Rotary furnace for biomass pyrolysis gasification

Abstract

The utility model discloses a rotary furnace for biomass pyrolysis gasification, which comprises a rotary furnace, two mounting racks are sleeved outside the rotary furnace, rotating components are arranged between the two mounting racks and the rotary furnace and can rotate the rotary furnace, a mounting base is arranged at the bottom of the rotary furnace, and the mounting bases are arranged on the rotary furnace. An air cylinder is rotationally mounted at the top of the mounting base, and two limiting plates are fixedly mounted at the bottom of one mounting frame. By arranging the rolling roller, the hollow stirring blade, the air cylinder and other structures, the rolling roller is used for crushing raw materials, the hollow shaft drives the hollow stirring blade to rotate, and the hollow stirring blade drives the raw materials to rotate, so that the hollow shaft and the hollow stirring blade drive the raw materials to move while drying the raw materials; and under the condition that the air cylinder drives the rotary furnace, automatic feeding and discharging can be completed, manpower resources are saved, the cost is reduced, and the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, in particular to a rotary kiln for biomass pyrolysis gasification. Background Technique

[0002] A biomass pyrolysis gasification rotary kiln is a device specifically used for processing biomass materials. By heating biomass raw materials under the condition of isolating air or adding a small amount of air, pyrolysis reactions occur in the biomass raw materials, generating condensable and non-condensable gases, solid carbon, and other substances in different forms. The purpose of this device is to more effectively utilize biomass energy, reduce dependence on fossil energy, and reduce environmental pollution.

[0003] In the existing biomass pyrolysis gasification rotary kilns, the raw materials usually need to be pretreated manually, such as chopped and dried, to ensure appropriate particle size and moisture content. The working process is cumbersome, and manual loading and unloading are required, wasting human resources, increasing costs, and reducing efficiency. To solve this problem, we propose a rotary kiln for biomass pyrolysis gasification. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is that the rotary kiln for biomass pyrolysis gasification usually requires manual pretreatment of raw materials, such as chopping and drying, to ensure appropriate particle size and moisture content. The working process is cumbersome, and manual loading and unloading are required, wasting human resources, increasing costs, and reducing efficiency.

[0005] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a rotary kiln for biomass pyrolysis gasification, including a rotary kiln. Two mounting frames are sleeved and installed outside the rotary kiln. Rotating components are provided between the two mounting frames and the rotary kiln, which can rotate the rotary kiln. An installation base is arranged at the bottom of the rotary kiln. A cylinder is rotatably installed on the top of the installation base. Two limit plates are fixedly installed at the bottom of one of the mounting frames. The output end of the cylinder is rotatably connected between the two limit plates, which can adjust the angle of the rotary kiln.

[0006] Two support columns are fixedly installed on the top of the installation base. A box body is fixedly installed between the two support columns. A feeding port is opened at the top of the box body. A feeding bin is fixedly installed on the inner side wall of the feeding port, which can store and feed raw materials. Two hollow shafts are rotatably installed on the inner side wall of the box body. Hollow stirring blades are sleeved and fixedly installed on the outer surfaces of the two hollow shafts. One end of each of the two hollow shafts penetrates and extends to the outside of the box body and is fixedly installed with a speed reducer, which can heat and dry the raw materials.

[0007] Preferably, a connecting plate is fixedly installed at the bottom of the box body, and two third motors are fixedly installed on the top of the connecting plate. The output ends of the two third motors are fixedly connected to the input ends of the speed reducers, which can provide power for the transmission and heating of raw materials.

[0008] Preferably, the rotating assembly includes two circular chute boxes. Both of the two circular chute boxes are sleeved and rotatably installed on the surface of the rotary furnace. The other sides of the surfaces of the two circular chute boxes are fixedly connected to the inner side walls of the mounting frames. Two groups of sliders are slidably installed on the inner side walls of the two circular chute boxes. One ends of the two groups of sliders are fixedly connected to the surface of the rotary furnace, which can provide limit for the rotation of the rotary furnace.

