阅读说明：本技术 酱香酒制曲废弃稻草制生物质燃料颗粒的方法及系统 (Method and system for preparing biomass fuel particles from waste straws in sauce-flavor liquor starter preparation ) 是由 余朝静 钟音亮 杨胜林 肖遥 徐同伟 沈仕巡 于 2020-07-28 设计创作，主要内容包括：本发明公开了一种酱香酒制曲废弃稻草制生物质燃料颗粒的方法及系统,该方法将酱香酒制曲废弃稻草采用一系列工艺程序,即分别通过破碎,干燥灭菌和排湿后,再制成颗粒,并最终形成产品,本发明是一种酱香酒制曲废弃稻草资源化利用的重要方式,既可以减少对环境的污染及资源的浪费,同时所制得的生物质燃料颗粒作为电厂发电原料或酒厂蒸酒所用蒸汽的燃料能带来一定的收益,同时该系统结构简单,操作方便,实用性强。(The invention discloses a method and a system for preparing biomass fuel particles from waste straws of sauce-flavor liquor distiller's yeast, wherein the method adopts a series of process procedures for preparing the waste straws of the sauce-flavor liquor distiller's yeast, namely, the waste straws are respectively crushed, dried, sterilized and dehumidified and then are prepared into particles, and finally the particles form products.)

1. A method for preparing biomass fuel particles from waste straws in yeast preparation by sauce-flavor liquor is characterized by comprising the following steps: the method comprises the steps of conveying waste straws used for making the sauce-flavor liquor into a straw crusher (1) through a straw feeding hole (102) for crushing; the crushed straws are conveyed into a continuous microwave dryer (2) for continuous drying and conveying, wherein a heating pipe (203) is arranged in a drying chamber (204) to dry and sterilize the crushed straws, the water content of the crushed straws is reduced from the initial 50-60 percent to 10-15 percent suitable for granulation, and a heat discharging chamber (205)) is used for finishing heat discharging and moisture discharging; the dried crushed and dried straws are conveyed into a flat die granulator (4) through a crushed straw partition conveyor (3), and uniformly fall into a granulating chamber under the action of a feeding scraper (407), the crushed and dried straws are pressed into granules under the action of a compression roller (408) and a flat die (409), and the granules enter a granule partition conveyor (5) from a discharge hole (402) of the granulator; finally, the granules are input into a feeding hole (601) of a granule packer (6) through a granule partition conveyer (5), bagging of the granules is completed through a bagging mechanism (602), the bagged granules are conveyed to a sewing mechanism (604) to complete bagging, and crushing, drying, conveying, granulating and bagging of the waste straws for making the sauce-flavor liquor yeast can be continuously completed.

2. A system for preparing biomass fuel particles from waste straws in sauce-flavor liquor starter preparation is characterized in that: the system comprises a straw crusher (1), a continuous microwave dryer (2), a crushed straw baffle conveyor (3), a flat-die granulator (4), a particle baffle conveyor (5) and a particle packer (6);

the straw pulverizer (1) comprises a pulverizer frame (101), a pulverizing cavity is fixedly mounted on the pulverizer frame (101), a pulverizer rotor (105) is mounted in the pulverizing cavity, a pulverizer motor (103) is arranged inwards on the right side of the pulverizing cavity, the pulverizer motor (103) is connected with the pulverizer rotor (105), a straw feeding hole (102) is connected outwards on the right side of the pulverizing cavity, a pulverized straw discharging hole (104) is arranged on the upper portion of the pulverizing cavity, and the outlet end of the pulverized straw discharging hole (104) is communicated with the continuous microwave dryer (2); universal wheels are arranged below the pulverizer frame (101), so that the pulverizer frame is convenient to move and adjust;

the continuous microwave dryer (2) comprises a dryer support (208), two parallel drying chambers (204) are arranged on the dryer support (208) side by side and are used for microwave drying and sterilization of the crushed straw, a dryer electric control box (207) is arranged at the left side of the drying chamber (204), a dryer conveyer belt (209) is arranged among the drying chamber (204), the dryer electric control box (207) and the top of the dryer bracket (208), the conveyor belt (209) of the dryer realizes the continuous drying and conveying of the crushed straws in the drying chamber (204), a drying machine bracket (208) at the right side of the drying chamber (204) is provided with a crushed straw feeding hole (201), the crushed straw feeding hole (201) is positioned right below the crushed straw discharging hole (104), and the drying efficiency and the conveying speed of the continuous microwave dryer (2) are controlled by an electric control box (207) of the dryer;

