbing axis 3. The design of the arc-shaped scraping teeth 33 facilitates scraping and gathering the residue together, and also facilitates disturbing and dispersing the residue.

[0038] Specific principles: Figure 5As shown, when the scraper 2 moves to the right, the disturbance member (wheel 32, arc-shaped scraping teeth 33) rotates counterclockwise. During such movement, the scraper 2 continuously scrapes the residue to the right side, and the counterclockwise rotating disturbance member can rotate and throw the accumulated residue to the upper right side. When used in conjunction with the scraper 2, the scraping is more thoroughly achieved, and the efficiency of scraping is increased. At the same time, the rotating disturbance member can fully disturb the fuel in the combustion chamber 1a to ensure combustion efficiency; when the scraper 2 moves to the left, the disturbance member (wheel 32, arc-shaped scraping teeth 33) rotates clockwise. When the scraper 2 moves to the left, it does not scrape the residue, but the clockwise rotating disturbance member can rotate and throw the accumulated residue to the upper left side. The residue reaches the drainage groove 2a, is thrown upward, and mixed with the fuel, achieving more thorough disturbance and mixing to increase combustion efficiency. Therefore, during the reciprocating motion of the scraper 2, the scraper 2 can continuously scrape the aggregated and dispersed scraping residue, fully disperse the residue, and disturb the mixture with the fuel to increase the efficiency of combustion; when the combustion is completed, or during the combustion process, when enough residue has been generated to be scraped out, the scraper 2 continues to move toward the slag discharge port 15 to scrape the residue out of the combustion chamber 1a.

[0039] Furthermore, a mounting groove 14 is provided on the inner wall of the combustion chamber 1a, and the rack 4 is provided on the upper inner wall of the mounting groove 14. The bottom end of the mounting groove 14 is tilted, thereby realizing the installation of the rack 4. At the same time, the tilted bottom end of the mounting groove 14 can avoid residue accumulation.

[0040] Furthermore, the first partition 11 is provided with an air inlet hole 112 and an air inlet hole 2 113. The air inlet hole 112 connects the combustion chamber 1a and the air inlet chamber 1c, and the air inlet hole 2 113 connects the ash falling chamber 1b and the air inlet chamber 1c. The bottom end of the air inlet chamber 1c is provided with an air inlet main 17. In actual operation, a fan is provided in the air inlet chamber 1c, and the air inlet pipe of the fan can be led out from the air inlet main duct. In this way, air can be introduced into the air inlet chamber 1c and directly reach the combustion chamber 1a from the air inlet hole 112 to assist combustion, or first reach the ash falling chamber 1b through the air inlet hole 2 113, and then enter the combustion chamber 1a from the bottom upward through the second partition 12 to achieve combustion. In this way, air is introduced from the side and bottom at the same time, which can increase the combustion efficiency and combustion efficiency, while reducing the ash blocking phenomenon of the second partition 12.

[0041] Furthermore, a baffle 21 is provided at one end of the scraper 2. A slide groove 111 is provided on the first partition. The baffle 21 slides in the slide groove 111, and one end of the baffle 21 extends into the air inlet chamber 1c. A plurality of connecting rods 22 are provided on one side of the baffle 21. A plurality of sliding holes 18 are provided on the side wall of the air inlet chamber 1c. The connecting rods 22 pass through the sliding holes 18 to the outside of the combustion device 1, and the connecting rods 22 are connected to the telescopic mechanism. The baffle 21 is provided on one side of the scraper 2. When the disturbance member rotates, residue is swept to the upper portion of the baffle 21 and located above the baffle 21 together with the fuel. When the baffle 21 retracts into the air inlet chamber 1c, the fuel and residue on the baffle 21 fall onto the second partition 12. This structure can also increase the disturbance of the fuel and residue during combustion, achieve disturbance when cleaning the residue, and improve combustion efficiency.

[0042] like Figure 1 As shown, in the present invention, the slag removal device for a biomass burner further includes a hopper 5 and a spiral feed mechanism. The discharge port of the hopper 5 is connected to the inlet of the spiral feed mechanism. The spiral feed mechanism includes a feed barrel 6 and a spiral blade 71 that rotates within the feed barrel 6. A mounting barrel 13 communicating with the combustion chamber 1a is provided on one side of the combustion device 1. The mounting barrel 13 is disposed above the air inlet chamber 1c, and the feed barrel 6 is fixed to the inner wall of the mounting barrel 13. The spiral blade 71 continuously feeds the fuel in the hopper 5 into the combustion chamber 1a for combustion.

