Organic fertilizer granulation production system

Abstract

The utility model discloses an organic fertilizer granulation production system which comprises a crusher, a rotary screen, a rotary drum granulator, a drying machine, a cooling machine, a packaging machine, a batching bin, a forklift feeding machine and a double-shaft mixing machine, materials among the devices are conveyed through a belt conveyor, the drying machine comprises a primary drying machine and a secondary drying machine, and the cooling machine comprises a cooling machine and a packing machine. The drum screen comprises a primary drum screen and a secondary drum screen, the batching bin and the forklift feeder are simultaneously connected with the double-shaft mixer through a belt conveyor, and the double-shaft mixer, the drum granulator, the primary dryer, the primary drum screen, the secondary dryer, the secondary drum screen, the cooler and the packaging machine are sequentially connected through a belt conveyor. A crusher is also connected between the secondary drum screen and the drum granulator; and the primary dryer, the secondary dryer and the cooler are also connected with a dust remover. The organic fertilizer granulating device can meet the new requirements of organic fertilizer granulating production.

Description

Technical Field

[0001] The utility model relates to the technical field of organic fertilizer production, in particular to an organic fertilizer granulation production system. Background Art

[0002] Organic fertilizer refers to a fertilizer rich in organic matter and microorganisms made from organic materials such as animal and plant residues, livestock and poultry manure, and domestic garbage through composting, fermentation, and enzymatic processes. In modern industrial production, various organic substances after fermentation are generally further processed and eventually made into granular fertilizers, which are convenient for storage and transportation.

[0003] The existing organic fertilizer granulation process is generally as follows: the fermented and decomposed organic fertilizer raw materials are first conveyed to the crusher by a belt conveyor for crushing, and the crushed materials are conveyed to the drum screen for sorting. The materials that do not meet the specifications are returned to the crusher for further crushing, and the materials that meet the specifications are conveyed to the granulator. After being made into granules, they are dried in a dryer, cooled in a cooler, and finally conveyed to a packaging machine for weighing and packaging. This process and its corresponding production system are relatively crude and cannot meet the new needs of organic fertilizer production. Utility Model Content

[0004] The utility model aims to provide an organic fertilizer granulation production system to meet the new demand of organic fertilizer granulation production.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] An organic fertilizer granulation production system comprises a pulverizer, a drum screen, a rotary drum granulator, a dryer, a cooler and a packaging machine. Materials between the various devices are transported by a belt conveyor. The system also comprises a batching bin, a forklift feeder and a double-shaft mixer. The dryer comprises a primary dryer and a secondary dryer. The drum screen comprises a primary drum screen and a secondary drum screen. The batching bin and the forklift feeder are simultaneously connected to the double-shaft mixer through a belt conveyor. The double-shaft mixer, the rotary drum granulator, the primary dryer, the primary drum screen, the secondary dryer, the secondary drum screen, the cooler and the packaging machine are sequentially connected through the belt conveyor. A pulverizer is also connected between the secondary drum screen and the rotary drum granulator. The primary dryer, the secondary dryer and the cooler are also connected to a dust collector.

[0007] Optionally, the primary drum screen is provided with two discharge ports, namely, a discharge port for materials on the screen and a discharge port for materials below the screen. The discharge port for materials on the screen is connected to the secondary dryer, and the discharge port for materials below the screen is connected to the rotary drum granulator; the secondary drum screen is provided with two discharge ports, namely, a discharge port for finished materials and a discharge port for large-particle materials. The discharge port for finished materials is connected to the cooler, and the discharge port for large-particle materials is connected to the crusher.

[0008] Optionally, a film wrapping machine is also provided between the cooling machine and the packaging machine.

[0009] Optionally, a buffer silo is provided between the film wrapping machine and the packaging machine.

[0010] Optionally, a spray port and an observation port are provided on the top of the housing of the twin-shaft mixer. The spray port is provided next to the feed port, and the observation port is covered with a top cover and is tightly pressed by a pressing assembly.

[0011] Optionally, a drum strip is fixed to the rubber lining of the rotary drum granulator on one side facing the inner wall of the cylinder, air holes are opened at corresponding positions of the cylinder, and a fabric layer is provided in the middle of the rubber lining.

[0012] By adopting the above technical solution, the utility model has the following advantages:

[0013] Compared with the existing organic fertilizer granulation production system, the utility model can first mix the organic fertilizer raw materials with various auxiliary materials (such as inorganic fertilizers such as nitrogen, phosphorus, potassium or other additives) to improve the nutritional quality of the organic fertilizer. In the subsequent granulation process, the materials can also be fully dried step by step through the primary dryer and the secondary dryer, with good drying effect, effectively reducing the probability of the finished materials being affected by moisture and mildew in the later stage; in addition, the secondary drum screen can perform a screening before the finished materials are cooled to control the specifications of the finished materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the equipment layout of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the double-shaft mixer in the utility model;

[0016] Figure 3 It is a structural schematic diagram of the rotary drum granulator of the utility model;

[0017] Figure 4 yes Figure 3 Installation diagram of the middle rubber lining;

[0018] Figure 5 It is a schematic diagram of the structure of the drum bar.

