A biomass fuel pellet forming machine

Abstract

The invention relates to a biomass fuel particle forming machine, comprising a base, a frame body arranged on one side of the base, a first motor arranged horizontally on the other side of the base, a gearbox arranged in the frame body, and a machine body arranged on the frame body, wherein a first cavity is arranged in the machine body, a bearing is arranged at the bottom of the first cavity, a main shaft is arranged in the first cavity, and the bottom of the main shaft passes through the bearing and is connected with the output shaft of the gearbox; a plurality of second cavities are distributed on the upper part of the main shaft, and a pressure roller assembly is fixedly arranged in each of the second cavities, the pressure roller assembly comprises a pressure roller sleeve, a pressure roller shaft embedded in the pressure roller sleeve, and a pressure roller sleeved on the top of the pressure roller shaft, a first oil nozzle is arranged on the side wall of the machine body, and a plurality of second oil nozzles are arranged on the pressure roller sleeve; the invention adopts this design to save a very complicated lubrication and oil injection system while ensuring sufficient lubrication of the pressure roller, that is, save the oil injection device arranged on the pressure roller, and also avoid the problem of biomass particle contamination caused by oil leakage.

Description

Technical Field

[0001] The invention belongs to the field of biomass fuel, in particular to the field of biomass fuel particle forming machines. Background Art

[0002] Biomass pellet fuel is a granular and environmentally friendly new energy source produced by processing straw, rice straw, rice husk, peanut shell, corn cob, tea husk, cottonseed shell, etc. Compared with traditional fuels, biomass pellet fuel not only has economic advantages but also environmental benefits, and fully meets the requirements of sustainable development. In addition, biomass fuel is made into granules, which not only compresses the volume and saves storage space, but also facilitates transportation and reduces transportation costs. At present, the commonly used biomass pellet fuel processing equipment mostly adopts the die extrusion method, and the main shaft drives the roller to extrude the material into particles through the die. The equipment is usually driven by a motor, the speed is adjusted by a reducer, and the main shaft drives the roller to move. Since the granulation of biomass particles depends entirely on the extrusion force between the roller and the ring die, the working environment of the ring die and the roller is relatively poor. In order to reduce the wear of the roller, the method of stopping the machine for oiling is usually adopted during the working process. Such operation is very troublesome and is also easy to affect the construction period. In order to solve this problem, the company's Chinese invention patent discloses a bio The automatic oiling device for the pressing roller of a biomass pellet machine has an application number of 201910720113.1. That is, by adopting this device, the pressing roller can be lubricated continuously without stopping the machine. However, due to the structural limitation of the pellet machine, the part of the lubrication system connected to the pressing roller can only be placed above the pressing roller when in use, which not only occupies a large space in the cavity, but also has a large gap in the connecting part of this structure, and biomass powder can easily enter this part of the structure, thereby causing mechanical failure. In addition, although uninterrupted oiling can be achieved, it is necessary to set up a separate pipeline on the equipment, which greatly increases the processing cost. The addition of numerous device structures is also prone to failure, and a single failure affects the entire structure, resulting in poor economic efficiency. Summary of the invention

[0003] In order to solve the above problems, the present invention achieves the above objectives through the following technical solutions:

[0004] A biomass fuel pellet forming machine comprises a base, a frame arranged on one side of the base, a first motor arranged horizontally on the other side of the base, a gearbox arranged in the frame, and a body arranged on the frame, a coupling is connected between the input shaft of the gearbox and the output shaft of the first motor, a first cavity is arranged in the body, a bearing is arranged at the bottom of the first cavity, a main shaft is arranged in the first cavity, and the bottom of the main shaft is connected to the output shaft of the gearbox through the bearing; a plurality of second cavities are distributed on the upper part of the main shaft, and a pressure roller assembly is fixed in each of the second cavities, the pressure roller assembly comprises a pressure roller sleeve, a pressure roller shaft embedded in the pressure roller sleeve, and a pressure roller sleeved on the top of the pressure roller shaft, a first oil nozzle is arranged on the side wall of the body, a plurality of second oil nozzles are arranged on the pressure roller sleeve, and the first oil nozzle is connected to the second oil nozzle.

[0005] As a further optimization solution of the present invention, a ring die is fixedly provided above the machine body, and the pressure roller is arranged in the ring die.

[0006] As a further optimization scheme of the present invention, a cutting gear ring is provided above the ring die, a plurality of cutting knives are fixedly provided on the lower surface of the cutting gear ring, and a second motor is provided on the outer surface of the machine body, and the second motor drives the cutting gear ring to rotate.

