Microbial fertilizer screening and drying device

Abstract

The utility model relates to the technical field of microbial fertilizer production and discloses a microbial fertilizer screening and drying device which comprises a screening box, a feeding mechanism is arranged on the left side of the top of the screening box, an air inlet pipe is arranged on the right side of the top of the screening box, a screening barrel is installed in the screening box, and a first discharging pipe and a second discharging pipe are arranged at the bottom of the screening box. The screening barrel penetrates through the two partition plates, and a first motor used for driving the screening barrel to rotate is installed at the right end of the screening box. The feeding mechanism comprises a buffering box, a feeding hopper is arranged on the top of the buffering box, an inner barrel is arranged in the buffering box, a feeding pipe is connected to the bottom of the inner barrel through a discharging pipe, a rotating shaft is installed in the feeding pipe, and spiral blades are installed on the outer side of the rotating shaft. A second motor used for driving the rotating shaft to rotate is installed at the left end of the screening box. A communicating pipe connected to the temporary storage box is installed on the left side of the top of the screening box. The fertilizer screening and drying device integrates the functions of screening and drying the fertilizer, can preheat the fertilizer and improve the drying efficiency, thereby improving the production efficiency of the microbial fertilizer.

Description

Technical Field

[0001] The utility model relates to the technical field of microbial fertilizer production, in particular to a screening and drying device for microbial fertilizer. Background Art

[0002] The fermentation principle of microbial organic fertilizer is that aerobic fermentation is a process in which aerobic microorganisms, through their own catabolic and anabolic processes, decompose and oxidize part of the organic matter into simple inorganic substances, obtain the energy required for microbial metabolism from them, and at the same time convert part of the organic matter into new cell substances, enabling the growth and reproduction of microorganisms and generating more organisms. The technological process of granular microbial fertilizer is: fermentation raw materials, pretreatment, mixing, fermentation, re-modulation, granulation, drying, screening, packaging and other processes.

[0003] Currently, drying and screening belong to separate working methods, and it is difficult to achieve the integration of drying and screening. There are many intermediate links, and the production efficiency of microbial fertilizer is difficult to be further improved. For example, the utility model patent with the publication number CN213855578U discloses an integrated equipment for drying and screening microbial fertilizer, including: a screening mechanism; a driving mechanism, which is detachably arranged at the top left side of the screening mechanism; a drying mechanism and a hot air blower, which are respectively detachably arranged at the top left and right sides of the screening mechanism; it can achieve the integration of drying and screening, save intermediate links, further improve the production efficiency of microbial fertilizer, and the filter screen can vibrate back and forth, and the granulation quality of the screened microbial fertilizer particles is high, greatly meeting the requirements of microbial fertilizer production.

[0004] However, in the above design, after the fertilizer is poured into the hopper, it still needs to go through the process of hot air drying first, and then the screening of microbial fertilizer particles. The processes of drying and screening are still carried out separately, and the improvement of the production efficiency of microbial waste is limited. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is that the existing processes of drying and screening of microbial fertilizer are carried out separately, and the production efficiency is relatively low.

[0006] To solve the above problems, the technical solution of the utility model is: a screening and drying device for microbial fertilizer, including a screening box, the left side of the top of the screening box is provided with a feeding mechanism, a screening cylinder is installed inside, and a discharge pipe one and a discharge pipe two are arranged at the bottom. Both sides inside the screening box are fixedly connected with partition plates, the screening cylinder penetrates through the two partition plates, and a positioning ring for positioning the screening cylinder is fixedly connected to one side of the partition plate. An air inlet pipe is arranged at the top of the right end of the screening box, and a motor one for driving the screening cylinder to rotate is installed at the right end of the screening box;

[0007] The feeding mechanism includes a buffer box, a feeding hopper is arranged at the top of the buffer box, an inner cylinder is arranged inside, the bottom of the inner cylinder is connected with a feeding pipe penetrating through the left end face of the screening cylinder through a discharge pipe, a rotating shaft is installed inside the feeding pipe, a spiral blade is installed on the outer side of the rotating shaft, a second motor for driving the rotating shaft to rotate is installed at the left end of the screening box, a communicating pipe connecting to the buffer box is installed on the upper left side of the top of the screening box, and an exhaust pipe is arranged at the upper part of the side of the buffer box.

[0008] Further, an opening is arranged at the right end of the screening cylinder, and a plurality of inclined guide plates are fixedly connected to the inner wall thereof.

[0009] Further, an annular groove is formed in the middle inside the positioning ring, and a limiting ring located inside the annular groove is fixedly connected to the outer side of the screening cylinder.

[0010] Further, a fixing frame with a cross-shaped structure is installed inside the screening box on the output shaft of the first motor, and connecting plates connected to the screening cylinder are fixedly connected to the four edges of the fixing frame.

