Energy-saving combustion stepped furnace capable of uniformly mixing biomass

Abstract

The energy-saving combustion stepped furnace comprises a stepped furnace body and a feeding opening formed in one side of the stepped furnace body, the feeding opening is provided with a feeding assembly, the feeding assembly comprises a feeding frame used for conveying coal, an extrusion assembly is arranged above the feeding frame, and the extrusion assembly is arranged above the feeding frame; a grating plate and turning plates are arranged in the middle and at the two ends of the output end of the feeding frame correspondingly, guide assemblies are arranged on the turning plates correspondingly, each guide assembly comprises a guide plate slidably arranged on the grating plate, a lifting assembly and a locking assembly are arranged on the guide assemblies on the two sides correspondingly, and the extrusion assembly is used for extruding bamboo scraps into balls; the guide assembly drives the guide plate to guide coal when the turning plates on the two sides are turned over, the lifting assembly is used for driving the grating plate to ascend and descend, and the locking assembly is used for locking the grating plate, so that fuel evenly flows on the steps, and the combustion effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of stepped furnaces, and more particularly to an energy-saving combustion stepped furnace with uniformly mixed biomass. Background Art

[0002] The stepped furnace is a commonly used combustion equipment with good temperature control and emission control features. Its core design is to use stepped grates to gradually move the waste during the combustion process, achieving efficient and stable combustion.

[0003] A Chinese invention patent with application announcement number CN115046211A discloses an intelligent alternative fuel incinerator, including a furnace body, a hearth and a decomposition furnace. The hearth is formed with multiple stepped grates arranged in sequence, which avoids the leakage phenomenon caused by the poor sealing of conventional incinerators, solves the risk of leakage of alternative fuels, especially leakage of hazardous waste fuels, and improves the utilization efficiency of alternative fuels.

[0004] However, the inventors have found that in actual application, when the fuel is transported into the stepped furnace, it cannot be evenly scattered on the steps, and usually there is more in the middle and less on the sides, resulting in poor combustion effect. Summary of the Invention

[0005] The purpose of the present invention is to address the shortcomings of the existing technology and provide an energy-saving combustion stepped furnace with uniform biomass mixing. The bamboo chips are squeezed into balls by an extrusion component to be better mixed with coal. The fuel is blocked by a grid plate and then flows to both sides of the upper material frame. The fuel pushes the flap to flip through the guide component and drives the guide plate to slide at the same time, so that both sides are evenly filled with fuel. At the same time, the grid plate is unlocked by the locking component, and the grid plate is driven to rise by the lifting component, so that the fuel flows evenly on the steps, thereby improving the combustion effect.

[0006] The technical solutions of the present invention are as follows:

[0007] A biomass-mixing energy-saving combustion stepped furnace comprises a stepped furnace and a loading port opened on one side of the stepped furnace, wherein a loading assembly is provided on the loading port, and the loading assembly comprises a loading frame for transmitting coal, and an extrusion assembly is provided above the loading frame, and a grid plate and a flap are respectively provided at the middle and both ends of the output end of the loading frame, and a guide assembly is provided on each of the flaps, and the guide assembly comprises a guide plate slidably arranged on the grid plate, and a lifting assembly and a locking assembly are respectively provided on the guide assemblies on both sides, the extrusion assembly is used to squeeze bamboo chips into balls, and the guide assembly drives the guide plate to guide the coal when the flaps on both sides are flipped, the lifting assembly is used to drive the grid plate to rise and fall, and the locking assembly is used to lock the grid plate.

[0008] As a preference, the feeding assembly further comprises an auger fixedly arranged on the feeding frame.

[0009] As a preference, the extrusion assembly includes an opening on the loading frame, a fixing frame fixedly arranged on the loading frame, extrusion rollers rotatably arranged on both sides of the fixing frame, a material box fixedly arranged above the extrusion rollers, and active teeth and passive teeth fixedly arranged on the extrusion rollers, wherein the active teeth and passive teeth are meshed with each other.

[0010] As a preference, a single group of the guide components also includes a slide groove provided on the feeding frame, a limiting groove provided on both sides of the slide groove, a rotating shaft rotatably arranged on the feeding frame, a disc fixedly provided on the rotating shaft, a fixed plate fixedly provided on the feeding frame, a sliding rod slidably arranged on the fixed plate, a connecting rod hingedly provided between the disc and the sliding rod, and a sliding column slidably arranged on the sliding rod, the rotating shaft is fixedly connected to the flap, the sliding column is fixedly connected to the guide plate, the grille plate cooperates with the slide groove, and the guide plate cooperates with the limiting groove.

