Straw pulverizer with cyclone dust removal and moisture removal functions

Abstract

The invention relates to the technical field of flour mills, in particular to a straw flour mill with cyclone dust removal and moisture removal functions, which comprises a flour mill tank body, the flour mill tank body is arranged in a three-section manner, a lower tank body, a middle tank body and an upper tank body are sequentially and detachably mounted from bottom to top, and a grinding assembly is arranged at the axis of the lower tank body; the grinding assembly comprises a grinding roller frame provided with a plurality of grinding roller bodies, the outer side of the grinding roller frame is provided with a grinding wall capable of being attached to the grinding roller bodies, and the grinding wall is detachably installed on the inner side of the lower tank body. The primary grading assembly is arranged in the pulverizer tank body, straw powder is conveyed into the primary grading assembly through the feeding pipeline, a rotor of a grader can concentrate on fine separation, interference of coarse particles on the separation process is reduced, the grader treats the pretreated fine particles, powder with the target fineness is produced more accurately, and the quality of straw powder is improved. And impact and abrasion of coarse particles to rotor blades are reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of flour mills, and particularly to a straw flour mill with a cyclone dust removal and moisture removal function. Background Art

[0002] Straw flour mills are mainly used to crush crop straws (such as wheat straws, corn straws, rice straws, etc.) into fine powders or granules. Their application scenarios are extensive, covering fields such as agriculture, industry, and environmental protection. Straw powder can be used as roughage for ruminants (cows, sheep, etc.), or mixed with other concentrated feeds to improve the nutrient utilization rate. Straw powder is also used for composting or directly returning to the field to increase soil organic matter and improve soil structure. Therefore, straw flour mills have a wide range of usage scenarios.

[0003] During the operation of a straw flour mill, moisture in the straw and dust will appear during the straw crushing process. The dust mixed into the straw powder will reduce the product purity and affect subsequent utilization. After separating the dust, the particle size distribution of the straw powder is more uniform and the quality is more stable. The appearance of dust will also cause environmental pollution and affect the health of workers. At the same time, the moisture in the straw will cause equipment blockage and affect the normal operation of the equipment. When the moisture in the straw powder is too high, it is easy to cause mildew and produce toxic substances. Excessive moisture will also cause the weight of the powder to increase, increasing the transportation cost.

[0004] Therefore, it is necessary to invent a straw flour mill with a cyclone dust removal and moisture removal function to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a straw flour mill with a cyclone dust removal and moisture removal function, integrate the primary classification component into the interior of the flour mill tank body, and heat the feeding pipeline through an electric tracing pipeline to achieve the purpose of improving the classification efficiency and removing the moisture of the straw.

[0006] To achieve this purpose, the present invention adopts the following technical solutions: Provided is a straw pulverizer with a cyclone dust removal and moisture removal function, including a pulverizer tank body. The pulverizer tank body is arranged in a three-section type, and a lower tank body, a middle tank body, and an upper tank body are detachably installed in sequence from bottom to top. A grinding assembly is arranged at the axis of the lower tank body. The grinding assembly includes a grinding roller frame installed with a plurality of grinding roller bodies. A grinding wall capable of fitting with the grinding roller bodies is arranged on the outer side of the grinding roller frame. The grinding wall is detachably installed on the inner side of the lower tank body. A primary classification assembly for initially classifying according to the powder particle size is installed at the axis of the middle tank body. The primary classification assembly includes a cone with an opening at the bottom facing the grinding assembly. A secondary classification assembly located above the primary classification assembly is installed at the axis of the upper tank body. The secondary classification assembly includes a rotatable classifier rotor for collecting the straw powder after primary classification. A pre-sorting assembly is arranged on the outer side of the pulverizer tank body. The pre-sorting assembly is used to convey the straw powder below upward. The pre-sorting assembly includes a feeding pipe extending into the primary classification assembly. An outlet is arranged at the top of the upper tank body. One end of the outlet is connected to a cyclone dust collector through a pipe. The bottom of the cyclone dust collector is connected to a storage tank.

