Organic fertilizer low-temperature drying equipment

Abstract

The utility model discloses an organic fertilizer low temperature drying equipment, including drying box body. The utility model discloses a first cylinder, second cylinder, solenoid valve has been used, in actual use process, personnel can control first cylinder and second cylinder according to the size difference of the organic fertilizer of subsequent need low temperature drying, and the distance of the drying spray head on two groups of bearing plate to the organic fertilizer changes, makes the spacing of the gas acting on the organic fertilizer is in the proper interval, guarantees the low temperature drying effect of whole, can also control the solenoid valve of the drying spray head place that has not been used to close according to the distribution difference of organic fertilizer, and the gas can be fully acted on the area where the organic fertilizer is located, and then guarantee the drying effect of whole, prevent the gas from the place that does not have the organic fertilizer and spray, and then lead to the waste of gas, improve the practicability of whole, have good drying effect, drying range adjustable, the advantage that the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of organic fertilizer production technology, specifically to a low-temperature drying device for organic fertilizer. Background Technology

[0002] Bio-organic fertilizer uses fermented poultry and livestock manure, animal and plant waste, straw, and kitchen waste, either alone or in combination, as a carrier, supplemented with live microorganisms that have disease-preventing and growth-promoting functions. This process helps improve soil fertility, reduce disease occurrence, and increase fertilizer utilization. To facilitate mechanical fertilization and ensure the survival of the functional microorganisms, bio-organic fertilizer can be produced as coated granules using industrial methods. The preparation process mainly includes crushing, sieving, mixing, granulation, cooling, granule sieving, coating, drying, and packaging. Because high-temperature drying can easily deactivate the organic matter in the sludge, low-temperature drying is generally used to dry the sludge, thereby achieving organic fertilizer production and ensuring the activity and effectiveness of the organic fertilizer.

[0003] Existing low-temperature drying equipment typically uses a plate mesh conveyor belt to transport and dry organic fertilizer raw materials. However, when the raw materials are placed on top of the plate mesh conveyor belt, only the lower part of the organic fertilizer comes into contact with the low-temperature drying air, making it difficult for the upper surface of the organic fertilizer raw materials to be dried. This results in uneven drying, affecting the drying effect and consequently the fertilizer efficacy. Furthermore, the spacing between the drying structure and the organic fertilizer, as well as the working range of the structure itself, cannot be flexibly adjusted. When the organic fertilizer is concentrated, the conveyor air cannot be concentrated on the area where the organic fertilizer is located, resulting in wasted conveyor air. Overall, the usage effect is not ideal.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a low-temperature drying device for organic fertilizer, which has the advantages of good drying effect, adjustable drying range, and strong practicality, thereby solving the problems mentioned in the background technology.

[0007] (II) Technical Solution

[0008] To achieve the advantages of good drying effect, adjustable drying range, and strong practicality, the specific technical solution adopted by this utility model is as follows:

[0009] A low-temperature drying device for organic fertilizer includes a drying chamber. A mesh belt conveyor is installed inside the drying chamber. A lower support plate is installed between the mesh belts on the mesh belt conveyor. A connecting plate is fixedly installed at one end of the lower support plate. The connecting plate is slidably connected to the surface of the drying chamber. The bottom of one end of the connecting plate is connected to a second cylinder. An upper support plate is installed directly above the mesh belt conveyor. A first cylinder is installed at the top center of the upper support plate. Several sets of drying nozzles are installed on the bottom surface of the upper support plate and the top surface of the lower support plate. One end of each drying nozzle is connected to a branch pipe. A solenoid valve is installed on the branch pipe. One end of the branch pipe is centrally connected to a flexible main pipe.

[0010] Furthermore, an air supply box is installed at the top of the drying chamber, and several sets of fans are installed on the air supply box. The two sides of the air supply box are respectively connected to the flexible main pipes at different positions.

[0011] Furthermore, fixing strips are symmetrically welded to the top positions of both sides inside the drying chamber, and a first guide rod is installed between the fixing strips and the top surface of the drying chamber. The first guide rod is slidably connected to the upper support plate.

[0012] Furthermore, a fixing plate is welded to one side surface of the drying chamber, and a second guide rod is installed at the top of the fixing plate, and the second guide rod is slidably connected to the connecting plate.

[0013] Furthermore, the upper and lower support plates are arranged alternately.

[0014] Furthermore, a controller is installed at the top of one side surface of the drying chamber.

[0015] Furthermore, the surface of the drying chamber is provided with a slot for the connecting plate to move.

