Scattering and feeding device for compacting straw

Abstract

The scattering and feeding device comprises a fixed base and a stock bin, the stock bin comprises a funnel section and a straight barrel section which are sequentially connected from top to bottom and communicate with each other, a feeding port is formed in the top of the funnel section, the bottom end of the straight barrel section is arranged on the fixed base, and a discharging port is formed in the straight barrel section; the scattering and feeding device for compacting the straw further comprises a rotating roller, the bottom of the rotating roller is rotatably connected to the fixed base, the top of the rotating roller penetrates through the straight barrel section and extends into the funnel section, more than two shifting teeth are arranged on the peripheral face of the rotating roller, part of the shifting teeth are located in the funnel section, and the other shifting teeth are located in the straight barrel section. And the radially extending peripheries of the shifting teeth in the funnel section exceed the periphery of the straight barrel section. Under the action of the funnel section, the straight barrel section, the rotating roller and the shifting teeth, the scattering space is large, the resistance is small, the scattering of the compacted straws is realized, the straws are uniformly fed under the action of centrifugal force, gravity and collision rebound force between the straws and the inner wall of the straight barrel section, the blockage is not easy to occur, the failure rate is low, and the energy consumption is low.

Description

Technical Field

[0001] The invention relates to the field of straw storage and processing equipment, and in particular to a scattering and feeding device for compacting straw. Background Art

[0002] The cost of straw is mainly reflected in the collection, storage and transportation stages. In order to save storage and transportation costs, straw is packed into high-density round or square bales for storage and transportation. High-density baling makes it very difficult to break up the straw when using it.

[0003] The current processing method is to unbundle the baled straw first, and then use a machine to grab it into the feeder bin. The Chinese utility model patent "A straw feeding device", with patent application number 202223202632.5 (publication number CN 218618856 U) discloses a straw feeding device, which mainly completes the straw feeding by setting a conveying mechanism, a grass feeding mechanism, a kneading mechanism, a hanging curtain, etc., but this device has high requirements on the length and looseness of the straw. Longer straw (more than 30cm) is easily kneaded into silk under the action of the kneading mechanism, and entangled in the kneading mechanism, causing the kneading mechanism to block the material; furthermore, the compacted straw is easy to cause the kneading mechanism to damage the teeth, causing equipment failure. Therefore, it is very necessary and urgent to develop a high-density baled straw loosening feeding device. Summary of the invention

[0004] The invention provides a compacted straw scattering and feeding device.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a compacted straw scattering and feeding device, which comprises a fixed base and a silo, and is characterized in that the silo comprises a funnel section and a straight tube section which are sequentially connected from top to bottom and communicate with each other, a feed inlet is arranged at the top of the funnel section, the bottom end of the straight tube section is arranged on the fixed base, and a discharge port is arranged on the straight tube section;

[0007] The compacted straw scattering and feeding device also includes a roller, the bottom of which is rotatably connected to the fixed base, and the top of which passes through the straight tube section and extends into the funnel section;

[0008] More than two shifting teeth are arranged on the outer circumference of the rotating roller, some of the shifting teeth are located in the funnel section, and the other shifting teeth are located in the straight tube section, and the radially extending outer circumference of the shifting teeth located in the funnel section exceeds the outer circumference of the straight tube section.

[0009] In this scheme, the funnel section provides a larger rotating and breaking space for the roller, with less rotating resistance, and enables the compacted straw to better contact with the roller of the funnel section under its own gravity, so that the breaking effect is better and the breaking speed is faster. The shifting teeth in the funnel section can rotate relative to the funnel section under the drive of the roller, so that the compacted straw entering the funnel section is broken up. The broken up straw gradually falls to the straight tube section, and the shifting teeth of the straight tube section rotate relative to the straight tube section under the drive of the roller, continue to break up the straw and enable the broken up straw to be evenly fed to the discharge port under the action of centrifugal force, gravity, and the collision rebound force between the inner wall of the straight tube section. The radially extended outer periphery of the shifting teeth in the funnel section exceeds the outer periphery of the straight tube section, so that the compacted straw can achieve a longer and more complete effect in the funnel section and the shifting teeth, so that the straw breaking effect is good, and it is not easy to directly fall into the turning point between the funnel section and the straight tube section or even into the straight tube section to cause blockage or even damage the device. The combined effect of the funnel section, the straight tube section and the rollers and teeth inside the two make the entire device simple in structure. It can not only break up the compacted straw, but also achieve uniform feeding without clogging, low failure rate and low energy consumption.