[0007] As a preferred solution of a straw pulverizer with a cyclone dust removal and moisture removal function, the primary classification assembly further includes a cylinder and an outer connecting block. The cylinder is located at the top of the cone. The cylinder and the cone are fixedly installed on the inner side of the middle tank body through the outer connecting block. A discharge pipe is opened at the top of the cylinder. The discharge pipe is located at the axis of the cylinder, and its top opening extends into the upper tank body. One end of the feeding pipe penetrates through the cylinder and extends into its interior.

[0008] As a preferred solution of a straw pulverizer with a cyclone dust removal and moisture removal function, the grinding assembly further includes a middle rotating shaft, a throwing turntable, a throwing disk, and a triangular push block. The bottom end of the middle rotating shaft is connected to a transmission assembly for driving its rotation. A rotating shaft support seat sleeved on the outer side of the middle rotating shaft is detachably installed on the inner side of the lower tank body. An inwardly inclined aggregate slope is installed on the inner side of the lower tank body. The throwing turntable is rotatably arranged above the aggregate slope. The throwing turntable is fixedly connected to the middle rotating shaft. A plurality of the triangular push blocks are fixedly installed on the outer side of the throwing turntable. The triangular push blocks are used to push the straw powder above the aggregate slope. The other end of the feeding pipe penetrates through the lower tank body and extends above the aggregate slope. The throwing disk is located at the top of the middle rotating shaft and is below the opening direction of the bottom end of the cone.

[0009] As a preferred solution of a straw pulverizer with a cyclone dust removal and moisture removal function, the pre-sorting assembly further includes a constant temperature protection sleeve, an electric tracing pipe and a blower. The electric tracing pipe is evenly wound around the outer side of the feeding pipe. The constant temperature protection sleeve is used to cover the electric tracing pipe. A blower for conveying straw powder is installed on the part of the feeding pipe located outside the pulverizer tank body.

[0010] As a preferred solution of a straw pulverizer with a cyclone dust removal and moisture removal function, a gap is left between the grinding wall and the material throwing turntable. A plurality of cleaning assemblies for cleaning debris on the side of the grinding wall are arranged below the material throwing turntable. The cleaning assembly includes a one-way valve, an airbag body, a jet pipe and a nozzle. The airbag body is installed above the height adjustment assembly. The one-way valve is located at one end of the airbag body. The jet pipe is connected to the other end of the airbag body. The top end of the jet pipe extends above the grinding wall. The nozzle is detachably installed at the end of the jet pipe. An extrusion assembly for pressing the airbag body is arranged at the bottom end of the material throwing turntable.

[0011] As a preferred solution of a straw pulverizer with a cyclone dust removal and moisture removal function, the extrusion assembly includes a bottom pressing rod detachably installed at the bottom end of the material throwing turntable and a runner rotatably installed at the end of the bottom pressing rod; when the material throwing turntable rotates, the runner can press a plurality of airbag bodies.

[0012] As a preferred solution of a straw pulverizer with a cyclone dust removal and moisture removal function, the height adjustment assembly is used to change the gas flow rate of the gas ejected by the airbag body for cleaning the grinding wall. The height adjustment assembly includes an airbag mounting plate, mounting plate connecting rods, a synchronous push plate and an electric push rod. The airbag mounting plate is located above the shaft support seat for fixedly installing a plurality of airbag bodies. A plurality of the mounting plate connecting rods are arranged at equal intervals at the bottom end of the airbag mounting plate. The mounting plate connecting rods penetrate and extend below the shaft support seat. The synchronous push plate is located at the end of the mounting plate connecting rod. The telescopic end of the electric push rod is fixedly connected to the bottom end of the synchronous push plate. A plurality of push rod mounting blocks are arranged inside the lower tank body. The electric push rod is fixedly installed at the top end of the push rod mounting block.

