Drum-type mixing device for production of organic compound fertilizer and use method of drum-type mixing device

Abstract

The invention relates to the technical field of mixing, in particular to a drum-type mixing device for organic compound fertilizer production. The supporting frame is fixedly arranged on the supporting bottom plate; the screening cylinder is fixedly arranged on the supporting frame and used for screening the raw materials; the crushing mechanism is fixedly arranged on the screening cylinder and is used for crushing the raw materials; the screening mechanism is movably arranged in the screening cylinder and is used for classifying the raw materials crushed by the crushing mechanism according to specifications; the invention further provides a using method of the drum-type mixing device for organic compound fertilizer production, firstly, materials are poured into the reinforcing shell in the device, the servo motor is started, the crushing roller fixedly arranged at the output end of the servo motor rotates, the rotating crushing roller can crush the materials, and then the materials are mixed uniformly; crushed raw materials are conveyed to the screening mechanism through a treatment opening in the screening cylinder, and the screened materials can be fully mixed with other materials in order to control the size of the screened materials.

Description

Technical Field

[0001] The invention relates to the technical field of mixing, in particular to a drum-type mixing device for producing organic compound fertilizer and a use method thereof. Background Art

[0002] In the production process of organic compound fertilizer, mixing is a crucial link, which is directly related to the uniformity, fertilizer efficiency and final product quality of the fertilizer. In this process, organic matter (such as animal and plant residues, livestock and poultry manure, crop straw, etc.) is first pretreated, such as composting, drying, crushing, etc., to improve its fertility and processing performance. At the same time, inorganic fertilizers (such as nitrogen fertilizers, phosphate fertilizers, potassium fertilizers, etc.) are crushed, screened and blended, and the proportion of their nutrients is adjusted to prepare an inorganic fertilizer formula that meets the needs. Then, according to the product formula, the pretreated organic matter and inorganic fertilizer are mixed in a certain proportion. This step requires accurate calculation of the amount of various raw materials to ensure that the mixed fertilizer has the appropriate nutrient content and proportion.

[0003] During the mixing process, the raw materials are generally ground thoroughly to ensure that the materials can be fully mixed. However, during the grinding process, materials with different particle sizes may appear. When the equipment is stirring and mixing, larger particles are difficult to mix with the raw materials and these larger block-shaped particles are not easily crushed by stirring, thus affecting the quality of the product.

[0004] Therefore, it is necessary to provide a drum-type mixing device for producing organic compound fertilizer and a method for using the same to solve the above problems.

[0005] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0006] Based on the above problems existing in the prior art, the problem to be solved by the present application is that organic compound fertilizer materials with different particle sizes may appear during the grinding process. When the equipment is stirring and mixing, larger particles are difficult to mix with the raw materials and these larger block-shaped particles are not easily crushed by stirring, thereby affecting the quality of the product.

[0007] The technical solution adopted by the present application to solve the technical problem is: a drum-type mixing device for producing organic compound fertilizer, comprising: Support base plate; A support frame, fixedly arranged on the support bottom plate; A screening cylinder, fixedly arranged on the support frame, for screening the raw materials; A crushing mechanism, fixedly arranged on the screening cylinder, is used for crushing the raw materials; A screening mechanism, movably arranged in the screening cylinder, is used to classify the raw materials crushed by the crushing mechanism according to the size of the specifications; A support column is fixedly arranged on the support base plate, and a plurality of the support columns are arranged parallel to each other; A mixing drum, fixedly arranged on the supporting column; The stirring mechanism is rotatably arranged in the stirring drum and is used for stirring and mixing the materials in the stirring drum.

[0008] Preferably, the crushing mechanism includes a reinforcement shell fixedly arranged on the screening drum, the reinforcement shell is rotatably arranged with two crushing rollers in the axial direction, a servo motor is fixedly arranged on the outer wall of the reinforcement shell, the output end of the servo motor is fixedly connected to the crushing roller, and the two crushing rollers are connected by gear transmission.

