Dry straw crusher

Abstract

The present invention relates to the field of anaerobic fermentation, and provides a dry straw crusher, including: a bag breaking device, a crushing device and a controller, wherein the bag breaking device is used to remove the outer packaging skin of the dry straw bag, and the crushing device is arranged below the bag breaking device; the controller is connected to the bag breaking device and the crushing device by signal. The crushing device includes a primary crushing mechanism and a secondary crushing mechanism connected in sequence from top to bottom; the primary crushing mechanism has a primary crushing platform and a bag pressing claw for fixing and pressing the dry straw bag, the bag pressing claw is arranged in pairs and hinged on both sides of the primary crushing platform; the secondary crushing mechanism has a silo and a secondary crushing chamber, the feed port of the silo is connected to the bottom of the primary crushing platform, and the secondary crushing chamber is connected to the discharge port of the silo. The dry straw crusher can not only realize the rapid crushing of dry straw, but also realize the automatic removal of the outer packaging skin of the dry straw bag.

Description

Technical Field

[0001] The invention relates to the field of anaerobic fermentation, in particular to a dry straw crusher. Background Art

[0002] Every summer harvest and autumn and winter, there is always a large amount of straw burning in the fields, producing a lot of heavy smoke, which has not only become a bottleneck problem for rural environmental protection, but also become the culprit that harms the urban environment. According to relevant statistics, as a large agricultural country, my country can generate more than 700 million tons of straw every year, so the treatment of these straws has become a major research direction in society. At present, anaerobic fermentation of dry straw is the main means of straw treatment. Before anaerobic fermentation of dry straw, the dry straw needs to be pre-treated by crushing, kneading, etc., but due to the light weight of dry straw, it is easy to float during the crushing process, which greatly reduces the crushing rate of dry straw by commonly used crushers. At the same time, the dry straw has been packaged, and its outer skin is wrapped, which needs to be removed before crushing, but the manual removal efficiency is low, and it is time-consuming and labor-intensive. Therefore, there is an urgent need for a dry straw crusher that can not only crush quickly, but also automatically remove the skin. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the present application provides a dry straw crusher, which can not only realize the rapid crushing of dry straw, but also realize the automatic removal of the outer packaging skin of the dry straw bale.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a dry straw pulverizer, comprising: a bag breaking device, a pulverizing device and a controller, wherein the bag breaking device is used to remove the outer packaging skin of the dry straw bag, and the pulverizing device is arranged below the bag breaking device; the controller is connected to the bag breaking device and the pulverizing device by signal;

[0006] Wherein, the pulverizing device comprises a primary pulverizing mechanism and a secondary pulverizing mechanism connected in sequence from top to bottom;

[0007] The primary crushing mechanism comprises a primary crushing platform and a bag pressing claw for fixing and pressing the dry straw bag, the bag pressing claw is arranged in pairs and hinged on both sides of the primary crushing platform; the secondary crushing mechanism comprises a silo and a secondary crushing chamber, the feed port of the silo is connected to the bottom of the primary crushing platform, and the secondary crushing chamber is connected to the discharge port of the silo.

[0008] Furthermore, the bag breaking device comprises a skin breaking mechanism and a skin removing mechanism;

[0009] The skin breaking mechanism is fixed beside the primary crushing platform to cut the outer skin of the dry straw bale;

[0010] The peeling mechanism comprises a slide rail, a winding shaft and a peeling knife. The slide rail is horizontally fixed above the primary crushing platform and is used to guide the reciprocating motion of the winding shaft. The winding shaft is rotatably connected to the slide rail, and the winding shaft also has sharp claws for winding around the outer packaging skin on the dry straw bale. The peeling knife is fixed beside the winding shaft and is used to cut off the outer packaging skin wound around the sharp claws.

[0011] Furthermore, the peeling mechanism also has a lifting motor for driving the winding shaft to make vertical movement, the lifting motor is slidably connected to the slide rail, and the winding shaft is dynamically connected to the lifting motor.