[0010] Preferably, the shape of the shifting teeth is square, triangle or rhombus.

[0011] In this solution, the shape of the shifting teeth is square, triangle or rhombus, and the structure is simple.

[0012] Preferably, the shifting teeth are evenly spaced around the periphery of the rotating roller.

[0013] In this scheme, the teeth of the funnel section are evenly spaced along the outer circumference of the rotating roller, so that the teeth of the funnel section can disperse the straw more evenly, which is conducive to the even falling of the dispersed straw to the straight tube section. The teeth of the straight tube section are evenly spaced along the outer circumference of the rotating roller, so that the teeth of the straight tube section can evenly feed the material to the discharge port. The evenly falling straw can achieve a better and more evenly transported effect under the action of the teeth of the straight tube section, which is convenient for subsequent processing.

[0014] Preferably, the shifting teeth are arranged in multiple layers along the axial direction of the rotating roller, and the shifting teeth on at least two layers are arranged in sequence and spaced apart in the vertical direction.

[0015] In this solution, the shifting teeth on at least two layers are arranged in sequence and spaced apart in the vertical direction, so that material is not easily accumulated between the shifting teeth, thereby ensuring better breaking up and conveying effects and reducing the failure rate of the equipment.

[0016] Preferably, the shifting teeth are perpendicular to the surface of the rotating roller.

[0017] In this solution, the teeth are perpendicular to the surface of the rotating roller, so that the spaced areas between the teeth are easy to discharge materials and not easy to be blocked, thereby ensuring the breaking effect.

[0018] Preferably, the top of the roller is conical and not higher than the top of the silo.

[0019] In this scheme, the conical top of the roller allows the compacted straw bale to fall along the roller axis under its own gravity when entering the funnel section, and the straw bale is dispersed to the surroundings under the rotation of the roller, and can also be broken up by the force of the teeth at the same time, with a good breaking effect. The top of the roller is not higher than the top of the silo, so that the compacted straw can be simultaneously affected by the funnel section, the roller and the teeth when entering the silo, with a high breaking efficiency.

[0020] Preferably, the funnel section, the straight cylinder section and the rotating roller are coaxially arranged.

[0021] In this scheme, the funnel section, the straight tube section and the rotating roller are coaxially arranged, so that the rotating roller has a larger rotation space in the funnel section and the straight tube section. In the funnel section, the straw is dropped and scattered more evenly in all directions, and the effect is good. In the straight tube section, the distance between the shifting teeth and the straight tube section is equivalent, which is conducive to uniform discharge.

[0022] Preferably, the discharge port is arranged on the side wall of the straight tube section, and the discharge port extends downward into the fixed base.

[0023] In this solution, the discharge port is arranged on the side wall of the straight section, so that the teeth of the roller feed in the centrifugal direction during the rotation, the feeding is smooth, and it is not easy to be blocked, and the discharge of the discharge port is not easy to interfere with the rotation of the roller. The discharge port extends downward into the fixed base, so that the straw can be fed under its own gravity, combined with the centrifugal feeding of the teeth, the feeding efficiency is high and the feeding is smooth.

[0024] Preferably, a conveying mechanism is provided in the fixed base, and an input end of the conveying mechanism is communicated with the discharge port.

[0025] In this solution, the conveying mechanism is arranged in the fixed base, so that the conveying mechanism can work better and will not interfere with the work of other structures. Such an arrangement, combined with the discharge port extending downward, makes the conveying efficiency higher.

[0026] Preferably, the compacted straw breaking and feeding device also includes a driving mechanism and a transmission mechanism, the driving mechanism and the transmission mechanism are arranged in the fixed base, the lower part of the roller is passed through the fixed base and is rotatably connected to the output end of the transmission mechanism, and the input end of the transmission mechanism is connected to the output end of the driving mechanism.

[0027] In this solution, the driving mechanism and the transmission mechanism are both arranged in a fixed base, so that the working environment of both is stable, the working space is large, and the working stability of the roller is guaranteed.