[0009] Preferably, the reinforcement shell is funnel-shaped with a small bottom and a large top, and two mirror-symmetrical blanking plates are fixedly arranged in the reinforcement shell. The blanking plates are inclined, and the length of the blanking plates is not less than the diameter length of the crushing roller. The blanking plates are located above the two crushing rollers.

[0010] Preferably, the screening mechanism includes a screening unit rotatably arranged in a screening cylinder, the screening unit is composed of a large screening plate and a small screening plate stacked together, and the two screening plates are provided with screening holes of equal diameters, the large screening plate is provided with a control unit for controlling the size of materials screened by the screening unit, an auger for driving the movement of internal materials is rotatably arranged in the small screening plate, a plurality of cylinders penetrating the auger are fixedly arranged on the blades of the auger, and a plurality of turning leaves for secondary turning of the materials are fixedly arranged on the cylinders, and a first transmission unit for controlling the rotation rate of the auger is arranged between the auger and the crushing mechanism.

[0011] Preferably, the control unit includes an adjustment ring fixedly arranged on the outer circumference of the large screening plate, a plurality of anti-slip edges are fixedly arranged on the outer circumference of the adjustment ring, and a bolt is rotatably arranged on the screening cylinder, one end of the bolt is against the outer wall of the large screening plate.

[0012] Preferably, the first transmission unit comprises two pulleys 1 fixedly arranged on the auger and the crushing roller, and the two pulleys 1 are connected via a belt transmission.

[0013] Preferably, the stirring mechanism includes a stirring shaft rotatably arranged in a stirring drum, a plurality of stirring rods are fixedly arranged on the outer circumferential surface of the stirring shaft, and the plurality of stirring rods are staggered, and the screening mechanism is provided with a second transmission unit between the stirring shafts to control the rotation of the stirring shaft.

[0014] Preferably, the second transmission unit includes a shaft body rotatably arranged on a supporting base plate, a reinforcement plate for reinforcing the shaft body is fixedly arranged on the support frame, a bevel gear 1 is fixedly arranged on the shaft body, a bevel gear 2 meshing with the bevel gear 1 is fixedly arranged on the auger, a pulley 2 is fixedly arranged on the outer peripheral surface of the shaft body, and the two pulleys 2 are connected by a belt transmission.

[0015] Preferably, a connecting plate is fixedly provided on the stirring shaft, a scraper is fixedly provided on the connecting plate, the scraper is fitted with the inner wall of the stirring drum, a lower hopper is fixedly provided at the bottom of the stirring drum, and the length of the lower hopper is not less than the diameter of the stirring drum.

[0016] A method for using a drum-type mixing device for producing organic compound fertilizer is also proposed, which is carried out using the above-mentioned device and includes the following steps: S1. Put the proportioned materials into the crushing mechanism; S2, the material falls into the screening cylinder after being processed by the crushing mechanism; S3. The falling materials fall into the mixing drum for mixing.

[0017] The beneficial effects of the present application are as follows: the present application provides a drum-type mixing device for the production of organic compound fertilizer and a method of using the same. Through the crushing mechanism arranged on the screening drum, the staff can first pour the material into the reinforced shell in the device when using the device, start the servo motor, so that the crushing roller fixedly arranged on the output end of the servo motor rotates, and the rotating crushing roller can crush the material. The crushed raw material is transported to the screening mechanism through the processing port in the screening drum. In order to control the size of the screened material so that it can be fully mixed with other materials, the staff adjusts and rotates the large screening plate through the adjusting ring so that the screening holes on the large screening plate and the small screening plate are staggered, thereby screening and changing the size of the discharge hole. The material that does not meet the specification size will be removed by the rotation of the auger, and the screened material can enter the mixing drum for stirring and mixing.

[0018] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention Figure 1 ; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4It is a schematic diagram of the explosion structure of the screening mechanism of the present invention; Figure 5 It is a schematic diagram of the structure of the screening unit of the present invention; Figure 6 It is a schematic diagram of the local structure of the present invention Figure 1 ; Figure 7 It is a schematic diagram of the internal structure of the crushing mechanism of the present invention; Figure 8 It is a side structural schematic diagram of the present invention.