[0012] Furthermore, the peeling mechanism also has a rotating motor, which is dynamically connected to the winding shaft to provide power for the rotational movement of the winding shaft.

[0013] Furthermore, the bag breaking device also includes a bag clamping mechanism for feeding;

[0014] The clamping mechanism comprises a transport track and a clamping claw, wherein the transport track is horizontally arranged above the pressing claw, and the clamping claw is slidably connected to the transport track.

[0015] Furthermore, the skin breaking mechanism has a skin breaking knife, which is fixed between the grabbing point of the dry straw bale and the primary crushing platform. When the clamping claw grabs the dry straw bale and passes through the skin breaking knife, the skin breaking knife cuts the outer packaging skin of the dry straw bale.

[0016] Furthermore, the silo includes a lower hopper, a rotating silo body and a material pressing fork, the top edge of the lower hopper is connected to the bottom of the primary crushing platform, and the bottom edge of the lower hopper is connected to the top edge of the rotating silo body; the rotating silo body is rotatably connected to the secondary crushing chamber; there are multiple material pressing forks, and each of the material pressing forks is fixed on the inner wall of the rotating silo body along the radial direction of the rotating silo body.

[0017] Furthermore, a circle of water seal groove for sealing is provided on the top edge of the rotating bin body, and the bottom edge of the lower hopper is inserted into the water seal groove.

[0018] Furthermore, the silo is also provided with a rotary motor, which is dynamically connected to the rotating silo body to provide power for the rotational movement of the rotating silo body.

[0019] Furthermore, there are two secondary crushing chambers.

[0020] The technical solution provided by the embodiments of the present application has the following beneficial effects:

[0021] The primary crushing platform of the present invention is provided with paired pressing claws on both sides. The pressing claws not only limit the cylindrical dry straw bales to prevent them from rolling, but also apply pressure to the light dry straw bales, making them less likely to rebound during primary crushing, which is beneficial to the crushing work of the primary crushing platform and improves efficiency. At the same time, the silo connects the bottom of the primary crushing platform with the feed port of the secondary crushing chamber. As the primary crushing platform continuously discharges materials, the silo pressure also continues to increase, effectively solving the floating problem that the dry straw is prone to occur during the crushing process, so that the feeding speed and crushing efficiency of the secondary crushing chamber are also greatly improved. In addition, the present invention is provided with a bag breaking device for removing the outer packaging skin of the dry straw, eliminating the cumbersome process of manual peeling. The present invention is also provided with a controller connected to the bag breaking device and the crushing device signal, which provides convenience for realizing the automatic operation of the dry straw crusher. The embodiment of the present invention has a simple overall structure, low cost, and small space occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0024] Figure 2 It is a structural schematic diagram of a primary crushing mechanism according to an embodiment of the present invention;

[0025] Figure 3 It is a structural schematic diagram of a secondary crushing mechanism of an embodiment of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a secondary crushing mechanism of an embodiment of the present invention;

[0027] Figure 5 is a schematic structural diagram of a peeling mechanism according to an embodiment of the present invention;

[0028] Figure 6 It is a schematic structural diagram of a bag clamping mechanism according to an embodiment of the present invention.

[0029] 1. Bag breaking device; 11. Skin breaking mechanism; 12. Skin peeling mechanism; 121. Slide rail; 122. Winding shaft; 123. Lifting motor; 124. Rotating motor; 13. Bag clamping mechanism; 131. Transport track; 132. Bag clamping claw; 2. Crushing device; 21. Primary crushing mechanism; 211. Primary crushing platform; 212. Bag pressing claw; 22. Secondary crushing mechanism; 221. Material bin; 222. Secondary crushing chamber; 2211. Lower hopper; 2212. Rotating bin body; 2213. Material pressing fork; 2214. Water seal groove; 2215. Rotating motor; 3. Sealing cover; 4. Dry straw bag. DETAILED DESCRIPTION

[0030] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of methods and devices consistent with some aspects of the present application as detailed in the appended claims.