[0028] Preferably, the top diameter of the funnel section is 1.5-3.5 m;

[0029] And / or, the bottom diameter of the funnel section is 0.8-1.5m;

[0030] And / or, the height of the funnel section is 1-3m.

[0031] In this solution, the funnel section contracts from top to bottom and inward, providing a larger rotation and breaking space for the roller, with less rotation resistance, and allowing the compacted straw to better contact with the roller of the funnel section under its own gravity, so that the breaking effect is better and the breaking speed is faster.

[0032] Preferably, the rotation speed of the roller is 15-60 rpm;

[0033] And / or, the distance between the shifting tooth at the bottom of the straight tube section and the fixed base is less than 10 cm;

[0034] And / or, the diameter of the straight tube section is 0.8-1.5m;

[0035] And / or, the height of the straight tube section is 20-40 cm.

[0036] In this solution, the distance between the bottom teeth of the straight tube section and the fixed base is less than 10cm, which ensures the continuous breaking and conveying of the straw in the straight tube section, and prevents the distance between the two from being too large, which may cause material accumulation on the inner wall, and the distance from the two from being too small, which may cause easy blockage. The height of the straight tube section is 20-40cm, which meets the space for breaking and conveying the straw.

[0037] Preferably, the average density of the compacted straw is 130-170 kg / L.

[0038] In this solution, the average density of the compacted straw is 130-170 kg / L, and better dispersing and conveying effects are achieved in the compacted straw dispersing and feeding device.

[0039] Preferably, the shifting teeth are arranged in 2-6 layers along the axial direction of the rotating roller;

[0040] And / or, the number of the shifting teeth in each layer is 3-6.

[0041] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0042] The positive and progressive effect of the present invention is that: in the present invention, the funnel section provides a larger rotating and breaking space for the roller, the rotating resistance is small, and the compacted straw is better contacted with the roller of the funnel section under its own gravity, so that the breaking effect is better and the breaking speed is faster. The picking teeth in the funnel section can rotate relative to the funnel section under the drive of the roller, so that the compacted straw entering the funnel section is broken. The broken straw gradually falls to the straight tube section, and the picking teeth of the straight tube section rotate relative to the straight tube section under the drive of the roller, continue to break up the straw and make the broken straw be uniformly fed to the discharge port under the action of centrifugal force, gravity, and the collision rebound force between the inner wall of the straight tube section. The radially extended outer periphery of the picking teeth in the funnel section exceeds the outer periphery of the straight tube section, so that the compacted straw can achieve a longer time and more sufficient effect in the funnel section and the picking teeth, so that the straw breaking effect is good, and it is not easy to directly fall into the turning point between the funnel section and the straight tube section or even in the straight tube section to cause blockage or even damage the device. The combined effect of the funnel section, the straight tube section and the rollers and the teeth inside the two make the whole device simple in structure, which can not only break up the compacted straw, but also realize uniform feeding without clogging, low failure rate and low energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic structural diagram of the dispersing and feeding device for compacting straw of the present invention.

[0044] Description of reference numerals:

[0045] Fixed base 1

[0046] Silo 2

[0047] Funnel segment 21

[0048] Straight section 22

[0049] Conveying mechanism 3

[0050] Roller 4

[0051] Transmission mechanism 5

[0052] Discharge port 6

[0053] Tooth 7

[0054] Driving mechanism 8

[0055] Bracket 9 DETAILED DESCRIPTION

[0056] The present invention will be described more clearly and completely below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

[0057] The present invention discloses a compacted straw scattering and feeding device, which comprises a fixed base 1 and a silo 2. Figure 1As shown, the silo 2 includes a funnel section 21 and a straight section 22 which are sequentially connected and interconnected from top to bottom, a feed port is provided at the top of the funnel section 21, the bottom end of the straight section 22 is provided on the fixed base 1, and a discharge port 6 is provided at the straight section 22;

[0058] The compacted straw scattering and feeding device also includes a roller 4, the bottom of which is rotatably connected to the fixed base 1, and the top of which passes through the straight tube section 22 and extends into the funnel section 21;

[0059] More than two shifting teeth 7 are arranged on the outer circumference of the rotating roller 4 , some of the shifting teeth 7 are located in the funnel section 21 , and other shifting teeth 7 are located in the straight tube section 22 . The radially extending outer circumference of the shifting teeth 7 located in the funnel section 21 exceeds the outer circumference of the straight tube section 22 .

