Biomass gasification movable hearth structure

By introducing a cleaning mechanism into the biomass gasification furnace bed, and using the cooperation of scrapers and collection barrels, the problem of intake pipe blockage is solved, and efficient tar cleaning and gasification efficiency is achieved.

CN120484854APending Publication Date: 2025-08-15GUANGZHOU HUIDI NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202510952538.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-10
Publication Date
2025-08-15

AI Technical Summary

Technical Problem

In the long-term use of traditional biomass gasification furnaces, a large amount of tar will be attached to the inner wall of the intake pipe, causing blockage and affecting the gasification efficiency.

Method used

A biomass gasification movable hearth structure is designed, including a cleaning mechanism, which is used in combination with a scraper and a collection barrel. The threaded rod is driven by a motor to drive the scraper to slide in the intake pipe, scrape out the tar and enter the collection barrel through the connecting pipe, realize quick cleaning.

Benefits of technology

It effectively avoids intake pipe blockage, improves gasification efficiency, and simplifies the tar cleaning process.

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Abstract

The invention relates to the related technical field of biomass gasification hearth structures, in particular to a biomass gasification movable hearth structure which comprises a gasification movable hearth main body, and a cleaning mechanism is arranged on the gasification movable hearth main body; the cleaning mechanism comprises a mounting hole, a limiting hole, a threaded rod, a limiting rod, a scraping plate, a threaded hole, a motor, a connecting pipe and a collecting barrel, the mounting hole is formed in the gasification movable hearth main body, and the limiting hole is formed in the gasification movable hearth main body. According to the biomass gasification movable hearth structure, through cooperative use of the scraper plate and the collecting barrel, when the gasification movable hearth main body is used for a long time, a large amount of tar is generated along with biomass gasification, the tar on the inner wall of the gas inlet pipe is scraped out through the scraper plate, and the scraped tar enters the collecting barrel through the connecting pipe; the rapid collecting barrel is installed on the outer wall of the air inlet pipe through the sliding groove and the fixing block, so that the rapid collecting barrel is easy, convenient and rapid to replace.
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Description

Technical Field

[0001] The present invention relates to the technical field related to biomass gasification hearth structures, and in particular to a biomass gasification movable hearth structure. Background Art

[0002] A biomass gasification hearth is a device that uses biomass as a feedstock and converts it into combustible gas through a gasification process. This hearth is typically made of high-temperature-resistant materials to withstand the high temperatures and chemical reactions generated during the gasification process. The design and construction of a biomass gasification hearth are intended to optimize gasification efficiency, reduce pollutant emissions, and provide stable energy output. Therefore, a biomass gasification hearth structure is particularly desirable for efficient gasification.

[0003] The gasifiers currently on the market have the following problems when in use:

[0004] When traditional gasifiers are used for a long time, a large amount of tar will be produced inside the air intake pipe as the biomass is gasified. This tar will adhere to the inner wall of the air intake pipe, easily causing the air intake pipe to be blocked, thereby affecting the gasification efficiency. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems in the above-mentioned technology at least to a certain extent.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a biomass gasification movable hearth structure, comprising a gasification movable hearth main body, on which a cleaning mechanism is provided;

[0007] The cleaning mechanism includes a mounting hole, a limiting hole, a threaded rod, a limiting rod, a scraper, a threaded hole, a motor, a connecting pipe and a collecting bucket. The gasification movable hearth body is provided with a mounting hole, the gasification movable hearth body is provided with a limiting hole, a threaded rod is provided inside the mounting hole, a limiting rod is provided inside the limiting hole, one end of the limiting rod is connected with a scraper, a threaded hole is provided on the scraper, one end of the gasification movable hearth body is installed with a motor, a connecting pipe is fixed to the outer wall of the gasification movable hearth body, and a collecting bucket is installed at one end of the connecting pipe.

[0008] Preferably, the gasification movable hearth body comprises a gasification furnace, an air inlet pipe and a discharge port. The air inlet pipe is installed on the outer wall of the gasification furnace, and the discharge port is provided on the bottom wall of the gasification furnace.

[0009] Preferably, the limiting holes are symmetrically opened with respect to the central axis of the bottom edge of the air intake pipe, and the limiting holes are respectively opened on the air intake pipe and the scraper.

