阅读说明：本技术 配套生产生物质颗粒燃料的烟草秸秆二次粉碎机 (Tobacco straw secondary crusher matched with biomass granular fuel production ) 是由 韦凤杰 范艺宽 张同庆 苏新宏 王建安 赵世民 陈彦春 王勇军 马京民 李建华 于 2019-10-23 设计创作，主要内容包括：本发明属于烟草秸秆粉碎设备技术领域,具体涉及一种降低能耗、优化粉碎的配套生产生物质颗粒燃料的烟草秸秆二次粉碎机,包括固定底座、动力马达、竖直固定支架、粉碎室；所述粉碎室分为初次粉碎室和二次粉碎室,初次粉碎室内设置有一次粉碎装置,初次粉碎室开设有第一定向进料口和下料口；二次粉碎室内设置有二次粉碎装置,二次粉碎室开设有第二定向进料口和第二出料口,下料口与第二定向进料口连通,一次粉碎装置、二次粉碎装置均通过传动带与动力马达连接；本装置是专门的烟秆粉碎机,使之粉碎后满足生物质成型颗粒燃料设备挤压成型造粒的需要,同时对设备优化成二次破碎构造,在降低能耗消耗的同时,实现快速的烟草秸秆粉碎。(The invention belongs to the technical field of tobacco straw crushing equipment, and particularly relates to a secondary crushing machine for tobacco straws, which is matched with biomass granular fuel production and has the advantages of reducing energy consumption and optimizing crushing, wherein the secondary crushing machine comprises a fixed base, a power motor, a vertical fixed support and a crushing chamber; the crushing chamber is divided into a primary crushing chamber and a secondary crushing chamber, a primary crushing device is arranged in the primary crushing chamber, and the primary crushing chamber is provided with a first directional feed inlet and a feed outlet; a secondary crushing device is arranged in the secondary crushing chamber, the secondary crushing chamber is provided with a second directional feed inlet and a second discharge outlet, the feed opening is communicated with the second directional feed inlet, and the primary crushing device and the secondary crushing device are both connected with a power motor through a transmission belt; the device is a special tobacco stalk crusher, meets the requirement of extrusion forming granulation of biomass forming granular fuel equipment after crushing, optimizes the equipment into a secondary crushing structure, reduces energy consumption and simultaneously realizes quick crushing of tobacco stalks.)

1. A tobacco straw secondary crusher matched with production of biomass granular fuel comprises a fixed base (4), a power motor (3) arranged on the fixed base (4), a vertical fixed support (1) arranged on the fixed base (4), and a crushing chamber arranged on the inner side of the vertical fixed support (1); the method is characterized in that: the crushing chamber is divided into a primary crushing chamber (6) and a secondary crushing chamber (2), a primary crushing device is arranged in the primary crushing chamber (6), and the primary crushing chamber (6) is provided with a first directional feed inlet (18) and a feed outlet (15); be provided with the secondary crushing device in secondary crushing room (2), the directional feed inlet of second and second discharge gate (16) have been seted up in secondary crushing room (2), feed opening (15) and the directional feed inlet intercommunication of second, primary crushing device, secondary crushing device all are connected with power motor (3) through the drive belt.

2. The secondary crusher of tobacco straw for producing biomass pellet fuel as claimed in claim 1, is characterized in that: the fixing base (4) is arranged to be in a hollow rectangular shape at intervals, and grooves with trapezoidal sections are formed in the left side and the right side of the fixing base (4).

3. The secondary crusher of tobacco straw for producing biomass pellet fuel as claimed in claim 1, is characterized in that: the primary crushing chamber (6) is a hollow cylindrical cylinder, the cylinder is horizontally arranged along an axis, a first directional feed port (18) is formed in the upper portion of one end face of the cylinder, the head of the feed channel (5) is fixedly installed on the first directional feed port (18), and the tail of the feed channel (5) is arranged in a suspended mode and provided with a feed port (17); the central position of the two end faces of the primary crushing chamber (6) is provided with a connecting through hole, a bearing is arranged in the through hole, a first wheel shaft (10) is installed on the bearing, a first wheel shaft belt wheel (7) is installed at one end of the first wheel shaft (10), a motor belt wheel (12) is installed on an output shaft of a power motor, a first transmission belt (11) is installed between the first wheel shaft belt wheel (7) and the motor belt wheel (12), the power motor (3) drives the first wheel shaft (10) to rotate by means of the first transmission belt (11), a primary crushing device is arranged in the middle of the first wheel shaft (10) in a penetrating mode, and the other end of the first wheel shaft (10) is installed on a vertical fixing support (1) through the bearing.