[0060] Specifically, the funnel section 21 is in the shape of a cone shell that gradually shrinks from top to bottom and inward, with a top diameter of 2.5m, a bottom diameter of 1m, and a height of 1.5m. The straight tube section 22 is in the shape of a cylindrical shell, with a diameter of 1m and a height of 30cm. It is connected to the lower end of the funnel section 21, and the two are internally connected. The two are designed as one body, and this connection method makes the two more stable during work. The fixed base 1 is in the shape of a shell, and the lower end of the straight tube section 22 is welded to the upper surface of the fixed base 1, which can stabilize the working environment of the straight tube section 22. The diameter of the roller 4 is 65cm, and the roller 4 is rotatably connected to the upper surface of the fixed base 1 in the straight tube section 22, so that the roller 4 can drive the shifting teeth 7 to rotate in the funnel section 21 and the straight tube section 22. One roller 4 can achieve the effect of breaking up and conveying, with low energy consumption and simple structure. The funnel section 21 provides a large rotation and breaking space for the roller 4 and the pull teeth 7, with a small rotation resistance, and enables the compacted straw to better contact with the roller 4 and the pull teeth 7 of the funnel section 21 under its own gravity, so that the breaking effect is better and the breaking speed is faster. The roller 4 in the funnel section 21 drives the pull teeth 7 to rotate relative to the funnel section 21, so that the compacted straw entering the funnel section 21 is broken up. The broken up straw gradually falls toward the straight tube section 22, and the roller 4 of the straight tube section 22 drives the pull teeth 7 to rotate relative to the straight tube section 22, so that the straw is further broken up and the broken up straw is evenly fed to the discharge port 6 under the action of centrifugal force, gravity, and the collision rebound force between the inner wall of the straight tube section 22. The combined effect of the funnel section 21, the straight tube section 22 and the rollers 4 therein makes the entire device simple in structure, which can not only break up the compacted straw, but also achieve uniform feeding without clogging, low failure rate and low energy consumption.

[0061] The radially extending outer periphery of the teeth 7 in the funnel section 21 exceeds the outer periphery of the straight section 22, which means that the downward projection of the teeth 7 in the funnel section 21 exceeds the outer periphery of the straight section 22, that is, the outer edge of the teeth 7 exceeds the outer wall of the straight section 22. Such a configuration enables the compacted straw to work longer between the funnel section 21 and the teeth 7, so that the straw is dispersed effectively, and is not easy to directly fall into the turning point between the funnel section 21 and the straight section 22 or even into the straight section 22 to cause blockage or even damage the device.

[0062] In operation, the raw material is corn stalks, which are packed in square bales, each bale weighing more than 300kg and with an average density of 157kg / L. The square bales of stalks are stacked in sheets with a thickness of 28-32cm and tied with nylon ropes. After being unbundled manually, they are scattered into sheets with a thickness of 28-32cm. The stalks are placed in the funnel section 21 by a grass grabber, and the grass grabbing mechanism is a prior art and will not be described in detail here.

[0063] In an alternative embodiment, the funnel section 21 and the straight tube section 22 can be detachably connected, and a horizontal bend portion can be radially extended in the circumferential direction of the lower end edge of the funnel section 21, and a horizontal bend portion can be radially extended in the circumferential direction of the corresponding position of the upper end edge of the straight tube section 22. The two bend portions are connected by threads. In this way, the two can be replaced separately, which is convenient for maintenance.

[0064] In this embodiment, the shape of the shifting teeth 7 is a square, triangular or diamond block, and the structure is simple. The shifting teeth 7 of the funnel section 21 are triangular, specifically an isosceles triangle, and the bottom side is assembled with the surface of the roller 4. The shifting teeth 7 of the straight tube section 22 are square, and the long side is assembled with the surface of the roller 4. In other embodiments, the shifting teeth 7 of the funnel section 21 can also be square or diamond, and the shifting teeth 7 of the straight tube section 22 can be triangular or diamond, and of course other shapes, such as round, can also be used.

[0065] In this embodiment, the shifting teeth 7 are evenly spaced around the outer circumference of the rotating roller 4 .