the straw crushing baffle plate conveyor (3) comprises a straw crushing baffle plate conveyor rack (303), a conveyor belt is arranged on the straw crushing baffle plate conveyor rack (303), a straw crushing baffle plate conveyor baffle plate (304) is arranged on the conveyor belt, a straw crushing baffle plate conveyor feed inlet (301) is arranged on the right side of the straw crushing baffle plate conveyor (3), the straw crushing baffle plate conveyor feed inlet (301) is close to the tail end of the left side of a dryer conveyor belt (209), and a straw crushing baffle plate conveyor motor (302) is arranged on the right side of the straw crushing baffle plate conveyor rack (303) and used for driving the conveyor belt to rotate;

the flat die granulator (4) is provided with a granulator feeding hole (401), the granulator feeding hole (401) is located right below the tail end of the left side of the straw crushing baffle plate conveyor (3), a feeding scraper plate (407) is arranged below the granulator feeding hole (401), the crushed and dried straws can uniformly enter a granulating chamber, a press roller (408) and a flat die (409) are arranged in the granulating chamber below the feeding scraper plate (407), granulating holes are uniformly distributed in the flat die (409), and loose crushed and dried straws are extruded into the granulating holes in the flat die (409) by utilizing the mutual extrusion pressure between the press roller (408) and the flat die (409) to prepare granules; a discharging tray (410) is arranged below a flat die (409), a granulator discharging port (402) is arranged at the edge of the discharging tray (410), a pressing roller (408) is driven by a granulator main shaft (406) and rotates to work, the granulator main shaft (406) is connected with the output end of a granulator transmission gear box (411), the input end of the granulator transmission gear box (411) is connected with a granulator motor (403) through a coupler, the granulator transmission gear box (411) is in bevel gear transmission, and the working speed and the working efficiency of the flat die granulator (4) are controlled by a granulator electric cabinet (404).

Granule baffle conveyer (5) include powder granule baffle conveyer frame (503), set up the conveyer belt on granule baffle conveyer frame (503), arranged granule baffle conveyer baffle (504) on the conveyer belt, be provided with granule baffle conveyer feed inlet (501) on granule baffle conveyer (5) right side, granule baffle conveyer motor (502) set up and are used for driving the conveyer belt rotation on granule baffle conveyer frame (503) right side.

Granule baling press (6) are provided with granule baling press feed inlet (601), and granule baling press feed inlet (601) are located under granule baffle conveyer (5) left side tip, be provided with bagging-off mechanism (602) below granule baling press feed inlet (601), be provided with sewing mechanism (604) on bagging-off mechanism (602) left side, be provided with granule baling press conveyer belt (605) under bagging-off mechanism (602) and sewing mechanism (604), a granule for locate the granule of bagging-off completion and carry sewing mechanism (604) and carry out the envelope at bagging-off mechanism (602), be provided with granule electric cabinet (603) in the middle of bagging-off mechanism (602) and sewing mechanism (604), a bagging-off for control granule baling press (6) the bagging-off, sewing and conveying efficiency's control.

3. The system of claim 2, wherein the system comprises: the crusher rotor (105) comprises cutter heads (10501), a supporting shaft (10504) is arranged between the cutter heads (10501), a movable cutter (10503) is sleeved on the supporting shaft (10504), a fixed cutter (10502) is fixedly installed on the cutter head (10501) on the side corresponding to the position of the straw feeding hole (102), and a crusher motor (103) drives the crusher rotor (105) to rotate.

4. The system of claim 3, wherein the system comprises: the number of the fixed cutters (10502) is at least 2, the fixed cutters are distributed on the cutter head (10501) in the center, and the cutting edges of the fixed cutters (10502) are curved cutting edges.

5. The system of claim 3, wherein the system comprises: the movable knife (10503) is of a sawtooth hammer slice structure; the movable knife (10503) is sleeved on the corresponding support shaft (10504) and can freely rotate.

