Waste biomass crushing device

Abstract

The utility model relates to the technical field of waste biomass smashing, and particularly provides a waste biomass smashing device which comprises a smashing shell, the smashing shell is of a hollow cylindrical structure, a feeding port is formed in the end of the smashing shell, a discharging port is formed in the bottom of the smashing shell, and a discharging port is formed in the bottom of the smashing shell. A dust removal opening is formed in the upper side of the crushing shell; the crushing assembly is arranged in the crushing shell and is used for crushing the waste biomass entering the crushing shell; the exhaust fan is arranged at the dust removal opening, air in the crushing shell is exhausted after the exhaust fan is powered on, so that negative pressure is generated in the crushing shell, and the exhaust end of the exhaust fan is sleeved with a dust collection bag; compared with a traditional crushing device, the dust in the air can be reduced, and the quality of a working environment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste biomass crushing, in particular to a waste biomass crushing device. Background Art

[0002] Waste biomass, such as straw, corn cobs, branches, peanut shells, etc., can be used to prepare biofuels. When preparing these biofuels, these fuels need to be crushed.

[0003] Since these waste biomasses are often mixed with dust, a large amount of dust will be generated during crushing, which will cause a bad working environment and affect the health of workers. Therefore, the present application proposes a waste biomass crushing device. Utility Model Content

[0004] The purpose of the utility model is to provide a waste biomass crushing device to solve the problem of large dust in the current biomass crushing device.

[0005] problem.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A waste biomass pulverizing device, comprising:

[0008] A crushing shell, which is a hollow cylindrical structure, with a feed port at the end of the crushing shell, a discharge port at the bottom of the crushing shell, and a dust removal port on the upper side of the crushing shell;

[0009] A pulverizing assembly is provided inside the pulverizing shell, and is used to crush the waste biomass entering the pulverizing shell;

[0010] An exhaust fan is provided at the dust removal port. When the exhaust fan is powered on, it discharges the air in the crushing shell, so that negative pressure is generated in the crushing shell. A dust collecting bag is provided at one end of the exhaust fan.

[0011] Furthermore, the crushing assembly includes:

[0012] A pulverizing shaft rotatably connected to the pulverizing shell, wherein a plurality of pulverizing blades are fixedly connected to the pulverizing shaft;

[0013] A pulverizing motor is fixedly connected to the pulverizing shell, and the pulverizing motor is used to drive the pulverizing shaft to rotate.

[0014] Furthermore, the width of the discharge port is smaller than the length of the crushing shell, and the discharge port is close to the end of the crushing shell away from the feed port, and the angle between the crushing blade and the axis of the crushing shaft is less than degrees.

[0015] Furthermore, an isolation net is provided at the dust removal port to block the crushed materials.

[0016] Furthermore, the dust removal port is a countersunk structure, the isolation net is placed at the dust removal port, a rotating plate is provided on the exhaust fan, the rotating plate is fixed to the end of the exhaust fan, the end of the rotating plate away from the crushing shell is rotatably connected to the crushing shell, a locking hole is also provided on the rotating plate, a threaded hole is provided on the crushing shell, and a locking bolt is also provided on the rotating plate, the locking bolt passes through the locking hole and is fixed to the threaded hole for locking the rotating plate.

[0017] Furthermore, the pulverizing device also includes a scraper assembly, which is used to scrape off the powder on the isolation net.

[0018] Furthermore, the scraper assembly includes:

[0019] a swing motor fixedly connected to the pulverizing shell, wherein the output shaft of the swing motor is located inside the pulverizing shell;

[0020] The scraper bar is fixed to the output shaft of the swing motor. When the swing motor drives the scraper bar to swing, the scraper bar sweeps across the isolation net.

[0021] In summary, the present invention has the following beneficial effects compared with the prior art:

[0022] The waste biomass crushing device disclosed in the embodiment of the present utility model exhausts the air in the crushing shell by arranging an exhaust fan, so that the dust in the crushing shell is discharged from the exhaust fan along with the air, and the dust in the air is collected by the dust collecting bag, thereby preventing the dust from being discharged into the working environment. Compared with the traditional crushing device, it can reduce the dust in the air and improve the quality of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the waste biomass crushing device disclosed in an embodiment of the present utility model.

[0024] Figure 2 This is a front view of the waste biomass crushing device disclosed in an embodiment of the present utility model.

[0025] Figure 3 for Figure 2 Cross-sectional view of AA in the figure.

[0026] Figure 4 for Figure 2 Cross-sectional view of the BB.

[0027] Figure 5for Figure 2 Top view of .

[0028] Figure 6 This is a schematic structural diagram of a pulverizing assembly in a waste biomass pulverizing device disclosed in an embodiment of the present utility model.