[0066] Specifically, on the same periphery, the teeth 7 are evenly spaced in the circumferential direction. The teeth 7 of the funnel section 21 are evenly spaced along the periphery of the roller 4, so that the teeth 7 of the funnel section 21 can disperse the straw more evenly, which is conducive to the even falling of the dispersed straw to the straight tube section 22. The teeth 7 of the straight tube section 22 are evenly spaced along the periphery of the roller 4, so that the teeth 7 of the straight tube section 22 can evenly feed the straw toward the discharge port 6. The evenly falling straw can achieve a better and more even conveying effect under the action of the teeth 7 of the straight tube section 22, which is convenient for subsequent processing. The spacing between the teeth 7 at the bottom of the straight tube section 22 and the fixed base 1 is 2-3cm. If it is too large, it will cause material accumulation at the bottom, and if it is too small, it will easily block the material. Of course, the spacing between the teeth 7 at the bottom and the inner wall of the straight tube section 22 and the fixed base 1 can be adjusted according to the size and looseness of the straw bale.

[0067] The teeth 7 of this embodiment are arranged in two layers from top to bottom. Four teeth 7 are arranged in the upper layer, which are evenly distributed in the circumference of the roller 4 and located in the funnel section 21. Each tooth 7 is an isosceles triangle and is perpendicular to the surface of the roller 4. The bottom side of the triangular teeth 7 is assembled with the surface of the rotating rod 4. The waist length of the triangle is 20 cm. The vertical distance between the teeth 7 and the surface of the rotating rod 4 is 40 cm, and the thickness is 5 cm. Four teeth 7 are arranged in the lower layer, which are evenly distributed in the circumference of the roller 4 and located in the straight tube section 22. Each tooth 7 is square in shape. The teeth 7 are perpendicular to the surface of the roller 4. The length of the long side of the teeth 7 is 18 cm, the thickness is 5 mm, the vertical distance between the teeth 7 and the surface of the rotating rod 4 is 10 cm, and the long side of the teeth 7 is assembled with the surface of the rotating rod. At the same time, a tooth 7 of the lower layer is arranged in the middle and lower position of two adjacent teeth 7 of the upper layer, so that the teeth 7 of the upper layer and the lower layer can be arranged in an interlaced interval along the circumference of the rotating roller 4.

[0068] In this embodiment, the shifting teeth 7 are perpendicular to the surface of the rotating roller 4 .

[0069] Specifically, the vertical surface of the teeth 7 is perpendicular to the surface of the roller 4, so that the spaced area between the teeth 7 is easy to discharge materials and not easy to be blocked, thereby ensuring the breaking effect. The teeth 7 and the roller 4 can be detachably connected, and mounting grooves corresponding to the number of teeth 7 can be vertically arranged on the roller 4, and the teeth 7 are embedded in the mounting grooves, and wedges can be inserted between the mounting grooves and the teeth 7 for fixation.

[0070] In this embodiment, the top of the roller 4 is conical and is not higher than the top of the silo 2 .

[0071] Specifically, the top of the roller 4 is conical, with the tip facing upward. Combined with the conical top of the roller 4, it can be slightly lower than the top of the silo 2 or flush with the top of the silo 2, so that when the compacted straw bale enters the funnel section 21, the straw bale can fall along the axial direction of the roller 4 under the action of its own gravity, and the straw bale is dispersed to the surroundings under the rotation of the roller 4, and can also be broken up under the action of the pull teeth 7 at the same time, with a good breaking effect.

[0072] In an alternative embodiment, the top of the rotating roller 4 is in a sharp shape, with the tip facing upward, and is in a triangular or other sharp shape.

[0073] In this embodiment, the funnel section 21, the straight cylinder section 22 and the rotating roller 4 are coaxially arranged.

[0074] Specifically, the funnel section 21, the straight tube section 22 and the roller 4 are coaxially arranged, so that the roller 4 has a larger rotation space in both the funnel section 21 and the straight tube section 22. In the funnel section 21, the straw is dropped and scattered more evenly in all directions, and the effect is good. In the straight tube section 22, the distance between the shifting teeth 7 and the straight tube section 22 is quite large, which is conducive to uniform discharge.

[0075] In this embodiment, the discharge port 6 is disposed on the side wall of the straight tube section 22 , and the discharge port 6 extends downward into the fixed base 1 .