[0011] As a preferred embodiment, the lifting assembly includes a first rack fixedly arranged on a sliding rod on one side, a first gear rotatably arranged on a loading frame, a first connecting shaft fixedly arranged on the first gear, a first bevel gear fixedly arranged on the first connecting shaft, a second connecting shaft rotatably arranged on the loading frame, second bevel gears and a second gear fixedly arranged on both sides of the second connecting shaft, a connecting column fixedly arranged on a grille plate, a lifting column slidingly arranged on the connecting column, a spring fixedly arranged between the connecting column and the lifting column, a fixing sleeve fixedly arranged on the lifting column, a telescopic rod fixedly arranged on the loading frame, and a second rack fixedly arranged on the telescopic rod, the first bevel gear is meshed with the second bevel gear, the first rack is meshed with the first gear, the second gear is meshed with the second rack, and the telescopic rod is fixedly connected to the fixing sleeve.

[0012] As a preferred embodiment, the locking assembly includes a locking groove provided on the grille plate, a first hydraulic groove provided on the inner wall of the loading frame, a second hydraulic groove provided on the first hydraulic groove, a cylinder fixedly provided on the loading frame, a piston slidably provided in the cylinder, a piston rod fixedly provided on the piston, a pin slidably provided in the first hydraulic groove, and a hydraulic pipe fixedly connected between the cylinder and the second hydraulic groove, the piston rod is fixedly connected to the sliding rod on the other side, and the pin cooperates with the locking groove.

[0013] As a preference, the latch and the piston are both made of rubber material.

[0014] As a preference, a torsion spring is provided between the flap and the loading frame.

[0015] The beneficial effects of the present invention are

[0016] 1. The present invention is provided with a grid plate, a flap and a guide assembly. After the coal and bamboo chips are blocked by the grid plate, they flow to both sides of the upper material frame and then the flap drives the guide plate to guide the coal and bamboo chips, ensuring that the coal and bamboo chips fall evenly on the steps, thereby improving the combustion effect.

[0017] 2. The present invention is also provided with a lifting assembly and a locking assembly, which drives the grille plate to be unlocked and lifted while the flap rotates, so that the coal and bamboo chips are evenly transferred from the loading frame to the steps. The lifting and lowering of the grille plate and the movement of the guide plate can be automatically adjusted according to the amount of coal and bamboo chips on both sides, thereby achieving an automatic adjustment effect.

[0018] In summary, the present invention has the advantages of good combustion effect and high efficiency, and is suitable for the field of stepped furnace technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of an energy-saving step furnace with uniform biomass mixing;

[0021] Figure 2 Schematic diagram of the structure of the feeding port;

[0022] Figure 3 is a structural diagram of the extrusion component;

[0023] Figure 4 A schematic diagram of the structure of the guide component;

[0024] Figure 5 It is a structural diagram of the limit slot;

[0025] Figure 6 It is a schematic diagram of the structure of the lifting assembly and the locking assembly;

[0026] Figure 7 This is a schematic diagram of the state when the squeezing roller squeezes the bamboo chips into balls;

[0027] Figure 8 Schematic diagram of the state when the fuel pushes open one side of the flap to drive the guide plate and lifting column to work;

[0028] Figure 9 for Figure 8 Enlarged view of point A in the middle;

[0029] Figure 10 for Figure 8 Enlarged view of point B in the middle;

[0030] Figure 11 Schematic diagram of the state when the grille plate is unlocked by pushing the other side flap for fuel;

[0031] Figure 12 for Figure 11 Enlarged view of point C in the middle;

[0032] Figure 13 for Figure 11 Enlarged view of point D in the middle;

[0033] Figure numerals: 1 stepped furnace, 2 loading port, 3 loading assembly, 31 loading frame, 32 auger, 4 extrusion assembly, 41 opening, 42 fixed frame, 43 extrusion roller, 44 material box, 45 driving gear, 46 passive gear, 5 grid plate, 6 flip plate, 7 guide assembly, 71 guide plate, 72 slide groove, 73 limit groove, 74 rotating shaft, 75 disc, 77 fixed plate, 78 slide rod, 79 connecting rod, 710 sliding column, 8 lifting assembly, 81 first rack, 82 first gear, 83 first connecting shaft, 84 first bevel gear, 85 second connecting shaft, 86 second bevel gear, 87 second gear, 88 connecting column, 89 lifting column, 810 spring, 811 fixed sleeve, 812 telescopic rod, 813 second rack, 9 locking assembly, 91 locking groove, 92 first hydraulic groove, 93 second hydraulic groove, 94 cylinder, 95 piston, 96 piston rod, 97 pin, 98 hydraulic pipe. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings.

