Mixed biomass energy-saving combustion stepped furnace

Abstract

The invention relates to the technical field of stepped furnaces, in particular to a mixed biomass energy-saving combustion stepped furnace which comprises a stepped furnace body and a feeding area, a conveying pipe is arranged in the feeding area, a driving assembly and a transmission assembly are arranged at the right end of the stepped furnace body, and a material frame a, a material frame b and a material frame c are sequentially arranged on the conveying pipe from left to right. A material roller a, a material roller b and a material roller c are rotatably arranged in the material frame a, the material frame b and the material frame c correspondingly, lifting assemblies are slidably arranged on the material frame a and the material frame c correspondingly, a driving assembly drives the material roller a, the material roller b and the material roller c to rotate through gear meshing, and coal and bamboo scraps in the material roller a, the material roller b and the material roller c are sucked into a material conveying pipe to be mixed through the negative pressure effect. The lifting assembly is driven by the transmission assembly to dredge coal in the material roller a and the material roller c, and the coal and bamboo sawdust in the material conveying pipe are blown into the stepped furnace through the air blower to be combusted. The problem of insufficient combustion heat supply caused by different feeding proportions of alternative fuels is solved.

Description

Technical Field

[0001] The invention relates to the technical field of stepped furnaces, and in particular to a mixed biomass energy-saving combustion stepped furnace. Background Art

[0002] A stepped furnace is a commonly used combustion equipment with good temperature control and emission control characteristics. A Chinese invention patent with application announcement number CN115046211A discloses an intelligent alternative fuel incinerator, including a furnace body, a furnace bed and a decomposition furnace. A plurality of stepped grates arranged in sequence are formed on the furnace bed, which avoids the leakage of conventional incinerators due to poor sealing, solves the risk of leakage of alternative fuels, especially leakage of hazardous waste fuels, and improves the utilization efficiency of alternative fuels.

[0003] However, the inventors found that in actual use, the feed ratio of alternative fuels was different, resulting in insufficient combustion heat supply. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies in the prior art. By arranging a material frame a, a material frame b and a material frame c from left to right in sequence on the feed pipe, material rollers a, material rollers b and material rollers c are rotatably arranged in the material frames a, material frames b and material frames c respectively, and a driving component drives the material rollers a, material rollers b and material rollers c to rotate through gear meshing, and the coal and bamboo chips in the material rollers a, material rollers b and material rollers c are respectively sucked into the feed pipe for mixing through the negative pressure effect, and the lifting component is driven by the transmission component to dredge the coal in the material rollers a and material rollers c, and the coal and bamboo chips in the feed pipe are blown into the stepped furnace for combustion by a blower, thereby solving the problem of insufficient combustion heat supply due to different feed ratios of alternative fuels.

[0005] In view of the above technical problems, the technical solutions adopted by the present invention are as follows:

[0006] A mixed biomass energy-saving combustion stepped furnace, comprising a stepped furnace and a loading area arranged at the rear end of the stepped furnace, a plurality of stepped furnace platforms are arranged in sequence at the lower end of the stepped furnace, a plurality of air cannons are arranged at the rear end of the stepped furnace platforms, a feeding pipe is arranged in the loading area, a blower is arranged at the rear end of the feeding pipe, a driving assembly and a transmission assembly are arranged at the right end of the stepped furnace, a material frame a, a material frame b and a material frame c are arranged in sequence from left to right on the feeding pipe, and the material frames a and b and material frame c are respectively provided with material rollers a, b and c for rotation, and lifting components are slidably provided on the material frames a and c, and the driving component drives the material rollers a, b and c to rotate through gear meshing, and the coal and bamboo chips in the material rollers a, b and c are respectively sucked into the feed pipe for mixing through the negative pressure effect, and the lifting component is driven by the transmission component to dredge the coal in the material rollers a and c, and the coal and bamboo chips in the feed pipe are blown into the stepped furnace for combustion through the blower.

[0007] As a preference, the material roller a is provided with a plurality of arc-shaped material troughs a, a material pipe a is provided in the middle of the material trough a, and a gear a is provided at the left end of the material roller a.

[0008] As a preference, the material roller b is provided with a plurality of arc-shaped material troughs b, and a material pipe b is provided in the middle of the material trough b.

[0009] As a preference, the material roller c is provided with a plurality of arc-shaped material troughs c, a material pipe c is provided in the middle of the material trough c, the material roller a, material roller b and material roller c are all rotatably arranged on the material conveying pipe, and the material roller a, material roller b and material roller c are all fixedly connected.