6. The system of claim 2, wherein the system comprises: heating pipes (203) are uniformly arranged in the drying chamber (204), a gap is formed between each heating pipe (203) and the corresponding drying machine conveying belt (209), drying chamber exhaust fans (212) are respectively arranged on the side surfaces of the drying chamber (204), and a drying chamber exhaust fan (213) is arranged on one side of each drying chamber exhaust fan (212); the top of the drying chamber (204) is provided with a heat exhaust chamber (205) which is communicated with each other, an exhaust fan (211) of the heat exhaust chamber is arranged in the heat exhaust chamber (205), a heat dissipation exhaust fan (210) is arranged beside the exhaust fan (211) of the heat exhaust chamber, and a heat exhaust pipe (206) is arranged above the heat exhaust chamber (205) to jointly complete heat exhaust and moisture exhaust of the continuous microwave drying machine (2); a drying chamber observation window (202) is arranged on the front surface of the drying chamber (204) to realize real-time observation of the drying state.

7. The system of claim 2, wherein the system comprises: the straw crushing baffle plate conveyor (3) is of an inclined structure, and the baffle plate (304) of the straw crushing baffle plate conveyor is arranged on the conveyor belt, so that dried and crushed straws can be uniformly lifted and conveyed into the feed inlet (401) of the granulator.

8. The system of claim 2, wherein the system comprises: the granule baffle conveyer (5) is an inclined structure, and the granule baffle conveyer baffles (504) are arranged on the conveyer belt, so that granules can be uniformly lifted and conveyed into a feed port (601) of the packing machine.

9. The system of claim 2, wherein the system comprises: a bagging mechanism (602) is arranged below the particle packer (6), the bagging mechanism (602) is suitable for bags of various specifications, and a sewing mechanism (604) is arranged on the left side of the bagging mechanism (602) and is used for sewing and packaging the bagged bags.

Technical Field

The invention relates to the technical field of recycling of wine making byproducts, in particular to a method and a system for making biomass fuel particles by using waste straws in sauce-flavor wine starter making.

Background

The national sauce-flavor wine production is mainly concentrated in the river basin of red water, and the amount of straw required for making koji every year reaches thousands of tons. At present, most of starter propagation waste straws of enterprises with more than scale are directly treated as garbage, and part of the straws are directly burnt in small workshops, so that the waste of resources is caused, and the environment is polluted. As all straws for koji making are in direct contact with the koji blocks, a plurality of koji making raw material wheat flour and microorganisms are adhered to the straws, so that the treatment and resource utilization of the waste straws for koji making are difficult.

Disclosure of Invention

The invention aims to provide a method and a system for preparing biomass fuel particles from waste straws of sauce-flavor liquor distiller's yeast, which are an important way for resource utilization of the waste straws of sauce-flavor liquor distiller's yeast, so that the pollution to the environment and the waste of resources can be reduced, and meanwhile, the prepared biomass fuel particles can bring certain benefits as power plant power generation raw materials or fuel of steam used for liquor distillation in a brewery.

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

a method for preparing biomass fuel particles by using waste straws of sauce-flavor liquor yeast preparation comprises the steps of putting the waste straws of the sauce-flavor liquor yeast preparation into a straw crusher and crushing; the crushed straws enter a continuous microwave dryer for continuous drying and conveying, wherein a heating pipe is arranged in a drying chamber to dry and sterilize the crushed straws, the water content of the crushed straws is reduced from the initial 50-60 percent to 10-15 percent suitable for granulation, and heat removal and moisture removal are simultaneously completed; the dried crushed and dried straws enter a flat die granulator through a crushed straw clapboard conveyor, uniformly fall into a granulating chamber under the action of a feeding scraper, and are pressed into granules under the action of a compression roller and a flat die, and the granules enter the granule clapboard conveyor; finally, the particles enter a feeding port of the particle packing machine from the tail end of the particle partition plate conveyor, the bagging of the particles is completed by the bagging mechanism, and the bagged particle bags are conveyed to the sewing mechanism to complete bag sealing.

