Straw smashing device for producing biological fuel oil

Abstract

The utility model relates to a straw smashing device for producing biological fuel oil, and belongs to the technical field of smashing equipment. The upper part of the cylinder is provided with a material inlet, the lower part of the cylinder is provided with a material outlet, a rotating shaft containing crushing blades is arranged in the cylinder, one end of the rotating shaft extends out of the cylinder and is connected with a driving device, and the driving device is fixed on the cylinder; a hinge plate is arranged on one side of the lower portion of the barrel, a first hinge hole is formed in the hinge plate, the first hinge hole is hinged to a second hinge hole of the supporting seat through a pin shaft, a hinge lug is arranged on the other side of the lower portion of the barrel, and the hinge lug is hinged to the telescopic end of the linear reciprocating telescopic mechanism. And the cylinder body is pushed to swing back and forth in a vertical plane by taking the first hinge hole as a circle center. According to the utility model, the cylinder body is pushed to swing back and forth in a vertical plane, so that straws in the cylinder move back and forth left and right while being crushed, materials are prevented from being accumulated in dead corners in the cylinder, the materials can be fully crushed, and the uniformity of crushing the straws is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing equipment, in particular to a straw crushing device for producing biofuel. Background Art

[0002] As an important biomass resource, straw is mainly composed of cellulose, hemicellulose, lignin, etc. After pretreatment, the cellulose and hemicellulose in the straw are hydrolyzed under the action of a catalyst to generate sugar solution, which becomes a carbon source that can be fermented and utilized by microorganisms to generate microbial oils, which can be used as raw materials for the production of biodiesel, thereby realizing the high-value utilization of straw resources. Using straw as raw material to produce biodiesel not only saves energy consumption and improves the ecological environment, but also effectively broadens the source of raw materials for biodiesel and ensures a long-term and stable supply of its raw materials.

[0003] At present, the physical method commonly used in the pretreatment of straw is to crush the straw by mechanical crushing, such as using a straw-specific crushing device. In the prior art, a straw crushing device with a notice number of CN 207040283U mentions a structure: it includes a device bracket, a crushing device body, a driving component, a crushing component, a feeding port, a discharging port, a blocking component, and an air blowing device; the crushing device body is installed above the device bracket; the feeding port is arranged at the upper left of the crushing device body; the discharging port is arranged at the lower end of the crushing device body; the driving component is arranged above the crushing device body; the crushing component is arranged inside the crushing device body; the crushing component includes a main stirring shaft and a crushing shaft; the crushing shaft includes a first crushing shaft and a second crushing shaft; the first crushing shaft and the second crushing shaft are arranged crosswise; the two ends of the second crushing shaft are respectively provided with a protruding structure; a blocking component is arranged on the inner side wall of the crushing device body; a plurality of vents are arranged on the blocking component; the blocking component is connected to the air blowing device. This structure uses a multi-stage crushing structure and combines it with a blower to disturb the material to improve the crushing effect of the straw. However, in this mechanism, since the main body of the crushing device is fixed, there are some dead corners for storing materials, causing some straw materials to accumulate in the dead corners of the main body of the crushing device, resulting in uneven straw crushing. In addition, since the main body of the crushing device is arranged vertically, the straw input is crushed from top to bottom in sequence. The upward blowing device is likely to blow too small straw fragments into the top of the main body of the crushing device for re-crushing, and larger straw materials fall into the bottom of the main body of the crushing device, which is likely to cause some straw fragments to be crushed too finely or too large, also causing uneven straw crushing. Utility Model Content

[0004] In order to solve the problem of uneven straw crushing in the straw crushing device in the prior art, the utility model provides a straw crushing device for producing biofuel, which uses a swingable cylinder to fully move the straw material in the cylinder to avoid accumulation in dead corners in the cylinder, thereby improving the uniformity of straw crushing.

[0005] It adopts the following technical solutions:

[0006] A straw crushing device for producing biofuel comprises a horizontally placed cylinder, wherein the upper part of the cylinder is provided with a feed inlet, the lower part of the cylinder is provided with a feed outlet, a rotating shaft containing a crushing blade is provided in the cylinder, one end of the rotating shaft extends out of the cylinder and is connected to a driving device, and the driving device is fixed to the cylinder; a hinge plate is provided on one side of the lower part of the cylinder, a first hinge hole is provided on the hinge plate, the first hinge hole is hinged to the second hinge hole of a support seat through a pin shaft, a hinge ear is provided on the other side of the lower part of the cylinder, the hinge ear is hinged to the telescopic end of a linear reciprocating telescopic mechanism, and when the linear reciprocating telescopic mechanism telescopically moves, the cylinder is pushed to swing back and forth in a vertical plane with the first hinge hole as the center.

