Production system of powder water-soluble fertilizer

Abstract

The utility model discloses a production system of a powder water-soluble fertilizer, which comprises an original crusher, a belt conveyor I, a stirrer, a charging machine, a storage bin and the like, and is additionally provided with a suspension screen and a vibrating screen. The suspension screen is suspended below a discharge port of the crusher through an upper tension spring, and two sides of the suspension screen are connected with two ends of a roller of the belt conveyor I through lower tension springs. The vibrating screen is installed between the stirrer and the storage bin, and a discharge port of the stirrer is connected with the vibrating screen through a movable blanking groove. A filter screen of the vibrating screen is of an overturning structure, one side edge is connected with a vibrating screen body through a rotating shaft piece, and the other side edge is clamped and fixed through a pressure spring clamping piece. And at the discharge end of the vibrating screen, the upper part is an impurity falling groove communicated with the filter screen, and the lower part is a finished product outlet communicated with the vibrating screen bottom plate. The suspended screen and the vibrating screen are utilized, so that the appearance condition of a product is improved. The two stirrers are used for stirring and discharging at the same time, so that the production efficiency is improved.

Description

Technical Field

[0001] The utility model is applied to the field of water-soluble fertilizer production, relates to the production of powdered water-soluble fertilizer, and specifically is a production system after technical transformation. Background Art

[0002] Water-soluble fertilizers are hailed as the new favorite fertilizer, and those containing humic acid are a hot topic for fertilizer companies. Water-soluble fertilizers can be formulated as water-based, granular, or powdered. Granular water-soluble fertilizers offer greater convenience and versatility, typically being applied by broadcasting, flushing, hole application, or drip irrigation. Powdered water-soluble fertilizers are typically applied with water as a fertilizer substitute via drip irrigation or flushing. For crops that demand high quality and high economic returns, such as Sunshine Rose grapes, kiwifruit, citrus fruits, organic strawberries, and watermelons, which require relatively high amounts of fertilizer, powdered water-soluble fertilizers are the preferred choice.

[0003] The powdered water-soluble fertilizer production system purchased by the company is as follows Figure 1 As shown, after being crushed by crusher 1, the purchased raw materials are conveyed by belt conveyor I 2 to mixer 3. Simultaneously, feeder 8 adds weighed additional micro-granular fertilizer raw materials to mixer 3. All the raw materials are mixed uniformly in mixer 3 and then conveyed by belt conveyor II 4 to storage silo 5. From there, they are conveyed by screw feeder 6 to packaging machine 7, where they are weighed and sealed. The powdered water-soluble fertilizer products produced by this production system have the following problems: 1) uneven particle size, with large particles present in the powder, resulting in poor appearance; 2) the presence of foreign matter, such as small pieces of wood and plastic strips, which are associated with the purchased raw materials. Customers have repeatedly raised concerns about the poor appearance, which has affected product sales. 3) To ensure a stable raw material ratio, the mixer operates periodically, only adding raw materials when the powder in the mixer is completely empty. This results in low production efficiency. This not only affects delivery time but also affects employee income. Therefore, the company is revamping the production system.

[0004] Numerous patent applications have been filed for water-soluble fertilizer production systems, including CN212915401U, a water-soluble fertilizer production system that includes processes such as feeding, conveying, lifting, mixing, distributing, and weighing, which also results in the aforementioned poor product appearance. CN205635407U, a solid water-soluble fertilizer production system, combines various raw materials in a stirring device to form solid water-soluble fertilizer. This solution adds a screening machine between the pulverizer and the stirring device. While this achieves uniform particle size in the crushed material, the quality of the raw materials fed into the stirring device also directly affects the product appearance. Utility Model Content

[0005] The technical problem solved by the utility model is: in view of the above problems, a production system for powdered water-soluble fertilizer is provided, which adds two screening steps to improve the appearance quality of the powdered water-soluble fertilizer and adds a mixer to improve production efficiency.

[0006] The technical solution adopted by the present invention is as follows: the production system of powdered water-soluble fertilizer includes the original crusher, belt conveyor I, mixer, feeder, storage bin, etc., and adds a hanging screen and a vibrating screen. The hanging screen is installed between the crusher and belt conveyor I. The hanging screen is suspended below the crusher discharge port by an upper tension spring, and is connected to the turntables at both ends of the belt conveyor I shaft by lower tension springs on both sides. When the roller of belt conveyor I rotates, the hanging screen elastically vibrates to achieve screening. The vibrating screen is installed between the mixer and the storage bin, and the mixer discharge port is connected to the vibrating screen by a movable discharge chute. The vibrating screen includes a rotating shaft, a compression spring clamp, a filter, a debris discharge chute, and a finished product outlet. The filter is a flip structure, and one side of the filter is connected to the vibrating screen body by a rotating shaft, and the other side is fixed by a compression spring clamp. Remove the discharge chute, loosen the compression spring clamp, and flip the filter to clean the blocked particles. At the discharge end of the vibrating screen, the upper part is a debris chute connected to the filter screen, which is used to collect debris in the raw materials; the lower part is a finished product outlet connected to the bottom plate of the vibrating screen, which is used to transport the finished products to the storage bin.