A system for preparing biomass fuel particles from waste straws in sauce-flavor liquor starter making comprises a straw pulverizer, a continuous microwave dryer, a pulverized straw partition conveyor, a flat-die granulator, a particle partition conveyor and a particle packer;

the straw pulverizer comprises a pulverizer frame, a pulverizing cavity is fixedly arranged on the pulverizer frame, a pulverizer rotor is arranged in the pulverizing cavity, a pulverizer motor is arranged on the inner side of the pulverizing cavity and connected with the pulverizer rotor, a straw feeding hole is connected to the right side of the pulverizing cavity, a pulverized straw discharging hole is arranged at the upper part of the pulverizing cavity, and the outlet end of the pulverized straw discharging hole is communicated with a continuous microwave dryer; universal wheels are arranged below the pulverizer frame, so that the pulverizer frame is convenient to move and adjust;

the continuous microwave dryer comprises a dryer support, drying chambers are arranged on the dryer support side by side, a dryer electric control box is arranged on the left side of the drying chamber, a dryer conveying belt is arranged among the drying chamber, the dryer electric control box and the top of the dryer support, a dryer support sand-ash girl on the right side of the drying chamber is provided with a straw crushing feeding port, and the dryer conveying belt realizes that materials sequentially pass through the drying chambers;

the straw crushing baffle plate conveyor comprises a straw crushing baffle plate conveyor frame, a conveyor belt is arranged on the straw crushing baffle plate conveyor frame, a straw crushing baffle plate conveyor baffle plate is arranged on the conveyor belt, a straw crushing baffle plate conveyor feed inlet is arranged at the inlet of the conveyor belt, and a straw crushing baffle plate conveyor motor is arranged at the lower end of the straw crushing baffle plate conveyor frame and is used for driving the conveyor belt to move;

the flat die granulator is provided with a granulator feeding hole, a feeding scraper is arranged below the granulator feeding hole, the crushed straws can uniformly enter the granulating chamber, a compression roller and a flat die are arranged below the feeding scraper, the flat die is provided with granulating holes, and loose crushed straws are extruded into the granulating holes on the flat die by utilizing the mutual extrusion pressure between the compression roller and the flat die to be prepared into granules; the flat die is provided with ejection of compact tray below, and ejection of compact tray edge is provided with the granulation machine discharge gate, and the compression roller has been driven by the granulation machine main shaft and has been rotated work, and the granulation machine main shaft links to each other with granulation machine drive gear box output, and granulation machine drive gear box input passes through the shaft coupling and links to each other with the granulation machine motor, and granulation machine drive gear box is the bevel gear transmission, and flat die granulation machine operating speed and work efficiency are controlled by the granulation machine electric cabinet.

The particle partition plate conveyor comprises a powder particle partition plate conveyor frame, a conveyor belt is arranged on the particle partition plate conveyor frame, a straw crushing partition plate conveyor partition plate is arranged on the conveyor belt, a straw crushing partition plate conveyor feed inlet is formed in the outlet of the conveyor belt, and a straw crushing partition plate conveyor motor is arranged at the lower end of the straw crushing partition plate conveyor frame and used for driving the conveyor belt to move.

Preferably, the crusher rotor comprises cutter heads, a support shaft is arranged between the cutter heads, a movable cutter is sleeved on the support shaft, a fixed cutter is fixedly mounted on the cutter head on the side corresponding to the straw feeding hole, and the crusher motor drives the cutter heads to rotate.

Preferably, the fixed knives are at least 2, are distributed on the cutter head in the center, and the cutting edges of the fixed knives are curved cutting edges.

Preferably, the movable knife is of a zigzag structure with a broken line as a whole; the movable knife is sleeved on the corresponding support shaft and can freely rotate.

Preferably, heating pipes are uniformly arranged in the drying chamber, gaps are formed between the heating pipes and a conveyor belt of the drying machine, exhaust fans of the drying chamber are respectively arranged on the side surfaces of the drying chamber, and an exhaust fan of the drying chamber is arranged on one side of the exhaust fan of the drying chamber; the drying chamber is provided with heat exhausting chambers at the top and communicated with each other, the back side of the heat exhausting chambers is provided with heat exhausting chamber exhaust fans which are provided with heat dissipating exhaust fans beside and communicated with each other, and heat exhausting pipes are arranged above the heat exhausting chambers; and a drying chamber observation window is arranged on the front surface of the drying chamber to realize real-time observation of the drying state.

The invention has the beneficial effects that:

the important mode of resource utilization of the waste straws for making the sauce-flavor liquor can reduce the pollution to the environment and the waste of resources, and meanwhile, the prepared biomass fuel particles can bring certain benefits as power plant power generation raw materials or fuel of steam used for liquor distillation in a winery.