4. The secondary crusher of tobacco straw for producing biomass pellet fuel as claimed in claim 3, is characterized in that: the feed channel (5) is obliquely arranged on the first directional feed opening (18), and the outermost end of the feed channel is a flared opening.

5. The secondary crusher of tobacco straw for producing biomass pellet fuel as claimed in claim 3, is characterized in that: the motor belt wheel (12) is provided with a plurality of belt wheel grooves and drives two belts simultaneously.

6. The secondary crusher of tobacco straw for producing biomass pellet fuel as claimed in claim 3, is characterized in that: be provided with the first crushing blanking storehouse of extension connection at first crushing room (6) downside, the first crushing blanking storehouse is hopper-shaped opening cover in first crushing room (6) lower part, the cuboid that upper portion of first crushing blanking storehouse is for having four sides of upper and lower open-ended and enclose, the lower part of first crushing blanking storehouse is for the trapezoidal body that falls that has the bottom surface with the switch-on of cuboid end opening, feed opening (15) of first crushing room (6) are just to the inside of first crushing blanking storehouse, first discharge gate (19) have still been seted up on the trapezoidal body side of first crushing blanking storehouse lower part, first discharge gate (19) correspond with the directional feed inlet position of second of secondary crushing room (2) and communicate with each other, first crushing room (6) and the equal fixed mounting of first crushing blanking storehouse are on vertical fixed bolster (1).

7. The secondary crusher of tobacco straw for producing biomass pellet fuel as claimed in claim 3, is characterized in that: the primary crushing device comprises fixed rotor seats (9), fixing rods (21), crushing steel sheets (22), slicing sheets (23) and a wheel disc (24), wherein the fixed rotor seats (9) are in a five-pointed star shape, a connecting through hole is formed in the center of each fixed rotor seat (9), a first wheel shaft (10) is arranged in each connecting through hole, the number of the fixed rotor seats (9) arranged on each first wheel shaft (10) is two, a space is formed between the fixed rotor seats and the wheel shafts, a connecting hole is also formed in the sharp corner of each fixed rotor seat (9), the fixing rods (21) are arranged in the connecting holes, and two ends of each fixing rod (21) are respectively arranged in the connecting holes in the sharp corners of the two fixed rotor seats (9); a plurality of crushing steel sheets (22) in different directions are sleeved on the fixing rod (21), the crushing steel sheets (22) are rectangular plates with through holes at two ends, the through holes at the head parts of the crushing steel sheets penetrate through the fixing rod (21), and the tail parts of the crushing steel sheets (22) are suspended in the air; still the cover is equipped with rim plate (24) on first shaft (10), rim plate (24) set up the inboard at fixed rotor seat (9), the grooving has been seted up on the circumference and the surface of rim plate (24), and through-hole screw fixedly connected with in the grooving is the section (23) of different inclination.

8. The secondary crusher of tobacco straw for producing biomass pellet fuel as claimed in claim 6, is characterized in that: the secondary crushing chamber (2) is hollow and cylindrical, a discharge hole is formed in the bottom corner of the side face of the secondary crushing chamber, the discharge hole is fixedly connected with the head of the discharge channel, and the tail of the discharge channel is suspended and provided with a second discharge hole (16); a second directional feed inlet is formed in the side face of the secondary crushing chamber (2), connecting through holes are formed in the center positions of the two side faces of the secondary crushing chamber (2) and the corresponding positions of the primary crushing blanking bin, one end of a second wheel shaft (14) is installed in the connecting through hole in one side of the secondary crushing chamber (2) through a bearing, the other end of the second wheel shaft (14) is installed in the connecting through hole in one side of the primary crushing blanking bin through a bearing, a second wheel shaft (8) is installed at the end part of the second wheel shaft (14) penetrating through the secondary crushing chamber (2) and the primary crushing blanking bin, and a second transmission belt (13) is installed between the second wheel shaft (8) and the motor belt wheel (12); a secondary crushing device is sleeved on a second wheel shaft (14) in the secondary crushing chamber (2).