[0020] In the figure: 1. supporting bottom plate; 2. supporting frame; 3. screening cylinder; 31. reinforcing shell; 311. unloading plate; 32. crushing roller; 33. servo motor; 330. screening unit; 331. large screening plate; 3311. adjusting ring; 3312. anti-skid edge; 3313. bolt; 332. small screening plate; 333. screening hole; 334. auger; 3341. cylinder; 3342. flip leaf; 335. pulley one; 336. belt one; 34. gear; 4. supporting column; 5. mixing cylinder; 51. mixing shaft; 511. mixing rod; 52. connecting plate; 53. scraper; 6. shaft body; 61. reinforcing plate; 62. bevel gear one; 63. bevel gear two; 64. pulley two; 65. belt two; 7. unloading hopper. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0023] Reference Figure 1-3A drum-type mixing device for producing organic compound fertilizer comprises: a supporting bottom plate 1; a supporting frame 2, which is fixedly arranged on the supporting bottom plate 1; a screening drum 3, which is fixedly arranged on the supporting frame 2 and is used for screening raw materials; a crushing mechanism, which is fixedly arranged on the screening drum 3 and is used for crushing and processing the raw materials; a screening mechanism, which is movably arranged in the screening drum 3 and is used for classifying and processing the raw materials crushed by the crushing mechanism according to the size; a supporting column 4, which is fixedly arranged on the supporting bottom plate 1, and a plurality of supporting columns 4 are arranged parallel to each other; a mixing drum 5, which is fixedly arranged on the supporting column 4; a mixing mechanism, which is rotatably arranged in the mixing drum 5 and is used for mixing and mixing the materials in the mixing drum 5.

[0024] Reference Figure 1 , 4 5. The crushing mechanism includes a reinforcement shell 31 fixedly arranged on the screening drum 3, and two crushing rollers 32 are rotatably arranged in the axial direction of the reinforcement shell 31. A servo motor 33 is fixedly arranged on the outer wall of the reinforcement shell 31, and the output end of the servo motor 33 is fixedly connected to the crushing roller 32, and the two crushing rollers 32 are connected by a gear 34. Through the reinforcement shell 31 arranged on the screening drum 3 and the crushing roller 32 rotatably arranged in the reinforcement shell 31, when the staff starts the servo motor 33, the crushing roller 32 fixedly arranged on the output end of the servo motor 33 rotates, and the other crushing roller 32 can be driven by the gear 34, so that the two crushing rollers 32 can rotate towards each other to realize the crushing of the materials dumped into the device.

[0025] Reference Figure 6-8 The reinforcement shell 31 is funnel-shaped with a small bottom and a large top, and two mirror-symmetrical unloading plates 311 are fixedly arranged in the reinforcement shell 31. The unloading plates 311 are inclined, and the length of the unloading plates 311 is not less than the diameter of the crushing roller 32. The unloading plates 311 are located above the two crushing rollers 32. By setting the reinforcement shell 31 to be funnel-shaped with a small bottom and a large top, the crushed materials can be freely scattered at the bottom of the reinforcement shell 31 by their own gravity. The unloading plates 311 arranged in the reinforcement shell 31 can enable the staff to add materials, and the materials can slide along the unloading plates 311 to avoid falling into the corners of the device during the falling process, thereby ensuring that the materials can be fully crushed.

[0026] Reference Figure 1 , 45. The screening mechanism includes a screening unit 330 rotatably arranged in the screening cylinder 3. The screening unit 330 is composed of a large screening plate 331 and a small screening plate 332 superimposed and combined. The large screening plate 331 and the small screening plate 332 are both provided with screening holes 333 of equal diameter. The large screening plate 331 is provided with a control unit for controlling the screening size of the screening unit 330. The small screening plate 332 is rotatably provided with an auger 334 for driving the internal material to move. The blades of the auger 334 are fixedly provided with a plurality of cylinders 3341 penetrating the auger 334. The plurality of cylinders 3341 are fixedly provided with flipping leaves 3342 for secondary flipping of the material. A first transmission unit for controlling the rotation rate of the auger 334 is provided between the auger 334 and the crushing mechanism. The large screening plate 331 and the small screening plate 332 ensure that the crushed materials enter the screening unit 330, and the rotating auger 334 can flip and push the materials to move, and through the cylinder 3341 arranged on the blades of the auger 334 and the flip leaves 3342 fixed on the cylinder 3341, it is achieved that in the process of the auger 334 pushing the materials, the rotating flip leaves 3342 can perform a secondary flipping on the materials, the debris stuck together after crushing can be broken up, and small materials can be screened out more easily, and the crushed materials whose size can pass through the screening hole 333 can enter the next step, and some larger material particles that cannot pass through the screening hole 333 will be discharged through the discharge port by the rotating auger 334, and then collected and processed by the staff, which is convenient for secondary processing.