Drawings

FIG. 1 is a first schematic diagram of the system of the present invention;

FIG. 2 is a second schematic structural diagram of the system of the present invention;

FIG. 3 is a schematic view of the straw pulverizer of the present invention;

FIG. 4 is a front view of a shredder rotor according to the present invention;

FIG. 5 is a partial cross-sectional view of a continuous microwave dryer according to the present invention;

FIG. 6 is a view showing the internal structure of the continuous microwave dryer according to the present invention;

FIG. 7 is a view showing the structure of an exhaust fan according to the present invention;

FIG. 8 is a view showing the structure of an exhaust fan according to the present invention;

FIG. 9 is a view showing the structure of a baffle conveyor for straw crushing according to the present invention;

FIG. 10 is a view showing the internal structure of the granulation machine according to the present invention;

FIG. 11 is an isometric view of a pelletizer in accordance with the present invention;

FIG. 12 is a view showing the structure of a press roll and a flat die in accordance with the present invention;

FIG. 13 is a view of the drive gearbox of the granulation machine of the present invention;

FIG. 14 is a view of the construction of the particle baffle conveyor of the present invention;

FIG. 15 is a schematic view of the pellet packer of the present invention.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

In this embodiment: as shown in attached figures 1-15, the method comprises a method for preparing biomass fuel particles by using waste straws of sauce-flavor liquor koji-making, which comprises the steps of feeding the waste straws of sauce-flavor liquor koji-making into a straw crusher 1 from a straw feeding hole 102, crushing the straws into 3-5mm in length under the action of a fixed knife 10502 and a movable knife 10503 which rotate at a high speed, and supplying power to a crusher motor 103; crushed straws enter the continuous microwave dryer 2 from the crushed straw outlet 104 and the crushed straw inlet 201 for continuous drying and conveying, wherein heating pipes 203 are arranged in two drying chambers 204 which are arranged side by side to dry and sterilize the crushed straws, the moisture content of the crushed straws can be reduced from 50-60% to 10-15% which is suitable for granulation, and the heat exhausting chamber 205, the heat exhausting pipe 206, the heat radiating exhaust fan 210, the heat exhausting chamber exhaust fan 211, the drying chamber exhaust fan 212 and the drying chamber exhaust fan 213 play roles of heat exhausting and moisture exhausting. The dryer conveyor belt 209 functions as a continuous conveyor; the tail end of a conveyor belt 209 of the crushed and dried straw dryer after drying enters a crushed straw clapboard conveyor 3 through a feed inlet 301 of the crushed straw clapboard conveyor, the crushed straw clapboard conveyor is arranged to be of an inclined structure, the conveyor belt is a clapboard type conveyor belt which is suitable for continuous and uniform conveying of crushed and dried straws and plays a role in lifting the height, and the power of the conveyor belt is provided by a motor 302 of the crushed straw clapboard conveyor; then, the crushed straws enter a feed inlet 401 of the granulator from the tail end of a crushed straw partition conveyor 3, and uniformly fall into a granulating chamber under the action of a feeding scraper 407, the crushed straws are pressed into granules under the action of a compression roller 408 and a flat die 409, a granulator motor 403 is connected with the input end of a granulator transmission gear box 411 through a coupler, and the output end of the granulator transmission gear box 411 is connected with a granulator spindle 406 and finally drives the compression roller 408 to work; the prepared granules enter the granule separator conveyor 5 through a granule separator conveyor feed inlet 501 through a granulator discharge outlet 402, the granule separator conveyor is arranged in an inclined structure, the conveyor belt is a separator type conveyor belt, is suitable for continuous and uniform conveying of the granules, plays a role in lifting the height, and is powered by a granule separator conveyor motor 502; finally, the particles enter a feeding hole 601 of the particle packing machine from the tail end of the particle partition plate conveyor 5, the bagging of the particles is completed by the bagging mechanism 602, after the bagging is completed, the conveyor belt is controlled by the electric cabinet 603 of the packing machine to move, and the bagged particle bags are conveyed to the sewing mechanism 604 to complete bag sealing.