9. The secondary crusher of tobacco straw for producing biomass pellet fuel as claimed in claim 8, wherein: the secondary crushing device is a crushing plate device and comprises a connecting pipe arranged at the center and crushing plates (20) fixed on the connecting pipe, wherein a second wheel shaft (14) is installed on the connecting pipe, and the crushing plates (20) are a plurality of metal plates which are in a transmitting shape and are uniformly and alternately fixedly installed on the outer side of the connecting pipe.

Technical Field

The invention belongs to the technical field of tobacco straw crushing equipment, and particularly relates to a secondary crushing machine for tobacco straws, which is matched with biomass granular fuel production and has the advantages of reducing energy consumption and optimizing crushing.

Background

The tobacco straw is the largest byproduct in the planting and production of the flue-cured tobacco, and accounts for about 50 percent of the biological yield. The content of the lignocellulose in the tobacco stalk exceeds 55 percent, and the tobacco stalk is a good agricultural stalk fuel. People count and plant 3 mu tobacco field and can satisfy the baking of 1 mu tobacco leaf, and the tobacco leaf planting method is a rich resource which can coexist with the tobacco leaf planting perpetuality. China is the largest country for flue-cured tobacco production in the world, and the total amount of flue-cured tobacco straws per year is about 1.5 million tons according to statistical data.

In recent two years, along with the attention of people on environmental management, various governments at all levels have developed measures for controlling emission of fire coal, and the application of clean energy to tobacco leaf baking is encouraged, so that the heat supply of fire coal flue-cured tobacco gradually enters the end sound in the prior art. The biomass fuel in various clean energy sources is considered as the first choice for replacing the biomass fuel at present, the production of the biomass molded granular fuel needs to pass through the processes of crushing → extrusion → molding and the like, wherein the crushing of the tobacco leaves and straws is an indispensable key link in the process of producing the biomass molded granular fuel.

The biomass briquette fuel is produced by utilizing the tobacco straws, and proper crushing equipment is needed to crush the tobacco straws. The crushing equipment in the aspect of agriculture is mostly used for processing animal roughage and crushing grain in the market at present, a cutting type crushing, hammer type crushing, kneading type crushing and combined type crushing mechanical structure exists, the performance and the structure of the interior of various equipment are different, certain specificity is realized for crushing each agricultural product, the problems of low production efficiency, high energy consumption and incapability of well adapting to wet or high-toughness straw materials in the process of crushing other types of straws exist, and the machine is easily blocked.

Chinese patent No. 201120527931.9 discloses a small tobacco stalk crusher, which comprises a frame, a shell, a feed hopper and a discharge port, wherein the feed hopper and the discharge port are connected with the shell; the rotor assembly comprises three rotor disks which are coaxially fixed on a rotor shaft, a plurality of hammer head shafts which are connected in series on the three rotor disks are arranged along the periphery of the rotor disks by taking the rotor shaft as the axis, and a plurality of hammers which are axially limited are arranged on the hammer head shafts; the inner cavity wall of the upper shell is a smooth surface; the rotor shaft is driven by a power machine through a belt, and the rotor shaft is characterized in that two friction layers are arranged on an inner cavity of the upper shell above the junction surface of the upper shell and the lower shell, the first friction layer is positioned in a first main striking area of materials formed by a feeding part of the upper shell and a rotor assembly, and the second friction layer and the first friction layer are correspondingly positioned in a second main striking area of the materials on the other side of the upper shell; the device only increases the number of hammers by using hammer sheet type crushing, and also has the defects of the prior art.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides a special secondary tobacco straw pulverizer which is matched with biomass granular fuel production and is designed according to the internal structure and material characteristics of tobacco straw, so that the pulverized tobacco straw secondary pulverizer meets the extrusion molding and granulation requirements of biomass molding granular fuel equipment, the equipment is optimized into a secondary crushing structure, the energy consumption is reduced, and the rapid pulverization of the tobacco straw is realized.