[0027] Reference Figure 1 , 2 4. The control unit includes an adjusting ring 3311 fixedly arranged on the outer circumference of the large screening plate 331, and a plurality of anti-slip edges 3312 are fixedly arranged on the outer circumference of the adjusting ring 3311, and a bolt 3313 is rotatably arranged on the screening cylinder 3, and one end of the bolt 3313 is abutted against the outer wall of the large screening plate 331. When the staff needs to adjust the screening hole 333 to screen the material size, the staff drives the large screening plate 331 to rotate through the adjusting ring 3311, and the screening holes 333 between the large screening plate 331 and the small screening plate 332 are staggered, so as to control the size of the material particles passing through the screening hole 333. After the adjustment is completed, the staff rotates the bolt 3313 again, so that the bolt 3313 is abutted against the internal small screening plate 332, so as to fix the large screening plate 331, ensure the stability of the screening unit 330 when in use, and realize screening of materials of different specifications and sizes.

[0028] Reference Figure 1-2The first transmission unit includes two pulleys 335 fixedly arranged on the auger 334 and the crushing roller 32, and the two pulleys 335 are connected by a belt 336. By setting the pulley 335 on the auger 334 and the crushing roller 32, when the staff starts the servo motor 33 to drive the crushing roller 32 to rotate, the pulley 335 fixedly connected to the crushing roller 32 rotates, and the rotating pulley 336 can drive the pulley 335 on the auger 334 to rotate through the belt 335. The rotation rate of the auger 334 can be controlled by controlling the rotation speed of the servo motor 33.

[0029] Reference Figure 1-3 The stirring mechanism includes a stirring shaft 51 rotatably arranged in the stirring drum 5, a plurality of stirring rods 511 are fixedly arranged on the outer circumferential surface of the stirring shaft 51, and the plurality of stirring rods 511 are staggeredly arranged, and the screening mechanism is provided with a second transmission unit for controlling the rotation of the stirring shaft 51 between the stirring shafts 51. By means of the stirring shaft 51 arranged in the stirring drum 5, when the stirring shaft 51 rotates, the rotating stirring shaft 51 can stir and mix the materials in the stirring drum 5.

[0030] Reference Figure 1 , 2 and 6, the second transmission unit includes a shaft body 6 rotatably set on the supporting base plate 1, a reinforcement plate 61 for reinforcing the shaft body 6 is fixedly set on the support frame 2, a bevel gear 62 is fixedly set on the shaft body 6, a bevel gear 63 meshing with the bevel gear 62 is fixedly set on the auger 334, and a pulley 64 is fixedly set on the outer peripheral surface of the shaft body 6 and the stirring shaft 51, and the two pulleys 64 are connected by a belt 65 for transmission. When the auger 334 rotates, the bevel gear 63 fixed on the auger 334 rotates, and the rotating bevel gear 63 can drive the bevel gear 62 meshing with it to rotate, and the rotating bevel gear 62 can drive the shaft body 6 to rotate, and the pulley 64 fixed on the shaft body 6 rotates, and the rotating pulley 64 drives the stirring shaft 51 to rotate through the belt 65, so as to achieve stirring of the material in the mixing drum 5.