[0031] like Figure 1 , 2 As shown, an embodiment of the present invention provides a dry straw crusher, comprising: a bag breaking device 1, a crushing device 2 and a controller, wherein the bag breaking device 1 is used to remove the outer packaging skin of the dry straw bag 4, and the crushing device 2 is arranged below the bag breaking device 1; the controller is signal-connected to the bag breaking device 1 and the crushing device 2.

[0032] Specifically, the pulverizing device 2 includes a primary pulverizing mechanism 21 and a secondary pulverizing mechanism 22 connected in sequence from top to bottom, wherein the primary pulverizing mechanism 21 has a primary pulverizing platform 211 and a bag pressing claw 212 for fixing and pressing the dry straw bag 4, wherein the bag pressing claw 212 is arranged in pairs and is hinged on both sides of the primary pulverizing platform 211. The secondary pulverizing mechanism 22 has a silo 221 and a secondary pulverizing chamber 222, wherein the feed port of the silo 221 is communicated with the bottom of the primary pulverizing platform 211, and the secondary pulverizing chamber 222 is communicated with the discharge port of the silo 221.

[0033] Compared with the prior art, the primary crushing platform 211 of the embodiment of the invention is provided with a pair of pressing claws 212 on both sides. The pressing claws 212 not only limit the cylindrical dry straw bales 4 to prevent them from rolling, but also exert pressure on the light dry straw bales 4, which are not easy to rebound during primary crushing, which is beneficial to the crushing work of the primary crushing platform 211 and improves efficiency. At the same time, the silo 221 connects the bottom of the primary crushing platform 211 with the feed port of the secondary crushing chamber 222. As the primary crushing platform 211 continues to discharge materials, the pressure of the silo 221 also continues to increase, effectively solving the floating problem that dry straw is prone to occur during the crushing process, so that the feeding speed and crushing efficiency of the secondary crushing chamber 222 are also greatly improved, and the embodiment of the present invention has a simple structure, low cost and small space occupation. At the same time, the embodiment of the present invention is also provided with a bag breaking device 1 for removing the outer packaging skin of dry straw, eliminating the cumbersome process of manual peeling. In addition, the embodiment of the present invention is further provided with a controller which is signal-connected to the bag breaking device 1 and the crushing device 2, which facilitates the automatic operation of the dry straw crusher.

[0034] Furthermore, if Figure 1 , 5 As shown, the bag breaking device 1 of this embodiment also includes a skin breaking mechanism 11 and a skin removing mechanism 12, wherein the skin breaking mechanism 11 is fixed to the side of the primary crushing platform 211, and is used to pre-cut the outer skin of the dry straw bag 4 to facilitate the subsequent skin removing process. The skin removing mechanism 12 has a slide rail 121, a winding shaft 122 and a skin removing knife, and the slide rail 121 is horizontally fixed above the primary crushing platform 211, and is used to guide the reciprocating motion of the winding shaft 122. The winding shaft 122 is rotatably connected to the slide rail 121 and has sharp claws, which are used to wrap the outer skin of the dry straw bag 4 through the rotational motion after contacting the dry straw bag 4. The skin removing knife is fixed to the side of the winding shaft 122, and is used to cut the outer skin wrapped on its sharp claws.

[0035] Specifically, when a dry straw bale 4 is fixed on the primary crushing platform 211, the skin breaking mechanism 11 will pre-cut the outer skin of the dry straw bale 4; then the winding shaft 122 is guided by the slide rail 121 to move above the dry straw bale 4, and contact the dry straw bale 4, and wind the outer skin on the dry straw bale 4 onto the sharp claws through self-rotation; thereafter, the winding shaft 122 wrapped with the outer skin returns under the guidance of the slide rail 121, at which time the winding shaft 122 will pass through the peeling knife arranged beside it, the peeling knife contacts the winding shaft 122, and cuts the outer skin wrapped around the sharp claws; finally, the winding shaft 122 rotates again, throws off the cut outer skin, and prepares to work for the next peeling process, the entire peeling process does not require manual intervention and can operate continuously.

