Energy-saving organic fertilizer granulation production system
By setting up a drum screen in the organic fertilizer granulation production system to separate fine powder and large-particle materials, the energy waste caused by drying large-particle materials during secondary drying is solved, the organic fertilizer granulation process is optimized, and the overall energy consumption is reduced .
Patent Information
- Application Number
- CN202420939773.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In the existing organic fertilizer granulation process, large-particle materials are still included during secondary drying, resulting in energy waste and lack of effective screening steps to reduce drying of such materials.
In the organic fertilizer granulation production system, a drum screen is set up between the primary dryer and the secondary dryer, and fine powder, qualified and large-particle materials are screened through the drum to prevent large-particle materials from entering the secondary drying and reducing Energy consumption.
It effectively reduces energy consumption in the granulation production process of organic fertilizer, optimizes the production process, and ensures drying quality.
Smart Images
Figure CN222173972U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of organic fertilizer production, in particular to an energy-saving 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 generally includes the steps of granulation, drying, cooling, screening and packaging. At present, in order to ensure the drying effect, the materials are processed in the order of granulation, primary drying, primary screening, secondary drying, secondary screening, cooling and packaging. However, the primary screening only removes the fine powder materials, and the materials entering the secondary drying still contain a part of oversized large particles (this part of the materials is removed during the secondary screening process). The large particles are also dried during the secondary drying, which is a waste of energy. Utility Model Content
[0004] The utility model aims to provide an energy-saving organic fertilizer granulation production system to reduce the energy consumption in the organic fertilizer granulation production process on the basis of ensuring the drying quality.
[0005] In order to solve the above problems, the utility model adopts the following technical solutions:
[0006] An energy-saving organic fertilizer granulation production system comprises a pulverizer, a drum granulator, a dryer, a cooler, a drum screen and a packaging machine. Materials between the devices are transported by a belt conveyor. The dryer comprises a primary dryer and a secondary dryer. The drum screen is arranged between the primary dryer and the secondary dryer, and the drum screen is provided with three discharge ports, namely, a discharge port for fine powder materials, a discharge port for qualified materials and a discharge port for large particle materials. The discharge port for fine powder materials is connected to the drum granulator, the discharge port for large particle materials is connected to the pulverizer, the pulverizer is connected to the drum granulator, the discharge port for qualified materials is connected to the secondary dryer, the secondary dryer is connected to the cooler, and the cooler is connected to the packaging machine.
[0007] Optionally, a film wrapping machine is also provided between the cooling machine and the packaging machine.
[0008] Optionally, the drum screen includes a support frame, a shell, a screen drum and a driving mechanism, the shell and the driving mechanism are supported by the support frame, the screen drum rotates in the shell driven by the driving mechanism, a feed hopper is provided at one end of the screen drum, the discharge port for fine powder material and the discharge port for qualified material are located below the screen drum, and the discharge port for large particle material is located at the other end of the screen drum. Taking the material flow direction as the front-to-back direction, the feed hopper is located at the front end of the screen drum, and the discharge port for large particle material is located at the rear end of the screen drum, and the screen hole size of the front section of the screen drum is smaller than the screen hole size of the rear section of the screen drum.
[0009] Optionally, the drum screen is a shaftless drum screen, with both ends of the screen drum extending out of the shell and supported by supporting wheels, one end of the screen drum being equipped with a driving friction wheel or a driving gear, and when driven by a driving friction wheel, the driving friction wheel contacts and cooperates with the outer wall of the screen drum extending out of the shell; when a driving gear is used, a large gear ring is fixed to the outer wall of the screen drum extending out of the shell, and the large gear ring is meshed with the driving gear.
[0010] Optionally, a front baffle and a rear baffle are fixed on the outer wall of the screen drum, a baffle wheel is matched on the rear side of the rear baffle, a wheel surface of the baffle wheel is in rolling contact with the rear baffle, and the baffle wheel is installed on a support frame.
[0011] Optionally, a cleaning roller is further provided between the screen drum and the housing.