[0010] As a preferred embodiment, a negative pressure pipe is provided at one end of the feed pipe close to the step furnace, and fixing rings are provided at both ends of the negative pressure pipe. The side wall of the right end of the negative pressure pipe is respectively provided with two material holes a and material hole b corresponding to material pipe a and material pipe c, and the side wall of the left end of the negative pressure pipe is provided with a material hole c corresponding to material pipe b. The material hole a and the material hole b are both obliquely arranged with an inclination angle of 45 degrees to the side wall, and are arranged in relative directions. The material hole c is obliquely arranged in the direction of the material hole b, with an inclination angle of 60 degrees to the side wall.

[0011] Preferably, the driving assembly includes a driving member arranged at the right end of the step furnace, a rotating shaft driven by the driving member, and a gear b arranged at the front end of the rotating shaft, and a pulley a is arranged on the rotating shaft.

[0012] Preferably, the transmission assembly includes a rotating rod rotatably arranged at the right end of the step furnace, an eccentric wheel arranged on the rotating rod, and a pulley b arranged on the rotating rod, a belt is arranged between the pulley a and the pulley b, and a fixing rod is arranged on the eccentric wheel.

[0013] As a preferred embodiment, the lifting assembly includes two groups of lifting rods slidably arranged on material frames a and c and connecting parts hinged on the lifting rods, one end of the connecting part is hinged to the lifting rods, and the other end is hinged to the fixed rod, and a conical dredging head is provided at the lower end of the lifting rod, and the two groups of lifting rods are fixedly connected by a support rod.

[0014] As a preferred embodiment, the material frames a, b and c are fixedly connected and fixed on the material conveying pipe through a fixing ring, and a feed port is provided on each of the material frames a and c, and a support plate for the lifting rod to slide is provided at the feed port.

[0015] As another preferred embodiment, two identical feeders are provided at the right end of the conveying pipe, and a feeding box is provided at the left end of the conveying pipe. The feeders are used to deliver coal to material frames a and c, and the feeding box is used to deliver bamboo chips to material frame b.

[0016] Beneficial effects of the present invention:

[0017] 1. In the present invention, a material frame a, a material frame b and a material frame c are sequentially arranged on the feed pipe from left to right, and material rollers a, b and c are rotatably arranged in the material frames a, b and c respectively. The driving component drives the material rollers a, b and c to rotate through gear meshing, and the coal and bamboo chips in the material rollers a, b and c are respectively sucked into the feed pipe for mixing through the negative pressure effect. The lifting component is driven by the transmission component to dredge the coal in the material rollers a and c, and the coal and bamboo chips in the feed pipe are blown into the step furnace for combustion through the blower, so that the bamboo chips and coal enter the step furnace for calcination in a fixed ratio, which is conducive to stable heat output.

[0018] In summary, the device has the advantage of stable heat output and is particularly suitable for the field of step furnace technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of a mixed biomass energy-saving combustion ladder furnace;

[0021] Figure 2 This is a schematic diagram of the structure of a mixed biomass energy-saving combustion ladder furnace;

[0022] Figure 3This is a partial structural diagram of a mixed biomass energy-saving combustion ladder furnace;

[0023] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0024] Figure 5 It is a schematic diagram of the structure of the transmission component, the lifting component and the conveying pipe;

[0025] Figure 6 It is a schematic diagram of the structure of material roller a, material roller b and material roller c;

[0026] Figure 7 is a cross-sectional schematic diagram of a negative pressure tube;

[0027] Figure 8 is a schematic diagram of the structure of the lifting assembly;

[0028] Fig. 9 This is the working status diagram of the mixed biomass energy-saving combustion ladder furnace.

[0029] 1. Step furnace; 2. Loading area; 3. Feed pipe; 4. Drive assembly; 5. Transmission assembly; 6. Material roller a; 7. Material roller b; 8. Material roller c; 9. Lifting assembly; 10. Air cannon; 11. Step furnace table; 20. Blower; 30. Feeder; 31. Material frame a; 32. Material frame b; 33. Material frame c; 34. Negative pressure pipe; 35. Fixed ring; 36. Material hole a; 37. Material hole b; 38. Material hole c; 40. Feed box; 41. Driving member; 42. rotating shaft; 43. gear b; 44. pulley a; 51. rotating rod; 52. eccentric wheel; 53. pulley b; 54. belt; 55. fixing rod; 61. material trough a; 62. material pipe a; 63. gear a; 71. material trough b; 72. material pipe b; 81. material trough c; 82. material pipe c; 91. lifting rod; 92. connecting piece; 93. dredging head; 94. supporting rod; 311. feeding port; 312. supporting plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings.