[0010] Preferably, the inner wall size of the threaded hole matches the outer wall size of the threaded rod, and the mounting holes are respectively opened on the air intake pipe and the scraper.

[0011] Preferably, the cleaning mechanism is provided with a fixing mechanism, and the fixing mechanism includes a slide groove, a first connecting hole, a first spring, a connecting plate, a control ring, a limit block and a fixed block. The inner wall of the connecting tube is provided with a slide groove, the interior of the slide groove is provided with a first connecting hole, the interior of the first connecting hole is provided with a first spring, the interior of the slide groove is provided with a connecting plate, the outer wall of the connecting plate is provided with a control ring, the inner wall of the connecting plate is provided with a limit block, and the outer wall of the collecting barrel is provided with a fixed block.

[0012] Preferably, the inner wall size of the chute matches the outer wall size of the fixed block, and the inner wall size of the control ring matches the outer wall size of the collecting bucket.

[0013] Preferably, one end of the first spring is connected to a first connecting hole, and the other end of the first spring is connected to a connecting plate.

[0014] Preferably, an adjustment mechanism is provided on the main body of the gasification movable hearth, and the adjustment mechanism includes a slide rail, a control plate, a fixing hole, a second connecting hole, a second spring, a connecting rod, a bolt and a pull rod. The inner wall of the discharge port is fixed with a slide rail, a control plate is installed on the slide rail, a fixing hole is provided on the control plate, a second connecting hole is provided on the slide rail, a second spring is installed on the inner wall of the second connecting hole, a connecting rod is installed on the inner wall of the second spring, a bolt is fixed to one end of the connecting rod, and a pull rod is fixed to one end of the connecting rod.

[0015] Preferably, the slide rails are symmetrically arranged with respect to the central axis of the discharge port, and the fixing holes are symmetrically opened with respect to the central axis of the control plate.

[0016] Preferably, one end of the second spring is connected to the second connecting hole, and the other end of the second spring is connected to the latch.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: this biomass gasification movable hearth structure, through the coordinated use of a scraper and a collecting barrel, when the gasification movable hearth body is used for a long time, a large amount of tar is generated as the biomass is gasified, and the tar on the inner wall of the air inlet pipe is scraped out by the scraper, and the scraped tar enters the collecting barrel through the connecting pipe, and the quick collecting barrel is installed on the outer wall of the air inlet pipe through the slide groove and the fixing block, making it easy and quick to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance of the present invention;

[0019] Figure 2This is a schematic diagram of the cleaning mechanism structure of the present invention;

[0020] Figure 3 This is a structural diagram of the fixing mechanism of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the slide rail and the control panel used in conjunction with each other in the present invention;

[0022] Figure 5 For the present invention Figure 4 A in the middle is an enlarged structural diagram;

[0023] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B in the middle.

[0024] In the figure: 1. Gasification movable hearth body; 11. Gasification furnace; 12. Air inlet pipe; 13. Discharge port; 2. Cleaning mechanism; 21. Mounting hole; 22. Limiting hole; 23. Threaded rod; 24. Limiting rod; 25. Scraper; 26. Threaded hole; 27. Motor; 28. Connecting pipe; 29. Collecting bucket; 3. Fixing mechanism; 31. Slide; 32. First connecting hole; 33. First spring; 34. Connecting plate; 35. Control ring; 36. Limiting block; 37. Fixing block; 4. Adjusting mechanism; 41. Slide rail; 42. Control plate; 43. Fixing hole; 44. Second connecting hole; 45. Second spring; 46. Connecting rod; 47. Bolt; 48. Pull rod. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-6 The present invention provides a technical solution: a biomass gasification movable hearth structure, comprising a gasification movable hearth body 1, on which a cleaning mechanism 2 is provided;