[0012] Optionally, a moisture drainage port is provided on the shell of the drum screen.
[0013] Optionally, a walkway is arranged on the support frame around the shell, a guardrail is arranged on the walkway, and an escalator is arranged on one side of the walkway.
[0014] Optionally, the shell includes an upper cover and a lower cover, and the lower cover is provided with an inspection door.
[0015] By adopting the above technical solution, the utility model has the following advantages:
[0016] The utility model, on the basis of arranging two-stage drying, completes the screening of fine powder materials, qualified materials and large particle materials between the two dryings, thereby eliminating the step of screening out large particles after the secondary drying. At the same time, it avoids the situation where large particle materials enter the subsequent process without being screened and occupy drying or cooling resources, thereby effectively reducing energy consumption and optimizing the production process of organic fertilizer granulation. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the layout of one embodiment of the utility model;
[0018] Figure 2 It is a structural schematic diagram of the drum screen in the utility model;
[0019] Figure 3 yes Figure 2 Left view of
[0020] Figure 4 yes Figure 2 Schematic diagram of the screen holes of the drum screen;
[0021] Figure 5 yes Figure 2 A local enlarged schematic diagram of point A in the middle.
[0022] Figure numerals: 1, drum granulator, 2, primary dryer, 3, drum screen, 4, secondary dryer, 5, cooler, 6, coating machine, 7, packaging machine, 8, pulverizer; 9, discharge port for fine powder materials, 10, discharge port for qualified materials, 11, discharge port for large particle materials, 12, support frame, 13, shell, 14, screen drum, 15, driving mechanism, 16, feed hopper, 17, driving gear, 18, large gear ring, 19, supporting wheel, 20, front baffle, 21, rear baffle, 22, blocking wheel, 23, cleaning roller, 24, dehumidification port, 25, walkway, 26, guardrail, 27, escalator, 28, upper cover, 29, lower cover, 30, inspection door. DETAILED DESCRIPTION
[0023] 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
[0024] An energy-saving organic fertilizer granulation production system, such as Figure 1 As shown, it includes a crusher 8, a drum granulator 1, a dryer, a cooler 5, a drum screen 3 and a packaging machine 7. The materials between the various devices are transported by a belt conveyor. The dryer includes a primary dryer 2 and a secondary dryer 4. The drum screen 3 is arranged between the primary dryer 2 and the secondary dryer 4, and the drum screen 3 is provided with three discharge ports, namely, a fine powder material discharge port 9, a qualified material discharge port 10 and a large particle material discharge port 11. The fine powder material discharge port 9 is connected to the drum granulator 1, and the large particle material discharge port 11 is connected to the crusher 8, and the crusher 8 is connected to the drum granulator 1, and the qualified material discharge port 10 is connected to the secondary dryer 4, and the secondary dryer 4 is connected to the cooler 5, and the cooler 5 is connected to the packaging machine 7. The specific arrangement order is: the drum granulator 1, the primary dryer 2, the drum screen 3, the secondary dryer 4, the cooler 5, and the packaging machine 7 are connected in sequence through a belt conveyor, and the primary dryer 2, the secondary dryer 4 and the cooler 5 are also connected to a dust collector. The structures of the drum granulator 1, the primary dryer 2, the secondary dryer 4, the cooler 5, the packaging machine 7, the pulverizer 8, the belt conveyor and the dust collector all adopt the existing technology and will not be described in detail.
[0025] When the present embodiment is in use, the organic fertilizer raw material is granulated in the drum granulator 1, and the granulated material enters the primary dryer 2 for drying, and then is sorted by the drum screen 3. This screening can distinguish fine powder material, qualified material, and large particle material. After screening, the fine powder material is returned to the drum granulator 1 for re-granulation, and the large particle material is first crushed by the pulverizer 8, and then returned to the drum granulator 1 for re-granulation. The qualified material enters the secondary dryer 4 for further drying to ensure the drying effect. At the same time, the materials dried by the secondary dryer 4 are all qualified materials. Compared with the situation where all the materials that have not been completely screened enter the secondary dryer 4, the energy consumption is effectively reduced. Afterwards, the finished material enters the cooler 5 for cooling, and the cooled material can be weighed and packaged.