[0013] As a preferred solution of a straw pulverizer with a cyclone dust removal and moisture removal function, a discharge inclined surface is arranged at the bottom end of the middle tank body. The nozzle is fixedly installed below the discharge inclined surface. The jet pipe located outside the middle tank body and the jet pipe located inside the middle tank body are inserted and connected.

[0014] As a preferred embodiment of a straw pulverizer with a cyclone dust removal and moisture removal function, a classifier motor for driving the rotation of the classifier rotor is provided at the top of the upper tank body. An inclined surface for guiding the straw powder is provided above the discharge pipe at the upper part of the cylinder. A feed inlet is provided on one side of the middle tank body, and the feed inlet is located above the discharge inclined surface.

[0015] As a preferred embodiment of a straw pulverizer with a cyclone dust removal and moisture removal function, the transmission assembly includes a first pulley, a transmission belt, a second pulley, and a driving motor. The first pulley is installed at the bottom end of the middle rotating shaft. The second pulley is located on one side of the pulverizer tank body. The second pulley is connected to the output end of the driving motor. The first pulley and the second pulley are connected by a transmission belt.

[0016] The beneficial effects of the present invention are as follows: By arranging the primary classification assembly inside the pulverizer tank body and transporting the straw powder located above the aggregate inclined surface to the inside of the primary classification assembly through a feeding pipe, the straw powder pre-removes larger particles in the air flow according to the working principle of cyclone dust removal, making the particle size range of the particles entering the classifier narrower. The classifier rotor can focus more on fine separation, reducing the interference of coarse particles on the separation process. The classifier processes the pre-treated fine particles, with higher separation efficiency, more accurate output of the powder with the target fineness, and reduction of the impact and wear of coarse particles on the rotor blades, extending the service life of the equipment. The coarse particles directly return to the grinding area through the cone for reprocessing, forming a closed-loop cycle and improving the overall system efficiency. By winding an electric tracing pipe outside the feeding pipe, the temperature inside the pulverizer tank body can be increased during the closed-loop cycle to heat the straw powder, achieving the purpose of removing moisture, avoiding mildew, reducing the weight of the straw powder, and reducing transportation costs. After the classification by the classifier rotor is completed, since the size of the ground straw particles is larger than that of the dust particles, by selecting a suitable cyclone dust collector, the impurities can be discharged from above, and the straw particles are collected through a storage tank. By using the primary classification assembly and the cyclone dust collector in combination, a multi-stage separation effect can be achieved, improving the separation efficiency of dust, and thus improving the product purity of the straw powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly introduced below. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2It is a schematic diagram of the overall sectional assembly of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the grinding mill tank body of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the height adjustment component of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the cleaning component of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the pre-sorting component of the present invention.

[0024] Figure 7 It is a schematic diagram of the positional relationship structure of the cleaning component of the present invention.

[0025] Figure 8 It is the present invention Figure 7 The enlarged structure schematic diagram at position A in.

[0026] Figure 9 It is a schematic diagram of the structure of the primary classification component of the present invention.

[0027] Figure 10 It is a schematic diagram of the main view structure inside the grinding mill tank body of the present invention.

[0028] Figure 11 It is a schematic diagram of the overall powder flow direction structure of the present invention.