In order to achieve the purpose, the invention provides the following technical scheme:

a tobacco straw secondary crusher matched with production of biomass granular fuel comprises a fixed base, a power motor arranged on the fixed base, a vertical fixed support arranged on the fixed base, and a crushing chamber arranged on the inner side of the vertical fixed support; the crushing chamber is divided into a primary crushing chamber and a secondary crushing chamber, a primary crushing device is arranged in the primary crushing chamber, and the primary crushing chamber is provided with a first directional feed inlet and a feed outlet; the secondary crushing chamber is internally provided with a secondary crushing device, the secondary crushing chamber is provided with a second directional feed inlet and a second discharge outlet, the first discharge outlet is communicated with the second directional feed inlet, and the primary crushing device and the secondary crushing device are connected with a power motor through a transmission belt.

Preferably, the fixed base is set to be a hollow cuboid shape at intervals, and grooves with trapezoidal sections are formed in the left side and the right side of the fixed base.

Preferably, the primary crushing chamber is a hollow cylindrical cylinder, the cylinder is horizontally arranged along an axis, a first directional feed port is formed in the upper part of one end face of the cylinder, the head of the feed channel is fixedly mounted on the first directional feed port, and the tail of the feed channel is arranged in a suspended manner and provided with the feed port; the central position of the two end faces of the primary crushing chamber is provided with a connecting through hole, a bearing is arranged in the through hole, a first wheel shaft is arranged on the bearing, a first wheel shaft belt wheel is arranged at one end of the first wheel shaft, a motor belt wheel is arranged on an output shaft of a power motor, a first transmission belt is arranged between the first wheel shaft belt wheel and the motor belt wheel, the power motor drives the first wheel shaft to rotate by the aid of the first transmission belt, a primary crushing device is arranged in the middle of the first wheel shaft in a penetrating mode, and the other end of the first wheel shaft is arranged on a vertical fixing support through the bearing.

Preferably, the feed channel is installed on the first directional feed inlet in an inclined shape, and the outermost end is an open-shaped opening of a trumpet shape.

Preferably, the motor belt wheel is provided with a plurality of belt wheel grooves, and two belts are driven simultaneously.

Preferably, be provided with the first crushing blanking storehouse of lengthened connection at first crushing room downside, the first crushing blanking storehouse is hopper-shaped opening cover in first crushing room lower part, the cuboid that four sides of first crushing blanking storehouse upper portion for having upper and lower open-ended enclose, the lower part of first crushing blanking storehouse is for the trapezoidal body that falls that has the bottom surface with the switch-on of cuboid end opening, the feed opening of first crushing room is just to the inside of first crushing blanking storehouse, first discharge gate has still been seted up on the trapezoidal body side of falling of first crushing blanking storehouse lower part, first discharge gate corresponds with the directional feed inlet position of second of secondary crushing room and communicates with each other, first crushing room and the equal fixed mounting of first crushing blanking storehouse are on vertical fixed bolster.

Preferably, the primary crushing device comprises a fixed rotor seat, a fixing rod, a crushing steel sheet, a slice and a wheel disc, wherein the fixed rotor seat is in a five-pointed star shape, a connecting through hole is formed in the center of the fixed rotor seat, a first wheel shaft is arranged in the connecting through hole, the number of the fixed rotor seats fixedly arranged on the first wheel shaft is two, a space is formed between the fixed rotor seat and the fixed rotor seat, a connecting hole is also formed in the sharp corner of the fixed rotor seat, the fixing rod is arranged in the connecting hole, and two ends of the fixing rod are respectively arranged in the connecting holes at the sharp corners of the two fixed rotor seats; the fixing rod is sleeved with a plurality of crushing steel sheets in different directions, the crushing steel sheets are rectangular plates with through holes at two ends, the through holes at the head part of the crushing steel sheets penetrate through the fixing rod, and the tail parts of the crushing steel sheets are suspended in the air; still the cover is equipped with the rim plate on first shaft, the rim plate sets up the inboard at fixed rotor seat, the circumference and the surperficial grooving of having seted up of rim plate, through-hole screw fixedly connected with different inclination's section in the grooving.