[0027] The cleaning mechanism 2 includes a mounting hole 21, a limiting hole 22, a threaded rod 23, a limiting rod 24, a scraper 25, a threaded hole 26, a motor 27, a connecting pipe 28 and a collecting bucket 29. The gasification movable hearth body 1 is provided with a mounting hole 21, and a limiting hole 22 is provided on the gasification movable hearth body 1. A threaded rod 23 is provided inside the mounting hole 21, and a limiting rod 24 is provided inside the limiting hole 22. A scraper 25 is connected to one end of the limiting rod 24, and a threaded hole 26 is provided on the scraper 25. A motor 27 is installed at one end of the gasification movable hearth body 1, a connecting pipe 28 is fixed to the outer wall of the gasification movable hearth body 1, and a collecting bucket 29 is installed at one end of the connecting pipe 28. Through the arrangement of the mounting hole 21, the limiting hole 22, the threaded rod 23, the limiting rod 24, the scraper 25, the threaded hole 26, the motor 27, the connecting pipe 28 and the collecting bucket 29 When in use, the threaded rod 23 and the limiting rod 24 are respectively passed through the threaded holes 26 and the limiting holes 22 on the scraper 25, and then the threaded rod 23 and the limiting rod 24 are respectively fixed in the corresponding mounting holes 21, and one end of the threaded rod 23 is connected to the output end of the motor 27, and the collecting bucket 29 is installed on the outer wall of the air intake pipe 12 through the connecting pipe 28. When the gasification movable hearth body 1 is used for a long time, a large amount of tar is produced as the biomass is gasified, and this tar will block the air intake pipe 12. At this time, the motor 27 is started, and the motor 27 drives the threaded rod 23 to rotate, thereby driving the scraper 25, and the scraper 25 is restricted from rotating by the limiting rod 24, so that when the threaded rod 23 rotates, the scraper 25 can only slide back and forth in the air intake pipe 12, thereby scraping out the tar on the inner wall of the air intake pipe 12, and the scraped tar will enter the collecting bucket 29 through the connecting pipe 28.

[0028] Furthermore, the gasification movable hearth body 1 includes a gasifier 11, an air inlet pipe 12 and a discharge port 13. The outer wall of the gasifier 11 is installed with the air inlet pipe 12, and the bottom wall of the gasifier 11 is provided with the discharge port 13. Through the arrangement of the gasifier 11, the air inlet pipe 12 and the discharge port 13, when in use, biomass is placed in the gasifier 11, and fuel gas is introduced through the air inlet pipe 12 to gasify the biomass. The carbon slag generated after the gasification is completed is discharged through the discharge port 13.

[0029] Furthermore, the limiting holes 22 are opened symmetrically with the central axis of the bottom edge of the intake pipe 12. The limiting holes 22 are opened on the intake pipe 12 and the scraper 25 respectively. Through the setting of the scraper 25, when in use, the tar attached to the inner wall of the intake pipe 12 is scraped out by the scraper 25, thereby improving the intake efficiency of the intake pipe 12.

[0030] Furthermore, the inner wall size of the threaded hole 26 matches the outer wall size of the threaded rod 23, and the mounting holes 21 are respectively opened on the air intake pipe 12 and the scraper 25. Through the threaded rod 23, when in use, the motor 27 drives the threaded rod 23 to control the movement of the scraper 25 in the air intake pipe 12.

[0031] Furthermore, the cleaning mechanism 2 is provided with a fixing mechanism 3, which includes a slide groove 31, a first connecting hole 32, a first spring 33, a connecting plate 34, a control ring 35, a limit block 36 and a fixed block 37. The inner wall of the connecting tube 28 is provided with a slide groove 31, the interior of the slide groove 31 is provided with a first connecting hole 32, the interior of the first connecting hole 32 is provided with a first spring 33, the interior of the slide groove 31 is provided with a connecting plate 34, the outer wall of the connecting plate 34 is provided with a control ring 35, the inner wall of the connecting plate 34 is provided with a limit block 36, and the outer wall of the collecting barrel 29 is provided with a fixed block 37. Through the arrangement of the slide groove 31, the first connecting hole 32, the first spring 33, the connecting plate 34, the control ring 35, the limit block 36 and the fixed block 37, when in use, the first spring 33 is installed in the first The first spring 33 will bounce the limit block 36 into the chute 31, and the scraper 25 will scrape out the tar attached to the inner wall of the intake pipe 12 and enter the collection barrel 29 through the connecting pipe 28.

[0032] Furthermore, the inner wall size of the slide 31 matches the outer wall size of the fixed block 37, and the inner wall size of the control ring 35 matches the outer wall size of the collection bucket 29. Through the setting of the fixed block 37, when in use, the collection bucket 29 is fixed at the opening of the connecting pipe 28 by cooperating with the fixed block 37 and the slide 31.