[0026] In other embodiments, a stirring device may be provided before the drum granulator 1 to mix the organic fertilizer raw materials after fermentation and decomposition 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. A coating machine 6 and a buffer silo may be provided between the cooler 5 and the packaging machine 7. The coating machine 6 is a prior art, such as an organic fertilizer coating machine disclosed in the Chinese utility model patent with publication number CN210711333U. The coating machine 6 can make the organic fertilizer material and the coating material tumble, and the coating material can be attached to the surface of the finished material during tumbling to prevent adhesion. The buffer silo can temporarily store the finished material to relieve the turnover pressure.
[0027] Further, as one of the embodiments of the present invention, Figures 2 to 5 As shown, the drum screen 3 includes a support frame 12, a shell 13, a screen drum 14 and a driving mechanism 15, the shell 13 and the driving mechanism 15 are supported by the support frame 12, and the screen drum 14 rotates in the shell 13 driven by the driving mechanism 15, a feed hopper 16 is arranged at one end of the screen drum 14, and a feed bracket is arranged at the bottom of the feed hopper 16 to improve the supporting strength of the feed hopper 16, a fine powder material discharge port 9 and a qualified material discharge port 10 are located below the screen drum 14, and a large particle material discharge port 11 is located at the other end of the screen drum 14, with the material flow direction as the front and rear direction, the feed hopper 16 is located at the front end of the screen drum 14, and the large particle material discharge port 11 is located at the rear end of the screen drum 14, the screen hole size of the front section of the screen drum 14 is smaller than the screen hole size of the rear section of the screen drum 14, and the support leg of the support frame 12 located at the front side is higher than the support leg located at the rear side.
[0028] After the organic fertilizer material enters the screen drum 14 through the feed hopper 16, it tumbles as the screen drum 14 rotates. In this process, the fine powder material is screened out at the front section of the screen drum 14 and discharged from the fine powder material discharge port 9 below, and the material on the screen continues to be transported backward along the inclined direction of the drum screen 3. The qualified material is screened out at the rear section of the screen drum 14 and discharged from the qualified material discharge port 10 below, and the large particle material is discharged from the rear end of the screen drum 14.
[0029] Furthermore, the drum screen 3 is a shaftless drum screen 3, both ends of the screen drum 14 extend out of the shell 13 and are supported by supporting wheels 19, one end of the screen drum 14 is equipped with a driving friction wheel or a driving gear 17, when the driving friction wheel is used for driving, the driving friction wheel contacts and cooperates with the outer wall of the screen drum 14 extending out of the shell 13; when the driving gear 17 is used, a large gear ring 18 is fixed to the outer wall of the screen drum 14 extending out of the shell 13, and the large gear ring 18 is meshed with the driving gear 17.
[0030] Compared with the structure in which a rotating shaft is arranged in the middle of the screen drum 14, the drive of the screen drum 14 relies on the cooperation between the driving friction wheel or the driving gear 17 and the wall of the screen drum 14, which has a large torque, is more labor-saving, has a lower failure rate, and has a higher equipment reliability.
[0031] Furthermore, a front baffle 20 and a rear baffle 21 are fixed on the outer wall of the screen drum 14, which can play a certain limiting role. A stopper wheel 22 is matched at the rear side of the rear baffle 21, and the wheel surface of the stopper wheel 22 is in rolling contact with the rear baffle 21. The stopper wheel 22 is installed on the support frame 12. Since the screen drum 14 is arranged tilted, the stopper wheel 22 can prevent the screen drum 14 from shifting backward after working for a long time.
[0032] Furthermore, a cleaning roller 23 is provided between the screen drum 14 and the housing 13. The cleaning roller 23 can clean the materials adhering to the screen holes as the screen drum 14 rotates to avoid clogging of the screen holes.