[0031] Embodiment 1

[0032] like Figures 1 to 9As shown, a mixed biomass energy-saving combustion stepped furnace comprises a stepped furnace 1 and a loading area 2 arranged at the rear end of the stepped furnace 1, a plurality of stepped furnace platforms 11 are arranged in sequence at the lower end of the stepped furnace 1, a plurality of air cannons 10 are arranged at the rear end of the stepped furnace platforms 11, a feeding pipe 3 is arranged in the loading area 2, a blower 20 is arranged at the rear end of the feeding pipe 3, a driving component 4 and a transmission component 5 are arranged at the right end of the stepped furnace 1, a material frame a31, a material frame b32 and a material frame c33 are arranged in sequence from left to right on the feeding pipe 3, and the material frame a31, the material frame b32 and the material frame c33 are arranged in sequence on the feeding pipe 3. Material roller a6, material roller b7 and material roller c8 are rotatably arranged in material frame b32 and material frame c33 respectively, and lifting assembly 9 is slidably arranged on material frame a31 and material frame c33. Driving assembly 4 drives material roller a6, material roller b7 and material roller c8 to rotate through gear meshing, and the coal and bamboo chips in material roller a6, material roller b7 and material roller c8 are sucked into the feeding pipe 3 for mixing through negative pressure action, and the lifting assembly 9 is driven by transmission assembly 5 to dredge the coal in material roller a6 and material roller c8, and the coal and bamboo chips in the feeding pipe 3 are blown into the stepped furnace 1 for combustion through the blower 20.

[0033] It is worth mentioning here that by arranging material frames a31, b32 and c33 from left to right in sequence on the feed pipe 3, material rollers a6, b7 and c8 are rotatably arranged in the material frames a31, b32 and c33 respectively, and the driving component 4 drives the material rollers a6, b7 and c8 to rotate through gear meshing, and the coal and bamboo chips in the material rollers a6, b7 and c8 are sucked into the feed pipe 3 for mixing through the negative pressure effect, and the lifting component 9 is driven by the transmission component 5 to dredge the coal in the material rollers a6 and c8, and the coal and bamboo chips in the feed pipe 3 are blown into the step furnace 1 for combustion by the blower 20, so that the bamboo chips and coal enter the step furnace 1 for calcination in a fixed proportion, which is conducive to stable heat output.

[0034] like Figure 6 As shown, a plurality of arc-shaped material grooves a61 are provided on the material roller a6, a material pipe a62 is provided in the middle of the material groove a61, and a gear a63 is provided at the left end of the material roller a6.

[0035] In this example, the gear a63 is meshed with the gear b43 to drive the material rollers a6, b7 and c8 to rotate, thereby achieving material unloading.

[0036] like Figure 6 As shown, a plurality of arc-shaped material grooves b71 are provided on the material roller b7, and a material pipe b72 is provided in the middle of the material groove b71.

[0037] like Figure 6As shown, a plurality of arc-shaped material grooves c81 are provided on the material roller c8, a material pipe c82 is provided in the middle of the material groove c81, the material roller a6, the material roller b7 and the material roller c8 are all rotatably arranged on the material conveying pipe 3, and the material roller a6, the material roller b7 and the material roller c8 are all fixedly connected.

[0038] In this example, the material roller a6, the material roller b7 and the material roller c8 are fixedly connected by bolts and nuts.

[0039] like Figure 5 , Figure 7 As shown, a negative pressure pipe 34 is provided at one end of the feed pipe 3 close to the step furnace 1, and fixing rings 35 are provided at both ends of the negative pressure pipe 34. The side wall of the right end of the negative pressure pipe 34 is respectively provided with two material holes a36 and a material hole b37 corresponding to the material pipe a62 and the material pipe c82, and the side wall of the left end of the negative pressure pipe 34 is provided with a material hole c38 corresponding to the material pipe b72. The material holes a36 and b37 are both obliquely arranged with an inclination angle of 45 degrees to the side wall, and are arranged in relative directions. The material hole c38 is obliquely arranged in the direction of the material hole b37 with an inclination angle of 60 degrees to the side wall.

[0040] In this example, by setting a fixing ring 35, the material frame a31, the material frame b32 and the material frame c33 are all fixedly set on the material conveying pipe 3; the material hole a36 and the material hole b37 are both set obliquely and in relative directions, so that the coal entering the negative pressure pipe 34 will be gathered together, and through the material hole c38, which is set obliquely in the direction of the material hole b37, the bamboo chips and the coal form a hedge and are evenly mixed; the ratio of coal to bamboo chips is 7:3.