[0036] At the same time, in some embodiments, in order to better control the movement of the winding shaft 122, a lifting motor 123 is preferably slidably connected to the slide rail 121, and the lifting motor 123 is connected to the winding shaft 122 to drive the winding shaft 122 to move up and down. Specifically, when the winding shaft 122 moves horizontally to the top of the dry straw bag 4, the lifting motor 123 controls it to descend and contact the dry straw bag 4. After the winding is completed, the lifting motor 123 controls it to rise again to avoid the sharp claws winding the dry straw and affecting the return journey. In addition, in order to provide the winding shaft 122 with rotation power, it is also preferably connected to the winding shaft 122 with a rotating motor 124.

[0037] Furthermore, if Figure 1 , 6 As shown, the bag breaking device 1 of the embodiment of the invention also includes a bag clamping mechanism 13 for feeding, wherein the bag clamping mechanism 13 has a transport track 131 and a bag clamping claw 132, the transport track 131 is horizontally arranged above the bag pressing claw 212, the bag clamping claw 132 is slidably connected with the transport track 131, and the dry straw bag 4 is grasped and placed on the primary crushing platform 211 through the transport track 131. At the same time, the skin breaking mechanism 11 also has a skin breaking knife fixed between the grasping point of the dry straw bag 4 and the primary crushing platform 211, when the bag clamping claw 132 grasps the dry straw bag 4 and passes through the skin breaking knife, the skin breaking knife will cut the outer packaging skin of the dry straw bag 4 as the dry straw bag 4 moves.

[0038] As shown in Figures 3 and 4, the silo 221 of the embodiment of the present invention includes a lower hopper 2211, a rotating silo body 2212, and a pressing fork 2213, wherein the top edge of the lower hopper 2211 is connected to the bottom of the primary crushing platform 211, and the bottom edge is connected to the top edge of the rotating silo body 2212, the rotating silo body 2212 is connected to a rotary motor 2215, and can be rotatably connected to the secondary crushing chamber 222, and there are multiple pressing forks 2213, each of which is fixed on the inner wall of the rotating silo body 2212 along the radial direction of the rotating silo body 2212. Specifically, the pressing fork 2213 has a certain inclination, and when the rotating silo body 2212 rotates, the pressing fork 2213 will exert a downward component force on the dry straw in the rotating silo body 2212, further promoting the feeding speed of the secondary crushing chamber 222 to improve the crushing efficiency, and at the same time, it also plays a role in stirring the materials in the rotating silo body 2212 to avoid uneven accumulation of dry straw.

[0039] like Figure 4 As shown, in some embodiments, a circle of water seal groove 2214 for sealing is preferably provided on the top edge of the rotating bin body 2212, and the bottom edge of the lower hopper 2211 is inserted into the water seal groove 2214 to prevent dry straw dust from overflowing and polluting the factory environment.

[0040] like Figure 4As shown, in some embodiments, in order to further improve the crushing efficiency, two secondary crushing chambers 222 are preferably provided under one silo 221 .