[0007] Furthermore, both ends of the rotating shaft are rotatably connected to the cylinder body through seat bearings.

[0008] Furthermore, the driving device is connected to the cylinder through a support frame, and the support frame includes a transverse plate for connecting the driving device and a pair of triangular ribs vertically connected to the transverse plate, and the transverse plate and the triangular ribs are jointly connected to the end plate of the cylinder.

[0009] Furthermore, the discharge port includes a discharge pipe, a screen is provided in the discharge pipe, and a vibration motor is fixedly connected to the discharge pipe.

[0010] Furthermore, a counterweight block for balancing the weight of the driving device is fixedly connected to the other end of the cylinder relative to the driving device.

[0011] Furthermore, the counterweight block is provided with two mounting through holes, and fasteners are inserted into the mounting through holes. The fasteners are connected to the cylinder to lock and fix the counterweight block.

[0012] Furthermore, a wear-resistant plate is provided on the inner wall of the cylinder.

[0013] Furthermore, the feed inlet is also provided with an openable and closable valve.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model provides a hinged plate at the lower part of a cylinder, a support seat is hinged on the hinged plate, and a linear reciprocating telescopic mechanism is hinged to the cylinder, and utilizes the telescopic movement of the linear reciprocating telescopic mechanism to push the cylinder to swing back and forth in a vertical plane, so that the straw in the cylinder moves back and forth left and right while being crushed, until the straw particle size meets the requirements and the crushing process is completed.

[0016] A screen is set in the discharge pipe and a vibration motor is fixedly connected to the discharge pipe. The exciting force generated by the vibration motor is applied to the screen to ensure that the straw particle size meets the process requirements and can be discharged smoothly, reducing material blockage.

[0017] By setting the counterweight block, the weight on the left and right ends of the cylinder can be balanced, reducing the additional force on the linear reciprocating telescopic mechanism caused by the unbalanced weight of the upper structure of the device, optimizing the stress state of the linear reciprocating telescopic mechanism, and improving the service life and stability of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a straw crushing device for producing biofuel in an embodiment of the utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the local cross-section structure;

[0020] Figure 3 yes Figure 2 Schematic diagram of the local cross-section structure in the AA direction;

[0021] Figure 4 yes Figure 2 A schematic diagram of the local enlarged structure at position I in the middle;

[0022] Figure 5 yes Figure 2 Schematic diagram of the local enlarged structure at II in the middle.

[0023] Explanation of the reference numerals in the accompanying drawings: 1. Cylinder; 2. Feed inlet; 21. Valve; 3. Discharge outlet; 31. Discharge pipe; 32. Screen; 33. Vibration motor; 4. Support frame; 41. Horizontal plate; 42. Triangular rib; 5. Driving device; 6. Rotating shaft; 61. Crushing blade; 62. Bearing with seat; 7. Hinge plate; 71. First hinge hole; 8. Pin; 9. Support seat; 91. Second hinge hole; 92. Bottom plate; 93. Support plate; 94. Reinforcing rib; 10. Hinge ear; 11. Linear reciprocating telescopic mechanism; 12. Mounting seat; 13. Counterweight; 14. Mounting through hole; 15. Fastener; 16. Wear-resistant plate. DETAILED DESCRIPTION