[0033] Furthermore, a dehumidification port 24 is provided on the shell 13 of the drum screen 3, and the dehumidification port 24 can be connected to a dehumidifier to extract moisture from the screened material, which can further assist secondary drying and reduce energy consumption; if dehumidification is not required, the dehumidification port 24 can also be blocked by a flange.
[0034] Furthermore, a platform 25 is provided on the support frame 12 around the shell 13, a guardrail 26 is provided on the platform 25, and an escalator 27 is provided on one side of the platform 25, so as to facilitate walking close to the equipment for observation, maintenance and other operations.
[0035] Furthermore, the shell 13 includes an upper cover 28 and a lower cover 29 , and the lower cover 29 is provided with a maintenance 30 , which facilitates maintenance directly on the walkway 25 .
[0036] 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.
[0037] 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.
[0038] 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.
[0039] 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 energy-saving organic fertilizer granulation production system, including a pulverizer, a drum granulator, a dryer, a cooler, a drum screen and a packaging machine. The materials between the devices are transported by a belt conveyor. Features: The dryer comprises a primary dryer and a secondary dryer, the drum screen is arranged between the primary dryer and the secondary dryer, and the drum screen is provided with three discharge ports, namely a discharge port for fine powder materials, a discharge port for qualified materials and a discharge port for large particle materials, the discharge port for fine powder materials is connected to a rotary drum granulator, the discharge port for large particle materials is connected to a pulverizer, and the pulverizer is connected to a rotary drum granulator, the discharge port for qualified materials is connected to the secondary dryer, the secondary dryer is connected to a cooler, and the cooler is connected to a packaging machine.
2. An energy-saving 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.
3. An energy-saving organic fertilizer granulation production system according to claim 1, Features: The drum screen includes a support frame, a shell, a screen drum and a driving mechanism. The shell and the driving mechanism are supported by the support frame. The screen drum rotates in the shell driven by the driving mechanism. A feed hopper is arranged at one end of the screen drum. The discharge ports for fine powder materials and qualified materials are located below the screen drum, and the discharge port for large particle materials is located at the other end of the screen drum. Taking the material flow direction as the front-to-back direction, the feed hopper is located at the front end of the screen drum, and the discharge port for large particle materials is located at the rear end of the screen drum. The screen hole size of the front section of the screen drum is smaller than the screen hole size of the rear section of the screen drum.
4. An energy-saving organic fertilizer granulation production system according to claim 3, Features: The drum screen is a shaftless drum screen, with both ends of the screen drum extending out of the shell and supported by supporting wheels, one end of the screen drum being equipped with a driving friction wheel or a driving gear, and when the driving friction wheel is used for driving, the driving friction wheel contacts and cooperates with the outer wall of the screen drum extending out of the shell; when the driving gear is used, a large gear ring is fixed to the outer wall of the screen drum extending out of the shell, and the large gear ring is meshed with the driving gear.
5. An energy-saving organic fertilizer granulation production system according to claim 4, Features: A front baffle and a rear baffle are fixed on the outer wall of the screen drum, a baffle wheel is matched on the rear side of the rear baffle, a wheel surface of the baffle wheel is in rolling contact with the rear baffle, and the baffle wheel is installed on a supporting frame.
6. An energy-saving organic fertilizer granulation production system according to claim 3, Features: A cleaning roller is also provided between the screen drum and the shell.
7. An energy-saving organic fertilizer granulation production system according to any one of claims 1 to 6, Features: The shell of the drum screen is provided with a moisture discharge port.
8. An energy-saving organic fertilizer granulation production system according to claim 3, Features: A walkway is arranged on the supporting frame around the shell, a guardrail is arranged on the walkway, and an escalator is arranged on one side of the walkway.
9. An energy-saving organic fertilizer granulation production system according to claim 8, Features: The shell comprises an upper cover and a lower cover, and the lower cover is provided with an inspection door.