[0009] Preferably, a support box is arranged on one side of the surface of the rotary furnace. A square notch is opened on one side of the surface of the support box. A first motor is fixedly installed on the inner side wall of the square notch. The output end of the first motor penetrates and extends to the outside of the support box and is sleeved and fixedly installed with a bracket. A furnace door is rotatably installed on one side of the surface of the bracket. The surface of the furnace door is movably installed with the inner side wall of the rotary furnace. A circular notch is opened on the surface of the furnace door. A one-way valve is fixedly installed on the inner side wall of the circular notch, which can automatically open and close the rotary furnace.

[0010] Preferably, two mounting legs are fixedly installed on the surfaces of the two mounting frames respectively, which can support the rotary furnace.

[0011] Preferably, two rollers are rotatably installed on the inner side wall of the feeding bin. The rotation directions of the two rollers are opposite. The rollers are driven by electric motors respectively, which can crush the raw materials.

[0012] Preferably, a gear disc is sleeved and fixedly installed on the surface of the rotary furnace. A second motor is fixedly installed on the inner side wall of one of the mounting frames. A gear is fixedly installed at the output end of the second motor. The gear is meshed with the gear disc, which can provide power for the rotary furnace.

[0013] Preferably, a discharge port is opened at the bottom of the box body. A slideway is fixedly installed on the inner side wall of the discharge port, which can provide power for the feeding of raw materials.

[0014] The beneficial effects of the present utility model are as follows:

[0015] By arranging structures such as rollers, hollow stirring blades and cylinders, the present utility model crushes the raw materials by using the rollers, drives the hollow stirring blades to rotate through the hollow shaft, and the hollow stirring blades drive the raw materials to rotate, so that the hollow shaft and the hollow stirring blades drive the raw materials to move while drying the raw materials. When the cylinder drives the rotary furnace, automatic loading and unloading can be completed, saving human resources, reducing costs and improving efficiency. Brief Description of the Drawings

[0016] Figure 1 is a perspective view of a rotary furnace for biomass pyrolysis gasification according to the present utility model;

[0017] Figure 2 is a schematic diagram of a partial structure of a rotary furnace for biomass pyrolysis gasification according to the present utility model;

[0018] Figure 3 is a schematic diagram of the structure of a speed reducer and a box body of a rotary furnace for biomass pyrolysis gasification according to the present utility model;

[0019] Figure 4 is a schematic diagram of the structure of a hollow shaft and a hollow stirring blade of a rotary furnace for biomass pyrolysis gasification according to the present utility model;

[0020] Figure 5 is a schematic diagram of the structure of a feeding bin and a roller of a rotary furnace for biomass pyrolysis gasification according to the present utility model.

[0021] In the figure: 1, rotary furnace; 2, mounting frame; 3, circular chute box; 4, slideway; 5, slider; 6, second motor; 7, gear disk; 8, gear; 9, limit plate; 10, cylinder; 11, support box; 12, square notch; 13, first motor; 14, bracket; 15, furnace door; 16, mounting base; 17, mounting leg; 18, support column; 19, box body; 20, feeding bin; 21, roller; 22, third motor; 23, speed reducer; 24, hollow shaft; 25, hollow stirring blade. Detailed Description of the Preferred Embodiment

[0022] The following is a detailed description of the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.

[0023] Please refer to Figure 1 - Figure 3 , a rotary furnace for biomass pyrolysis gasification, including a rotary furnace 1. Two mounting frames 2 are sleeved and installed outside the rotary furnace 1. Rotating components are provided between the two mounting frames 2 and the rotary furnace 1, which can rotate the rotary furnace 1. An installation base 16 is provided at the bottom of the rotary furnace 1. A cylinder 10 is rotatably installed on the top of the installation base 16. Two limit plates 9 are fixedly installed at the bottom of one of the mounting frames 2. The output end of the cylinder 10 is rotatably connected between the two limit plates 9, which can adjust the angle of the rotary furnace 1;

[0024] At the top of the mounting base 16, two support columns 18 are fixedly installed. Between the two support columns 18, a box body 19 is fixedly installed. At the top of the box body 19, a feed inlet is provided. On the inner side wall of the feed inlet, a blanking bin 20 is fixedly installed, which can store and feed raw materials. On the inner side wall of the box body 19, two hollow shafts 24 are rotatably installed. On the outer surfaces of the two hollow shafts 24, hollow stirring blades 25 are sleeved and fixedly installed. One end of each of the two hollow shafts 24 penetrates and extends to the outside of the box body 19 and is fixedly installed with a speed reducer 23, which can heat and dry the raw materials.