[0024] In order to make the present invention more clear, a straw crushing device for producing biofuel of the present invention is further described below in conjunction with the accompanying drawings. The specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0025] like Figures 1 to 3As shown, a straw crushing device for producing biofuel comprises a horizontally placed cylinder 1, which is cylindrical in shape, and is provided with a feed inlet 2 in the upper area of ​​its circumferential side wall, the feed inlet 2 is in a trumpet shape, and is also provided with a valve 21 that can be opened and closed, and the valve 21 is preferably a gate valve; a cylindrical discharge port 3 is provided in the lower area of ​​the circumferential side wall, and the feed inlet 2 and the discharge port 3 are respectively close to the two end areas of the cylinder 1. A support frame 4 is fixedly connected to the end plate of the cylinder 1 near the feed inlet 2, and the support frame 4 is welded by a horizontal plate 41 and a pair of triangular ribs 42 vertically connected to the upper surface of the horizontal plate 41, and the triangular ribs 42 are respectively located on both sides of the horizontal plate 41. A driving device 5 is connected to the horizontal plate 41 by bolts, and the driving device 5 is fixedly connected to the rotating shaft 6 extending outward from the cylinder 1 through a coupling. The rotating shaft 6 is rotatably connected to the two end plates of the cylinder 1, and a group of crushing blades 61 are evenly distributed on the rotating shaft 6 inside the cylinder 1 along its axial direction. In this embodiment, the drive device 5 preferably adopts a variable frequency reduction motor, and the rotation speed of the rotating shaft 6 can be changed by adjusting the working frequency of the motor to adapt to different working conditions. In some structures, the rotating shaft 6 can be rotatably installed in a force-bearing form with two ends supported. Specifically, a seat bearing 62 can be set on the two end plates, and the rotating shaft 6 is installed in the seat bearing 62 at both ends. Of course, under some light load conditions, the rotating shaft 6 can also adopt a cantilever support structure, and the rotation support point can be close to one side of the drive device 5 to reduce the manufacturing cost of the device.

[0026] A hinge plate 7 is arranged at the left position of the bottom of the circumferential side wall of the cylinder 1. The hinge plate 7 is provided with a first hinge hole 71 which runs through the front-to-back direction. The first hinge hole 71 is hinged with the second hinge hole 91 of the support seat 9 through the pin 8. The support seat 9 is fixedly connected to the support plane. Here, the pin 8 has an axial limit function. For example, a split pin can be installed at the exposed end of the pin 8 to achieve axial limit. Of course, conventional structures such as shaft end clamps and pins can also be used to achieve the limit function. In some preferred schemes, the support seat 9 includes a bottom plate 92 and two support plates 93 connected to the bottom plate 92 with a certain distance between them. The hinge plate 7 is inserted between the two support plates 93 to form a limit, so that the hinge plate 7 can only swing in the vertical plane. In addition, reinforcing ribs 94 are also arranged on the outer sides of the two support plates 93. The support seat 9 with this structure can form a relatively stable structure, which can fully bear the weight of the cylinder 1 and its components. A hinge ear 10 is also provided on the cylinder 1 on the right side relative to the hinge plate 7. It should be noted that the hinge ear 10 is indirectly connected to the cylinder 1 by being connected to the support frame 4 in the figure, and can also be directly connected to the cylinder 1. The hinge ear 10 is hinged to the telescopic end of the linear reciprocating telescopic mechanism 11, and the fixed end of the linear reciprocating telescopic mechanism 11 is fixedly connected to the supporting plane through a mounting seat 12. The linear reciprocating telescopic mechanism 11 is configured as a light-loaded cylinder or a heavy-loaded oil cylinder according to the weight of the straw crushed each time by the device.

[0027] The driving device 5 of the device drives the rotating shaft 6 to rotate, so that the crushing blade 61 rotates at high speed to cut and crush the straw. At the same time, the cylinder 1 is pushed to swing back and forth in the vertical plane with the first hinge hole 71 as the center through the telescopic movement of the linear reciprocating telescopic mechanism 11, so that the crushed straw can always move back and forth in the left and right directions in the cylinder 1, preventing the straw material from accumulating in the dead corner area of ​​the cylinder 1, and at the same time fully increasing the number and duration of contact between the straw material and the crushing blade 61, thereby improving the straw crushing effect. The left and right reciprocating movement duration of the straw material can be achieved by adjusting the telescopic rate and working cycle of the linear reciprocating telescopic mechanism 11.

[0028] In order to further ensure that the size of the straw material discharged from the device meets the process requirements for biofuel production, the following method is used: Figure 4 The structure shown is as follows: the discharge port 3 includes a vertically arranged discharge pipe 31, a screen 32 is arranged in the discharge pipe 31, a vibration motor 33 is fixedly connected to the discharge pipe 31, and the vibration motor 33 works, and the exciting force generated is transmitted to the discharge pipe 31 and the screen 32, so that the straw crushed material that meets the particle size is vibrated and discharged from the device, and can be sent out through the induced draft device. The aperture of the screen 32 can be selected according to the specific process requirements. In addition, a valve (not shown in the figure) can also be set at the bottom of the discharge pipe 31 to control the on and off of the discharge pipe 31.