[0033] Furthermore, one end of the first spring 33 is connected to the first connecting hole 32, and the other end of the first spring 33 is connected to the connecting plate 34. Through the setting of the first spring 33, when in use, the collection barrel 29 will be rotated, and the fixed block 37 on the outer wall of the collection barrel 29 will leave the surface of the limit block 36. At this time, the first spring 33 will bounce the limit block 36 into the slide groove 31.

[0034] Furthermore, an adjustment mechanism 4 is provided on the main body 1 of the gasification movable hearth, and the adjustment mechanism 4 includes a slide rail 41, a control panel 42, a fixing hole 43, a second connecting hole 44, a second spring 45, a connecting rod 46, a bolt 47 and a pull rod 48. The inner wall of the discharge port 13 is fixed with a slide rail 41, a control panel 42 is installed on the slide rail 41, a fixing hole 43 is provided on the control panel 42, a second connecting hole 44 is provided on the slide rail 41, a second spring 45 is installed on the inner wall of the second connecting hole 44, a connecting rod 46 is installed on the inner wall of the second spring 45, one end of the connecting rod 46 is fixed with a bolt 47, and one end of the connecting rod 46 is fixed. There is a pull rod 48, which is arranged through the slide rail 41, the control panel 42, the fixing hole 43, the second connecting hole 44, the second spring 45, the connecting rod 46, the bolt 47 and the pull rod 48. When in use, the second spring 45 is sleeved on the outer wall of the connecting rod 46, and the connecting rod 46 is installed in the second connecting hole 44. When the carbon slag produced after gasification is completed needs to be discharged through the discharge port 13, the pull rod 48 is pulled at this time, and the bolt 47 on the slide rail 41 is driven by the pull rod 48, and then the control panel 42 is pulled so that the opening on the control panel 42 is aligned with the opening of the discharge port 13. At this time, the carbon slag will be discharged through the discharge port 13.

[0035] Furthermore, the slide rail 41 is symmetrically arranged with respect to the central axis of the discharge port 13 , and the fixing hole 43 is symmetrically opened with respect to the central axis of the control plate 42 . Through the arrangement of the slide rail 41 , the sliding direction of the control plate 42 is controlled by the slide rail 41 during use.

[0036] Furthermore, one end of the second spring 45 is connected to the second connecting hole 44, and the other end of the second spring 45 is connected to the latch 47. Through the setting of the second spring 45, when in use, the second spring 45 will keep the latch 47 in an extended state.

[0037] Working principle: When in use, the threaded rod 23 and the limiting rod 24 are respectively passed through the threaded hole 26 and the limiting hole 22 on the scraper 25, and then the threaded rod 23 and the limiting rod 24 are respectively fixed in the corresponding mounting holes 21, and one end of the threaded rod 23 is connected to the output end of the motor 27, and the collecting barrel 29 is installed on the outer wall of the air inlet pipe 12 through the connecting pipe 28. When the gasification movable hearth body 1 is used for a long time, a large amount of tar is generated as the biomass is gasified. The tar will block the air inlet pipe 12. At this time, the motor 2 is started. 7. The motor 27 drives the threaded rod 23 to rotate, thereby driving the scraper 25. The scraper 25 is restricted in rotation by the limit rod 24, so that when the threaded rod 23 rotates, the scraper 25 can only slide back and forth in the intake pipe 12, thereby scraping off the tar on the inner wall of the intake pipe 12. The scraped tar will enter the collection barrel 29 through the connecting pipe 28. The first spring 33 is installed in the first connecting hole 32, and then the connecting plate 34 is installed at one end of the first spring 33. At the same time, the limit block 36 is installed in the slide groove 31, and the connecting plate 34 is The first spring 33 will then push the limit block 36 into the chute 31, and the scraper 25 will then be moved back into the chute 31. The tar attached to the inner wall of the intake pipe 12 is scraped off and enters the collecting barrel 29 through the connecting pipe 28. The second spring 45 is sleeved on the outer wall of the connecting rod 46, and the connecting rod 46 is installed in the second connecting hole 44. When the carbon slag produced after gasification is completed needs to be discharged through the discharge port 13, the pull rod 48 is pulled at this time, and the bolt 47 on the slide rail 41 is driven by the pull rod 48, and then the control panel 42 is pulled so that the opening on the control panel 42 is aligned with the opening of the discharge port 13. At this time, the carbon slag will be discharged through the discharge port 13.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A biomass gasification movable hearth structure, comprising a gasification movable hearth body (1), characterized in that: A cleaning mechanism (2) is provided on the gasification movable hearth body (1); The cleaning mechanism (2) comprises a mounting hole (21), a limiting hole (22), a threaded rod (23), a limiting rod (24), a scraper (25), a threaded hole (26), a motor (27), a connecting pipe (28) and a collecting bucket (29); the mounting hole (21) is provided on the gasification movable hearth body (1); the limiting hole (22) is provided on the gasification movable hearth body (1); a threaded rod (23) is provided inside the mounting hole (21); a limiting rod (24) is provided inside the limiting hole (22); one end of the limiting rod (24) is connected to the scraper (25); the scraper (25) is provided with a threaded hole (26); one end of the gasification movable hearth body (1) is installed with the motor (27); the outer wall of the gasification movable hearth body (1) is fixed with a connecting pipe (28); and one end of the connecting pipe (28) is installed with the collecting bucket (29).