Preferably, the secondary crushing chamber is hollow cylindrical, a discharge port is formed in the bottom corner of the side face of the secondary crushing chamber, the discharge port is fixedly connected with the head of the discharge channel, and the tail of the discharge channel is suspended and provided with a second discharge port; a second directional feed inlet is formed in the side face of the secondary crushing chamber, a connecting through hole is formed in the center position of the two side faces of the secondary crushing chamber and the corresponding position of the primary crushing blanking bin, one end of a second wheel shaft is installed in the connecting through hole in one side of the secondary crushing chamber through a bearing, the other end of the second wheel shaft is installed in the connecting through hole in one side of the primary crushing blanking bin through a bearing, a second wheel shaft penetrates through the secondary crushing chamber and the end of the primary crushing blanking bin and is provided with a second wheel belt wheel, and a second transmission belt is installed between the second wheel belt wheel and a motor belt wheel; the second wheel shaft in the secondary crushing chamber is sleeved with a secondary crushing device.

Preferably, the secondary crushing device is a crushing plate device, and comprises a connecting pipe arranged at the central position and a crushing plate 20 fixed on the connecting pipe, wherein the connecting pipe is provided with a second wheel shaft 14, and the crushing plate 20 is a plurality of metal plates which are uniformly and alternately fixedly arranged on the outer side of the connecting pipe and are in a transmitting shape.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, a special tobacco stem pulverizer is designed according to the botanical characteristics of tobacco stems with high lower half content of lignocellulose and low lower half content of the lignocellulose by using the characteristics of a chopping type pulverizer, a rubbing type pulverizer and a hammer type pulverizer for reference, firstly, a secondary pulverizing structure is adopted, coarse pulverization is carried out in a pulverizing chamber by adopting a cutting and rubbing type pulverizing mode, fine pulverization is carried out in a pulverizing chamber by adopting a hammer type pulverizing structure, a motor drives bearings in two pulverizing chambers, the rotation speed is controlled and distributed through the radius of wheel shafts, tobacco stems with the water content of below 20 percent collected from tobacco fields are rapidly, efficiently and with low energy consumption, the particle size of pulverized particles accords with the diameter of biomass molded particle fuel with the diameter of 0.8-1.2 mm, and the pulverized tobacco stems with high lignocellulose content such as cotton, soybean, pepper and the like can also be pulverized by using the straw with the lignocellulose content of the cotton.

Drawings

FIG. 1 is a schematic view of the overall structure of a secondary crusher for tobacco straw produced by matching biomass briquette fuel of the present invention.

FIG. 2 is a view showing the internal structure of the primary crushing of the secondary crusher for tobacco straw produced by biomass briquette of the present invention.

FIG. 3 is a secondary crushing internal structure diagram of the secondary crusher for tobacco straw produced by matching with biomass briquette fuel of the present invention.

FIG. 4 is a diagram of a crushing component of a primary crushing device of a secondary crusher for tobacco straw produced by matching biomass briquette fuel of the invention.

In the figure: 1. erecting a fixed support; 2. a secondary crushing chamber; 3. a power motor; 4. a fixed base; 5. a feed channel; 6. a primary crushing chamber; 7. a first axle pulley; 8. a second pulley; 9. a fixed rotor base; 10. a first axle; 11. a first drive belt; 12. a motor pulley; 13. a second belt; 14. a second wheel axle; 15. a feeding port; 16. a second discharge port; 17. a feed inlet; 18. a first directional feed port; 19. a first discharge port; 20. a crushing plate; 21. fixing the rod; 22. crushing a steel sheet; 23. a cutter; 24. a wheel disc.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-4, in embodiment 1, a secondary crusher for tobacco straw matched with production of biomass pellet fuel comprises a fixed base 4, a power motor 3 installed on the fixed base 4, a vertical fixed support 1 installed on the fixed base 4, and a crushing chamber arranged inside the vertical fixed support 1; the crushing chamber is divided into a primary crushing chamber 6 and a secondary crushing chamber 2, a primary crushing device is arranged in the primary crushing chamber 6, and the primary crushing chamber 6 is provided with a first directional feed inlet 18 and a feed outlet 15; be provided with the secondary crushing device in the secondary crushing room 2, the directional feed inlet of second and second discharge gate 16 have been seted up to secondary crushing room 2, feed opening 15 and the directional feed inlet of second intercommunication, primary crushing device, secondary crushing device all are connected with power motor 3 through the drive belt.