[0041] like Figure 1 As shown, since the entire pulverizing process does not require human intervention, in some embodiments, the dry straw pulverizer is preferably also provided with a sealing cover 3 to prevent the pulverized dry straw from causing dust pollution.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0043] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A dry straw crusher, It is characterized in that include: A bag breaking device, a crushing device and a controller, wherein the bag breaking device is used to remove the outer packaging skin of the dry straw bag, and the crushing device is arranged below the bag breaking device; the controller is connected to the bag breaking device and the crushing device by signal; Wherein, the pulverizing device comprises a primary pulverizing mechanism and a secondary pulverizing mechanism connected in sequence from top to bottom; The primary crushing mechanism comprises a primary crushing platform and a pressing claw for fixing and pressing the dry straw bale, the pressing claws are arranged in pairs and are hinged on both sides of the primary crushing platform; the secondary crushing mechanism comprises a silo and a secondary crushing chamber, the feed inlet of the silo is connected to the bottom of the primary crushing platform, and the secondary crushing chamber is connected to the discharge port of the silo; The bag breaking device comprises a skin breaking mechanism and a skin removing mechanism; The skin breaking mechanism is fixed beside the primary crushing platform to cut the outer skin of the dry straw bale; The peeling mechanism is arranged on one side of the crushing device, and the crushing device is located between the peeling mechanism and the peeling mechanism in the transverse direction of the dry straw bag conveying, and the peeling mechanism has a slide rail, a winding shaft and a peeling knife, the slide rail is horizontally fixed above the primary crushing platform, and is used to guide the reciprocating motion of the winding shaft; the winding shaft can be rotatably connected to the slide rail, and the winding shaft also has sharp claws for winding the outer packaging skin on the dry straw bag; the peeling knife is fixed beside the winding shaft, and is used to cut off the outer packaging skin wound on the sharp claws. When a dry straw bale with its outer packaging pre-cut by the skin-breaking mechanism is fixed on the primary crushing platform, the winding shaft is guided by the slide rail and moves to the top of the dry straw bale, and the outer packaging skin of the dry straw bale is wound around the sharp claws through self-rotation. The winding shaft wrapped with the outer packaging skin returns under the guidance of the slide rail. During the return process, the winding shaft passes through the peeling knife, and the peeling knife contacts the winding shaft and cuts the outer packaging skin wrapped on the sharp claws. Finally, the winding shaft rotates again to throw off the cut outer packaging skin.

2. The dry straw pulverizer according to claim 1, It is characterized in that The peeling mechanism also has a lifting motor for driving the winding shaft to make vertical movement. The lifting motor is slidably connected to the slide rail, and the winding shaft is dynamically connected to the lifting motor.

3. The dry straw pulverizer according to claim 1, It is characterized in that The peeling mechanism also has a rotating motor, which is dynamically connected to the winding shaft to provide power for the rotation of the winding shaft.

4. The dry straw pulverizer according to claim 1, It is characterized in that The bag breaking device also includes a bag clamping mechanism for feeding; The clamping mechanism comprises a transport track and a clamping claw, wherein the transport track is horizontally arranged above the pressing claw, and the clamping claw is slidably connected to the transport track.

5. The dry straw pulverizer according to claim 4, It is characterized in that The skin-breaking mechanism has a skin-breaking knife, which is fixed between the grabbing point of the dry straw bale and the primary crushing platform. When the bag clamping claw grabs the dry straw bale and passes through the skin-breaking knife, the skin-breaking knife cuts the outer packaging skin of the dry straw bale.

6. The dry straw pulverizer according to claim 1, It is characterized in that The silo includes a lower hopper, a rotating silo body and a material pressing fork. The top edge of the lower hopper is connected to the bottom of the primary crushing platform, and the bottom edge of the lower hopper is connected to the top edge of the rotating silo body. The rotating silo body is rotatably connected to the secondary crushing chamber. There are multiple material pressing forks, and each of the material pressing forks is fixed on the inner wall of the rotating silo body along the radial direction of the rotating silo body.

7. The dry straw pulverizer according to claim 6, It is characterized in that The top edge of the rotating bin body is provided with a circle of water seal groove for sealing, and the bottom edge of the lower hopper is inserted into the water seal groove.

8. The dry straw pulverizer according to claim 6, It is characterized in that The silo is also provided with a rotary motor, which is dynamically connected to the rotating silo body to provide power for the self-rotation of the rotating silo body.

9. The dry straw pulverizer according to claim 6, It is characterized in that There are two secondary crushing chambers.

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