[0029] In the figure: 1. Grinding mill tank body; 101. Lower tank body; 102. Middle tank body; 103. Upper tank body; 104. Aggregate inclined surface; 105. Feed inlet; 106. Discharge outlet; 107. Discharge inclined surface; 108. Push rod mounting block; 3. Pre-sorting component; 301. Constant temperature protective sleeve; 302. Feeding pipeline; 303. Electric tracing pipeline; 4. Cyclone dust collector; 5. Storage tank; 7. Transmission component; 701. Pulley one; 702. Transmission belt; 703. Pulley two; 704. Driving motor; 9. Grinding component; 901. Middle rotating shaft; 902. Throwing disc; 903. Grinding roll frame; 904. Throwing plate; 905. Bottom pressing rod; 906. Runner; 907. Triangular pushing block; 10. Cleaning component; 1001. Check valve; 1002. Airbag body; 1003. Jet pipeline; 1004. Sprinkler head; 11. Primary classification component; 1101. Cylinder; 1102. Cone; 1103. Outer connecting block; 1104. Discharge pipe; 12. Secondary classification component; 1201. Classifier rotor; 1202. Classifier motor; 13. Grinding wall; 14. Height adjustment assembly; 1401. Airbag mounting plate; 1402. Mounting plate connecting rod; 1403. Synchronous push plate; 1404. Electric push rod; 15. Fan; 16. Rotating shaft support base. Detailed implementation manner

[0030] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation manners.

[0031] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0032] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation to this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, if terms such as "connection" are used to indicate the connection relationship between components, this term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Refer to Figures 1 to 11, an embodiment of the present invention provides a straw pulverizer with a cyclone dust removal and moisture removal function, including a pulverizer tank body 1. The pulverizer tank body 1 is arranged in a three-section type, and a lower tank body 101, a middle tank body 102, and an upper tank body 103 are detachably installed in sequence from bottom to top. A grinding assembly 9 is arranged at the axis of the lower tank body 101. The grinding assembly 9 includes a grinding roller frame 903 on which a plurality of grinding roller bodies are installed. A grinding wall 13 capable of fitting with the grinding roller bodies is arranged outside the grinding roller frame 903. The grinding wall 13 is detachably installed inside the lower tank body 101. A primary classification assembly 11 for initially classifying according to the powder particle size is installed at the axis of the middle tank body 102. The primary classification assembly 11 includes a cone 1102 with an opening at the bottom facing the grinding assembly 9. A secondary classification assembly 12 is installed at the axis of the upper tank body 103 above the primary classification assembly 11. The secondary classification assembly 12 includes a rotatable classifier rotor 1201 for collecting the straw powder after primary classification. A pre-sorting assembly 3 is arranged outside the pulverizer tank body 1. The pre-sorting assembly 3 is used to convey the lower straw powder upward. The pre-sorting assembly 3 includes a feeding pipe 302 extending into the primary classification assembly 11. An outlet 106 is arranged at the top of the upper tank body 103. One end of the outlet 106 is connected to a cyclone dust collector 4 through a pipe. The bottom of the cyclone dust collector 4 is connected to a storage tank 5.

[0035] By arranging the pulverizer tank body 1 in a multi-section type, the difficulty of replacing the grinding wall 13 can be reduced, and different grinding walls 13 can be selected according to the types and sizes of the ground straws to control the grinding fineness of the straw powder. Through the arrangement of the pre-sorting assembly 3, during the grinding process, a large number of coarse particles impacting the classifier rotor 1201 multiple times is avoided, which can cause the processing load of the classifier rotor 1201 to increase, resulting in increased power consumption and accelerated wear of the classifier rotor 1201.

[0036] The primary classification assembly 11 further includes a cylinder 1101 and an outer connecting block 1103. The cylinder 1101 is located at the top of the cone 1102. The cylinder 1101 and the cone 1102 are fixedly installed inside the middle tank body 102 through the outer connecting block 1103. A discharge pipe 1104 is opened at the top of the cylinder 1101. The discharge pipe 1104 is located at the axis of the cylinder 1101, and its top opening extends into the upper tank body 103. One end of the feeding pipe 302 penetrates the cylinder 1101 and extends into its interior.

[0037] By heating the primary classification assembly 11 through the electric tracing pipe 303, the temperature inside the pulverizer tank body 1 can be increased, enabling the grinding wall 13 to be quickly dried and improving the grinding efficiency.