Referring to fig. 1-4, in embodiment 2, a secondary crusher for tobacco straw matched with production of biomass pellet fuel comprises a fixed base 4, a power motor 3 installed on the fixed base 4, a vertical fixed support 1 installed on the fixed base 4, and a crushing chamber arranged inside the vertical fixed support 1; the crushing chamber is divided into a primary crushing chamber 6 and a secondary crushing chamber 2, a primary crushing device is arranged in the primary crushing chamber 6, and the primary crushing chamber 6 is provided with a first directional feed inlet 18 and a feed outlet 15; be provided with the secondary crushing device in the secondary crushing room 2, the directional feed inlet of second and second discharge gate 16 have been seted up to secondary crushing room 2, feed opening 15 and the directional feed inlet of second intercommunication, primary crushing device, secondary crushing device all are connected with power motor 3 through the drive belt. Unable adjustment base 4 sets up to the cuboid form of interval fretwork, and 4 left and right sides of unable adjustment base all offer the cross-section for trapezoidal recess.

The primary crushing chamber 6 is a hollow cylindrical cylinder, the cylinder is horizontally arranged along an axis, a first directional feed port 18 is formed in the upper part of one end face of the cylinder, the head of the feed channel 5 is fixedly mounted on the first directional feed port 18, and the tail of the feed channel 5 is arranged in a suspended mode and provided with a feed port 17, which is a separation schematic diagram in the figure; a connecting through hole is arranged at the center of two end faces of the primary crushing chamber 6, a bearing is arranged in the through hole, a first wheel shaft 10 is arranged on the bearing, a first wheel shaft belt wheel 7 is arranged at one end of the first wheel shaft 10, a motor belt wheel 12 is arranged on an output shaft 12 of a power motor, a first transmission belt 11 is arranged between the first wheel shaft belt wheel 7 and the motor belt wheel 12, the power motor) drives the first wheel shaft 10 to rotate by the first transmission belt 11, a primary crushing device is arranged in the middle of the first wheel shaft 10 in a penetrating mode, and the other end of the first wheel shaft 10 is arranged on the vertical fixing support 1 through the bearing.

The feed channel 5 is mounted obliquely to the first directional feed opening 18 and has an open mouth at the outermost end in the shape of a "trumpet".

The motor pulley 12 has a plurality of pulley grooves for simultaneously driving two belts.

First crushing blanking storehouse that 6 downside in first crushing room was provided with the extension and connects, first crushing blanking storehouse is hopper-shaped opening cover in first crushing 6 lower parts in first crushing room, the cuboid that upper portion of first crushing blanking storehouse is enclosed for four sides that have upper and lower open-ended, the lower part of first crushing blanking storehouse is for the trapezoidal body that falls that has the bottom surface with the switch-on of cuboid end opening, first crushing 6's feed opening 15 is just to the inside of first crushing blanking storehouse, first discharge gate 19 has still been seted up on the trapezoidal body side of falling of first crushing blanking storehouse lower part, first discharge gate 19 corresponds with the directional feed inlet position of second of secondary crushing room 2 and communicates with each other, first crushing room 6 and the equal fixed mounting of first crushing blanking storehouse are on vertical fixed bolster 1.

The primary crushing device comprises a fixed rotor seat 9, a fixing rod 21, a crushing steel sheet 22, a slice 23 and a wheel disc 24, wherein the fixed rotor seat 9 is in a five-pointed star shape, a connecting through hole is formed in the center of the fixed rotor seat 9, a first wheel shaft 10 is arranged in the connecting through hole, the number of the fixed rotor seats 9 arranged on the first wheel shaft 10 is two, a space is arranged between the fixed rotor seats and the fixed rotor seats, a connecting hole is also formed in the sharp corner of the fixed rotor seat 9, the fixing rod 21 is arranged in the connecting hole, and two ends of the fixing rod 21 are respectively arranged in the connecting holes in the sharp corner of the two fixed rotor seats 9; the fixing rod 21 is sleeved with a plurality of crushing steel sheets 22 in different directions, the crushing steel sheets 22 are rectangular plates with through holes at two ends, the through holes at the head parts of the crushing steel sheets pass through the fixing rod 21, and the tail parts of the crushing steel sheets 22 are suspended in the air; the first wheel shaft 10 is further sleeved with a wheel disc 24, the wheel disc 24 is arranged on the inner side of the fixed rotor seat 9, cutting grooves are formed in the circumference and the surface of the wheel disc 24, and the cutting grooves are fixedly connected with the slices 23 with different inclination angles through holes and screws.