[0011] Further, a heating cavity is formed between the inner cylinder and the buffer box, a spiral guide plate is arranged inside the heating cavity, and a drain pipe is arranged at one side of the bottom of the heating cavity.

[0012] Further, an induced draft fan is installed at the end of the exhaust pipe.

[0013] Further, a plurality of electric heating tubes are installed on the inner wall of the screening box.

[0014] The advantages of the present utility model compared with the existing technology are as follows: The first motor of the present utility model drives the screening cylinder to rotate to realize the screening of fertilizers, the cooperation of the electric heating tubes and the hot air blower realizes the drying of fertilizers, and the hot air flow inside the screening box is input into the heating cavity through the communicating pipe to realize the preheating of fertilizers, thereby improving the drying efficiency. The present utility model integrates the screening and drying of fertilizers, can preheat fertilizers, improves the drying efficiency, and thus improves the production efficiency of microbial fertilizers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the present utility model.

[0016] Figure 2 is a sectional view of the present utility model Figure 1 .

[0017] Figure 3 is a sectional view of the present utility model Figure 2 .

[0018] Figure 4 is the enlarged view of the structure at A in the present utility model Figure 3 in.

[0019] As shown in the figure: 1. Screening box; 2. Screening cylinder; 3. First discharge pipe; 4. Second discharge pipe; 5. Partition board; 6. Positioning ring; 7. Air inlet pipe; 8. First motor; 9. Feeding guide plate; 10. Limit ring; 11. Fixing bracket; 12. Connecting plate; 13. Buffer box; 14. Feed hopper; 15. Inner cylinder; 16. Discharge pipe; 17. Feeding pipe; 18. Rotating shaft; 19. Spiral blade; 20. Second motor; 21. Connecting pipe; 22. Exhaust pipe; 23. Flow guide plate; 24. Drain pipe; 25. Induced draft fan; 26. Electric heating pipe. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] As Figure 1 , Figure 3 and Figure 4 shown, the microbial fertilizer screening and drying device includes a screening box 1. One side of the top of the screening box 1 is provided with a feeding mechanism, and a screening cylinder 2 is installed inside. The bottom is provided with a first discharge pipe 3 and a second discharge pipe 4. Both sides inside the screening box 1 are fixedly connected with partition boards 5. The screening cylinder 2 penetrates through the two partition boards 5. The right end of the screening cylinder 2 is provided with an opening, and a plurality of inclined feeding guide plates 9 are fixedly connected to its inner wall. One side of the partition board 5 is fixedly connected with a positioning ring 6 for positioning the screening cylinder 2. An annular groove is opened in the middle of the inner side of the positioning ring 6. The outer side of the screening cylinder 2 is fixedly connected with a limit ring 10 located inside the annular groove. The top of the side of the screening box 1 away from the feeding mechanism is provided with an air inlet pipe 7. The right end of the screening box 1 is installed with a first motor 8 for driving the screening cylinder 2 to rotate. The output shaft of the first motor 8 is installed with a cross-shaped fixing bracket 11 inside the screening box 1. Four edges of the fixing bracket 11 are fixedly connected with connecting plates 12 connected to the screening cylinder 2. A plurality of electric heating pipes 26 are installed on the inner wall of the screening box 1.

[0022] The first motor 8 drives the fixing bracket 11 to rotate. The fixing bracket 11 drives the screening cylinder 2 to rotate through the connecting plates 12. The inclined feeding guide plates 9 can convey the microbial fertilizer in the direction of the opening at the right end of the screening cylinder 2. During the conveying process, the small-particle fertilizer passes through the sieve holes on the screening cylinder 2 and falls, and is located between the two partition boards, and then is discharged through the first discharge pipe 3. The large-particle fertilizer falls through the opening at the right end of the screening cylinder 2 and is discharged through the second discharge pipe 4.

[0023] Connect the intake pipe 7 to the hot air blower. When the hot air blower is working, the hot air generated enters the inside of the screening box 1 through the intake pipe 7 and moves from the right end to the left end of the screening cylinder 2. Combined with the electric heating tube 26 to heat the inside of the screening box 1, the drying of fertilizers can be realized. The cooperation of the electric heating tube 26 and the hot air blower can improve the fertilizer drying rate.