[0076] Specifically, the height of the discharge port 6 at one end of the side wall of the straight section 22 is 30 cm, and the width is 60 cm. The discharge port 6 extends downward at 45 degrees, and the bottom is 50 cm below the fixed base 1. The top of the discharge port 6 is 30 cm away from the top surface of the fixed base 1. The discharge port 6 is arranged on the side wall of the straight section 22 away from the driving mechanism 8 and the transmission mechanism 5 mentioned later, and the output end of the downward extension section of the discharge port 6 is lower than the fixed base 1 and is located inside the fixed base 1. Such an arrangement facilitates the discharge of straw and the arrangement of the conveying mechanism 3, and is not easy to interfere with the driving mechanism 8 and the transmission mechanism 5. The discharge port 6 is arranged on the side wall of the straight section 22, so that the teeth 7 of the roller 4 feed in the centrifugal direction during the rotation process, and the feeding is smooth and not easy to be blocked. In addition, the discharge of the discharge port 6 is not easy to interfere with the rotation of the roller 4. The discharge port 6 extends downward into the fixed base 1, so that the straw can be fed under its own gravity. Combined with the centrifugal feeding of the shifting teeth 7, the feeding efficiency is high and the feeding is smooth.

[0077] In this embodiment, a conveying mechanism 3 is disposed in the fixed base 1 , and an input end of the conveying mechanism 3 is communicated with the discharge port 6 .

[0078] Specifically, the input end of the conveying mechanism 3 faces the discharge port 6. The conveying mechanism 3 adopts a belt conveyor with a speed of 2m / s. The output end of the discharge port 6 faces the input end of the belt conveyor. The belt conveyor is used for stable feeding, and the conveying efficiency of the conveying mechanism 3 must not be less than the discharge efficiency of the discharge port 6, so as to avoid excessive accumulation of straw on the belt conveyor to block the discharge port 6, causing equipment failure and affecting the operation of the entire device. The conveying mechanism 3 is arranged in the fixed base 1, so that the conveying mechanism 3 can work better and will not interfere with the operation of other structures. Such a setting, combined with the discharge port 6 extending downward, makes the conveying efficiency higher.

[0079] In this embodiment, the compacted straw breaking and feeding device also includes a driving mechanism 8 and a transmission mechanism 5, which are arranged in a fixed base 1, and the lower part of the roller 4 is passed through the fixed base 1 and is rotatably connected to the output end of the transmission mechanism 5, and the input end of the transmission mechanism 5 is connected to the output end of the driving mechanism 8.

[0080] Specifically, the driving mechanism 8 can be set as a motor, and a bracket 9 is set in the fixed base 1 to place the motor. The transmission mechanism 5 is a turbine shaft and a turbine. A turbine fixedly connected to the roller 4 is set at the bottom, and the turbine shaft cooperates with the turbine. The motor drives the turbine shaft to rotate, and the turbine shaft transmits power to the turbine to drive the roller 4 to rotate. This method has stable transmission and low energy consumption. The driving mechanism 8, the transmission mechanism 5, and the bracket 9 are all set in the fixed base 1, with a compact structure, which makes the working environment stable and the working space large, ensuring the working stability of the roller 4.

[0081] The motor adopts a variable frequency motor, and the speed of the roller 4 is controlled by adjusting the motor frequency, thereby controlling the production capacity. The motor adopts a 5.5kw, 4-pole motor, and the speed of the roller 4 is controlled by the motor to be 30rpm. The straw is quickly broken up by the action of the teeth 7 on the roller 4, and the discharge density is 45-55kg / L. The average discharge is 9t per hour, and it can achieve continuous operation for 8 hours without failure. Finally, it is sent to the subsequent section (such as a crusher, which is crushed into fine particles for entering the biorefining section) by a belt conveyor.

[0082] Two dust removal devices can be provided at the output end of the funnel section 21 and the discharge port 6 to remove dust generated during the straw breaking process and the conveying process as well as dust carried by the straw, which is beneficial to the subsequent production and use of the straw. The dust removal device can be in the shape of a round tube shell, the top end of which is connected to the outside and a fan is provided on the channel. One of the dust removal device covers is provided above the funnel section 21, and dust is removed by rotating the fan, and a feed port is provided between the bottom end of the dust removal device and the funnel section 21. The bottom end of the other dust removal device faces the output end of the discharge port 6 and the straw transfer area of ​​the conveying mechanism 3, and dust is removed by rotating the fan.