The secondary crushing chamber 2 is hollow cylindrical, a discharge hole is formed in the bottom corner of the side face of the secondary crushing chamber, the discharge hole is fixedly connected with the head of a discharge channel, and the tail of the discharge channel is suspended and provided with a second discharge hole 16; a second directional feed inlet is formed in the side surface of the secondary crushing chamber 2, a connecting through hole is formed in the center position of each of the two side surfaces of the secondary crushing chamber 2 and the corresponding position of the primary crushing blanking bin, one end of a second wheel shaft 14 is installed in the connecting through hole in one side of the secondary crushing chamber 2 through a bearing, the other end of the second wheel shaft 14 is installed in the connecting through hole in one side of the primary crushing blanking bin through a bearing, a second wheel shaft belt wheel 8 is installed at the end part, penetrating through the secondary crushing chamber 2 and the primary crushing blanking bin, of the second wheel shaft 14, and a second transmission belt 13 is installed between the second wheel belt wheel 8 and the motor belt wheel 12; a secondary crushing device is sleeved on the second wheel shaft 14 in the secondary crushing chamber 2.

The secondary crushing device is a crushing plate device and comprises a connecting pipe arranged at the center and a crushing plate 20 fixed on the connecting pipe, a second wheel shaft 14 is installed on the connecting pipe, and the crushing plate 20 is a plurality of metal plates which are uniformly and alternately fixedly installed on the outer side of the connecting pipe and are in a transmitting shape.

According to the invention, a special tobacco stem pulverizer is designed according to the botanical characteristics of tobacco stems with high lower half content of lignocellulose and low lower half content of the lignocellulose by using the characteristics of a chopping type pulverizer, a rubbing type pulverizer and a hammer type pulverizer for reference, firstly, a secondary pulverizing structure is adopted, coarse pulverization is carried out in a pulverizing chamber by adopting a cutting and rubbing type pulverizing mode, fine pulverization is carried out in a pulverizing chamber by adopting a hammer type pulverizing structure, a motor drives bearings in two pulverizing chambers, the rotation speed is controlled and distributed through the radius of wheel shafts, tobacco stems with the water content of below 20 percent collected from tobacco fields are rapidly, efficiently and with low energy consumption, the particle size of pulverized particles accords with the diameter of biomass molded particle fuel with the diameter of 0.8-1.2 mm, and the pulverized tobacco stems with high lignocellulose content such as cotton, soybean, pepper and the like can also be pulverized by using the straw with the lignocellulose content of the cotton.

The tobacco stalks are smoothed to pass through the designed feed inlet 17 and reach the first directional feed inlet 18 through the feed channel 5, the tobacco stalks are cut into small sections at the first directional feed inlet 18 when encountering the cutter 23 on the wheel disc 24 rotating at high speed, collide and rebound towards the outer wall of the primary crushing chamber 6 under the action of centrifugal force, then collide with the crushing steel sheet 22 rotating at high speed to obtain primary coarse crushing, and then fall along the discharge opening 15; the falling materials enter the secondary crushing chamber 2 through the second directional feed inlet under the drive of negative pressure, the crushing plate 20 rotating at high speed collides with the materials to crush the tobacco stalk materials again, and finally, the crushed materials fly out along the second discharge outlet 16 under the action of pressure to finish the crushing of the tobacco stalks.

The fixed rotor base 9 and the disc 24 are fixed to the first hub 10 while the fixing bar 21 is fixed to the rotor base 9, and the pulverized steel sheet 22 is rotated around the fixing bar 21 in a circumferential square 360 ° when the apparatus is operated.

The whole crushing power is borne by a power motor 3, and a first wheel shaft 10 and a second wheel shaft 14 are connected with an output shaft of the power motor 3 through a first transmission belt 11 and a second transmission belt 13 to provide power.

While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.