[0024] As Figure 2 and Figure 3 shown, the feeding mechanism includes a buffer box 13. A feeding hopper 14 is provided at the top of the buffer box 13, and an inner cylinder 15 is provided inside. The bottom of the inner cylinder 15 is connected to a feeding pipe 17 that penetrates the left end face of the screening cylinder 2 through a discharge pipe 16. A rotating shaft 18 is installed inside the feeding pipe 17, and a spiral blade 19 is installed on the outside of the rotating shaft 18. A second motor 20 for driving the rotating shaft 18 to rotate is installed at the left end of the screening box 1. A communication pipe 21 connected to the buffer box 13 is installed on the left side of the top of the screening box 1. An exhaust pipe 22 is provided on the upper part of the side of the buffer box 13. A heating chamber is formed between the inner cylinder 15 and the buffer box 13. A spiral guide plate 23 is provided inside the heating chamber, and a drain pipe 24 is provided on one side of the bottom of the heating chamber. An induced draft fan 25 is installed at the end of the exhaust pipe 22.

[0025] The hot air flow inside the screening box 1 enters the heating chamber through the communication pipe 21, which can realize the preheating of the fertilizers in the inner cylinder 15. The second motor 20 drives the spiral blade 19 to rotate through the rotating shaft 18, and can transport the preheated fertilizers into the screening cylinder 2 for further drying and screening. The setting of the spiral guide plate 23 can increase the time of the hot air flow inside the heating chamber and improve the preheating effect.

[0026] In specific use, a temperature sensor is installed inside the screening box 1 to monitor the temperature. Fertilizers are added into the inner cylinder 15 through the feeding hopper 14. The hot air blower and the electric heating tube 26 are turned on to heat the temperature inside the screening box 1 to the set value. The hot air flow enters the heating chamber through the communication pipe 21 to realize the preheating of the fertilizers. The first motor 8 and the second motor 20 are turned on. The second motor 20 drives the spiral blade 19 to rotate to transport the fertilizers into the screening cylinder 2. The first motor 8 drives the screening cylinder 2 to rotate to realize the screening of the fertilizers. The screening cylinder 2 transports the fertilizers to the right end of the screening box 1 through the guide plate 9. The fertilizers are continuously heated and dried during the transportation process and are screened at the same time.

[0027] The parts not disclosed in the present utility model are all prior arts, and their specific structures and working principles will not be elaborated herein.

[0028] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0030] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. Microbial fertilizer screening and drying device, including a screening box (1), a feeding mechanism is provided on the left side of the top of the screening box (1), a screening cylinder (2) is installed inside, and a first discharge pipe (3) and a second discharge pipe (4) are provided at the bottom, characterized in that: On both sides inside the screening box (1), partition plates (5) are fixedly connected. The screening cylinder (2) penetrates through the two partition plates (5). On one side of the partition plate (5), a positioning ring (6) for positioning the screening cylinder (2) is fixedly connected. At the top of the right end of the screening box (1), an air inlet pipe (7) is provided, and a first motor (8) for driving the screening cylinder (2) to rotate is installed at the right end of the screening box (1). The feeding mechanism includes a buffer box (13). At the top of the buffer box (13), a feeding hopper (14) is provided. Inside, there is an inner cylinder (15). The bottom of the inner cylinder (15) is connected by a discharge pipe (16) to a feeding pipe (17) that penetrates through the left end face of the screening cylinder (2). Inside the feeding pipe (17), a rotating shaft (18) is installed. On the outer side of the rotating shaft (18), a spiral blade (19) is installed. At the left end of the screening box (1), a second motor (20) for driving the rotating shaft (18) to rotate is installed. On the left side of the top of the screening box (1), a communicating pipe (21) connected to the buffer box (13) is installed. At the upper part of the side of the buffer box (13), an exhaust pipe (22) is provided.

2. The microbial fertilizer screening and drying device according to claim 1, characterized in that: The right end of the screening cylinder (2) is provided with an opening, and a plurality of inclined guide plates (9) are fixedly connected to its inner wall.

3. The microbial fertilizer screening and drying device according to claim 1, wherein: In the middle inside the positioning ring (6), an annular groove is formed. On the outer side of the screening cylinder (2), a limiting ring (10) located inside the annular groove is fixedly connected.

4. The microbial fertilizer screening and drying device according to claim 1, wherein: The output shaft of the first motor (8) is installed with a cross-shaped fixing frame (11) inside the screening box (1). At the four edges of the fixing frame (11), connecting plates (12) connected to the screening cylinder (2) are fixedly connected.

5. The microbial fertilizer screening and drying device according to claim 1, characterized in that: A heating chamber is formed between the inner cylinder (15) and the buffer box (13). Inside the heating chamber, a spiral guide plate (23) is provided, and at one side of the bottom of the heating chamber, a drain pipe (24) is provided.

6. The microbial fertilizer screening and drying device according to claim 1, characterized in that: At the end of the exhaust pipe (22), an induced draft fan (25) is installed.

7. The microbial fertilizer screening and drying device according to claim 1, characterized in that: On the inner wall of the screening box (1), a plurality of electric heating tubes (26) are installed.

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