[0041] like Figure 4 As shown, the driving assembly 4 includes a driving member 41 arranged at the right end of the stepped furnace 1, a rotating shaft 42 driven by the driving member 41, and a gear b43 arranged at the front end of the rotating shaft 42, and a pulley a44 is arranged on the rotating shaft 42.

[0042] like Figure 4 , Figure 5 As shown, the transmission assembly 5 includes a rotating rod 51 rotatably arranged at the right end of the stepped furnace 1, an eccentric wheel 52 arranged on the rotating rod 51, and a pulley b53 arranged on the rotating rod 51, a belt 54 is arranged between the pulley a44 and the pulley b53, and a fixing rod 55 is arranged on the eccentric wheel 52.

[0043] In this example, the belt 54 is driven to rotate by the rotation of the pulley a44, thereby driving the pulley b53 to rotate, so that the eccentric wheel 52 rotates to drive the lifting assembly 9 to rise and fall.

[0044] like Figure 5 , Figure 8As shown, the lifting assembly 9 includes two groups of lifting rods 91 slidably arranged on the material frame a31 and the material frame c33 and a connecting piece 92 hinged on the lifting rod 91, one end of the connecting piece 92 is hinged to the lifting rod 91, and the other end is hinged to the fixed rod 55. A conical dredging head 93 is provided at the lower end of the lifting rod 91, and the two groups of lifting rods 91 are fixedly connected by a support rod 94.

[0045] like Figure 3 , Figure 5 As shown, the material frame a31, the material frame b32 and the material frame c33 are all fixedly connected and fixed on the material conveying pipe 3 through a fixing ring 35. A feed port 311 is provided on each of the material frames a31 and c33. A support plate 312 is provided at the feed port 311 for the lifting rod 91 to slide.

[0046] like Figure 3 As shown, two identical feeders 30 are provided at the right end of the conveying pipe 3, and a feeding box 40 is provided at the left end of the conveying pipe 3. The feeder 30 is used to deliver coal to the material frame a31 and the material frame c33, and the feeding box 40 is used to deliver bamboo chips to the material frame b32.

[0047] The working process is as follows:

[0048] Bamboo chips are placed in the feeding box 40 and pumped into the trough b71 through the feeding box 40. Coal is fed into the feed port 311 through the feeder 30 and enters the trough a61 and the trough c81. The driving member 41 is started to drive the shaft 42 to rotate, and the shaft 42 drives the gear b43 to rotate, thereby driving the gear a63 to rotate, and the gear a63 drives the material rollers a6, b7 and c8 to rotate. When the material pipes a62, b72 and c82 correspond to the material holes a36, c38 and b37 respectively, , the negative pressure pipe 34 is formed with a negative pressure by the blower 20, so that the coal and bamboo chips enter the negative pressure pipe 34 in a ratio of 7:3, and the material holes a36 and b37 are both arranged obliquely and in relative directions, so that the coal entering the negative pressure pipe 34 will be gathered together, and the material hole c38 is arranged obliquely in the direction of the material hole b37, so that the bamboo chips and coal form a counterattack and are evenly mixed, and the bamboo chips and coal are driven into the stepped furnace 1 by the blower 20, and the bamboo chips and coal are calcined step by step by the air cannon 10 and the stepped furnace 11;

[0049] At the same time, the driving member 41 drives the pulley a44 to rotate, and the rotation of the pulley a44 drives the belt 54 to rotate, thereby driving the pulley b53 to rotate, and the rotating rod 51 is driven to rotate through the pulley b53, thereby driving the eccentric wheel 52 to rotate, and the lifting rod 91 is driven to rise and fall through the connecting member 92 to dredge the coal in the material roller a6 and the material roller c8.

[0050] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A mixed biomass energy-saving combustion stepped furnace, comprising a stepped furnace (1) and a loading area (2) arranged at the rear end of the stepped furnace (1), characterized in that: A plurality of stepped furnace platforms (11) are sequentially arranged at the lower end of the stepped furnace platforms (11), and a plurality of air cannons (10) are arranged at the rear end of each stepped furnace platform (11). A feed pipe (3) is arranged in the loading area (2), and a blower (20) is arranged at the rear end of the feed pipe (3). A driving assembly (4) and a transmission assembly (5) are arranged at the right end of the stepped furnace (1). A material frame a (31), a material frame b (32), and a material frame c (33) are sequentially arranged on the feed pipe (3) from left to right. Material rollers a (6), b (32), and c (33) are rotatably arranged in the material frames a (31), b (32), and c (33). A material roller b (7) and a material roller c (8), the material frame a (31) and the material frame c (33) are both slidably provided with a lifting assembly (9), the driving assembly (4) drives the material roller a (6), the material roller b (7) and the material roller c (8) to rotate through gear meshing, and the coal and bamboo chips in the material roller a (6), the material roller b (7) and the material roller c (8) are respectively sucked into the material conveying pipe (3) for mixing through the negative pressure effect, and the lifting assembly (9) is driven by the transmission assembly (5) to dredge the coal in the material roller a (6) and the material roller c (8), and the coal and bamboo chips in the material conveying pipe (3) are blown into the stepped furnace (1) for combustion through the blower (20).