[0007] As a further optimization solution of the present invention, a ring cover is provided on the machine body, a cone ring is provided on the top of the ring cover, and a feed port is provided on the top of the cone ring.

[0008] As a further optimization solution of the present invention, a pressure roller cover is provided on the top of the pressure roller.

[0009] As a further optimization solution of the present invention, the adjacent pressure roller covers are covered with a material guiding platform.

[0010] The beneficial effects of the present invention are:

[0011] 1) The present invention adopts this design to eliminate the need for a very complex lubrication oil injection system while ensuring that the roller is fully lubricated, that is, the need for an oil injection device on the roller is eliminated, and the problem of biomass particle contamination caused by oil leakage is also avoided;

[0012] 2) There is no complicated oil injection device structure above the pressing roller of the present application, which can also effectively prevent the biomass powder from easily entering the gap of the device and causing malfunction when entering the ring cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 is a schematic top view of the device in the present invention;

[0015] Figure 3 The present invention Figure 2 Schematic diagram of the cross-sectional structure at AA in FIG.

[0016] Figure 4 The present invention Figure 2 Schematic diagram of the cross-sectional structure at BB in FIG.

[0017] Figure 5 It is a schematic diagram of the structure in the body of the present invention;

[0018] Figure 6 It is a schematic diagram of the cross-sectional structure of the main shaft in the present invention;

[0019] Figure 7 It is a schematic diagram of the top view of the main shaft in the present invention;

[0020] Figure 8 It is a structural schematic diagram of the pressure roller assembly in the present invention;

[0021] Fig. 9 It is a structural schematic diagram of the material guiding platform in the present invention;

[0022] Fig.10 It is a schematic structural diagram of the interruption gear ring of the present invention;

[0023] In the figure: 1. base; 2. frame; 21. gearbox; 3. first motor; 4. body; 41. first cavity; 42. bearing; 43. first oil nozzle; 44. ring die; 45. cutting gear ring; 451. cutting knife; 46. second motor; 47. ring cover; 48. cone ring; 49. feed port; 5. coupling; 6. main shaft; 61. second cavity; 7. pressure roller assembly; 71. pressure roller bushing; 711. second oil nozzle; 72. pressure roller shaft; 73. pressure roller; 8. pressure roller cover; 9. material guide table. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0025] Example 1

[0026] like Figures 1 to 10A biomass fuel pellet forming machine is shown, comprising a base 1, a frame 2 arranged on one side of the base 1, a first motor 3 arranged horizontally on the other side of the base 1, a gearbox 21 arranged in the frame 2, and a machine body 4 arranged on the frame 2, wherein a coupling 5 is connected between an input shaft of the gearbox 21 and an output shaft of the first motor 3; when working, the first motor transmits power to the gearbox through the coupling, and then changes the power transmission direction from horizontal to vertical through the gearbox, and then transmits the power to the main shaft in the machine body;

[0027] A first cavity 41 is provided in the body 4, a bearing 42 is provided at the bottom of the first cavity 41, and a main shaft 6 is also provided in the first cavity 41. The cross section of the main shaft is "T" shaped as a whole, and the upper surface of the main shaft is consistent with the upper surface of the body, that is, when the bottom of the main shaft is assembled, the bottom of the main shaft 6 passes through the bearing 42 and is connected to the output shaft of the gearbox 21;

[0028] A plurality of second cavities 61 are provided on the upper part of the main shaft 6, and a roller assembly 7 is embedded in each of the second cavities 61. The roller assembly 7 includes a roller sleeve 71, a roller shaft 72 embedded in the roller sleeve 71, and a roller 73 sleeved on the top of the roller shaft 72. Meanwhile, a first oil nozzle 43 is provided on the side wall of the machine body 4, and a plurality of second oil nozzles 711 are provided on the roller sleeve 71, and the first oil nozzle 43 is connected with the second oil nozzle 711. It should be noted that, since the roller sleeve is embedded in the main shaft, a through hole is also provided on the side wall of the second cavity of the main shaft, and the first oil nozzle and the second oil nozzle are not always connected. When oil injection is required, the oil pipe is passed through the through hole and connected with the second oil nozzle on the roller sleeve. When working, the first oil nozzle 43 can be connected with the second oil nozzle 711 first, so that the roller sleeve where the roller shaft is located is filled with lubricating oil, such as butter.