[0016] Furthermore, a dustproof net is provided at the air inlet of the fan.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a low-temperature drying device for organic fertilizer, which has the following beneficial effects:

[0019] This invention employs a first cylinder, a second cylinder, and a solenoid valve. During actual use, personnel can control the first and second cylinders according to the different sizes of the organic fertilizer requiring low-temperature drying. This changes the distance between the drying nozzles on the two sets of support plates and the organic fertilizer, ensuring the gas reaches the fertilizer within a suitable range and guaranteeing the overall low-temperature drying effect. Simultaneously, the solenoid valves at unused drying nozzles can be closed based on the distribution of the organic fertilizer, ensuring the gas reaches the areas where the fertilizer is located, thus guaranteeing the overall drying effect and preventing gas from being sprayed out from areas without fertilizer, thus avoiding gas waste. This enhances the overall practicality and offers advantages such as good drying effect, adjustable drying range, and strong usability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a low-temperature drying equipment for organic fertilizer proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the connection between the flexible main pipe and the branch pipe of this utility model;

[0023] Figure 3 This is a schematic diagram of the connecting plate of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the first guide rod of this utility model.

[0025] In the picture:

[0026] 1. Drying chamber; 2. Mesh belt conveyor; 3. Lower support plate; 4. Drying nozzle; 5. Branch pipe; 6. Solenoid valve; 7. Fixing strip; 8. First guide rod; 9. Air supply box; 10. Fan; 11. First cylinder; 12. Upper support plate; 13. Controller; 14. Connecting plate; 15. Second guide rod; 16. Second cylinder; 17. Fixing plate; 18. Flexible main pipe. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] According to an embodiment of the present invention, a low-temperature drying device for organic fertilizer is provided.

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, an organic fertilizer low-temperature drying device according to an embodiment of this utility model includes a drying chamber 1. A mesh belt conveyor 2 is installed inside the drying chamber 1. A lower support plate 3 is installed between the mesh belts on the mesh belt conveyor 2. A connecting plate 14 is fixedly installed at one end of the lower support plate 3. The connecting plate 14 is slidably connected to the surface of the drying chamber 1. The bottom of one end of the connecting plate 14 is connected to a second cylinder 16. An upper support plate 12 is installed directly above the mesh belt conveyor 2. A first cylinder 11 is installed at the top center of the upper support plate 12. Several sets of drying nozzles 4 are installed on the bottom surface of the upper support plate 12 and the top surface of the lower support plate 3. One end of each drying nozzle 4 is connected to a branch pipe 5. A solenoid valve 6 is installed on the branch pipe 5. One end of the branch pipe 5 is centrally connected to a flexible main pipe 18. The mesh belt conveyor 2 serves as the organic fertilizer transport carrier. Its porous mesh belt structure allows hot air to penetrate the material layer, achieving simultaneous drying on both sides. Compared with traditional methods... Single-sided drying efficiency is improved; the lower support plate 3 is integrated in the middle of both sides of the mesh belt, and the drying nozzles 4 arranged on its surface can continuously blow hot air to the bottom of the material during the conveying process, avoiding material accumulation and drying dead corners; the connecting plate 14 adopts a sliding connection design, and the lower support plate 3 is driven by the second cylinder 16 to realize the vertical lifting and lowering, which can adapt to organic fertilizer particles of different sizes; the upper support plate 12 realizes dynamic height adjustment through the first cylinder 11, forming a clamping drying space with the lower support plate 3, ensuring that the upper and lower surfaces of the material are evenly exposed to air, and improving the drying uniformity; the nozzle array is distributed according to the density required by personnel, and the nozzle angle is set at 15° to form cross airflow coverage, avoiding material scattering caused by direct blowing; the solenoid valve 6 adopts pulse opening and closing control, and can close the nozzles in the empty area through the controller 13 according to the material distribution; the flexible main pipe 18 is made of high temperature resistant silicone material, which can freely deform with the lifting and lowering of the support plate, ensuring smooth air passage and no risk of leakage.

[0030] In one embodiment, an air supply box 9 is installed at the top of the drying chamber 1, and several sets of fans 10 are installed on the air supply box 9. The two sides of the air supply box 9 are connected to flexible main pipes 18 at different positions. The air supply box 9 adopts a chamber design, with independent left and right chambers connected to the upper and lower flexible main pipes 18 respectively. The air volume of the upper and lower air paths can be independently controlled by adjusting valves (which can be set according to personnel needs). The fans 10 are variable frequency centrifugal type with adjustable power of 2.2-7.5kW. With PID control algorithm, the temperature control accuracy reaches ±1℃, ensuring that the drying temperature is stable in the low temperature range of 40-60℃.

[0031] In one embodiment, fixing strips 7 are symmetrically welded to the top positions of both sides inside the drying chamber 1. A first guide rod 8 is installed between the fixing strip 7 and the top surface of the drying chamber 1. The first guide rod 8 is slidably connected to the upper support plate 12. The fixing strip 7 is made of thick steel plate and provides rigid support for the first guide rod 8. The first guide rod 8 enables the upper support plate 12 to rise and fall smoothly, ensuring the parallelism between the nozzle array and the material surface.

[0032] In one embodiment, a fixing plate 17 is welded to one side surface of the drying chamber 1, and a second guide rod 15 is installed at the top of the fixing plate 17. The second guide rod 15 is slidably connected to the connecting plate 14. The fixing plate 17 facilitates the installation, positioning, and subsequent maintenance and adjustment of the second guide rod 15. The second guide rod 15 ensures that the lower bearing plate 3 does not deviate during the lifting process.