[0007] To improve production efficiency, two mixers are arranged symmetrically. The loading end of conveyor belt I is rotatably connected to the platform, while the discharge end is supported by a bracket. The bottom wheel of the bracket mates with the curved rail on the platform. The discharge end of conveyor belt I can be moved to feed different mixers. The discharge pipes of the feeders are either rotary or valve-type, corresponding to the two mixers.

[0008] The beneficial effects of the present invention are as follows: on the basis of the original layout, the present invention adds a hanging screen and a vibrating screen, thereby improving the appearance and quality of the product; using two mixers, the material addition and mixing and the material discharge can be carried out simultaneously, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the production system before the technological transformation;

[0010] Figure 2 It is a schematic diagram of the utility model;

[0011] Figure 3 yes Figure 2 Schematic top view of

[0012] Figure 4 yes Figure 2 A-direction schematic diagram in FIG;

[0013] Figure 5 It is a schematic diagram of the cross-sectional structure of the vibrating screen;

[0014] Figure 6 yes Figure 4 Schematic top view of

[0015] In the figure: 1-crusher, 2-belt conveyor I, 3-mixer, 4-belt conveyor II, 5-storage bin, 6-screw feeder, 7-packaging machine, 8-feeder;

[0016] 11- hanging screen, 12- raw material hopper, 13- curved rail, 14- dropping chute, 15- vibrating screen, 16- debris bucket;

[0017] 21-rotating shaft, 22-compression spring clamp, 23-filter, 24-debris chute, 25-finished product outlet. DETAILED DESCRIPTION

[0018] The layout of the production system of the utility model powder water-soluble fertilizer after technical transformation is as shown in the attached Figure 2 and attached Figure 3 As shown, it also includes a crusher 1, a belt conveyor Ⅰ 2, a mixer 3, a storage bin 5, a screw feeder 6, a packaging machine 7, and a feeder 8. After the transformation, a hanging screen 11 and a vibrating screen 15 are added, and a mixer 3 is also added.

[0019] The hanging screen 11 is installed between the crusher 1 and the belt conveyor Ⅰ2, and is suspended below the crusher discharge port through an upper tension spring. The two sides of the hanging screen 11 are connected to the turntables at both ends of the belt conveyor Ⅰ2 rotating shaft through lower tension springs, as shown in the attached figure. Figure 4 As shown in the figure, when conveyor belt I transports material, the rotating shaft drives the turntable to rotate, which in turn drives the tension spring to repeatedly stretch and return, causing the suspension screen 11 to vibrate. A material hopper 12 is placed below the discharge port of suspension screen 11. The crushed material from the crusher falls from the discharge port onto the suspension screen, where the fine powder falls onto conveyor belt I. The larger particles fall into the hopper, which is then fed into the granular water-soluble fertilizer production line for extrusion and granulation.

[0020] The vibrating screen 15 is installed between the mixer 3 and the storage bin 5. The discharge port of the mixer 3 is connected to the vibrating screen 15 through the feeding chute 14. The powder in the mixer falls onto the vibrating screen 15 through the feeding chute 14. The feeding chute 14 is movable and can be unscrewed or removed from above the vibrating screen 15. The structure of the vibrating screen 15 is shown in the attached figure. Figure 5 and attached Figure 6As shown, it includes a rotating shaft 21, a compression spring clamp 22, a filter 23, a debris chute 24, and a finished product outlet 25. The filter 23 is a flip structure, one side of which is connected to the vibrating screen body through the rotating shaft 21, and the other side is fixed by the compression spring clamp 22. The compression spring clamp 22 is fixedly mounted on the vibrating screen body, and the pull pin clamps the filter. When the filter is clogged with granular material and needs to be cleaned, remove the drop chute 14, pull out the pull pin of the compression spring clamp 22, loosen the filter, and then rotate the filter around the rotating shaft 21. The upper surface of the filter is flipped, and the filter is knocked, and the granular material blocking the filter falls. After the filter is cleaned, rotate the filter back, clamp the filter with the pull pin, and move it back to the drop chute 14 to enter the working state. The filter is convenient and quick to clean. At the discharge end of the vibrating screen 15, there is a debris chute 24 at the top and a finished product outlet 25 at the bottom. The debris chute 24 is connected to the filter screen, and the finished product outlet 25 is connected to the bottom plate of the vibrating screen. The debris chute 24 collects debris on the filter screen, such as small pieces of wood and plastic strips, and vibrates and drops them into the debris bucket 16 below it. The finished product outlet 25 sends the fine powder material that leaks from the filter screen 23 into the storage bin 5. The detailed structure of the vibrating screen can be found in the applicant's previous patent application, "A Vibrating Screen for Granular Fertilizer Raw Materials" (Shuangshen, application numbers 2024221854909 and 2024112472350). The difference is that the vibrating screen in this application has only one layer of filter screen, while the vibrating screen in the previous patent application has multiple layers of filter screen.