[0029] The design can eliminate the need for a very complex lubrication oil injection system, i.e., the oil injection device provided on the pressure roller, while ensuring that the pressure roller is fully lubricated. This also avoids the problem of biomass particle contamination caused by oil leakage. In addition, the pressure roller of the present application does not have a complex oil injection device structure, which effectively avoids the problem of biomass powder easily entering the gap of the device when entering the ring cover and causing malfunctions.

[0030] In addition, a ring die 44 is fixedly provided above the machine body 4. When working, a pressure roller 73 is arranged on the inner side of the ring die 44, and driven by the main shaft, the pressure roller continuously extrude the biomass raw material from the extrusion hole of the ring die; a cutting gear ring 45 is provided above the ring die 44, and a plurality of cutting knives 451 are fixedly provided on the lower surface of the cutting gear ring 45, and a second motor 46 is provided on the outer surface of the machine body 4, and the second motor 46 drives the cutting gear ring 45 to rotate; a ring cover 47 is provided on the machine body 4, and a cone ring 48 is provided on the top of the ring cover 47, and a feed port 49 is provided on the top of the cone ring 48; when working, the pressure roller continuously squeezes the biomass powder into dense biomass particle rods through the extrusion between the pressure roller and the ring die, and at this time, the protruding biomass particle rods can be cut off by the cutting knife provided on the outer side of the ring die, and finally the biomass particles fall out through the discharge port connected to the ring cover;

[0031] Furthermore, in order to prevent the biomass raw material from entering the ring cover through the feed port, and to prevent the biomass powder from entering the gap between the pressing roller and the pressing roller shaft, a pressing roller cover 8 is provided on the top of the pressing roller 73;

[0032] Furthermore, in order to prevent the biomass raw materials from being easily accumulated on the upper surface of the roller cover and not being effectively utilized in time, a material guide platform 9 can be provided above the adjacent roller cover 8; when the biomass raw materials enter, they can be dropped into the gap between the roller and the ring die by the material guide platform to ensure sufficient raw material supply, so that the biomass particles extruded on the ring die are evenly distributed, avoiding excessive local stress.

[0033] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A biomass fuel pellet forming machine, characterized in that: The invention comprises a base (1), a frame (2) arranged on one side of the base (1), a first motor (3) arranged horizontally on the other side of the base (1), a gearbox (21) arranged in the frame (2), and a body (4) arranged on the frame (2), wherein a coupling (5) is provided between an input shaft of the gearbox (21) and an output shaft of the first motor (3), a first cavity (41) is provided in the body (4), a bearing (42) is provided at the bottom of the first cavity (41), a main shaft (6) is further provided in the first cavity (41), and the bottom of the main shaft (6) passes through the bearing (42) and is connected to the output shaft of the gearbox (21); the upper part of the main shaft (6) is provided with There are a plurality of second cavities (61), each of which is provided with a pressure roller assembly (7), the pressure roller assembly (7) comprising a pressure roller sleeve (71), a pressure roller shaft (72) embedded in the pressure roller sleeve (71), and a pressure roller (73) sleeved on the top of the pressure roller shaft (72); a first oil nozzle (43) is provided on the side wall of the machine body (4), and a plurality of second oil nozzles (711) are provided on the pressure roller sleeve (71), and the first oil nozzle (43) is communicated with the second oil nozzle (711); a through hole is also provided on the side wall of the second cavity (61), and when oil injection is required, an oil pipe is passed through the through hole to communicate with the second oil nozzle (711) on the pressure roller sleeve (71); A ring die (44) is fixedly provided above the machine body (4), and the pressure roller (73) is arranged inside the ring die (44); A material-cutting gear ring (45) is provided above the ring die (44), a plurality of material-cutting knives (451) are fixedly provided on the lower surface of the material-cutting gear ring (45), and a second motor (46) is provided on the outer surface of the machine body (4), and the second motor (46) drives the material-cutting gear ring (45) to rotate.

2. A biomass fuel pellet forming machine according to claim 1, characterized in that: The machine body (4) is provided with a ring cover (47), the top of the ring cover (47) is provided with a cone ring (48), and the top of the cone ring (48) is provided with a feed port (49).

3. The biomass fuel pellet forming machine according to claim 1, characterized in that: A pressure roller cover (8) is provided on the top of the pressure roller (73).

4. A biomass fuel pellet forming machine according to claim 3, characterized in that: A material guide platform (9) is provided on the adjacent pressure roller cover (8).

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