[0029] In order to optimize the stress state of the linear reciprocating telescopic mechanism 11 and reduce the additional force exerted by the upper structure of the device on the linear reciprocating telescopic mechanism 11, a relative weight balance can be made at both ends of the swing hinge point of the cylinder 1, as shown in the following example. Figure 5 As shown: the other end of the cylinder 1 relative to the driving device 5 is fixedly connected with a counterweight 13 for balancing the weight of the driving device 5. The counterweight 13 is provided with two mounting through holes 14, and fasteners 15 are inserted into the mounting through holes 14. The fasteners 15 are connected to the cylinder 1 to lock and fix the counterweight 13. Here, there can be multiple counterweights 13, which can be increased or decreased according to the driving devices 5 of different weights.

[0030] Considering the durability of the device and reducing the excessive wear of the equipment caused by crushing straw, a wear-resistant plate 16 is also provided on the inner wall of the cylinder 1. The shape of the wear-resistant plate 16 can be adaptively matched according to the shape of the inside of the cylinder 1. For example, the inner circumferential surface of the cylinder 1 is a petal-combined arc surface, and the two ends are corresponding annular plates. The wear-resistant plate 16 can be connected to the cylinder 1 by screws. Here, the wear-resistant plate 16 is made of NM450 material.

[0031] When the device is used, the preliminarily crushed straw is first put into the cylinder 1 through the feed port 2, the valve 21 is controlled to close the feed port 2, and then the drive device 5 and the linear reciprocating telescopic mechanism 11 are started simultaneously, so that the straw in the cylinder moves back and forth while being crushed, until the straw crushed material that meets the particle size requirements is discharged outside under the action of the vibrating screen 32, completing the straw crushing process.

[0032] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form; any technician familiar with the field can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the utility model without departing from the scope of the technical solution of the utility model, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A straw pulverizing device for producing biofuel, comprising a horizontally placed cylinder (1), the cylinder (1) being provided with a feed inlet (2) at the top and a discharge outlet (3) at the bottom, a rotating shaft (6) containing a crushing blade (61) being provided in the cylinder (1), one end of the rotating shaft (6) extending out of the cylinder (1) and connected to a driving device (5), and the driving device (5) being fixed on the cylinder (1); Features: A hinge plate (7) is provided on one side of the lower portion of the cylinder (1), and a first hinge hole (71) is provided on the hinge plate (7). The first hinge hole (71) is hingedly connected to a second hinge hole (91) of a support seat (9) via a pin shaft (8). A hinge ear (10) is provided on the other side of the lower portion of the cylinder (1), and the hinge ear (10) is hingedly connected to the telescopic end of the linear reciprocating telescopic mechanism (11). When the linear reciprocating telescopic mechanism (11) telescopes, it pushes the cylinder (1) to swing back and forth in a vertical plane with the first hinge hole (71) as the center of the circle.

2. A straw pulverizing device for producing biofuel according to claim 1, Features: Both ends of the rotating shaft (6) are rotatably connected to the cylinder (1) via seat bearings (62).

3. A straw pulverizing device for producing biofuel according to claim 1, Features: The driving device (5) is connected to the cylinder (1) via a support frame (4); the support frame (4) comprises a transverse plate (41) for connecting the driving device (5) and a pair of triangular ribs (42) vertically connected to the transverse plate (41); the transverse plate (41) and the triangular ribs (42) are connected together to an end plate of the cylinder (1).

4. A straw pulverizing device for producing biofuel according to claim 1, Features: The discharge port (3) comprises a discharge pipe (31), a screen (32) is provided in the discharge pipe (31), and a vibration motor (33) is fixedly connected to the discharge pipe (31).

5. A straw pulverizing device for producing biofuel according to claim 1 or 2, Features: A counterweight (13) for balancing the weight of the driving device (5) is fixedly connected to the other end of the cylinder (1) relative to the driving device (5).

6. A straw pulverizing device for producing biofuel according to claim 5, Features: The counterweight block (13) is provided with two mounting through holes (14), and fasteners (15) are inserted into the mounting through holes (14). The fasteners (15) are connected to the cylinder (1) to lock and fix the counterweight block (13).

7. A straw pulverizing device for producing biofuel according to claim 1, Features: A wear-resistant plate (16) is also provided on the inner wall of the cylinder (1).

8. A straw pulverizing device for producing biofuel according to claim 1, Features: The feed inlet (2) is also provided with a valve (21) that can be opened and closed.

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