[0031] Reference Figure 1-3 A connecting plate 52 is fixedly provided on the stirring shaft 51, and a scraper 53 is fixedly provided on the connecting plate 52. The scraper 53 fits the inner wall of the stirring drum 5. By means of the connecting plate 52 provided on the stirring shaft 51 and the scraper 53 fixedly provided on the connecting plate 52, it is achieved that when the scraper 53 rotates, the scraper 53 can scrape off the material on the inner wall of the stirring drum 5, so as to avoid the scraping off of the material attached to the inner wall of the stirring drum 5 when the device is stirring and mixing, and to avoid the adhesion and accumulation of the material in the stirring drum 5 when the device is operating.

[0032] Reference Figure 6A lower hopper 7 is fixedly arranged at the bottom of the mixing drum 5, and the length of the lower hopper 7 is not less than the diameter of the mixing drum 5. The lower hopper 7 arranged on the mixing drum 5 is used to realize directional discharge processing of the material in the mixing drum 5.

[0033] A method for using a drum-type mixing device for producing organic compound fertilizer is also proposed, which is carried out using the above-mentioned device and includes the following steps: S1. Put the proportioned materials into the crushing mechanism; S2, the material falls into the screening cylinder 3 after being processed by the crushing mechanism; S3, the falling materials fall into the mixing drum 5 for mixing.

[0034] The specific scheme is as follows: when using the device, first place the device in a suitable position, start the servo motor 33 on the device, pour the material into the reinforcement shell 31 in the device, and the crushing roller 32 fixedly arranged on the output end of the servo motor 33 rotates. The rotating crushing roller 32 can crush the material, and the crushed material can freely fall to the bottom of the reinforcement shell 31 by its own gravity and then enter the screening cylinder 3 of the device. The rotating auger 334 can flip and push the material to move. The material that can pass through the screening hole 333 after crushing can enter the next step. Some larger material particles that cannot pass through the screening hole 333 will be discharged through the discharge port by the rotating auger 334, and then collected and processed by the staff for secondary processing. When it is necessary to adjust the particle size of the screening material by the screening unit 330, the staff drives the large screening plate 331 to rotate through the adjusting ring 3311 The screening holes 333 between the large screening plate 331 and the small screening plate 332 are staggered, so as to control the size of the material particles passing through the screening holes 333. After the adjustment is completed, the staff rotates the bolt 3313 again, so that the bolt 3313 is against the internal small screening plate 332, so as to fix the large screening plate 331, so that materials of various specifications and sizes can be screened, and the screened materials can enter the mixing drum 5 of the device through the discharge port, and when the auger 334 rotates, the bevel gear 2 63 fixed on the auger 334 rotates, and the rotating bevel gear 2 63 can drive the bevel gear 1 62 meshing with it to rotate, and the rotating bevel gear 1 62 can drive the shaft body 6 to rotate, and the pulley 2 64 fixed on the shaft body 6 rotates, and the rotating pulley 2 64 drives the stirring shaft 51 to rotate through the belt 2 65, so as to achieve stirring and mixing of the materials in the mixing drum 5.

[0035] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary, and within the spirit of the present invention, the technical features in the above embodiments or in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0036] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drum-type mixing device for producing organic compound fertilizer, characterized in that: include: A supporting base plate (1); A support frame (2) fixedly arranged on the support base plate (1); A screening cylinder (3) is fixedly arranged on the support frame (2) and is used for screening raw materials; A crushing mechanism, fixedly arranged on the screening cylinder (3), for crushing the raw materials; A screening mechanism, movably arranged in the screening cylinder (3), for classifying the raw materials crushed by the crushing mechanism according to their sizes; A support column (4) is fixedly arranged on the support base plate (1), and a plurality of the support columns (4) are arranged parallel to each other; A mixing drum (5) fixedly arranged on the support column (4); The stirring mechanism is rotatably arranged in the stirring drum (5) and is used to stir and mix the materials in the stirring drum (5).

2. The drum type mixing device for producing organic compound fertilizer according to claim 1, characterized in that: The crushing mechanism comprises a reinforcement shell (31) fixedly arranged on the screening drum (3), the reinforcement shell (31) being rotatably arranged in the axial direction by two crushing rollers (32), a servo motor (33) being fixedly arranged on the outer wall of the reinforcement shell (31), an output end of the servo motor (33) being fixedly connected to the crushing rollers (32), and the two crushing rollers (32) being transmission-connected via gears (34).