[0083] As a comparison with the above embodiments, when the vertex of the triangular tooth 7 is at a smaller vertical distance from the surface of the roller 4, so that the radially extended outer circumference of the tooth 7 in the funnel section 21 is 5 cm smaller than the outer circumference of the straight section 22, the discharging effect of the compacted straw scattering feeding device is poor: the same straw is fed, the discharge density is 70-100 kg / L, and the average discharge is 5 t per hour, which can achieve 8 hours of trouble-free operation. Due to the small discharge volume and uneven discharge, the continuous processing capacity of the subsequent equipment is affected, affecting the overall production efficiency.

[0084] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A compacted straw scattering and feeding device, comprising a fixed base and a silo, characterized in that: The silo comprises a funnel section and a straight tube section which are sequentially connected from top to bottom and communicate with each other, the top of the funnel section is provided with a feed inlet, the bottom end of the straight tube section is provided on the fixed base, and the straight tube section is provided with a discharge port; The compacted straw scattering and feeding device also includes a roller, the bottom of which is rotatably connected to the fixed base, and the top of which passes through the straight tube section and extends into the funnel section; More than two shifting teeth are arranged on the outer circumference of the rotating roller, some of the shifting teeth are located in the funnel section, and the other shifting teeth are located in the straight tube section, and the radially extending outer circumference of the shifting teeth located in the funnel section exceeds the outer circumference of the straight tube section.

2. The compacted straw scattering and feeding device according to claim 1, characterized in that: The shape of the shifting teeth is square, triangle or rhombus.

3. The compacted straw scattering and feeding device according to claim 1, characterized in that: The shifting teeth are evenly spaced and distributed around the outer circumference of the rotating roller.

4. The compacted straw scattering and feeding device according to claim 1, characterized in that: The shifting teeth are arranged in multiple layers along the axial direction of the rotating roller, and the shifting teeth on at least two layers are arranged in sequence and spaced apart in the vertical direction.

5. The compacted straw scattering and feeding device according to claim 1, characterized in that: The shifting teeth are perpendicular to the surface of the rotating roller.

6. The compacted straw scattering and feeding device according to claim 1, characterized in that: The top of the rotating roller is conical and is not higher than the top of the silo.

7. The compacted straw scattering and feeding device according to claim 1, characterized in that: The funnel section, the straight cylinder section and the rotating roller are coaxially arranged.

8. The compacted straw scattering and feeding device according to claim 1, characterized in that: The discharge port is arranged on the side wall of the straight tube section, and the discharge port extends downward into the fixed base.

9. The compacted straw scattering and feeding device according to claim 8, characterized in that: A conveying mechanism is arranged in the fixed base, and an input end of the conveying mechanism is communicated with the discharge port.

10. The compacted straw scattering and feeding device according to claim 1, characterized in that: The compacted straw breaking and feeding device also includes a driving mechanism and a transmission mechanism, which are arranged in the fixed base, the lower part of the roller is inserted into the fixed base and is rotatably connected to the output end of the transmission mechanism, and the input end of the transmission mechanism is connected to the output end of the driving mechanism.

11. The compacted straw scattering and feeding device according to claim 1, characterized in that: The top diameter of the funnel section is 1.5-3.5m; And / or, the bottom diameter of the funnel section is 0.8-1.5m; And / or, the height of the funnel section is 1-3m.

12. The compacted straw scattering and feeding device according to claim 1, characterized in that: The rotating speed of the roller is 15-60 rpm; And / or, the distance between the shifting tooth at the bottom of the straight tube section and the fixed base is less than 10 cm; And / or, the diameter of the straight tube section is 0.8-1.5m; And / or, the height of the straight tube section is 20-40 cm.

13. The compacted straw scattering and feeding device according to claim 1, characterized in that: The average density of the compacted straw is 130-170 kg / L.

14. The compacted straw scattering and feeding device according to claim 4, characterized in that: The shifting teeth are arranged in 2-6 layers along the axial direction of the rotating roller; And / or, the number of the shifting teeth in each layer is 3-6.

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