2. The biomass gasification movable hearth structure according to claim 1, characterized in that: The gasification movable hearth body (1) comprises a gasification furnace (11), an air inlet pipe (12) and a discharge port (13); the air inlet pipe (12) is installed on the outer wall of the gasification furnace (11), and the discharge port (13) is provided on the bottom wall of the gasification furnace (11).

3. The biomass gasification movable hearth structure according to claim 1, characterized in that: The limiting holes (22) are symmetrically opened with respect to the central axis of the bottom edge of the air inlet pipe (12), and the limiting holes (22) are respectively opened on the air inlet pipe (12) and the scraper (25).

4. The biomass gasification movable hearth structure according to claim 1, characterized in that: The inner wall size of the threaded hole (26) matches the outer wall size of the threaded rod (23), and the mounting holes (21) are respectively opened on the air intake pipe (12) and the scraper (25).

5. The biomass gasification movable hearth structure according to claim 1, characterized in that: The cleaning mechanism (2) is provided with a fixing mechanism (3), the fixing mechanism (3) comprising a slide groove (31), a first connecting hole (32), a first spring (33), a connecting plate (34), a control ring (35), a limit block (36) and a fixing block (37), the inner wall of the connecting tube (28) is provided with a slide groove (31), the interior of the slide groove (31) is provided with a first connecting hole (32), the interior of the first connecting hole (32) is provided with a first spring (33), the interior of the slide groove (31) is provided with a connecting plate (34), the outer wall of the connecting plate (34) is provided with a control ring (35), the inner wall of the connecting plate (34) is provided with a limit block (36), and the outer wall of the collecting barrel (29) is provided with a fixing block (37).

6. The biomass gasification movable hearth structure according to claim 5, characterized in that: The inner wall size of the chute (31) matches the outer wall size of the fixed block (37), and the inner wall size of the control ring (35) matches the outer wall size of the collection bucket (29).

7. The biomass gasification movable hearth structure according to claim 5, characterized in that: One end of the first spring (33) is connected to the first connection hole (32), and the other end of the first spring (33) is connected to the connection plate (34).

8. The biomass gasification movable hearth structure according to claim 2, characterized in that: The gasification movable hearth body (1) is provided with an adjustment mechanism (4), and the adjustment mechanism (4) includes a slide rail (41), a control panel (42), a fixing hole (43), a second connecting hole (44), a second spring (45), a connecting rod (46), a latch (47) and a pull rod (48). The inner wall of the discharge port (13) is fixed with a slide rail (41), a control panel (42) is installed on the slide rail (41), a fixing hole (43) is provided on the control panel (42), a second connecting hole (44) is provided on the slide rail (41), a second spring (45) is installed on the inner wall of the second connecting hole (44), a connecting rod (46) is installed on the inner wall of the second spring (45), a latch (47) is fixed to one end of the connecting rod (46), and a pull rod (48) is fixed to one end of the connecting rod (46).

9. The biomass gasification movable hearth structure according to claim 8, characterized in that: The slide rails (41) are symmetrically arranged with respect to the central axis of the discharge port (13), and the fixing holes (43) are symmetrically opened with respect to the central axis of the control plate (42).

10. The biomass gasification movable hearth structure according to claim 8, characterized in that: One end of the second spring (45) is connected to the second connection hole (44), and the other end of the second spring (45) is connected to the latch (47).