[0019] Figure numerals: 1. batching bin, 2. forklift feeder, 3. double-shaft mixer, 31. spray port, 32. observation port, 33. feed port, 34. top cover, 35. clamping assembly, 36. spray hood, 4. drum granulator, 41. drum strip, 42. air hole, 43. fabric layer, 44. cylinder, 45. driving device, 46. front supporting roller device, 47. rear supporting roller device, 48. long strip pressing plate, 5. primary dryer, 6. primary drum screen, 7. secondary dryer, 8. secondary drum screen, 9. pulverizer, 10. cooler, 11. coating machine, 12. buffer silo, 13. packaging machine, 14. dust collector. DETAILED DESCRIPTION

[0020] In order to make the technical purpose, technical scheme and beneficial effects of the utility model clearer, the following Figure 1-5 The technical solution of the utility model is further illustrated with specific embodiments. Example 1

[0021] An organic fertilizer granulation production system, such as Figure 1 As shown, it includes a crusher 9, a drum screen, a rotary drum granulator 4, a dryer, a cooler 10 and a packaging machine 13. The materials between the devices are transported by a belt conveyor. It also includes a batching bin 1, a forklift feeder 2 and a double-shaft mixer 3. The dryer includes a primary dryer 5 and a secondary dryer 7. The drum screen includes a primary drum screen 6 and a secondary drum screen 8. The batching bin 1 and the forklift feeder 2 are connected to the double-shaft mixer 3 through a belt conveyor at the same time. The double-shaft mixer 3, the rotary drum granulator 4, the primary dryer 5, the primary drum screen 6, the secondary dryer 7, the secondary drum screen 8, the cooler 10 and the packaging machine 13 are connected in sequence through a belt conveyor. A crusher 9 is also connected between the secondary drum screen 8 and the rotary drum granulator 4. The primary dryer 5, the secondary dryer 7 and the cooler 10 are also connected to a dust collector 14.

[0022] Furthermore, the primary drum screen 6 is provided with two discharge ports, namely, a discharge port for materials on the screen and a discharge port for materials below the screen. The discharge port for materials on the screen is connected to the secondary dryer 7, and the discharge port for materials below the screen is connected to the rotary drum granulator 4; the secondary drum screen 8 is provided with two discharge ports, namely, a discharge port for finished materials and a discharge port for large-particle materials. The discharge port for finished materials is connected to the cooler 10, and the discharge port for large-particle materials is connected to the crusher 9.

[0023] Furthermore, a coating machine 11 is provided between the cooling machine 10 and the packaging machine 13. The structure of the coating machine 11 is the same as that of the drum granulator 4, and the coating material such as the coating agent is attached to the surface of the finished product material during rotation to prevent adhesion.

[0024] Furthermore, a buffer silo 12 is provided between the film coating machine 11 and the packaging machine 13. The buffer silo 12 can temporarily store the finished product materials before packaging, thereby alleviating packaging pressure and turnover pressure.

[0025] When the present embodiment is used, the fermented and decomposed organic fertilizer raw material is first mixed with various auxiliary materials (such as inorganic fertilizers such as nitrogen, phosphorus, potassium or other additives) in a double-shaft mixer 3, and the various auxiliary materials are configured in proportion by a batching bin 1. The mixed material enters a drum granulator 4 to be made into granules, and the granulated material enters a primary dryer 5 for drying, and then undergoes a first sorting in a primary drum screen 6. The under-screen material returns to the drum granulator 4 for re-granulation, and the over-screen material enters a secondary dryer 7 for further drying, and then undergoes a second sorting in a secondary drum screen 8. The large-particle material enters a pulverizer 9 for crushing, and then re-enters the drum granulator 4 for granulation after crushing. The finished product material enters a cooler 10 for cooling, and then is coated by a coating machine 11, and then enters a buffer bin 12 for waiting, and a packaging machine 13 weighs and packages the finished product material. Example 2

[0026] On the basis of Example 1, further, Figure 2 As shown, the top of the housing of the twin-shaft mixer 3 is provided with a spray port 31 and an observation port 32. The spray port 31 is provided next to the feed port 33, so as to spray water or other liquids on the material just entering the housing to promote mixing. The observation port 32 is covered with a top cover 34 and is pressed by a clamping assembly 35. The top cover 34 can be quickly locked at the observation port 32 by the clamping assembly 35, which can ensure sealing and facilitate rapid maintenance.

[0027] Specifically, the clamping assembly 35 includes a first hinge seat, a second hinge seat, a pressure rod, a screw and a butterfly nut. The first hinge seat and the second hinge seat are fixed on the shell and are located on both sides of the top cover 34. One end of the pressure rod is hinged to the first hinge seat, and the other end of the pressure rod is provided with a slot that cooperates with the screw. One end of the screw is rotatably connected to the second hinge seat, and the other end of the screw is threadedly connected to the butterfly nut. When the top cover 34 is pressed tightly against the observation port 32, the screw is located in the slot, and the bottom of the butterfly nut is in close contact with the surface of the pressure rod.