3. The drum type mixing device for producing organic compound fertilizer according to claim 2, characterized in that: The reinforcement shell (31) is arranged in a funnel shape with a small bottom and a large top, and two mirror-symmetrical blanking plates (311) are fixedly arranged inside the reinforcement shell (31), the blanking plates (311) are arranged in an inclined manner, the length of the blanking plates (311) is not less than the diameter length of the crushing roller (32), and the blanking plates (311) are located above the two crushing rollers (32).

4. The drum type mixing device for producing organic compound fertilizer according to claim 1, characterized in that: The screening mechanism comprises a screening unit (330) rotatably arranged in a screening cylinder (3), the screening unit being composed of a large screening plate (331) and a small screening plate (332) stacked together, and screening holes (333) of equal diameters are provided on the large screening plate (331) and the small screening plate (332), a control unit for controlling the size of materials screened by the screening unit (330) is provided on the large screening plate (331), an auger (334) for driving internal materials to move is rotatably arranged in the small screening plate (332), a plurality of cylinders (3341) penetrating the auger (334) are fixedly arranged on the blades of the auger (334), a plurality of turning blades (3342) for secondary turning of materials are fixedly arranged on the cylinders (3341), and a first transmission unit for controlling the rotation rate of the auger (334) is provided between the auger (334) and the crushing mechanism.

5. The drum type mixing device for producing organic compound fertilizer according to claim 4, characterized in that: The control unit comprises an adjustment ring (3311) fixedly arranged on the outer circumference of the large screening plate (331), a plurality of anti-slip edges (3312) being fixedly arranged on the outer circumference of the adjustment ring (3311), and a bolt (3313) being rotatably arranged on the screening cylinder (3), one end of the bolt (3313) being abutted against the outer wall of the large screening plate (331).

6. The drum type mixing device for producing organic compound fertilizer according to claim 4, characterized in that: The first transmission unit comprises two belt pulleys (335) fixedly arranged on the auger (334) and the crushing roller (32), and the two belt pulleys (335) are connected to each other through a belt (336).

7. The drum type mixing device for producing organic compound fertilizer according to claim 6, characterized in that: The stirring mechanism comprises a stirring shaft (51) rotatably arranged in a stirring drum (5); a plurality of stirring rods (511) are fixedly arranged on the outer peripheral surface of the stirring shaft (51), and the plurality of stirring rods (511) are arranged in a staggered manner; and the screening mechanism has a second transmission unit arranged between the stirring shafts (51) for controlling the rotation of the stirring shafts (51).

8. The drum-type mixing device for producing organic compound fertilizer according to claim 7, characterized in that: The second transmission unit comprises a shaft (6) rotatably mounted on the support base plate (1); a reinforcement plate (61) for reinforcing the shaft (6) is fixedly mounted on the support frame (2); a bevel gear 1 (62) is fixedly mounted on the shaft (6); a bevel gear 2 (63) meshing with the bevel gear 1 (62) is fixedly mounted on the auger (334); a belt pulley 2 (64) is fixedly mounted on the outer peripheral surface of the shaft (6) and the two belt pulleys 2 (64) are connected to each other by a belt 2 (65).

9. The drum type mixing device for producing organic compound fertilizer according to claim 7, characterized in that: A connecting plate (52) is fixedly provided on the stirring shaft (51), a scraper (53) is fixedly provided on the connecting plate (52), the scraper (53) is in contact with the inner wall of the stirring drum (5), a lower hopper (7) is fixedly provided at the bottom of the stirring drum (5), and the length of the lower hopper (7) is not less than the diameter of the stirring drum (5).

10. A method for using a drum-type mixing device for producing organic compound fertilizer, characterized in that: The method is carried out using the device described in any one of claims 1 to 9, comprising the following steps: S1. Put the proportioned materials into the crushing mechanism; S2, the material is processed by the crushing mechanism and falls into the screening cylinder (3); S3. The falling materials fall into the mixing drum (5) for mixing.

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