[0033] In one embodiment, the upper support plate 12 and the lower support plate 3 are staggered, and the upper and lower nozzle arrays adopt a checkerboard staggered layout. The nozzle projection spacing can be set according to the requirements, such as 50mm, to form a three-dimensional cross air curtain, improve the hot air coverage, and effectively improve drying efficiency compared with the traditional aligned layout.

[0034] In one embodiment, a controller 13 is installed on the top of one side surface of the drying chamber 1. The controller 13 integrates a PLC and a touch screen, and can preset multiple sets of drying parameters and monitor data such as temperature, wind speed, and cylinder position in real time (the above data can be set by the corresponding sensors or detection components. If no settings are made, these data are not needed. The specific parameters and equipment can be adjusted according to the requirements, which will not be elaborated here). It supports the MODBUS communication protocol to realize remote control.

[0035] In one embodiment, a slot is provided on the surface of the drying chamber 1 for the connecting plate 14 to move. The slot is 5mm wider than the connecting plate 14 and is fitted with a wear-resistant nylon bushing to ensure smooth sliding and prevent heat loss.

[0036] In one embodiment, a dustproof net is provided at the air inlet of the fan 10, which effectively prevents dust from entering the air supply system and causing blockage.

[0037] Working Principle: In actual use, personnel can control the first cylinder 11 and the second cylinder 16 according to the different sizes of the organic fertilizer that needs to be dried at low temperature. The extension and retraction of the first cylinder 11 can drive the upper support plate 12 to move up and down accordingly, and the operation of the second cylinder 16 can drive the lower support plate 3 to move up and down accordingly. This changes the distance between the drying nozzles 4 on the two sets of support plates and the organic fertilizer. This avoids the situation where the distance is too large, which would weaken the gas flow and reduce the amount of gas acting on the organic fertilizer, or the situation where the distance is too small, which would cause the gas to strongly impact the organic fertilizer and damage it. This ensures the overall low-temperature drying effect. At the same time, the solenoid valves 6 at the unused drying nozzles 4 can be closed according to the different distribution of the organic fertilizer, so that the gas can fully act on the area where the organic fertilizer is located, thus ensuring the overall drying effect and preventing the gas from being sprayed out from the area without organic fertilizer, thus wasting gas and improving the overall practicality. The device has the advantages of good drying effect, adjustable drying range, and strong practicality.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-temperature drying device for organic fertilizer, comprising a drying chamber (1), characterized in that, A mesh belt conveyor (2) is installed inside the drying chamber (1). A lower bearing plate (3) is installed between the mesh belts on the mesh belt conveyor (2). A connecting plate (14) is fixedly installed at one end of the lower bearing plate (3). The connecting plate (14) is slidably connected to the surface of the drying chamber (1). The bottom of one end of the connecting plate (14) is connected to the second cylinder (16). An upper bearing plate (12) is installed directly above the mesh belt conveyor (2). A first cylinder (11) is installed at the middle of the top of the upper bearing plate (12). Several sets of drying nozzles (4) are installed on the bottom surface of the upper bearing plate (12) and the top surface of the lower bearing plate (3). One end of the drying nozzle (4) is connected to a branch pipe (5). A solenoid valve (6) is installed on the branch pipe (5). One end of the branch pipe (5) is connected to the flexible main pipe (18).

2. The low-temperature drying equipment for organic fertilizer according to claim 1, characterized in that, An air supply box (9) is installed at the top of the drying box (1). Several sets of fans (10) are installed on the air supply box (9). The two sides of the air supply box (9) are connected to the flexible main pipe (18) at different positions.

3. The low-temperature drying equipment for organic fertilizer according to claim 1, characterized in that, The drying chamber (1) has symmetrically welded fixing strips (7) at the top of both sides inside. A first guide rod (8) is installed between the fixing strip (7) and the top surface of the drying chamber (1). The first guide rod (8) is slidably connected to the upper bearing plate (12).

4. The low-temperature drying equipment for organic fertilizer according to claim 1, characterized in that, A fixing plate (17) is welded to one side surface of the drying box (1), and a second guide rod (15) is installed at the top of the fixing plate (17), and the second guide rod (15) is slidably connected to the connecting plate (14).

5. The low-temperature drying equipment for organic fertilizer according to claim 1, characterized in that, The upper support plate (12) and the lower support plate (3) are arranged alternately.

6. The low-temperature drying equipment for organic fertilizer according to claim 1, characterized in that, A controller (13) is installed at the top of one side surface of the drying chamber (1).

7. The low-temperature drying equipment for organic fertilizer according to claim 1, characterized in that, The surface of the drying chamber (1) is provided with a slot for the connecting plate (14) to move.

8. The low-temperature drying equipment for organic fertilizer according to claim 2, characterized in that, The air inlet of the fan (10) is equipped with a dustproof net.

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