[0028] A spray hood 36 and a spray assembly are arranged above the spray port 31. An inspection port is also provided on the top of the spray hood 36. The inspection port is covered with a top cover 34. The top cover 34 is pressed tightly by a pressing assembly 35 and cooperates with the observation port 32 to form a larger total observation area. The spray assembly includes a water inlet main pipe, a water inlet branch pipe and a nozzle. The water inlet main pipe is arranged outside the spray hood 36. A plurality of water inlet branches are arranged and connected to the water inlet main pipe. The water inlet branch pipe extends horizontally into the spray hood 36 and is equipped with a plurality of the nozzles. The nozzles are located above the stirring assembly. The spray hood 36 can arrange the spray assembly above the stirring space without occupying the stirring space in the shell. Example 3

[0029] On the basis of Example 1, further, Figure 4 and Figure 5As shown, a drum strip 41 is fixed to the rubber lining of the rotary drum granulator 4 on the side facing the inner wall of the cylinder 44, an air hole 42 is provided at the corresponding part of the cylinder 44, and a fabric layer 43 is provided in the middle of the rubber lining. The drum strip 41 can structurally open the space between the inner wall of the cylinder 44 and the rubber lining, so that the outside air can more easily enter the space from the air hole 42 to fill it, making it easier for the rubber lining to rise and fall, and reducing the adhesion of materials to the rubber lining; the fabric layer 43 can improve the toughness of the rubber lining, making it less likely to break, and extending its service life.

[0030] Specifically, Figure 3 As shown, the rotary drum granulator 4 includes a cylinder 44, a driving device 45, a front supporting roller device 46 and a rear supporting roller device 47. The cylinder 44 is horizontally arranged, and the inner wall of the cylinder 44 is provided with a rubber lining. One end of the cylinder 44 is a feed port 33, and the other end of the cylinder 44 is provided with a discharge box. A large gear ring, a front wheel belt and a rear wheel belt are fixed to the outer periphery of the cylinder 44. The cylinder 44 is supported on the front supporting roller device 46 and the rear supporting roller device 47 through the front wheel belt and the rear wheel belt. The driving device 45 drives the cylinder 44 to rotate by driving the large gear ring. The rubber lining is fixed to the inner wall of the cylinder 44 through a plurality of long pressure plates 48 and bolts. The length extension direction of the long pressure plates 48 is parallel to the axial direction of the cylinder 44.

[0031] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0033] The above embodiments do not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

[0034] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An organic fertilizer granulation production system, including a pulverizer, a drum screen, a drum granulator, a dryer, a cooler and a packaging machine, and the materials between the devices are transported by a belt conveyor. Features: It also includes a batching bin, a forklift feeder and a double-shaft mixer. The dryer includes a primary dryer and a secondary dryer. The drum screen includes a primary drum screen and a secondary drum screen. The batching bin and the forklift feeder are connected to the double-shaft mixer through a belt conveyor at the same time. The double-shaft mixer, the drum granulator, the primary dryer, the primary drum screen, the secondary dryer, the secondary drum screen, the cooler and the packaging machine are connected in sequence through the belt conveyor. A crusher is also connected between the secondary drum screen and the drum granulator. The primary dryer, the secondary dryer and the cooler are also connected to a dust collector.

2. An organic fertilizer granulation production system according to claim 1, Features: The primary drum screen is provided with two discharge ports, namely, a discharge port for materials on the screen and a discharge port for materials under the screen. The discharge port for materials on the screen is connected to the secondary dryer, and the discharge port for materials under the screen is connected to the rotary drum granulator; the secondary drum screen is provided with two discharge ports, namely, a discharge port for finished materials and a discharge port for large-particle materials. The discharge port for finished materials is connected to the cooler, and the discharge port for large-particle materials is connected to the crusher.

3. An organic fertilizer granulation production system according to claim 1, Features: A film wrapping machine is also provided between the cooling machine and the packaging machine.

4. An organic fertilizer granulation production system according to claim 3, Features: A buffer silo is also provided between the film wrapping machine and the packaging machine.

5. An organic fertilizer granulation production system according to any one of claims 1 to 4, Features: The top of the shell of the twin-shaft mixer is provided with a spray port and an observation port. The spray port is arranged beside the feed port, and the observation port is covered with a top cover and is tightly pressed by a pressing assembly.

6. An organic fertilizer granulation production system according to any one of claims 1 to 4, Features: The rubber lining of the rotary drum granulator is fixed with a drum-raising strip on one side facing the inner wall of the cylinder, air holes are opened at the corresponding position of the cylinder, and a fabric layer is provided in the middle of the rubber lining.

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