[0029] Reference numerals:

[0030] 10. Crushing shell; 11. Feed hopper; 12. Discharge hopper; 13. Support legs; 14. Rotating shaft; 20. Crushing assembly; 21. Crushing shaft; 22. Crushing blades; 23. Crushing motor; 30. Exhaust fan; 31. Rotating plate; 32. Locking bolt; 40. Isolation net; 50. Scraping net assembly; 51. Swinging motor; 52. Scraping bar. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 3 As shown, an embodiment of the present invention provides a waste biomass pulverizing device, the pulverizing device comprising:

[0033] A crushing shell 10, which is a hollow cylindrical structure. A feed port is provided at the end of the crushing shell 10, a discharge port is provided at the bottom of the crushing shell 10, and a dust removal port is provided on the upper side of the crushing shell 10;

[0034] A crushing assembly 20 is provided inside the crushing shell 10, and the crushing assembly 20 is used to crush the waste biomass entering the crushing shell 10;

[0035] An exhaust fan 30 is provided at the dust removal port. When the exhaust fan 30 is powered on, it discharges the air in the pulverizing shell 10, so that negative pressure is generated in the pulverizing shell 10. One end of the exhaust fan 30 is provided with a dust collecting bag (not shown in the figure).

[0036] In this embodiment, when the waste biomass is crushed, the waste biomass is added to the crushing shell 10, and the crushing component 20 is powered on and rotated. When the crushing component 20 rotates, the waste biomass entering the crushing shell 10 is crushed. When the waste biomass is crushed, the exhaust fan 30 is started at the same time. The exhaust fan 30 discharges the air in the crushing shell 10, so that a negative pressure is generated in the crushing shell 10. The outside air enters the crushing shell 10 through the gaps on the crushing shell 10 and the feed port and the discharge port and is discharged from the exhaust fan 30. The air carries the dust into the dust bag and is isolated in the dust bag. The dust bag is used to collect dust and can prevent dust from entering the working environment.

[0037] The waste biomass pulverizing device disclosed in the embodiment of the present utility model exhausts the air in the pulverizing shell 10 by arranging an exhaust fan 30, so that the dust in the pulverizing shell 10 is discharged from the exhaust fan 30 along with the air, and the dust in the air is collected by the dust collecting bag, thereby preventing the dust from being discharged into the working environment. Compared with the traditional pulverizing device, it can reduce the dust in the air and improve the quality of the working environment.

[0038] Specifically, in this embodiment, the pulverizing shell 10 is a cylindrical structure, and sealing plates are fixed to both ends of the pulverizing shell 10 by welding. The pulverizing shell 10 is divided into two parts along the axis, one part is semi-cylindrical and the other part is trapezoidal. The feed port is located at the end of the pulverizing shell 10, and the discharge port is located on the lower side of the pulverizing shell 10;

[0039] Preferably, a feed hopper 11 is fixed at the feed port by welding, a discharge hopper 12 is fixed at the discharge port by welding, and a support leg 13 is fixedly connected to the lower side of the crushing shell 10 by welding. The feed hopper 11, the discharge hopper 12 and the support leg 13 are all existing technologies.

[0040] like Figure 3 and Figure 6 As shown, the crushing assembly 20 includes:

[0041] A pulverizing shaft 21 is rotatably connected to the pulverizing housing 10 , and a plurality of pulverizing blades 22 are fixedly connected to the pulverizing shaft 21 ;

[0042] A pulverizing motor 23 fixedly connected to the pulverizing housing 10, the pulverizing motor 23 is used to drive the pulverizing shaft 21 to rotate;

[0043] Specifically, the pulverizing shaft 21 is rotatably connected to the pulverizing shell 10 via a bearing, a plurality of pulverizing blades 22 are provided, a first pulley is fixedly connected to the end of the pulverizing shaft 21, a second pulley is fixedly connected to the output shaft of the pulverizing motor 23, the first pulley and the second pulley are connected by a belt, and the pulverizing motor 23 is fixedly connected to the outside of the pulverizing shell 10 by bolts;

[0044] The crushing blades 22 can be distributed in a spiral shape on the crushing shaft 21 or can be distributed at equal intervals. When the crushing blades 22 rotate, they can cut the waste biomass.

[0045] Preferably, the width of the discharge port is smaller than the length of the pulverizing shell 10, and the discharge port is close to the end of the pulverizing shell 10 away from the feed port, and the angle between the pulverizing blade 22 and the axis of the pulverizing shaft 21 is less than 90 degrees, so that when the pulverizing shaft 21 rotates, the pulverizing blade 22 can drive the powder at the bottom of the pulverizing shell 10 to move toward the discharge port;

[0046] In the prior art, the plane where the cutting blade is located is perpendicular to the axis of the shaft on which it is located. In this embodiment, the angle between the plane where the crushing blade 22 is located and the axis of the crushing shaft 21 is less than 90 degrees and greater than 80 degrees, so that when the crushing shaft 21 rotates, the crushing blade 22 will not generate a large air flow, while still being able to stir the flow of powder.