[0038] The grinding assembly 9 further includes a middle rotating shaft 901, a material throwing turntable 902, a material throwing plate 904, and a triangular push block 907. The bottom end of the middle rotating shaft 901 is connected to a transmission assembly 7 for driving its rotation. A rotating shaft support seat 16 sleeved outside the middle rotating shaft 901 is detachably installed inside the lower tank body 101. An inwardly inclined aggregate slope 104 is installed inside the lower tank body 101. The material throwing turntable 902 is rotatably arranged above the aggregate slope 104. The material throwing turntable 902 is fixedly connected to the middle rotating shaft 901. A plurality of the triangular push blocks 907 are fixedly installed on the outer side of the material throwing turntable 902. The triangular push blocks 907 are used to push the straw powder above the aggregate slope 104. The other end of the feeding pipe 302 penetrates through the lower tank body 101 and extends above the aggregate slope 104. The material throwing plate 904 is located at the top end of the middle rotating shaft 901 and is below the opening direction of the bottom end of the cone 1102.

[0039] The setting of the triangular push block 907 can push the powder accumulated on the aggregate slope 104 to one side of the feeding pipe 302, improve the conveying efficiency of the powder, and enable the powder to be evenly conveyed upward. The material throwing plate 904 can make the straw and its powder evenly distributed inside the grinding wall 13.

[0040] The pre-sorting assembly 3 further includes a constant temperature protection sleeve 301, an electric tracing pipe 303, and a blower 15. The electric tracing pipe 303 is evenly wound around the outer side of the feeding pipe 302. The constant temperature protection sleeve 301 is used to cover the electric tracing pipe 303. A blower 15 for conveying straw powder is installed on the part of the feeding pipe 302 located outside the grinding machine tank body 1.

[0041] The constant temperature protection sleeve 301 is used to evenly distribute the temperature on the outer surface of the feeding pipe 302, improve the heating effect on the feeding pipe 302. During the process of the straw powder passing through the feeding pipe 302, the powder can be quickly dried, ensuring that the straw powder passing through the classifier rotor 1201 is dried, effectively reducing the moisture content and avoiding mildew.

[0042] A gap is left between the grinding wall 13 and the material-throwing turntable 902. A plurality of cleaning components 10 for cleaning debris on the side of the grinding wall 13 are arranged below the material-throwing turntable 902. The cleaning component 10 includes a one-way valve 1001, an airbag body 1002, a jet pipe 1003 and a nozzle 1004. The airbag body 1002 is installed above the height adjustment component 14. The one-way valve 1001 is located at one end of the airbag body 1002. The jet pipe 1003 is connected to the other end of the airbag body 1002. The top end of the jet pipe 1003 extends to the top of the grinding wall 13. The nozzle 1004 is detachably installed at the end of the jet pipe 1003. The bottom end of the material-throwing turntable 902 is provided with an extrusion component for pressing the airbag body 1002.

[0043] By providing the cleaning component 10 , the attachments on the grinding wall 13 can be cleaned in time, and the drying rate of the grinding wall 13 can be increased, thereby ensuring the grinding rate of the straw.

[0044] The extrusion assembly includes a bottom pressing rod 905 detachably mounted on the bottom end of the material-throwing turntable 902 and a rotating wheel 906 rotatably mounted on the end of the bottom pressing rod 905 ; when the material-throwing turntable 902 rotates, the rotating wheel 906 can press the multiple airbag bodies 1002 .

[0045] The rotation of the material-throwing turntable 902 drives the bottom pressing rod 905 to rotate, and the bottom of the wheel 906 squeezes different airbag bodies 1002, so that the grinding wall 13 can be cleaned by using the power of the transmission component 7.