[0035] Example 1

[0036] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0037] like Figures 1 to 13 As shown, an energy-saving combustion stepped furnace with uniform biomass mixing comprises a stepped furnace 1 and a loading port 2 opened on one side of the stepped furnace 1, a loading component 3 is provided on the loading port 2, the loading component 3 comprises a loading frame 31 for transmitting coal, an extrusion component 4 is provided above the loading frame 31, a grid plate 5 and a flap 6 are provided in the middle and two sections of the output end of the loading frame 31, a guide component 7 is provided on each flap 6, the guide component 7 comprises a guide plate 71 slidably arranged on the grid plate 5, a lifting component 8 and a locking component 9 are provided on the guide components 7 on both sides, the extrusion component 4 is used to squeeze bamboo chips into balls, and the guide component 7 drives the guide plate 71 to guide the coal when it flips through the flaps 6 on both sides, the lifting component 8 is used to drive the grid plate 5 to rise and fall, and the locking component 9 is used to lock the grid plate 5.

[0038] In addition, if Figure 1As shown, the feeding assembly 3 further includes an auger 32 fixedly arranged on the feeding frame 31 , and the coal is transported through the auger 32 .

[0039] It is worth mentioning that Figure 3 and Figure 7 As shown, the extrusion assembly 4 includes an opening 41 opened on the feeding frame 31, a fixing frame 42 fixedly arranged on the feeding frame 31, extrusion rollers 43 rotatably arranged on both sides of the fixing frame 42, a material box 44 fixedly arranged above the extrusion roller 43, and a driving tooth 45 and a passive tooth 46 fixedly arranged on the extrusion roller 43. The driving tooth 45 and the passive tooth 46 are engaged with each other, wherein a driving device is fixedly connected to the driving tooth 45 to drive the driving tooth 45 to rotate. During use, when the coal is transmitted, the driving device drives the driving tooth 45, the passive tooth 46 and the two extrusion rollers 43 to rotate relative to each other, squeezing the bamboo chips in the material box 44 into balls, which fall on the coal, so that the biomass is evenly mixed and the combustion effect is improved.

[0040] In addition, if Figures 6 to 9 As shown, the single-group guide assembly 7 also includes a slide groove 72 provided on the feeding frame 31, a limiting groove 73 provided on both sides of the slide groove 72, a rotating shaft 74 rotatably set on the feeding frame 31, a disc 75 fixedly set on the rotating shaft 74, a fixed plate 77 fixedly set on the feeding frame 31, a slide rod 78 slidably set on the fixed plate 77, a connecting rod 79 hingedly set between the disc 75 and the slide rod 78, and a sliding column 710 slidably set on the slide rod 78. The rotating shaft 74 is fixedly connected to the flap 6, the sliding column 710 is fixedly connected to the guide plate 71, the grille plate 5 cooperates with the slide groove 72, and the guide plate 71 cooperates with the limiting groove 73. When in use, coal and bamboo chips are preferentially transmitted to the upper In the middle of the material frame 31, that is, the grid plate 5, the coal and bamboo chips flow out from the gaps on the grid plate 5 while blocking the coal and bamboo chips. Then the coal and bamboo chips will flow to both sides of the upper material frame 31. When the coal and bamboo chips on both sides are filled, the flap 6 will be pushed to flip outward. Among them, when the coal and bamboo chips on one side are filled first, thereby driving the flap 6 to rotate, the disc 75 is driven to rotate, driving the connecting rod 79, the sliding rod 78 and the guide plate 71 to slide, so that the guide plate 71 slides toward that side, increasing the blocking surface of that side for the coal and bamboo chips, so that more coal and bamboo chips flow to the other side of the upper material frame 31. When the coal and bamboo chips on the other side are filled, the above action is repeated. At this time, the flaps 6 on both sides are in a state of being opened at the same time.