[0047] In this embodiment, the exhaust fan 30 is an axial flow fan, the exhaust fan 30 is connected to the dust removal port, and the dust bag is fixed to the air outlet end of the exhaust fan 30 by means of a clamp.

[0048] Preferably, an isolation net 40 is further provided at the dust removal port to block the crushed materials. For example, when waste biomass is crushed into light materials such as straw, the exhaust fan 30 will discharge some small particles of light materials. In order to reduce the discharge of light materials, an isolation net 40 is fixed at the dust removal port. The isolation net 40 is located at the air inlet end of the exhaust fan 30.

[0049] Preferably, Figure 5The exhaust fan 30 is rotated to the dust removal port, and then fixed by the locking bolt 32.

[0050] Preferably, the pulverizing device further includes a scraper assembly 50, and the scraper assembly 50 is used to scrape off the powder on the isolation net 40;

[0051] like Figure 4 As shown, the scraper assembly 50 includes a swing motor 51 fixedly connected to the pulverizing shell 10, the output shaft of the swing motor 51 is located inside the pulverizing shell 10, and a scraper bar 52 is located inside the pulverizing shell 10. The scraper bar 52 is fixed to the output shaft of the swing motor 51. When the swing motor 51 drives the scraper bar 52 to swing, the scraper bar 52 sweeps across the isolation net 40;

[0052] The scraper bar 52 is embedded in the end of the output shaft of the swing motor 51 . The scraper bar 52 is a steel bar, and the isolation net 40 is a steel net.

[0053] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. As used in this utility model and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0054] It should be understood that although the terms first, second, third, etc. may be used in this utility model to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, first information can also be referred to as second information without departing from the scope of this utility model, and similarly, second information can also be referred to as first information. Depending on the context, the word "if" as used herein can be interpreted as "when...", "when...", or "in response to determining."

[0055] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste biomass crushing device, characterized in that: The pulverizing device comprises: A pulverizing shell (10), wherein the pulverizing shell (10) is a cylindrical structure with a hollow interior, a feed port is provided at the end of the pulverizing shell (10), a discharge port is provided at the bottom of the pulverizing shell (10), and a dust removal port is provided on the upper side of the pulverizing shell (10); a pulverizing assembly (20) disposed inside the pulverizing shell (10), the pulverizing assembly (20) being used to crush the waste biomass entering the pulverizing shell (10); An exhaust fan (30) is provided at the dust removal port. When the exhaust fan (30) is powered on, it discharges the air in the pulverizing shell (10), so that negative pressure is generated in the pulverizing shell (10). A dust collecting bag is provided at one end of the exhaust fan (30).

2. The waste biomass pulverizing device according to claim 1, characterized in that: The crushing assembly (20) comprises: A pulverizing shaft (21) rotatably connected to the pulverizing shell (10), wherein a plurality of pulverizing blades (22) are fixedly connected to the pulverizing shaft (21); A pulverizing motor (23) is fixedly connected to the pulverizing shell (10), and the pulverizing motor (23) is used to drive the pulverizing shaft (21) to rotate.

3. The waste biomass pulverizing device according to claim 2, characterized in that: The width of the discharge port is smaller than the length of the pulverizing shell (10), and the discharge port is close to the end of the pulverizing shell (10) away from the feed port, and the angle between the pulverizing blade (22) and the axis of the pulverizing shaft (21) is less than (90) degrees.

4. The waste biomass pulverizing device according to any one of claims 1 to 3, characterized in that: An isolation net (40) is also provided at the dust removal port to block the crushed materials.

5. The waste biomass pulverizing device according to claim 4, characterized in that: The dust removal port is a countersunk structure, the isolation net (40) is placed at the dust removal port, a rotating plate (31) is provided on the exhaust fan (30), the rotating plate (31) is fixed to the end of the exhaust fan (30), the end of the rotating plate (31) away from the pulverizing shell (10) is rotatably connected to the pulverizing shell (10), the rotating plate (31) is also provided with a locking hole, the pulverizing shell (10) is provided with a threaded hole, the rotating plate (31) is also provided with a locking bolt (32), the locking bolt (32) passes through the locking hole and is fixed to the threaded hole for locking the rotating plate (31).

6. The waste biomass pulverizing device according to claim 5, characterized in that: The pulverizing device further comprises a scraping net assembly (50), and the scraping net assembly (50) is used to scrape off the powder on the isolation net (40).

7. The waste biomass pulverizing device according to claim 6, characterized in that: The scraper assembly (50) comprises: a swing motor (51) fixedly connected to the pulverizing shell (10), wherein the output shaft of the swing motor (51) is located inside the pulverizing shell (10); A scraper (52) is fixed to the output shaft of the swing motor (51). When the swing motor (51) drives the scraper (52) to swing, the scraper (52) sweeps across the isolation net (40).

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