[0046] The height adjustment component 14 is used to change the gas flow rate of the jet gas output by the airbag body 1002 for cleaning the grinding wall 13. The height adjustment component 14 includes an airbag mounting plate 1401, a mounting plate connecting rod 1402, a synchronous push plate 1403 and an electric push rod 1404. The airbag mounting plate 1401 is located above the rotating shaft support seat 16 and is used to fix and install multiple airbag bodies 1002. Multiple mounting plate connecting rods 1402 are equidistantly arranged at the bottom end of the airbag mounting plate 1401. The mounting plate connecting rod 1402 penetrates and extends to the bottom of the rotating shaft support seat 16. The synchronous push plate 1403 is located at the end of the mounting plate connecting rod 1402. The telescopic end of the electric push rod 1404 is fixedly connected to the bottom end of the synchronous push plate 1403. A plurality of push rod mounting blocks 108 are arranged on the inner side of the lower tank body 101. The electric push rod 1404 is fixedly installed on the top of the push rod mounting block 108.

[0047] The setting of the height adjustment component 14 can control the jet speed by raising the height of the airbag body 1002, and can select different jet speeds according to the moisture content of the straw, thereby maximizing the service life of the airbag body 1002.

[0048] A discharge inclined plane 107 is provided at the bottom end of the middle tank body 102. The nozzle 1004 is fixedly installed below the discharge inclined plane 107. The jet pipe 1003 located outside the middle tank body 102 and the jet pipe 1003 located inside the middle tank body 102 are inserted and connected.

[0049] The setting of the discharge inclined plane 107 can prevent the straw from falling outside the grinding wall 13, ensuring that the straw at each location can be ground by the grinding component 9. At the same time, the discharge inclined plane 107 is located at the bottom end of the middle tank body 102, which helps to reduce the installation difficulty of the grinding wall 13 and prevent the straw from impacting the nozzle 1004, resulting in the failure of the cleaning component 10.

[0050] A classifier motor 1202 for driving the classifier rotor 1201 to rotate is provided at the top end of the upper tank body 103. A guide inclined plane for guiding the straw powder is provided above the discharge pipe 1104 in the cylinder 1101. An inlet 105 is provided on one side of the middle tank body 102, and the inlet 105 is located above the discharge inclined plane 107. The setting of the guide inclined plane can shake off the straw and powder above it through the vibration generated when the grinding component 9 rotates, reducing the loss during straw production.

[0051] The transmission component 7 includes a pulley one 701, a transmission belt 702, a pulley two 703, and a driving motor 704. The pulley one 701 is installed at the bottom end of the middle rotating shaft 901. The pulley two 703 is located on one side of the mill body 1. The pulley two 703 is connected to the output end of the driving motor 704. The pulley one 701 and the pulley two 703 are connected by the transmission belt 702. The setting of belt transmission has a simple structure, is convenient for installation and replacement, and has a low maintenance cost.

[0052] In the present invention, the primary classification component 11 is arranged inside the grinding machine tank body 1, and the straw powder located above the aggregate inclined plane 104 is conveyed into the primary classification component 11 through the feeding pipeline 302. According to the working principle of cyclone dust removal, the larger particles in the air flow are removed in advance, so that the particle size range of the particles entering the classifier is narrower. The classifier rotor 1201 can focus more on fine separation, reduce the interference of coarse particles on the separation process, the classifier processes the pre-treated fine particles, the separation efficiency is higher, the powder output of the target fineness is more accurate, and the impact and wear of the rotor blades by coarse particles are reduced, prolonging the service life of the equipment. The coarse particles directly return to the grinding area for reprocessing through the cone 1102, forming a closed-loop cycle and improving the overall system efficiency; by the electric heating tracing pipeline 303 wound outside the feeding pipeline 302, the temperature inside the grinding machine tank body 1 can be increased during the closed-loop cycle process, heating the straw powder to achieve the purpose of removing moisture, avoiding mildew, reducing the weight of the straw powder, and reducing the transportation cost. After the classification by the classifier rotor 1201 is completed, since the size of the ground straw particles is larger than that of the dust particles, by selecting a suitable cyclone dust collector 4, the impurities can be discharged from above, and the straw particles are collected through the storage tank 5. By the combined use of the primary classification component 11 and the cyclone dust collector 4, the effect of multi-stage separation can be achieved, improving the separation efficiency of the dust, and thus improving the product purity of the straw powder.