[0041] It should be emphasized that if Figure 8 and Figure 9As shown, the lifting assembly 8 includes a first rack 81 fixedly provided on one side slide bar 78, a first gear 82 rotatably provided on the loading frame 31, a first connecting shaft 83 fixedly provided on the first gear 82, a first bevel gear 84 fixedly provided on the first connecting shaft 83, a second connecting shaft 85 rotatably provided on the loading frame 31, second bevel gears 86 and a second gear 87 fixedly provided on both sides of the second connecting shaft 85, a connecting column 88 fixedly provided on the grid plate 5, a lifting column 89 slidably provided on the connecting column 88, a fixed The spring 810 is placed between the connecting column 88 and the lifting column 89, the fixing sleeve 811 is fixedly arranged on the lifting column 89, the telescopic rod 812 is fixedly arranged on the loading frame 31, and the second rack 813 is fixedly arranged on the telescopic rod 812. The first bevel gear 84 is meshed with the second bevel gear 86, the first rack 81 is meshed with the first gear 82, the second gear 87 is meshed with the second rack 813, and the telescopic rod 812 is fixedly connected to the fixing sleeve 811. The spring 810 is provided with a telescopic column to guide it, and the fixing sleeve 811 is provided. Connected to the movable part of the telescopic rod 812, when in use, when the side flap 6 is rotated to open first, the slide bar 78 drives the first rack 81 to slide, driving the first gear 82, the first bevel gear 84, the second bevel gear 86 and the second gear 87 to rotate, and the second gear 87 drives the second rack 813 to slide, thereby driving the fixing sleeve 811 and the lifting column 89 to rise. At this time, the spring 810 is stretched. Among them, when this side is filled first, the lifting column 89 rises first, and the grille plate 5 is locked under the action of the locking assembly 9, so the grille plate 5 It will not rise accordingly. Then, when the other side is filled again, the locking assembly 9 cancels the lock on the grid plate 5, and the grid plate 5 rises under the action of the spring 810. At this time, the flap 6 and the grid plate 5 both cancel the obstruction to the coal and bamboo chips, so that the coal and bamboo chips fall evenly on the steps; when the coal and bamboo chips on both sides of the feeding frame 31 are not filled and the flip 6 is reset, the grid plate 5 is driven to descend and the guide plate 71 is reset. It can be automatically adjusted according to the amount of coal and bamboo chips until the amount of coal and bamboo chips in the middle and on both sides of the feeding frame 31 is consistent.

[0042] It should be further explained that if Figures 11 to 13As shown, the locking assembly 9 includes a locking groove 91 provided on the grid plate 5, a first hydraulic groove 92 provided on the inner wall of the loading frame 31, a second hydraulic groove 93 provided on the first hydraulic groove 92, a cylinder 94 fixedly provided on the loading frame 31, a piston 95 slidably provided in the cylinder 94, a piston rod 96 fixedly provided on the piston 95, a latch 97 slidably provided in the first hydraulic groove 92, a hydraulic pipe 98 fixedly connected between the cylinder 94 and the second hydraulic groove 93, the piston rod 96 is fixedly connected to the other side slide bar 78, the latch 97 cooperates with the locking groove 91, wherein a latch 97 is provided between the latch 97 and the first hydraulic groove 92 There is a telescopic column and a spring is provided on the telescopic column. The grille plate 5 is limited by the latch 97. During use, when the side flap 6 is rotated open first, the slide rod 78 drives the piston rod 96 to slide, driving the piston 95 to withdraw the hydraulic oil. At this time, the latch 97 slides out of the locking groove 91 under the action of the spring, thereby unlocking the grille plate 5. When the side is filled first, the latch 97 is unlocked from the grille plate 5. Then, when the other side is filled, the lifting column 89 rises and can drive the grille plate 5 to rise at the same time. At this time, the flap 6 and the grille plate 5 both cancel the obstruction to the coal and bamboo chips, so that the coal and bamboo chips fall evenly on the steps.