[0043] Furthermore, the spiral feeding mechanism also includes a feeding motor 7. The combustion device 1 and the spiral feeding mechanism are fixed on the frame 9 as a whole. The frame 9 is provided with a transmission box 91. The feeding motor 7 is fixed on the outer wall of the transmission box 91. A bearing seat 19 is provided on one side of the combustion device 1. The output shaft of the feeding motor 7 is rotatably arranged in the transmission box 91. A screw rod 8 is rotatably arranged in the transmission box 91. One end of the screw rod 8 is rotatably connected to the bearing seat 19 on the outside of the combustion device 1. The screw rod 8 and the output shaft are connected and driven by a belt 72 and a pulley; a screw rod nut slider 81 is provided on the screw rod 8, and the screw rod nut slider 81 is connected to the connecting rod 22. In this way, when the feeding motor 7 starts to drive the spiral blade 71 to feed, it synchronously drives the screw rod 8 to move, thereby realizing the feeding and scraping operation at the same time. When the screw rod 8 nut slider needs to move back and forth, the discharge port of the hopper 5 is closed and the material is stopped, to avoid the feeding barrel 6 being blocked as the material increases when the spiral blade 71 rotates forward and backward.

[0044] Furthermore, an ignition hole 114 is provided on the first partition plate, which connects the combustion chamber 1a and the air inlet chamber 1c. An igniter is installed on the ignition hole 114. An installation hole 115 is provided on the outside of the combustion device 1. The installation hole 115 connects to the air inlet chamber 1c and is opposite to the ignition hole 114 for installing the igniter.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A slag removal device for a biomass burner, characterized in that : The combustion device comprises a first partition plate and a second partition plate provided inside the combustion device for separating a combustion chamber, an ash falling chamber and an air inlet chamber; a plurality of filter holes are uniformly distributed on the first partition plate; A scraper is slidably provided on the upper portion of the first baffle, an arc-shaped drainage groove is provided on the upper portion of the scraper, fixed seats are extended on both sides of the scraper, a disturbance shaft is rotatably provided on the two fixed seats, an annular disturbance member is provided on the disturbance shaft, and the disturbance member is provided in the drainage groove; Racks are symmetrically arranged on both sides of the inner wall of the combustion chamber, and gears meshing with the racks are respectively arranged on both sides of the disturbance shaft; a telescopic mechanism connected to the scraper for transmission is arranged on the outside of the combustion device.

2. The slag removal device for a biomass burner according to claim 1, characterized in that: The disturbing member includes a rotating wheel and arc-shaped scraping teeth evenly distributed on the circumference of the rotating wheel.

3. The slag removal device for a biomass burner according to claim 1, characterized in that: The inner wall of the combustion chamber is provided with a mounting groove, the rack is arranged on the inner wall of the upper end of the mounting groove, and the bottom end of the mounting groove is arranged obliquely.

4. The slag removal device for a biomass burner according to claim 1, characterized in that: The first partition is provided with an air inlet hole 1 and an air inlet hole 2, the air inlet hole 1 is connected to the combustion chamber and the air inlet chamber, and the air inlet hole 2 is connected to the ash falling chamber and the air inlet chamber; the bottom end of the air inlet chamber is provided with an air inlet main port.

5. The slag removal device for a biomass burner according to claim 1, characterized in that: A baffle is provided at one end of the scraper, a slide groove is provided on the first partition, the baffle is slidably provided in the slide groove, and one end of the baffle extends into the air inlet chamber; a plurality of connecting rods are provided on one side of the baffle, and a plurality of sliding holes are provided on the side wall of the air inlet chamber, and the connecting rods are passed through the sliding holes to the outside of the combustion device.

6. The slag removal device for a biomass burner according to claim 5, characterized in that: It also includes a hopper and a spiral feeding mechanism, the discharge port of the hopper is connected to the inlet of the spiral feeding mechanism, and the spiral feeding mechanism includes a feeding barrel and a spiral blade rotatably arranged in the feeding barrel; a mounting barrel connected to the combustion chamber is provided on one side of the combustion device, and the feeding barrel is fixed on the inner wall of the mounting barrel.

7. The slag removal device for a biomass burner according to claim 6, characterized in that: The screw feeding mechanism also includes a feeding motor, the output shaft of the feeding motor is rotatably arranged in a transmission box, a screw rod is rotatably arranged in the transmission box, one end of the screw rod is rotatably connected to the combustion device, and the screw rod and the output shaft are connected and transmitted by a belt; a screw rod nut slider is provided on the screw rod, and the screw rod nut slider is connected to the connecting rod.

8. The slag removal device for a biomass burner according to claim 1, characterized in that: An ignition hole is provided on the first partition plate, the ignition hole is connected to the combustion chamber and the air inlet chamber, and an igniter is installed on the ignition hole.

9. The slag removal device for a biomass burner according to claim 1, characterized in that: A slag discharge port and an ash discharge port are provided on the outside of the combustion device. The slag discharge port is communicated with the combustion chamber, and the ash discharge port is communicated with the ash falling chamber.

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