[0053] It should be noted that the above specific embodiments are only the preferred embodiments of the present invention and the applied technical principles. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these transformations do not deviate from the spirit of the present invention, they should be within the protection scope of the present invention. In addition, some terms used in the description and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A straw mill with cyclone dust and moisture removal function, characterized in that: The invention comprises a grinding machine tank body (1), wherein the grinding machine tank body (1) is arranged in three sections, and a lower tank body (101), a middle tank body (102) and an upper tank body (103) are detachably mounted thereon from bottom to top. A grinding assembly (9) is arranged at the axis of the lower tank body (101), and the grinding assembly (9) comprises a grinding roller frame (903) mounted with a plurality of grinding roller bodies. A grinding wall (13) capable of being mutually fitted with the grinding roller bodies is arranged on the outer side of the grinding roller frame (903), and the grinding wall (13) is detachably mounted on the inner side of the lower tank body (101). A primary classification assembly (11) for primary classification according to powder particle size is mounted at the axis of the middle tank body (102), and the primary classification assembly (11) comprises a bottom opening facing the grinding assembly (9). The upper tank body (103) has a cone (1102), a secondary grading component (12) located above the primary grading component (11) is installed at the axis of the upper tank body (103), the secondary grading component (12) comprising a rotatable grading machine rotor (1201) for collecting straw powder after primary grading, a pre-sorting component (3) is arranged on the outside of the grinding mill tank body (1), the pre-sorting component (3) is used to transport the straw powder below upward, the pre-sorting component (3) comprises a feeding pipe (302) extending to the inside of the primary grading component (11), a discharge port (106) is arranged at the top end of the upper tank body (103), one end of the discharge port (106) is connected to a cyclone dust collector (4) through a pipe, and the bottom of the cyclone dust collector (4) is connected to a storage box (5).

2. A straw mill with cyclone dust and moisture removal function according to claim 1, characterized in that: The primary classification component (11) further comprises a cylinder (1101) and an outer connecting block (1103), wherein the cylinder (1101) is located at the top of the cone (1102), and the cylinder (1101) and the cone (1102) are fixedly mounted on the inner side of the middle tank body (102) via the outer connecting block (1103); a discharge pipe (1104) is provided at the top of the cylinder (1101), and the discharge pipe (1104) is located at the axis of the cylinder (1101), and its top opening extends to the interior of the upper tank body (103); and one end of the feeding pipe (302) passes through the cylinder (1101) and extends to the interior thereof.

3. The straw mill with cyclone dust and moisture removal function according to claim 2, characterized in that: The grinding assembly (9) further comprises a middle rotating shaft (901), a material-throwing rotating disc (902), a material-throwing disc (904) and a triangular push block (907); the bottom end of the middle rotating shaft (901) is connected to a transmission assembly (7) for driving the middle rotating shaft (901) to rotate; a rotating shaft support seat (16) sleeved on the outside of the middle rotating shaft (901) is detachably mounted on the inner side of the lower tank body (101); an inwardly inclined material-gathering inclined surface (104) is mounted on the inner side of the lower tank body (101); the material-throwing rotating disc (902) is rotatably mounted on the material-gathering inclined surface (104) 04), the material-throwing turntable (902) is fixedly connected to the middle rotating shaft (901), and a plurality of triangular push blocks (907) are fixedly installed on the outer side of the material-throwing turntable (902), and the triangular push blocks (907) are used to push the straw powder above the aggregate slope (104). The other end of the feeding pipe (302) passes through the lower tank body (101) and extends to the top of the aggregate slope (104). The material-throwing turntable (904) is located at the top of the middle rotating shaft (901) and is located below the bottom opening direction of the cone (1102).