[0043] It is worth mentioning that Figure 12 and Figure 13 As shown, the latch 97 and the piston 95 are both made of rubber. When in use, after the grille plate 5 rises, when the flap 6 on one side of the locking assembly 9 flips and resets first, it will drive the latch 97 to slide, thereby extending out from the first hydraulic groove 92. At this time, when the other side flips and resets, it drives the grille plate 5 to descend. During the descent, the locking groove 91 on the grille plate 5 will squeeze the latch 97, and the latch 97 will drive the hydraulic oil to squeeze the piston. Therefore, the latch 97 and the piston 95 are made of rubber. When the flap 6 remains stationary under the action of the torsion spring, the latch 97 and the piston 95 are deformed, so that the grille plate 5 can be smoothly lowered and locked.

[0044] Further, such as Figure 8 As shown, a torsion spring is provided between the flap 6 and the loading frame 31. When the fuel on both sides is insufficient, the flap 6 is reset under the action of the torsion spring, driving the grid plate 5 to descend and block the fuel again.

[0045] Working process

[0046] When the coal is being transported, the driving device drives the active gear 45, the passive gear 46 and the two squeezing rollers 43 to rotate relative to each other, squeezing the bamboo chips in the material box 44 into balls, which fall on the coal to make the biomass mixed evenly. The coal and bamboo chips are preferentially transported to the middle of the feeding frame 31 under the action of the auger 32. The coal and bamboo chips flow out from the gaps on the grid plate 5 while blocking the coal and bamboo chips. Then the coal and bamboo chips flow to both sides of the upper feeding frame 31. When the coal and bamboo chips on one side are filled first, the flap 6 is driven to rotate, which drives the disc 75 to rotate, driving the connecting rod 79 and the slide The rod 78 and the guide plate 71 slide, causing the guide plate 71 to slide toward the side, increasing the blocking surface of the side for the coal and bamboo chips, so that more coal and bamboo chips flow to the other side of the upper material frame 31. When the side flap 6 is rotated and opened first, the slide rod 78 drives the first rack 81 to slide, driving the first gear 82, the first bevel gear 84, the second bevel gear 86 and the second gear 87 to rotate. The second gear 87 drives the second rack 813 to slide, thereby driving the fixed sleeve 811 and the lifting column 89 to rise. At this time, the spring 810 is stretched. When the side is filled first, the lifting column 89 First, it rises, and the grid plate 5 is locked under the action of the locking assembly 9, so the grid plate 5 will not rise accordingly. Then, when the other side is filled again, the locking assembly 9 cancels the lock on the grid plate 5, and the grid plate 5 rises under the action of the spring 810. At this time, the flap 6 and the grid plate 5 both cancel the obstruction of the coal and bamboo chips, so that the coal and bamboo chips fall evenly on the steps; when the coal and bamboo chips on both sides of the feeding frame 31 are not filled and the flip 6 is reset, the grid plate 5 is driven to fall, and the guide plate 71 is reset, which can be automatically adjusted according to the amount of coal and bamboo chips until the feeding frame 31 is filled. 1 The amount of coal and bamboo chips in the middle and on both sides is the same; when the flap 6 on the other side is rotated and opened first, the slide rod 78 drives the piston rod 96 to slide, driving the piston 95 to withdraw the hydraulic oil. At this time, the latch 97 slides out of the locking groove 91 under the action of the spring, thereby unlocking the grille plate 5. Among them, when this side is filled first, the latch 97 and the grille plate 5 are unlocked. Then, when the other side is filled, the lifting column 89 rises and drives the grille plate 5 to rise at the same time. At this time, the flap 6 and the grille plate 5 both cancel the obstruction to the coal and bamboo chips, so that the coal and bamboo chips fall evenly on the steps.

[0047] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the invention.

[0048] Of course, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0049] The above description in conjunction with the accompanying drawings is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiment. It should be pointed out that for those skilled in the art, various modifications and improvements can be made without departing from the structure of the present invention. These should also be regarded as the scope of protection of the present invention and will not affect the effect and practicality of the implementation of the present invention.

Claims

1. An energy-saving combustion stepped furnace with uniform biomass mixing, comprising a stepped furnace (1) and a loading port (2) provided on one side of the stepped furnace (1), characterized in that: A loading assembly (3) is provided on the loading port (2), and the loading assembly (3) includes a loading frame (31) for transmitting coal. An extrusion assembly (4) is provided above the loading frame (31). A grid plate (5) and a flap (6) are provided at the middle and two sections of the output end of the loading frame (31), respectively. A guide assembly (7) is provided on each of the flaps (6). The guide assembly (7) includes a guide plate (71) slidably provided on the grid plate (5). A lifting assembly (8) and a locking assembly (9) are provided on each of the two sides of the guide assembly (7). The extrusion assembly (4) is used to squeeze bamboo chips into balls. The guide assembly (7) drives the guide plate (71) to guide the coal when the flaps (6) on both sides are turned over. The lifting assembly (8) is used to drive the grid plate (5) to rise and fall, and the locking assembly (9) is used to lock the grid plate (5).