[0025] As Figure 1 - Figure 5 shown, on one side of the surface of the rotary kiln 1, a support box 11 is provided. On one side of the surface of the support box 11, a square notch 12 is provided. On the inner side wall of the square notch 12, a first motor 13 is fixedly installed. The output end of the first motor 13 penetrates and extends to the outside of the support box 11 and is sleeved and fixedly installed with a bracket 14. On one side of the surface of the bracket 14, a furnace door 15 is rotatably installed. The surface of the furnace door 15 is movably installed with the inner side wall of the rotary kiln 1. On the surface of the furnace door 15, a circular notch is provided. On the inner side wall of the circular notch, a one-way valve is fixedly installed, which can automatically open and close the rotary kiln 1. At the bottom of the box body 19, a discharge port is provided. On the inner side wall of the discharge port, a slideway 4 is fixedly installed, which can provide power for the feeding of raw materials. On the inner side wall of the blanking bin 20, two rollers 21 are rotatably installed. The two rollers 21 rotate in opposite directions and are both driven by electric motors, which can crush the raw materials. At the bottom of the box body 19, a connecting plate is fixedly installed. On the top of the connecting plate, two third motors 22 are fixedly installed. The output ends of the two third motors 22 are fixedly connected to the input ends of the speed reducer 23, which can provide power for the transmission and heating of the raw materials. On the surface of the rotary kiln 1, a gear disk 7 is sleeved and fixedly installed. On the inner side wall of one of the mounting frames 2, a second motor 6 is fixedly installed. The output end of the second motor 6 is fixedly installed with a gear 8, and the gear 8 is meshed with the gear disk 7, which can provide power for the rotary kiln 1. On the surfaces of the two mounting frames 2, two mounting legs 17 are fixedly installed, which can support the rotary kiln 1. The rotating assembly includes two circular chute boxes 3. The two circular chute boxes 3 are both sleeved and rotatably installed on the surface of the rotary kiln 1. On the other side of the surfaces of the two circular chute boxes 3, they are fixedly connected to the inner side walls of the mounting frames 2. On the inner side walls of the two circular chute boxes 3, two groups of sliders 5 are slidably installed. One end of each of the two groups of sliders 5 is fixedly connected to the surface of the rotary kiln 1, which can provide limit for the rotation of the rotary kiln 1.

[0026] When the utility model is in use, biomass is placed in the feeding bin 20. The rolling roller 21 is driven to rotate by an electric motor. The rolling roller 21 crushes the biomass, and the crushed biomass slides into the interior of the box body 19 through the feeding port. Then, the reduction gear 23 is started. The reduction gear 23 drives the hollow shaft 24 to rotate and reduces the speed through the reduction gear 23. The hollow shaft 24 drives the hollow stirring blades 25 to rotate, so that the hollow stirring blades 25 dry, heat and transport the biomass powder. Finally, the biomass powder slides into the interior of the rotary furnace 1 through the slideway 4. After the feeding is completed, the air cylinder 10 is started. The air cylinder 10 drives the rotary furnace 1 to rotate. When it rotates to a certain position, the first motor 13 is started. The first motor 13 drives the support 14 to rotate, and the support 14 drives the furnace door 15 to rotate, so that the furnace door 15 seals the rotary furnace 1. Then, the second motor 6 is started. The second motor 6 drives the gear 8 to rotate, the gear 8 drives the gear disc 7 to rotate, and the gear disc 7 drives the rotary furnace 1 to rotate. The rotary furnace 1 drives the slider 5 to rotate in the circular chute box 3, so that the biomass powder is pyrolyzed and gasified. After the pyrolysis and gasification are completed, the gas is discharged through the one-way valve. After the gas collection is completed, the first motor 13 is started. The first motor 13 drives the furnace door 15 away from the rotary furnace 1. Then, the air cylinder 10 is started, so that the rotary furnace 1 deflects downward, and the slag is automatically cleaned by reversing the second motor 6.