The system for preparing the biomass fuel particles by the waste straws of the sauce flavor wine starter is mainly composed of a straw crusher 1, a continuous microwave dryer 2, a crushed straw clapboard conveyor 3, a flat die granulator 4, a particle clapboard conveyor 5 and a particle packer 6; the straw pulverizer 1 mainly comprises a pulverizer frame 101, a straw feeding port 102, a pulverizer motor 103, a pulverized straw discharging port 104 and a pulverizer rotor 105. The crusher rotor 105 consists of a cutter head 10501, a movable cutter 10502, a fixed cutter 10503 and a supporting shaft 10504; the continuous microwave dryer 2 consists of a crushed straw feeding hole 201, a drying chamber observation window 202, a heating pipe 203, a drying chamber 204, a heat exhaust chamber 205, a heat exhaust pipe 206, a dryer electric control box 207, a dryer bracket 208, a dryer conveying belt 209, a heat dissipation exhaust fan 210, a heat exhaust chamber exhaust fan 211, a drying chamber exhaust fan 212 and a drying chamber exhaust fan 213; the crushed straw clapboard conveyor 3 mainly comprises a crushed straw clapboard conveyor feed inlet 301, a crushed straw clapboard conveyor motor 302, a crushed straw clapboard conveyor rack 303 and a crushed straw clapboard conveyor clapboard 304; the flat-die granulator 4 mainly comprises a granulator feeding hole 401, a granulator discharging hole 402, a granulator motor 403, a granulator electric cabinet 404, a granulator base 405, a granulator main shaft 406, a feeding scraper 407, a press roller 408, a flat die 409, a discharging tray 410, a granulator transmission gear box 411, a granulator outer shell 412 and the like; the particle partition conveyor 5 mainly comprises a particle partition conveyor feed inlet 501, a particle partition conveyor motor 502, a particle partition conveyor frame 503 and a particle partition conveyor partition 504; the particle packing machine 6 mainly comprises a packing machine feeding port 601, a bagging mechanism 602, a packing machine electric cabinet 603, a sewing mechanism 604, a packing machine conveying belt and the like.

The straw feeding port 102, the pulverizer motor 103, the pulverized straw discharging port 104 and the pulverizer rotor 105 are mounted on the pulverizer frame 101. Pulverizer frame 101 sets up four universal wheels, conveniently removes and the adjustment position. The crusher rotor 105 is provided with a cutter head 10501, eight movable cutters 10403 and two fixed cutters 10402, the eight movable cutters 10402 are saw-tooth-shaped cutting edges, and the two fixed cutters 10403 are curved cutting edges, so that the crushed grain size of the straws is more uniform.

The continuous microwave dryer 2 consists of a crushed straw feeding hole 201, a drying chamber observation window 202, a heating pipe 203, a drying chamber 204, a heat exhaust chamber 205, a heat exhaust pipe 206, a dryer electric control box 207, a dryer bracket 208, a dryer conveying belt 209, a heat dissipation exhaust fan 210, a heat exhaust chamber exhaust fan 211, a drying chamber exhaust fan 212 and a drying chamber exhaust fan 213;

the flat die granulator 4 is provided with a granulator feeding hole 401, a feeding scraper 407 is arranged below the granulator feeding hole 401, crushed straws can uniformly enter a granulating chamber, a press roller 408 and a flat die 409 are arranged below the feeding scraper 407, a granulating hole is formed in the flat die 409, and loose crushed straws are extruded into the granulating hole in the flat die 409 by utilizing the mutual extrusion pressure between the press roller 408 and the flat die 409 to be prepared into granules. A discharging tray 410 is arranged below the flat die 409, a granulator discharging port 402 is arranged at the edge of the discharging tray 410, and the prepared granules fall onto the discharging tray 410 through granulating holes of the flat die 409 and slide down to the granulator discharging port 402 under the action of gravity. The compression roller 408 is driven by the granulator spindle 406 to rotate, the granulator spindle 406 is connected with the output end of the granulator transmission gear box 411, the input end of the granulator transmission gear box 411 is connected with the granulator motor 403 through a coupler, the granulator transmission gear box 411 is in bevel gear transmission and has the functions of reducing the rotating speed and changing the transmission direction, and the working rotating speed and the working efficiency of the flat-die granulator 4 are controlled by the granulator electric cabinet 404.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.