2. The energy-saving combustion stepped furnace with uniform biomass mixing according to claim 1 is characterized by: The feeding assembly (3) further comprises an auger (32) fixedly arranged on the feeding frame (31).

3. The energy-saving combustion stepped furnace with uniform biomass mixing according to claim 1 is characterized by: The extrusion assembly (4) comprises an opening (41) opened on the feeding frame (31), a fixing frame (42) fixedly arranged on the feeding frame (31), extrusion rollers (43) rotatably arranged on both sides of the fixing frame (42), a material box (44) fixedly arranged above the extrusion rollers (43), and active teeth (45) and passive teeth (46) fixedly arranged on the extrusion rollers (43), wherein the active teeth (45) and the passive teeth (46) are meshed with each other.

4. The energy-saving combustion stepped furnace with uniform biomass mixing according to claim 1 is characterized by: The single group of guide components (7) further includes a slide groove (72) provided on the loading frame (31), a limiting groove (73) provided on both sides of the slide groove (72), a rotating shaft (74) rotatably provided on the loading frame (31), a disc (75) fixedly provided on the rotating shaft (74), a fixed plate (77) fixedly provided on the loading frame (31), a slide rod (78) slidably provided on the fixed plate (77), a connecting rod (79) hingedly provided between the disc (75) and the slide rod (78), and a sliding column (710) slidably provided on the slide rod (78), the rotating shaft (74) is fixedly connected to the flap (6), the sliding column (710) is fixedly connected to the guide plate (71), the grille plate (5) cooperates with the slide groove (72), and the guide plate (71) cooperates with the limiting groove (73).

5. The energy-saving combustion stepped furnace with uniform biomass mixing according to claim 4 is characterized by: The lifting assembly (8) comprises a first rack (81) fixedly arranged on a side slide bar (78), a first gear (82) rotatably arranged on a loading frame (31), a first connecting shaft (83) fixedly arranged on the first gear (82), a first bevel gear (84) fixedly arranged on the first connecting shaft (83), a second connecting shaft (85) rotatably arranged on the loading frame (31), second bevel gears (86) and a second gear (87) fixedly arranged on both sides of the second connecting shaft (85), a connecting column (88) fixedly arranged on the grid plate (5), and a lifting shaft (86) slidably arranged on the connecting column (88). A lifting column (89), a spring (810) fixedly arranged between the connecting column (88) and the lifting column (89), a fixing sleeve (811) fixedly arranged on the lifting column (89), a telescopic rod (812) fixedly arranged on the loading frame (31), a second rack (813) fixedly arranged on the telescopic rod (812), the first bevel gear (84) meshing with the second bevel gear (86), the first rack (81) meshing with the first gear (82), the second gear (87) meshing with the second rack (813), and the telescopic rod (812) being fixedly connected to the fixing sleeve (811).

6. The energy-saving combustion stepped furnace with uniform biomass mixing according to claim 4 is characterized by: The locking assembly (9) includes a locking groove (91) provided on the grid plate (5), a first hydraulic groove (92) provided on the inner wall of the loading frame (31), a second hydraulic groove (93) provided on the first hydraulic groove (92), a cylinder (94) fixedly provided on the loading frame (31), a piston (95) slidably provided in the cylinder (94), a piston rod (96) fixedly provided on the piston (95), a latch (97) slidably provided in the first hydraulic groove (92), and a hydraulic pipe (98) fixedly connected between the cylinder (94) and the second hydraulic groove (93), wherein the piston rod (96) is fixedly connected to the sliding rod (78) on the other side, and the latch (97) cooperates with the locking groove (91).

7. The energy-saving combustion stepped furnace with uniform biomass mixing according to claim 6, characterized in that: The latch (97) and the piston (95) are both made of rubber.

8. The energy-saving combustion stepped furnace with uniform biomass mixing according to claim 1, characterized in that: A torsion spring is provided between the flap (6) and the loading frame (31).

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