2. The mixed biomass energy-saving combustion stepped furnace according to claim 1 is characterized in that: The material roller a (6) is provided with a plurality of arc-shaped material grooves a (61), a material pipe a (62) is provided in the middle of the material groove a (61), and a gear a (63) is provided at the left end of the material roller a (6).

3. A mixed biomass energy-saving combustion stepped furnace according to claim 2, characterized in that: The material roller b (7) is provided with a plurality of arc-shaped material grooves b (71), and a material pipe b (72) is provided in the middle of the material groove b (71).

4. The mixed biomass energy-saving combustion stepped furnace according to claim 1, characterized in that: The material roller c (8) is provided with a plurality of arc-shaped material grooves c (81), and a material pipe c (82) is provided in the middle of the material groove c (81). The material roller a (6), the material roller b (7) and the material roller c (8) are all rotatably arranged on the material conveying pipe (3), and the material roller a (6), the material roller b (7) and the material roller c (8) are all fixedly connected.

5. The mixed biomass energy-saving combustion stepped furnace according to claim 1, characterized in that: A negative pressure pipe (34) is provided at one end of the feed pipe (3) close to the step furnace (1), and fixing rings (35) are provided at both the left and right ends of the negative pressure pipe (34). The side wall of the right end of the negative pressure pipe (34) is provided with two material holes a (36) and a material hole b (37) corresponding to the material pipe a (62) and the material pipe c (82), respectively. The side wall of the left end of the negative pressure pipe (34) is provided with a material hole c (38) corresponding to the material pipe b (72). The material hole a (36) and the material hole b (37) are both obliquely arranged, with an inclination angle of 45 degrees to the side wall, and are arranged in relative directions. The material hole c (38) is arranged obliquely in the direction of the material hole b (37), with an inclination angle of 60 degrees to the side wall.

6. The mixed biomass energy-saving combustion stepped furnace according to claim 1, characterized in that: The driving assembly (4) comprises a driving member (41) arranged at the right end of the stepped furnace (1), a rotating shaft (42) driven by the driving member (41), and a gear b (43) arranged at the front end of the rotating shaft (42); a pulley a (44) is arranged on the rotating shaft (42).

7. The mixed biomass energy-saving combustion stepped furnace according to claim 6, characterized in that: The transmission assembly (5) comprises a rotating rod (51) rotatably arranged at the right end of the stepped furnace (1), an eccentric wheel (52) arranged on the rotating rod (51), and a pulley b (53) arranged on the rotating rod (51); a belt (54) is arranged between the pulley a (44) and the pulley b (53); and a fixing rod (55) is arranged on the eccentric wheel (52).

8. The mixed biomass energy-saving combustion stepped furnace according to claim 7, characterized in that: The lifting assembly (9) comprises two sets of lifting rods (91) slidably arranged on the material frame a (31) and the material frame c (33) and a connecting piece (92) hinged on the lifting rod (91); one end of the connecting piece (92) is hinged to the lifting rod (91) and the other end is hinged to the fixing rod (55); a conical dredging head (93) is arranged at the lower end of the lifting rod (91); and the two sets of lifting rods (91) are fixedly connected via a supporting rod (94).

9. The mixed biomass energy-saving combustion stepped furnace according to claim 8, characterized in that: The material frame a (31), the material frame b (32) and the material frame c (33) are all fixedly connected and fixed on the material conveying pipe (3) through a fixing ring (35). The material frame a (31) and the material frame c (33) are both provided with a feed port (311), and a support plate (312) for the lifting rod (91) to slide is provided at the feed port (311).

10. The mixed biomass energy-saving combustion stepped furnace according to claim 1, characterized in that: Two identical feeders (30) are arranged at the right end of the feed pipe (3), and a feed box (40) is arranged at the left end of the feed pipe (3). The feeder (30) is used to feed coal into the material frame a (31) and the material frame c (33), and the feed box (40) is used to feed bamboo chips into the material frame b (32).

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