[0021] To increase production efficiency, the present invention adds a mixer 3, and the two mixers are arranged symmetrically. When one mixer is discharging, the other mixer is adding materials. The two mixers ensure that the mixing and discharging operations are carried out simultaneously, saving production time and improving production efficiency. The belt conveyor I2 is fixed at the feeding end below the hanging screen 11 and is rotatably connected to the platform. The discharge end is supported by a bracket. The rotating wheel at the bottom of the bracket cooperates with the curved rail 13 on the platform. When the rotating wheel moves on the curved rail 13, the belt conveyor I rotates around the fixed end, and its discharge end can be switched between the two mixers. Corresponding to the two mixers, the feeder 8 is located on the platform above the mixer 3. The discharge pipe below it can be set to a rotary type or a valve type. Only the structure of the discharge pipe is changed, and no feeder is added.

[0022] The crusher 1, storage bin 5, screw feeder 6, and packaging machine 7 of the utility model are all set in their original positions without modification. A mixer has been added, and the positions of the mixer and feeder 8 have been adjusted. A hanging screen 11 has been added, and a vibrating screen 15 has replaced the belt conveyor II 4. The belt conveyor I 2 has been changed from a fixed type to a rotatable type, capable of conveying materials to both mixers. The main investment in the equipment is the mixer 3 and the vibrating screen 15. The hanging screen is homemade, and vibration screening is achieved by using tension springs and the rotation of the belt conveyor rollers, without increasing energy consumption. The power of the vibrating screen 15 replaces the power of the belt conveyor II 4. After the technical modification, only the power of the mixer 3 has been increased.

[0023] This new system uses a suspended screen to separate the larger 0.1%-0.2% of particles from the crushed material, and a vibrating screen to separate debris. This results in a uniform, impurity-free finished product with excellent appearance, earning praise from users. The addition of a mixer allows for simultaneous mixing and discharging, improving production efficiency. This production system renovation fully utilizes the existing layout, requiring minimal equipment investment and energy consumption.

Claims

1. A production system for powdered water-soluble fertilizer, comprising a crusher, a belt conveyor I, a mixer, a feeder, and a storage bin, characterized in that: Also includes a hanging screen (11) and a vibrating screen (15); The hanging screen (11) is installed between the crusher and the belt conveyor I. The hanging screen (11) is suspended below the crusher discharge port by an upper tension spring, and is connected to the turntables at both ends of the belt conveyor I rotating shaft by lower tension springs on both sides. The vibrating screen (15) is installed between the mixer and the storage bin, and the mixer's discharge port is connected to the vibrating screen (15) via a movable discharge chute (14); the vibrating screen (15) comprises a rotating shaft (21), a compression spring clamp (22), a filter (23), a debris discharge chute (24), and a finished product outlet (25); the filter (23) is a flip structure, one side of the filter (23) is connected to the vibrating screen body via the rotating shaft (21), and the other side is clamped and fixed via a compression spring clamp (22); the discharge end of the vibrating screen (15) has a debris discharge chute (24) in communication with the filter at the upper portion, and a finished product outlet (25) in communication with the bottom plate of the vibrating screen at the lower portion.

2. A production system for a powdered water-soluble fertilizer according to claim 1, characterized in that: The mixers are two in symmetrical arrangement.

3. A production system for a powdered water-soluble fertilizer according to claim 2, characterized in that: The feeding end of the belt conveyor I is rotatably connected to the platform, and the blanking end is supported by a bracket; the bottom wheel of the bracket cooperates with the arc rail (13) on the platform.

4. A production system for a powdered water-soluble fertilizer according to claim 2, characterized in that: The discharge pipe of the feeder is a rotary type or a valve type, corresponding to the two mixers.

Images