[0027] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A rotary kiln for biomass pyrolysis and gasification, comprising a rotary kiln (1), characterized in that: The rotary kiln (1) is provided with two mounting frames (2) on its outer sleeve, and a rotating assembly is provided between the two mounting frames (2) and the rotary kiln (1). The bottom of the rotary kiln (1) is provided with a mounting base (16), and a cylinder (10) is rotatably mounted on the top of the mounting base (16). Two limit plates (9) are fixedly mounted on the bottom of one of the mounting frames (2), and the two limit plates (9) are rotatably connected to the output end of the cylinder (10); Two support columns (18) are fixedly installed on the top of the mounting base (16), a box body (19) is fixedly installed between the two support columns (18), a feed port is opened on the top of the box body (19), a lower bin (20) is fixedly installed on the inner side wall of the feed port, two hollow shafts (24) are rotatably installed on the inner side wall of the box body (19), the outer surfaces of the two hollow shafts (24) are both sleeved and fixedly installed with hollow stirring blades (25), and one end of the two hollow shafts (24) extends through and extends to the outside of the box body (19) where a reducer (23) is fixedly installed.

2. The rotary furnace for biomass pyrolysis and gasification according to claim 1, characterized in that: A connecting plate is fixedly mounted on the bottom of the box body (19), and two third motors (22) are fixedly mounted on the top of the connecting plate. The output ends of the two third motors (22) are fixedly connected to the input end of the reducer (23).

3. The rotary furnace for biomass pyrolysis and gasification according to claim 1, characterized in that: The rotating assembly comprises two circular slide boxes (3), the two circular slide boxes (3) are both mounted and rotatably installed on the surface of the rotary kiln (1), the other sides of the surfaces of the two circular slide boxes (3) are fixedly connected to the inner wall of the mounting frame (2), and the inner walls of the two circular slide boxes (3) are slidably installed with two groups of sliders (5), and one end of the two groups of sliders (5) is fixedly connected to the surface of the rotary kiln (1).

4. The rotary furnace for biomass pyrolysis and gasification according to claim 1, characterized in that: A support box (11) is provided on one side of the surface of the rotary kiln (1), a square notch (12) is provided on one side of the surface of the support box (11), a first motor (13) is fixedly mounted on the inner side wall of the square notch (12), an output end of the first motor (13) extends through and extends to the outside of the support box (11) and a bracket (14) is fixedly mounted thereon, a furnace door (15) is rotatably mounted on one side of the surface of the bracket (14), the surface of the furnace door (15) and the inner side wall of the rotary kiln (1) are movably mounted, a circular notch is provided on the surface of the furnace door (15), and a one-way valve is fixedly mounted on the inner side wall of the circular notch.

5. The rotary furnace for biomass pyrolysis and gasification according to claim 1, characterized in that: Two mounting legs (17) are fixedly mounted on the surfaces of the two mounting frames (2).

6. The rotary furnace for biomass pyrolysis and gasification according to claim 1, characterized in that: Two rollers (21) are rotatably mounted on the inner side wall of the lower material bin (20), the two rollers (21) rotate in opposite directions, and the rollers (21) are driven by electric motors.

7. The rotary furnace for biomass pyrolysis and gasification according to claim 1, characterized in that: A gear plate (7) is fixedly mounted on the surface of the rotary kiln (1), a second motor (6) is fixedly mounted on the inner wall of one of the mounting frames (2), a gear (8) is fixedly mounted on the output end of the second motor (6), and the gear (8) and the gear plate (7) are meshingly connected.

8. The rotary furnace for biomass pyrolysis and gasification according to claim 1, characterized in that: A discharge port is provided at the bottom of the box body (19), and a slideway (4) is fixedly mounted on the inner side wall of the discharge port.

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