4. The straw mill with cyclone dust and moisture removal function according to claim 3, characterized in that: The pre-sorting component (3) further comprises a constant temperature protective sleeve (301), an electric heating pipe (303) and a fan (15); the electric heating pipe (303) is evenly wound around the outside of the feeding pipe (302); the constant temperature protective sleeve (301) is used to cover the electric heating pipe (303); and the part of the feeding pipe (302) located outside the grinding mill tank (1) is equipped with a fan (15) for conveying straw powder.

5. The straw mill with cyclone dust and moisture removal function according to claim 3, characterized in that: A gap is left between the grinding wall (13) and the material-throwing turntable (902). A plurality of cleaning components (10) for cleaning debris on the side of the grinding wall (13) are arranged below the material-throwing turntable (902). The cleaning components (10) include a one-way valve (1001), an airbag body (1002), an air jet pipe (1003) and a nozzle (1004). The airbag body (1002) is installed above the height adjustment component (14). The one-way valve (1001) is located at one end of the airbag body (1002). The air jet pipe (1003) is connected to the other end of the airbag body (1002). The top end of the air jet pipe (1003) extends to the top of the grinding wall (13). The nozzle (1004) is detachably mounted on the end of the air jet pipe (1003). The bottom end of the material-throwing turntable (902) is provided with an extrusion component for pressing the airbag body (1002).

6. The straw mill with cyclone dust and moisture removal function according to claim 5, characterized in that: The extrusion assembly comprises a bottom pressing rod (905) detachably mounted on the bottom end of the material-throwing turntable (902) and a rotating wheel (906) rotatably mounted on the end of the bottom pressing rod (905); when the material-throwing turntable (902) rotates, the rotating wheel (906) can press the multiple airbag bodies (1002).

7. The straw mill with cyclone dust and moisture removal function according to claim 5, characterized in that: The height adjustment component (14) is used to change the gas flow rate of the jet gas output by the airbag body (1002) for cleaning the grinding wall (13). The height adjustment component (14) comprises an airbag mounting plate (1401), a mounting plate connecting rod (1402), a synchronous push plate (1403) and an electric push rod (1404). The airbag mounting plate (1401) is located above the rotating shaft support seat (16) and is used to fix and install multiple airbag bodies (1002). The multiple mounting plate connecting rods (1402) are arranged at equal distances. The electric push rod (1404) is disposed at the bottom end of the airbag mounting plate (1401), the mounting plate connecting rod (1402) penetrates and extends to the bottom of the rotating shaft support seat (16), the synchronous push plate (1403) is located at the end of the mounting plate connecting rod (1402), the telescopic end of the electric push rod (1404) is fixedly connected to the bottom end of the synchronous push plate (1403), and a plurality of push rod mounting blocks (108) are arranged on the inner side of the lower tank body (101), and the electric push rod (1404) is fixedly mounted on the top of the push rod mounting block (108).

8. The straw mill with cyclone dust and moisture removal function according to claim 5, characterized in that: A discharge slope (107) is provided at the bottom end of the middle tank body (102), the nozzle (1004) is fixedly installed below the discharge slope (107), and the jet pipe (1003) located outside the middle tank body (102) and the jet pipe (1003) located inside the middle tank body (102) are plug-connected.

9. The straw mill with cyclone dust and moisture removal function according to claim 8, characterized in that: A classifier motor (1202) for driving the classifier rotor (1201) to rotate is disposed at the top of the upper tank body (103); the discharge pipe (1104) is located above the cylinder (1101) and is provided with an inclined surface for guiding straw powder; a feed port (105) is provided on one side of the middle tank body (102); the feed port (105) is located above the discharge inclined surface (107).

10. The straw mill with cyclone dust and moisture removal function according to claim 3, characterized in that: The transmission assembly (7) comprises a first pulley (701), a transmission belt (702), a second pulley (703) and a driving motor (704); the first pulley (701) is mounted on the bottom end of the middle rotating shaft (901); the second pulley (703) is located on one side of the grinding mill tank (1); the second pulley (703) is connected to the output end of the driving motor (704); and the first pulley (701) and the second pulley (703) are connected via the transmission belt (702).

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